CN117040246A - Full liquid cooling modularized energy storage converter with load breaking function - Google Patents
Full liquid cooling modularized energy storage converter with load breaking function Download PDFInfo
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- CN117040246A CN117040246A CN202311206081.6A CN202311206081A CN117040246A CN 117040246 A CN117040246 A CN 117040246A CN 202311206081 A CN202311206081 A CN 202311206081A CN 117040246 A CN117040246 A CN 117040246A
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- 238000001816 cooling Methods 0.000 title claims abstract description 163
- 239000007788 liquid Substances 0.000 title claims abstract description 121
- 238000004146 energy storage Methods 0.000 title claims abstract description 106
- 238000002955 isolation Methods 0.000 claims abstract description 27
- 230000005855 radiation Effects 0.000 claims abstract description 24
- 238000007664 blowing Methods 0.000 claims abstract description 12
- 238000001914 filtration Methods 0.000 claims description 22
- 239000003990 capacitor Substances 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000000306 component Substances 0.000 description 60
- 230000007246 mechanism Effects 0.000 description 11
- 238000005192 partition Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
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- 230000002159 abnormal effect Effects 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 239000000110 cooling liquid Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 206010010904 Convulsion Diseases 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000036461 convulsion Effects 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
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- 239000002184 metal Substances 0.000 description 2
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- 230000005856 abnormality Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
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- 238000003466 welding 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
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- 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
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/209—Heat transfer by conduction from internal heat source to heat radiating structure
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20927—Liquid coolant without phase change
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Protection Of Static Devices (AREA)
Abstract
The application relates to the technical field of energy storage converters, and provides an all-liquid-cooled modularized energy storage converter with a load breaking function, which comprises the following components: a cabinet body; the power module is arranged in the cabinet body; the functional component is arranged in the cabinet body and is opposite to the power module; the liquid cooling plate is arranged on the power module and used for cooling the power module; the baffle is arranged in the cabinet body and connected with the liquid cooling plate, and the space in the cabinet body is divided into a first air channel and a second air channel by the baffle and the liquid cooling plate; the heat radiation plate is arranged in the second air duct and is connected with the power module; the first fan is arranged in the first air channel, and is used for blowing air to the power module and blowing air flow into the second air channel; the second fan is arranged in the second air duct, and is used for exhausting the functional component and blowing air flow into the first air duct; the direct current isolation switch device is arranged on the cabinet body and is used for direct current isolation and direct current protection.
Description
Technical Field
The application relates to the technical field of energy storage converters, in particular to an all-liquid-cooled modularized energy storage converter with a load breaking function.
Background
In the related art, the energy storage converter is matched with the alternating current breaker and the direct current high-voltage switch box in the integrated cabinet body when the system is integrated, and the energy storage integrated system can have reliable protection and isolation measures in the aspects of alternating current-direct current short-circuit protection and overload protection.
When the energy storage system of the energy storage converter is integrated in the actual use process, the direct-current high-voltage switch box has a tendency of gradually canceling due to the consideration of design optimization, structural space and cost. In the process of controlling the battery to charge and discharge by using the energy storage converter, if the battery side is abnormal, such as the battery voltage is too high or too low, the problems of unqualified insulating property, thermal runaway of the battery, exceeding of voltage unbalance, communication disconnection and the like may occur.
Therefore, how to reliably protect and isolate the direct current side of the energy storage integrated system when the problems occur after the direct current high voltage switch box is canceled, particularly when emergency situations such as battery thermal runaway, communication loss, uncontrolled energy storage converter and the like occur, and the technical problem to be solved is still needed.
Disclosure of Invention
The application aims to at least solve the technical problems that the direct current side of the energy storage integrated system can be reliably protected and isolated when the abnormality occurs on the battery side after the direct current high-voltage switch box is canceled in the prior art or the related art.
Therefore, the application provides the full liquid cooling modularized energy storage converter with the on-load breaking function.
In view of this, the application provides an all-liquid-cooled modularized energy storage converter with load breaking function, comprising: a cabinet body; the power module is arranged in the cabinet body; the functional component is arranged in the cabinet body and is opposite to the power module; the functional component comprises a direct current power unit which is arranged in the cabinet body and is used for controlling the on-off of a direct current side and providing direct current overcurrent protection; the direct current power unit comprises a direct current fuse; the liquid cooling plate is arranged on the power module and used for cooling the power module; the baffle is arranged in the cabinet body and connected with the liquid cooling plate, and the space in the cabinet body is divided into a first air channel and a second air channel by the baffle and the liquid cooling plate; the heat radiation plate is arranged in the second air duct and is connected with the power module; the first fan is arranged in the first air channel, and is used for blowing air to the power module and blowing air flow into the second air channel; the second fan is arranged in the second air duct, and is used for exhausting the functional component and blowing air flow into the first air duct; the direct current isolating switch device is arranged on the cabinet body and is connected with the direct current fuse, and the direct current isolating switch device is used for direct current isolation and direct current protection.
The application provides a full liquid cooling modularized energy storage converter with a load breaking function. Specifically, the power module is arranged in the cabinet body, is a core component of the full liquid cooling modularized energy storage converter with the on-load breaking function, can control the voltage and the frequency of a power system, has the capability of charging and discharging, and can effectively store and release electric energy. The functional component comprises a direct current power unit which is arranged in the cabinet body and is used for controlling the on-off of a direct current side and providing direct current overcurrent protection; the DC power unit comprises a DC fuse which is used for overcurrent and short-circuit protection and can be rapidly opened under the overload condition of the fuse. The liquid cooling plate is arranged on the power module, and can cool the power module in a liquid cooling mode. The cabinet body is also provided with a baffle plate, the baffle plate is connected with the liquid cooling plate, and then the space in the cabinet body is separated to form a first air channel and a second air channel, so that air flow can circularly flow in the first air channel and the second air channel of the cabinet body. Still be provided with the heat radiation board in the cabinet body, the heat radiation board sets up in the second wind channel, and the heat radiation board is connected with power module, and the heat radiation board can absorb power module's heat to other space radiation in the cabinet body with the heat, with the cooling effect of promoting power module. A first fan and a second fan are respectively arranged in the first air duct and the second air duct. The first fan is arranged in the first air channel and used for blowing air to the power module, the cooling plate is provided with the cooling fin, the cooling fin can conduct low temperature on the liquid cooling plate to the first air channel, when the first fan blows air towards the power module, cold air flow conducted by the liquid cooling plate can be blown into the second air channel, the second fan is arranged in the second air channel and used for exhausting air to the functional component, heat of the functional component is taken away, air flow is blown into the first air channel, and then the air flow circularly flows in the first air channel and the second air channel of the cabinet body. The direct current isolation switch device is arranged on the cabinet body, the direct current isolation switch device is connected with the direct current fuse, and the direct current isolation switch device is used for direct current isolation and direct current protection.
