CN114801808A - High-power liquid-cooled super quick charging equipment - Google Patents

High-power liquid-cooled super quick charging equipment Download PDF

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Publication number
CN114801808A
CN114801808A CN202210522440.8A CN202210522440A CN114801808A CN 114801808 A CN114801808 A CN 114801808A CN 202210522440 A CN202210522440 A CN 202210522440A CN 114801808 A CN114801808 A CN 114801808A
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China
Prior art keywords
alternating current
cooling
charging device
current charging
liquid
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CN202210522440.8A
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Chinese (zh)
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CN114801808B (en
Inventor
张宏利
朱韬析
王勇
赵良
朱江涛
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Guangdong Tianshu New Energy Technology Co ltd
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Guangdong Tianshu New Energy Technology Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/302—Cooling of charging equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/31—Charging columns specially adapted for electric vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
    • G07F15/003—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for electricity
    • G07F15/005—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for electricity dispensed for the electrical charging of vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention relates to the technical field of heat dissipation equipment of charging facilities, and particularly provides high-power liquid-cooled super quick charging equipment, which comprises a shell, a control box, an alternating current charging device and a cooling device, wherein the shell is provided with a first end and a second end; the shell is in a vertical cabinet type, a vertical clapboard is arranged in the shell, and the vertical clapboard divides the interior of the shell into a first accommodating cavity and a second accommodating cavity; the control box is fixed on the shell and used for controlling the alternating current charging device to carry out quick charging and controlling the cooling device to carry out cooling on the alternating current charging device; the alternating current charging device is arranged in the first accommodating cavity and is used for charging the electric automobile; the cooling device is installed in the second accommodating cavity and adopts a liquid cooling mode to dissipate heat for the alternating current charging device. The liquid cooling method is adopted to improve the heat dissipation capacity so as to meet the high-heating-value heat dissipation requirement of high-power quick-charging equipment, and the vertical partition plate is used for realizing electric isolation prevention and improving the safety of the equipment.

Description

High-power liquid-cooled super quick charging equipment
Technical Field
The invention relates to the technical field of heat dissipation equipment of charging facilities, in particular to high-power liquid-cooling super rapid charging equipment.
Background
The charging facility is a device for energy supply of the electric automobile, and the charging performance of the charging facility is related to the service life and the charging time of the battery pack. In order to realize quick, efficient, safe and reasonable electric quantity replenishment of a power battery, the output power of a charging facility is expected to be increased; the working environment temperature of a common charging facility is-20 ℃ to +50 ℃, the charging current is not more than 250A, the efficiency and the use safety of the charging facility can be guaranteed under the condition, the charging efficiency of the charging facility is generally in the range of 90-95%, namely, about 8% of electric energy loss exists when the charging facility is used, and the lost electric energy is converted into heat to be emitted.
At present, the problems of the high-power quick charging facility are as follows:
1. the heat dissipation demand is great, for example 600 KW's charging facility, if charge efficiency is 90%, then calorific capacity when its full load uses is 60KW, and this is less than 1m to an occupation of land 2 The heat generation density is very large; particularly, in summer, the temperature rise of equipment is aggravated by higher temperature and sunshine, the required heat dissipation requirement is further increased, and the traditional air cooling mode cannot meet the heat dissipation requirement;
2. when refrigerant refrigeration cycle is adopted for heat dissipation, as the evaporation temperature of the refrigerant is lower, condensed water is easy to generate, more condensed water is generated in rainy season with higher humidity, and electrical safety accidents are easy to cause.
Disclosure of Invention
In order to solve the technical problem, the invention provides high-power liquid-cooling super rapid charging equipment which comprises a shell, a control box, an alternating current charging device and a cooling device, wherein the shell is provided with a first end and a second end;
the shell is in a vertical cabinet type, a vertical clapboard is arranged in the shell, and the vertical clapboard divides the interior of the shell into a first accommodating cavity and a second accommodating cavity;
the control box is fixed on the shell and used for controlling the alternating current charging device to carry out quick charging and controlling the cooling device to carry out cooling on the alternating current charging device;
the alternating current charging device is arranged in the first accommodating cavity and is used for charging the electric automobile;
the cooling device is installed in the second accommodating cavity and adopts a liquid cooling mode to dissipate heat for the alternating current charging device.
Optionally, the cooling device includes a refrigeration cycle subsystem and a cooling liquid cycle subsystem;
the refrigeration cycle subsystem comprises a compressor, a condenser, an expansion valve and a primary side of a heat exchanger which are in cycle connection through refrigerant pipes in sequence to form primary side refrigerant cycle;
the cooling liquid circulation subsystem comprises a circulating pump, a secondary side of a heat exchanger and a cooler which are connected in sequence in a pipeline circulation mode, and secondary side cooling liquid circulation is formed.
Optionally, the primary-side refrigerant cycle and the secondary-side refrigerant cycle of the heat exchanger are connected in a counter-flow manner.
Optionally, the cooler is provided with a cooling fan, and the vertical partition plate is provided with a heat insulation layer.
Optionally, a second cooler is connected to the secondary side cooling liquid circulation through a splitter, and the second cooler and the cooler are connected in parallel; the second cooler is disposed at a key heat generating portion of the ac charging device.
Optionally, the casing is provided with an air inlet and an air outlet, the air outlet is provided with a condenser and an exhaust fan, and the air inlet is provided with a filter screen.
Optionally, the ac charging device includes a power output port and a power input port, the power output port is connected to a charging gun, and the power input port is used for connecting to a mains supply;
the utility model discloses a charging gun, including casing, rifle seat, hanging rifle seat, charging gun, casing, hanging rifle seat, charging gun, and charging gun.
Optionally, the control box is provided with a touch display screen, a card reader, an emergency button and a control assembly; the touch display screen, the card reader and the emergency button are positioned on the outer surface of the control box;
the touch display screen is used for functional operation and running data display;
the card reader is used for sensing and reading a user card;
the emergency button is used for stopping operation in emergency;
the control assembly is respectively connected with the touch display screen, the card reader and the emergency button, and the control assembly is used for controlling the alternating current charging device to implement quick charging and controlling the cooling