Specifically, the first fan and the second fan form an air cooling system of the full liquid cooling modularized energy storage converter with the load breaking function, and the partition plate is connected with the liquid cooling plate to separate the space in the cabinet body into a first air channel and a second air channel, so that air in the cabinet body can form a cooling loop which circulates up and down when the air cooling system operates. The cooling air can be blown to the lower layer of the cabinet body through the cooling fins on the first fan and the liquid cooling plate. The second fan that sets up in the second wind channel can take away functional unit's heat through the convulsions, and first fan and second fan are bloied, an convulsions, wholly maintain the inside air operation ambient temperature of energy storage converter.
According to the full liquid cooling modularized energy storage converter with the on-load breaking function, the partition plate is arranged in the cabinet body and connected with the liquid cooling plate to divide the space in the cabinet body into the first air channel and the second air channel, so that an internal air flow circulation cooling loop is formed. The application adopts the liquid cooling plate, the first fan and the second fan to realize the mixed cooling of liquid cooling and air cooling. Through the mutual cooperation of the liquid cooling plate, the first fan and the second fan, the power density of unit volume can be ensured to be high enough, the cost can be controlled, the application reliability is improved, and the maintenance complexity is reduced. Through set up the baffle in the cabinet body, the baffle is connected with the liquid cooling board and becomes first wind channel and second wind channel with the internal space separation of cabinet, constitutes inside air current circulation cooling circuit, has optimized cooling method and thermal management overall arrangement, and the cabinet body inside that has the full liquid cooling modularization energy storage converter of carrying breaking function can maintain in the temperature range of settlement, and inside components and parts work under suitable environmental condition, effectively avoid temperature variation to lead to the power to hold down.
According to the application, through the liquid cooling loop formed by the liquid cooling plate, the radiating fins on the liquid cooling plate and the first fan and the second fan in the cabinet body, the use effect of the liquid cooling part can be maximized, the temperature in the whole liquid cooling modularized energy storage converter with the load breaking function is maintained at the set running environment temperature, the internal components are kept to work under the optimal environment condition, the power capacity reduction caused by the temperature change is avoided, the air channel in the cabinet body is optimized by arranging the partition plate, the circulation of air in the cabinet body is smoother, the flow efficiency of the air is improved, the internal environment temperature is effectively reduced, and the efficient operation of the internal components is kept. The full liquid cooling modularized energy storage converter with the load breaking function is compact in structure, small in size and low in cost, the upper and lower independent air channels enable heat to be not accumulated locally, the air contact surface is increased through the radiating fins, and the cooling effect is improved.
The application provides a brand-new and small-volume full liquid cooling modularized energy storage converter with a load breaking function, which can directly disconnect a battery pack from the full liquid cooling modularized energy storage converter with the load breaking function under the condition of full load, has the capacity of load breaking while playing the role of completely isolating the full liquid cooling modularized energy storage converter with the load breaking function from the battery pack, solves the problem that a direct current contactor and a direct current isolating switch have no load breaking capacity, and simultaneously avoids the use of a space-occupying and large-volume high-cost device on the direct current side by using a circuit breaker and an electric operating mechanism. By adding the direct current isolation switch device with the on-load breaking function, the direct current side has the function of high-voltage direct current isolation no matter the energy storage integrated system has a direct current high-voltage switch box or not, and the energy storage integrated system has the remote breaking function. When the battery side is abnormal, particularly when emergency situations such as battery thermal runaway, communication disconnection, uncontrolled full liquid cooling modularized energy storage converter with on-load breaking function and the like occur, whether the energy storage converter is in a full load state or other load states or not can be remotely and rapidly disconnected with the full liquid cooling modularized energy storage converter with on-load breaking function, so that the system design is more flexible, the cost scheme is more excellent, and the control is more convenient and rapid.
In addition, the full liquid cooling modularized energy storage converter with the on-load breaking function in the technical scheme provided by the application can also have the following additional technical characteristics:
in some embodiments, optionally, the dc isolating switch device includes: the switch device is arranged on the cabinet body and is connected with the direct-current fuse; the operating handle is connected with the switch device and used for controlling the switch device to be turned on or turned off; the remote breaking assembly is arranged on the cabinet body and used for remote control and direct current isolation and direct current protection.
In this solution, optionally, the direct current disconnector device comprises a switching device, an operating handle and a remote breaking assembly. Specifically, the operating handle is connected with the switch device and is used for controlling the switch device to be turned on or off so as to realize direct current isolation and direct current protection, and the remote breaking assembly can remotely and rapidly cut off the connection between the battery pack and the full liquid cooling modularized energy storage converter with the on-load breaking function so as to realize direct current isolation and direct current protection.
The remote turn-off function is to apply a voltage signal to a shedding shunt of the switching device, the switching device can be tripped and disconnected, the switching device is disconnected with the direct current fuse, the switching device is a body mechanical mechanism part of the direct current isolating switching device, and the connection between a battery side and the full liquid cooling modularized energy storage converter with the on-load breaking function is realized through the turn-on and turn-off of the body mechanical mechanism part. The operating handle is an external manual operating mechanism with which the switching device can be manually closed and opened.
In practical applications, the switching device may take the form of a circuit breaker and an electrically operated mechanism, i.e. the switching device comprises a circuit breaker and an electrically operated mechanism for dc isolation and dc protection.
In some technical schemes, optionally, in the height direction of the full liquid cooling modularized energy storage converter with the load breaking function, the first air channel is positioned above the second air channel, the first fan is positioned above the power module, and the air outlet of the first fan faces the power module; the air inlet of the second fan faces the functional component.
In the technical scheme, in the height direction of the full liquid cooling modularized energy storage converter with the load breaking function, the first air channel is positioned above the second air channel, and the first fan and the second fan operate simultaneously, so that air flow can circularly flow in the first air channel and the second air channel to form a circular cooling loop. Specifically, the first fan is located the top of power module, and the air outlet of first fan is towards power module, through the fin on first fan and the liquid cooling board, and the during operation of first fan can blow the second wind channel with the cold air current. The air inlet of the second fan faces the functional component, the second fan can take away the heat of the functional component through air draft, the first fan and the second fan blow air and air draft, and the air operation environment temperature inside the full liquid cooling modularized energy storage converter with the load breaking function is maintained together.
In some embodiments, optionally, the power module includes: the power assembly is arranged in the first air duct; the reactor component is arranged in the second air duct and is positioned between the liquid cooling plate and the heat radiation plate; wherein, the liquid cooling board is located between power subassembly and reactor subassembly.
In this technical scheme, the power module includes power component and reactor subassembly. Specifically, power module sets up in first wind channel, and the reactor subassembly sets up in the second wind channel, and the liquid cooling board is located between power module and the reactor subassembly, and one side and the power module of liquid cooling board are connected, and the opposite side and the reactor subassembly of liquid cooling board are connected, and the liquid cooling board can carry out liquid cooling to power module and reactor subassembly. The reactor component is located between the liquid cooling plate and the heat radiation plate, the heat radiation plate can absorb heat of the reactor component and radiate the heat to other spaces in the cabinet body, and then the cooling effect of the reactor component can be improved, so that the reactor component can operate in a proper temperature environment.
In some technical solutions, optionally, the full liquid cooling modularized energy storage converter with the on-load breaking function further includes: the direct current support unit is arranged in the cabinet body and connected with the power assembly, and the direct current support unit is used for providing direct current side energy for power conversion of equipment.
In the technical scheme, the full liquid cooling modularized energy storage converter with the on-load breaking function further comprises a direct current support unit. Specifically, the direct current supporting unit is arranged in the cabinet body, is connected with the power assembly and is used for providing direct current side energy for equipment power conversion.
In some embodiments, optionally, the dc support unit includes: the supporting capacitor is arranged in the cabinet body and used for providing direct-current side energy; and the laminated busbar is used for connecting the supporting capacitor and the power component. The direct current support unit also comprises a fixed structural member for fixed connection.
In this technical scheme, the direct current support unit includes supporting capacitor and stromatolite busbar. The supporting capacitor is arranged in the cabinet body, is fixedly installed with the sheet metal part through a bottom bolt, and the anode, the middle point and the cathode of the supporting capacitor are connected in parallel through the laminated busbar and lead out wiring terminals U+, U-U0 and U-U0, and are respectively connected with the power component.
In some embodiments, optionally, the dc power unit further includes: the direct current contactor is arranged in the cabinet body and is connected with the direct current fuse; and the direct current sensor is connected with the direct current fuse and is positioned between the direct current fuse and the laminated busbar.
In this technical scheme, the direct current power unit includes direct current contactor, direct current fuse and direct current sensor. Specifically, the direct current contactor is connected with the cabinet body, the direct current contactor is used for breaking direct current, and when the direct current is broken, arc light is not extinguished temporarily when alternating current passes through zero, so that a special device for extinguishing the arc light is designed inside the direct current contactor. The direct current fuse is connected with the direct current contactor, and the direct current fuse is used for overcurrent and short-circuit protection, and can be disconnected rapidly under the condition that the fuse is overloaded. The direct current sensor is connected with the direct current fuse and is used for detecting direct current. The direct current sensor is positioned between the direct current fuse and the laminated busbar.
The direct current sensor is fixed on the copper bar in the middle of the direct current fuse and the laminated busbar, and the direct current contactor, the direct current fuse and the direct current plug connector connected with the outside are connected into a unified whole through the copper bar. The direct current copper bar, the direct current contactor, the direct current fuse and the direct current plug connector form a complete direct current output loop, and all the components are fixedly connected through bolts.
In some embodiments, optionally, the functional component includes: the alternating current power unit is arranged in the cabinet body and connected with the power module, and the alternating current power unit is used for controlling on-off of an alternating current side and providing alternating current overcurrent protection.
In this solution, the functional component comprises an ac power unit. Specifically, the alternating current power unit is arranged in the cabinet body, is connected with the power module, and is used for controlling on-off of an alternating current side and providing alternating current and overcurrent protection.
The alternating current power unit is connected with the reactor component through soft connection and is connected with an alternating current plug connector connected with the outside through soft connection.
In some embodiments, optionally, the ac power unit includes: the alternating current relay is arranged in the cabinet body; and the alternating current fuse is connected with the alternating current relay.
In this technical solution, the ac power unit includes an ac relay and an ac fuse. Specifically, the alternating current relay is connected with the cabinet body, the alternating current relay can control the switching operation of the full liquid cooling modularized energy storage converter with the load breaking function, and when abnormal conditions occur, the circuit can be rapidly cut off, so that the equipment is protected from damage. The alternating current fuse is connected with the alternating current relay, and is used for overcurrent and short-circuit protection, and when faults such as short circuit or overload occur in the circuit, the alternating current fuse can rapidly disconnect the circuit, so that the current is prevented from continuously increasing, and equipment in the circuit is prevented from being damaged.
Specifically, the ac relay, the ac fuse, and the ac plug-in connector connected to the outside are connected together as a unified whole by the board-mounted welding method of the circuit board.
In some technical solutions, optionally, the full liquid cooling modularized energy storage converter with the on-load breaking function further includes: the filtering unit comprises a filtering capacitor and is used for filtering harmonic waves; the control unit is used for collecting voltage, current and temperature information and combining a preset software algorithm to realize grid connection, charge and discharge and grid connection and disconnection functions.
In the technical scheme, the full liquid cooling modularized energy storage converter with the on-load breaking function further comprises a filtering unit and a control unit. Specifically, the filtering unit is composed of a filtering capacitor in an on-board mode of a circuit board, harmonic waves can be generated when the switching device works, and the filtering unit is used for filtering the harmonic waves, so that voltage and current waveforms output by the full liquid cooling modularized energy storage converter with the on-board breaking function are smoother.
The control unit is used as a core control executing mechanism of the full liquid cooling modularized energy storage converter with the load breaking function and is used for sampling information such as voltage, current, temperature and the like, combining related software algorithms, realizing functions such as grid connection, charge and discharge, grid connection and the like, and executing functions such as digital quantity control and reading, external communication and the like.
Additional aspects and advantages of the application will be set forth in part in the description which follows, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 shows a schematic structural diagram of an all-liquid-cooled modular energy storage converter with load breaking function according to an embodiment of the present application;
fig. 2 shows a schematic structural diagram of an all-liquid-cooled modular energy storage converter with load breaking function according to a further embodiment of the present application;
fig. 3 shows a schematic structural diagram of an all-liquid-cooled modular energy storage converter with load breaking function according to another embodiment of the present application;
fig. 4 shows a schematic structural diagram of an all-liquid-cooled modular energy storage converter with load breaking function according to another embodiment of the present application;
fig. 5 shows a schematic structural diagram of an all-liquid-cooled modular energy storage converter with load breaking function according to another embodiment of the present application;
fig. 6 shows a schematic structural diagram of an all-liquid-cooled modular energy storage converter with load breaking function according to another embodiment of the present application;
Fig. 7 shows a schematic structural diagram of an all-liquid-cooled modular energy storage converter with load breaking function according to another embodiment of the present application;
fig. 8 shows a schematic structural diagram of an all-liquid-cooled modular energy storage converter with load breaking function according to another embodiment of the present application;
fig. 9 shows a schematic structural diagram of an all-liquid-cooled modular energy storage converter with load breaking function according to another embodiment of the present application;
fig. 10 shows a schematic structural diagram of an all-liquid-cooled modular energy storage converter with load breaking function according to another embodiment of the present application.
Wherein, the correspondence between the reference numerals and the component names in fig. 1 to 10 is:
the full liquid cooling modularized energy storage converter with the load breaking function comprises a 110 cabinet body, a 112 partition board, a 114 first air channel, a 116 second air channel, a 120 power module, a 121 liquid cooling plate, a 122 power module, a 123 reactor module, a 124 heat radiation plate, a 126 radiating fin, a 128 functional module, a 130 direct current supporting unit, a 131 supporting capacitor, a 132 laminated busbar, a 133 fixed structural member, a 140 direct current power unit, a 141 direct current contactor, a 142 direct current fuse, a 143 alternating current relay, a 144 alternating current fuse, a 145 direct current sensor, a 146 alternating current power unit, a 151 alternating current plug-in connector, a 152 direct current plug-in connector, a 153 signal interface, a 154 indicator lamp, a 156 cooling liquid inlet and outlet, a 157 exhaust valve, a 160 first fan, a 161 air outlet, a 162 second fan, a 164 air inlet, a 170 control unit, a 180 filter unit, a 190 direct current isolation switch device, a 191 switch device, a 192 remote breaking module and a 193 operating handle.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.
The following describes in detail, with reference to fig. 1 to 10, an all-liquid-cooled modular energy storage converter 100 with on-load breaking function according to an embodiment of the present application through a specific embodiment and an application scenario thereof.
The application provides an all-liquid-cooling modularized energy storage converter 100 with a load breaking function, as shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10, the all-liquid-cooling modularized energy storage converter 100 with the load breaking function comprises: a cabinet 110; the power module 120 is arranged in the cabinet 110; the functional component 128 is arranged in the cabinet body 110, and the functional component 128 is arranged opposite to the power module 120; the functional component 128 includes a dc power unit 140, disposed in the cabinet 110, where the dc power unit 140 is used to control on-off of the dc side and provide dc overcurrent protection; the dc power unit 140 includes a dc fuse 142; the liquid cooling plate 121 is arranged on the power module 120, and the liquid cooling plate 121 is used for cooling the power module 120; the baffle 112 is arranged in the cabinet 110, the baffle 112 is connected with the liquid cooling plate 121, and the baffle 112 and the liquid cooling plate 121 divide the space in the cabinet 110 into a first air channel 114 and a second air channel 116; the heat radiation plate 124 is arranged in the second air duct 116 and is connected with the power module 120; the first fan 160 is disposed in the first air duct 114, and the first fan 160 is configured to blow air to the power module 120 and blow air to the second air duct 116; the second fan 162 is disposed in the second air duct 116, and the second fan 162 is configured to exhaust air from the functional components 128 and blow air into the first air duct 114; the dc isolating switch device 190 is disposed on the cabinet 110, the dc isolating switch device 190 is connected to the dc fuse 142, and the dc isolating switch device 190 is used for dc isolation and dc protection.
The full liquid cooling modularized energy storage converter 100 with the on-load breaking function comprises a cabinet body 110, a power module 120, a functional component 128, a liquid cooling plate 121, a partition plate 112, a heat radiation plate 124, a first fan 160, a second fan 162 and a direct current isolation switch device 190. Specifically, the power module 120 is disposed in the cabinet 110, and the power module 120 is a core component of the full liquid cooling modular energy storage converter 100 with a load breaking function, so that the voltage and frequency of the power system can be controlled, and meanwhile, the power module has the capability of charging and discharging, and can effectively store and release electric energy. The functional component 128 includes a dc power unit 140, disposed in the cabinet 110, where the dc power unit 140 is used to control on-off of the dc side and provide dc overcurrent protection; the dc power unit 140 includes a dc fuse 142, and the dc fuse 142 is used for overcurrent and short-circuit protection, and can be opened rapidly in case of overload of the fuse. The liquid cooling plate 121 is disposed on the power module 120, and the liquid cooling plate 121 can cool the power module 120 in a liquid-cooled manner. A partition plate 112 is further disposed in the cabinet 110, and the partition plate 112 is connected with the liquid cooling plate 121, so that a first air channel 114 and a second air channel 116 are formed by separating the space in the cabinet 110, and air flow can circulate in the first air channel 114 and the second air channel 116 of the cabinet 110. Still be provided with heat radiation plate 124 in cabinet body 110, heat radiation plate 124 sets up in second wind channel 116, and heat radiation plate 124 is connected with power module 120, and heat radiation plate 124 can absorb power module 120's heat to other space radiation in cabinet body 110 with the cooling effect of promotion power module 120. A first fan 160 and a second fan 162 are disposed within the first air duct 114 and the second air duct 116, respectively. The first fan 160 is disposed in the first air duct 114 and is used for blowing air to the power module 120, since the cooling plate 121 is provided with the cooling fins 126, the cooling fins 126 can conduct the low temperature on the cooling plate 121 to the first air duct 114, when the first fan 160 blows air towards the power module, the cooling air flow conducted by the cooling plate 121 can be blown into the second air duct 116, the second fan 162 is disposed in the second air duct 116 and is used for exhausting the functional components 128, taking away the heat of the functional components 128 and blowing the air flow into the first air duct 114, so that the air flow circularly flows in the first air duct 114 and the second air duct 116 of the cabinet 110, and the black arrows in fig. 2 indicate the direction of the air flow circularly flowing in the first air duct 114 and the second air duct 116 of the cabinet 110. The dc isolating switch device 190 is disposed on the cabinet 110, the dc isolating switch device 190 is connected to the dc fuse 142, and the dc isolating switch device 190 is used for dc isolation and dc protection.
Specifically, the first fan 160 and the second fan 162 form an air cooling system of the full liquid cooling modularized energy storage converter 100 with the on-load breaking function, and the partition 112 is connected with the liquid cooling plate 121 to separate the space in the cabinet 110 into the first air duct 114 and the second air duct 116, so that the air in the cabinet 110 can form a cooling loop which circulates up and down when the air cooling system operates. Cool air may be blown to the lower layer of the cabinet 110 through the first fan 160 and the cooling fins 126 on the liquid cooling plate 121. The second fan 162 arranged in the second air duct 116 can take away the heat of the functional component 128 through air draft, and the first fan 160 and the second fan 162 are one air blower and one air draft, so that the air operation environment temperature inside the energy accumulator converter is integrally maintained.
According to the full liquid cooling modularized energy storage converter 100 with the on-load breaking function, the partition 112 is arranged in the cabinet body 110, and the partition 112 is connected with the liquid cooling plate 121 to divide the space in the cabinet body 110 into the first air duct 114 and the second air duct 116, so that an internal air flow circulation cooling loop is formed. The application adopts the liquid cooling plate 121, the first fan 160 and the second fan 162 to realize the mixed cooling of liquid cooling and air cooling. Through the mutual cooperation of the liquid cooling plate 121, the first fan 160 and the second fan 162, the power density of unit volume can be ensured to be high enough, the cost can be controlled, the application reliability is improved, and the maintenance complexity is reduced. Through set up baffle 112 in cabinet body 110, baffle 112 is connected with liquid cooling board 121 and is separated into first wind channel 114 and second wind channel 116 with the space in the cabinet body 110, constitutes inside air current circulation cooling circuit, has optimized cooling method and thermal management overall arrangement, and the cabinet body 110 inside of the full liquid cooling modularization energy storage converter 100 that has the breaking function of carrying can maintain in the temperature range of settlement, and inside components and parts work under suitable environmental condition, effectively avoid temperature variation to lead to the power to fall to hold.
According to the application, the direct-current isolation switch device 190 with the on-load breaking function is added in the full liquid-cooled modularized energy storage converter 100 with the on-load breaking function, so that the energy storage integrated system has the function of high-voltage direct-current isolation on the direct-current side no matter whether a direct-current high-voltage switch box exists or not, and has the remote breaking function. Under the abnormal condition of the system, whether the energy storage converter is in a full load state or other load states or not, the connection between the battery pack and the full liquid cooling modularized energy storage converter 100 with the on-load breaking function can be cut off remotely and rapidly, so that the system is more flexible in design, better in cost scheme and more convenient and rapid to control.
In practical applications, the full liquid-cooling modularized energy storage converter 100 with the on-load breaking function can also fix each device on the liquid cooling plate 121, and cooling is realized by adopting a full liquid cooling mode, or an empty water exchanger is adopted as an alternative way for heat dissipation of internal devices.
In practical application, the full liquid cooling modularized energy storage converter 100 with the on-load breaking function is composed of seven parts, namely a power module 120, a direct current support unit 130, a direct current power unit 140, an alternating current power unit 146, a filtering unit 180, a control unit 170 and an external interface. When the first fan 160 arranged on the upper layer of the cabinet body 110 operates, cold air on the cooling fins 126 of the liquid cooling plate 121 can be blown to the lower layer of the cabinet body 110, and the second fan 162 arranged on the lower layer of the cabinet body 110 can take away heat of devices such as a heating element, a switching power supply, an alternating current relay 143, an alternating current fuse 144, a direct current fuse 142, a direct current contactor 141 and the like through air draft, so that the first fan 160 and the second fan 162 blow and air draft, and the air operation environment temperature inside the energy storage converter is integrally maintained.
As shown in fig. 1, the external interfaces of the full liquid-cooled modular energy storage converter 100 with the on-load breaking function include a signal interface 153 and a cooling liquid inlet and outlet 156. The cooling liquid inlet/outlet 156 is connected to the liquid cooling plate 121, and is used for the inlet/outlet of the cooling liquid in the liquid cooling plate 121. The indicator light 154 is disposed on the cabinet 110, and the indicator light 154 is used for indicating the working state of the full liquid cooling modularized energy storage converter 100 with the on-load breaking function.
As shown in fig. 7 and 8, the all-liquid-cooled modular energy storage converter 100 with the load breaking function further includes an exhaust valve 157, where the exhaust valve 157 is mainly used for exhaust.
In some embodiments, optionally, as shown in fig. 3, the dc isolating switch device 190 includes: the switching device 191 is arranged on the cabinet 110, and the switching device 191 is connected with the direct current fuse 142; an operation handle 193 connected to the switching device 110 for controlling the switching device 191 to be turned on or off; the remote breaking assembly 192 is disposed on the cabinet 110 and is used for remote control to realize dc isolation and dc protection.
In this embodiment, optionally, the dc isolating switching device 190 includes a switching device 191, an operating handle 193, and a remote break assembly 192. Specifically, the operating handle 193 is connected to the switching device 191, and is used for controlling the switching device 191 to be turned on or off so as to realize dc isolation and dc protection, and the remote breaking component 192 can remotely and rapidly cut off the connection between the battery pack and the full liquid-cooled modular energy storage converter 100 with the on-load breaking function so as to realize dc isolation and dc protection.
Specifically, the remote turn-off function is to apply a voltage signal to the shedding shunt of the switching device 191, and the switching device can be tripped and opened to disconnect the switching device 191 from the dc fuse 142, and the switching device 191 is a mechanical body mechanism component of the dc isolating switch device 190, so that the connection between the battery side and the full-liquid-cooled modular energy storage converter 100 with the on-load breaking function is realized through the closing and opening of the mechanical body mechanism component. The operation handle 193 is an external manual operation mechanism, and the switching device 191 can be manually turned on and off by the operation handle 193.
In some embodiments, optionally, as shown in fig. 2, in a height direction of the full liquid-cooled modular energy storage converter 100 with the load breaking function, the first air duct 114 is located above the second air duct 116, the first fan 160 is located above the power module 120, and an air outlet 161 of the first fan 160 faces the power module 120; the air intake 164 of the second fan 162 is directed toward the functional component 128.
In this embodiment, in the height direction of the full liquid-cooled modular energy storage converter 100 with the load breaking function, the first air duct 114 is located above the second air duct 116, and the first fan 160 and the second fan 162 operate simultaneously, so that the air flow can circulate in the first air duct 114 and the second air duct 116, and a circulation cooling loop is formed. Specifically, the first fan 160 is located above the power module 120, and the air outlet 161 of the first fan 160 faces the power module 120, and when the first fan 160 works, cold air can be blown to the second air duct 116 through the first fan 160 and the cooling fins 126 on the liquid cooling plate 121. The air inlet 164 of the second fan 162 faces the functional component 128, the second fan 162 can take away the heat of the functional component 128 through air draft, and the first fan 160 and the second fan 162 are one air blower and one air draft, so that the air operation environment temperature inside the full liquid cooling modularized energy storage converter 100 with the load breaking function is commonly maintained.
In some embodiments, optionally, as shown in fig. 2, the power module 120 includes: the power assembly 122 is disposed in the first air duct 114; the reactor component 123 is arranged in the second air duct 116, and the reactor component 123 is positioned between the liquid cooling plate 121 and the heat radiation plate 124; wherein the liquid cooling plate 121 is located between the power assembly 122 and the reactor assembly 123.
In this embodiment, the power module 120 includes a power assembly 122 and a reactor assembly 123. Specifically, the power assembly 122 is disposed in the first air duct 114, the reactor assembly 123 is disposed in the second air duct 116, the liquid cooling plate 121 is disposed between the power assembly 122 and the reactor assembly 123, one side of the liquid cooling plate 121 is connected with the power assembly 122, the other side of the liquid cooling plate 121 is connected with the reactor assembly 123, and the liquid cooling plate 121 can perform liquid cooling on the power assembly 122 and the reactor assembly 123. The reactor component 123 is located between the liquid cooling plate 121 and the heat radiation plate 124, and the heat radiation plate 124 can absorb heat of the reactor component 123 and radiate the heat to other spaces in the cabinet 110, so that a cooling effect on the reactor component 123 can be improved, and the reactor component 123 can operate in a proper temperature environment.
In some embodiments, optionally, as shown in fig. 2, the all-liquid-cooled modular energy storage converter 100 with the on-load breaking function further includes: the dc supporting unit 130 is disposed in the cabinet 110 and connected to the power module 122, and the dc supporting unit 130 is used for providing dc side energy for power conversion of the device.
In this embodiment, the all-liquid-cooled modular energy storage converter 100 with load breaking function further comprises a dc support unit 130. Specifically, the dc supporting unit 130 is disposed in the cabinet 110, the dc supporting unit 130 is connected to the power module 122, and the dc supporting unit 130 is used for providing dc side energy for power conversion of the device. The dc support unit 130 further includes a fixing structure 133 for fixing connection.
In some embodiments, optionally, as shown in fig. 2, the dc support unit 130 includes: the supporting capacitor 131 is arranged in the cabinet 110, and the supporting capacitor 131 is used for providing direct-current side energy; a stacked busbar 132, the stacked busbar 132 being used to connect the support capacitor 131 and the power component 122.
In this embodiment, the dc supporting unit 130 includes a supporting capacitor 131 and a laminated busbar 132. The supporting capacitor 131 is arranged in the cabinet body 110, the supporting capacitor 131 is fixedly installed with the sheet metal part through a bottom bolt, the anode, the middle point and the cathode of the supporting capacitor 131 are connected in parallel through the laminated busbar 132 and lead out the wiring terminals U+, U-U0, and the wiring terminals are respectively connected with the power component 122.
In some embodiments, optionally, as shown in fig. 2 and 4, the dc power unit 140 further includes: the dc contactor 141 is disposed in the cabinet 110 and connected to the dc fuse 142; the dc current sensor 145 is connected to the dc fuse 142, and the dc current sensor 145 is located between the dc fuse 142 and the laminated busbar 132.
In this embodiment, the dc power unit 140 includes a dc contactor 141, a dc fuse 142, and a dc current sensor 145. Specifically, the dc contactor 141 is connected to the cabinet 110, and the dc contactor 141 is used for breaking dc current, and when the dc current is broken, the arc light is not extinguished temporarily when the ac current passes through the dc contactor, so that a special device for extinguishing the arc light is designed inside the dc contactor 141. The dc fuse 142 is connected to the dc contactor 141, and the dc fuse 142 is used for overcurrent and short-circuit protection, and can be opened rapidly in case of overload of the fuse. The dc current sensor 145 is connected to the dc fuse 142, and the dc current sensor 145 detects a dc current. The dc current sensor 145 is located between the dc fuse 142 and the laminated busbar 132.
The dc current sensor 145 is fixed on the copper bar between the dc fuse 142 and the laminated busbar 132, and the dc contactor 141, the dc fuse 142, and the dc plug 152 connected to the dc current sensor 145 and the outside are connected to form a unified whole by the copper bar. The direct current copper bar, the direct current contactor 141, the direct current fuse 142 and the direct current plug connector 152 form a complete direct current output loop, and all the components are fixedly connected through bolts.
In practical applications, the dc plug 152 of the full-liquid-cooled modular energy storage converter 100 with load breaking function may be replaced by a heavy-duty terminal.
In some embodiments, optionally, as shown in fig. 5, the functional components 128 include: the ac power unit 146 is disposed in the cabinet 110 and connected to the power module 120, and the ac power unit 146 is used for controlling on-off of an ac side and providing ac-to-ac protection.
In this embodiment, the functional component 128 includes an ac power unit 146. Specifically, the ac power unit 146 is disposed in the cabinet 110, the ac power unit 146 is connected to the power module 120, and the ac power unit 146 is used for controlling on-off of an ac side and providing ac-to-dc protection.
In practical applications, ac power unit 146 is connected to reactor assembly 123 via a flexible connection, and is connected to externally connected ac plug 151 via a flexible connection.
In practical application, the power components 122 and the reactor components 123 are respectively distributed on the upper and lower sides of the liquid cooling plate 121, and are fixed into a whole through screw connection, and then the whole is fixed on the side surface of the full liquid cooling modularized energy storage converter 100 with the load breaking function, the other surface of the reactor components 123 is fully contacted with the heat radiation plate 124, the power components 122 are respectively connected with the input of the reactor components 123 through flexible connection, and the output of the reactor components 123 is also connected with the alternating current power unit 146 through the flexible connection.
In some embodiments, optionally, as shown in fig. 5, the ac power unit 146 includes: an ac relay 143 disposed in the cabinet 110; the ac fuse 144 is connected to the ac relay 143.
In this embodiment, the ac power unit 146 includes an ac relay 143 and an ac fuse 144. Specifically, the ac relay 143 is connected to the cabinet 110, and the ac relay 143 can control the switching operation of the all-liquid-cooled modular energy storage converter 100 having the load breaking function, and can rapidly cut off the circuit when an abnormal condition occurs, thereby protecting the equipment from damage. The ac fuse 144 is connected to the ac relay 143, and the ac fuse 144 is used for overcurrent and short-circuit protection, and when a fault such as a short circuit or overload occurs in the circuit, the ac fuse 144 can rapidly disconnect the circuit, thereby avoiding the current from increasing continuously and protecting the equipment in the circuit from damage.
Specifically, the ac relay 143, the ac fuse 144, and the externally connected ac plug 151 are integrally connected to each other by board-mounted soldering of the circuit board.
In practical applications, the ac power unit 146 may also use a disconnecting switch and a contactor to control the on-off of the ac side and provide ac-to-dc protection, or use a contactor to control the on-off of the ac side and provide ac-to-dc protection.
In practical applications, the ac plug 151 of the all-liquid-cooled modular energy storage converter 100 with the load breaking function may be replaced by a heavy-load terminal.
In some embodiments, optionally, as shown in fig. 4, the all-liquid-cooled modular energy storage converter 100 with the on-load breaking function further includes: the filtering unit 180, the filtering unit 180 includes a filtering capacitor, and the filtering unit 180 is used for filtering out harmonic waves; the control unit 170 is configured to collect voltage, current and temperature information, and combine with a preset software algorithm to implement grid-connected, charge-discharge and grid-connected functions.
In this embodiment, the all-liquid-cooled modular energy storage converter 100 with on-load breaking function further includes a filtering unit 180 and a control unit 170. Specifically, the filtering unit 180 is formed by a filtering capacitor in an on-board form of a circuit board, and when the switching device works, harmonic waves can be generated, and the filtering unit 180 is used for filtering out the harmonic waves, so that the voltage and current waveforms output by the full liquid cooling modularized energy storage converter 100 with the on-load breaking function are smoother.
The control unit 170 is used as a core control executing mechanism of the full liquid cooling modularized energy storage converter 100 with the load breaking function, and is used for sampling information such as voltage, current, temperature and the like, combining related software algorithms, realizing functions such as grid connection, charge and discharge, grid connection and the like, and executing functions such as digital quantity control and reading, external communication and the like.
According to the application, through the liquid cooling loop formed by the liquid cooling plate 121, the cooling fins 126 on the liquid cooling plate 121 and the first fan 160 and the second fan 162 in the cabinet 110, the use effect of the liquid cooling part can be maximized, the temperature in the whole liquid cooling modularized energy storage converter 100 with the load breaking function is maintained at the set running environment temperature, the internal components are kept to work under the optimal environment condition, the power capacity reduction caused by temperature change is kept, the air channel in the cabinet 110 is optimized by arranging the partition 112, the circulation of air in the cabinet 110 is smoother, the flow efficiency of the air is improved, the internal environment temperature is effectively reduced, and the efficient operation of the internal components is kept. In addition, the full liquid cooling modularized energy storage converter 100 with the on-load breaking function is compact in structure, small in size and low in cost; the upper and lower independent air channels and the heat are not accumulated locally; the cooling effect is increased by increasing the air contact surface by the heat sink 126.
According to the application, the direct-current isolation switch device 190 with the on-load breaking function is added, so that the direct-current side of the energy storage integrated system has the function of high-voltage direct-current isolation no matter whether a direct-current high-voltage switch box exists or not, and the energy storage integrated system has the remote breaking function. Under the abnormal condition of the system, whether the energy storage converter is in a full load state or other load states or not, the connection between the battery pack and the full liquid cooling modularized energy storage converter 100 with the on-load breaking function can be cut off remotely and rapidly, so that the system is more flexible in design, better in cost scheme and more convenient and rapid to control.
In the present application, the term "plurality" means two or more, unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. The utility model provides an all liquid cooling modularization energy storage converter with take year breaking function which characterized in that includes:
a cabinet body;
the power module is arranged in the cabinet body;
the functional component is arranged in the cabinet body and is opposite to the power module; the functional component comprises a direct current power unit which is arranged in the cabinet body and is used for controlling on-off of a direct current side and providing direct current overcurrent protection; the direct current power unit comprises a direct current fuse;
the liquid cooling plate is arranged on the power module and is used for cooling the power module;
the baffle is arranged in the cabinet body and connected with the liquid cooling plate, and the space in the cabinet body is divided into a first air channel and a second air channel by the baffle and the liquid cooling plate;
the heat radiation plate is arranged in the second air duct and is connected with the power module;
the first fan is arranged in the first air duct, and is used for blowing air to the power module and blowing air flow into the second air duct;
the second fan is arranged in the second air duct, and is used for exhausting the functional component and blowing air flow into the first air duct;
The direct current isolating switch device is arranged on the cabinet body and is connected with the direct current fuse, and the direct current isolating switch device is used for direct current isolation and direct current protection.
2. The full liquid cooled modular energy storage converter with load breaking function of claim 1, wherein the dc isolating switch device comprises:
the switch device is arranged on the cabinet body and is connected with the direct current fuse;
the operating handle is connected with the switching device and used for controlling the switching device to be turned on or turned off;
the remote breaking assembly is arranged on the cabinet body and used for remote control and direct current isolation and direct current protection.
3. The full liquid-cooled modular energy storage converter with the on-load breaking function according to claim 1, wherein in the height direction of the full liquid-cooled modular energy storage converter with the on-load breaking function, the first air duct is located above the second air duct, the first fan is located above the power module, and an air outlet of the first fan faces the power module; and an air inlet of the second fan faces the functional component.
4. The full liquid cooled modular energy storage converter with load breaking function of claim 1, wherein the power module comprises:
the power assembly is arranged in the first air duct;
the reactor component is arranged in the second air duct and is positioned between the liquid cooling plate and the heat radiation plate;
wherein the liquid cooling plate is located between the power assembly and the reactor assembly.
5. The all-liquid-cooled modular energy storage converter with load breaking function of claim 4, further comprising:
the direct-current support unit is arranged in the cabinet body and connected with the power assembly, and the direct-current support unit is used for providing direct-current side energy for power conversion of equipment.
6. The full liquid cooled modular energy storage converter with load breaking function of claim 5, wherein the dc support unit comprises:
the supporting capacitor is arranged in the cabinet body and is used for providing direct-current side energy;
and the laminated busbar is used for connecting the supporting capacitor and the power component.
7. The full liquid cooled modular energy storage converter with load breaking function of claim 6, wherein the dc power unit further comprises:
The direct current contactor is arranged in the cabinet body and is connected with the direct current fuse;
and the direct current sensor is connected with the direct current fuse and is positioned between the direct current fuse and the laminated busbar.
8. An all-liquid-cooled modular energy storage converter with load-break function according to any of claims 1 to 7, wherein the functional assembly further comprises:
the alternating current power unit is arranged in the cabinet body and connected with the power module, and the alternating current power unit is used for controlling on-off of an alternating current side and providing alternating current overcurrent protection.
9. The full liquid cooled modular energy storage converter with load breaking function of claim 8, wherein the ac power unit comprises:
the alternating current relay is arranged in the cabinet body;
and the alternating current fuse is connected with the alternating current relay.
10. The all-liquid-cooled modular energy storage converter with load-break function of any of claims 1-7, further comprising:
the filtering unit comprises a filtering capacitor and is used for filtering harmonic waves;
the control unit is used for collecting voltage, current and temperature information and combining a preset software algorithm to realize grid connection, charge and discharge and grid connection and disconnection functions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311206081.6A CN117040246A (en) | 2023-09-19 | 2023-09-19 | Full liquid cooling modularized energy storage converter with load breaking function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311206081.6A CN117040246A (en) | 2023-09-19 | 2023-09-19 | Full liquid cooling modularized energy storage converter with load breaking function |
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| CN117040246A true CN117040246A (en) | 2023-11-10 |
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| CN202311206081.6A Pending CN117040246A (en) | 2023-09-19 | 2023-09-19 | Full liquid cooling modularized energy storage converter with load breaking function |
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| CN210183237U (en) * | 2019-08-16 | 2020-03-24 | 廊坊英博电气有限公司 | Energy storage converter |
| US20220408604A1 (en) * | 2021-06-22 | 2022-12-22 | Integra Mission Critical, LLC | Systems and methods for cooling in power distribution centers |
| CN218679737U (en) * | 2022-05-10 | 2023-03-21 | 京清数电(北京)技术有限公司 | Phase-change cooling energy-storage converter |
| CN116471800A (en) * | 2023-03-21 | 2023-07-21 | 京清数电(北京)技术有限公司 | Internal hybrid cooling energy storage converter module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210183237U (en) * | 2019-08-16 | 2020-03-24 | 廊坊英博电气有限公司 | Energy storage converter |
| US20220408604A1 (en) * | 2021-06-22 | 2022-12-22 | Integra Mission Critical, LLC | Systems and methods for cooling in power distribution centers |
| CN218679737U (en) * | 2022-05-10 | 2023-03-21 | 京清数电(北京)技术有限公司 | Phase-change cooling energy-storage converter |
| CN116471800A (en) * | 2023-03-21 | 2023-07-21 | 京清数电(北京)技术有限公司 | Internal hybrid cooling energy storage converter module |
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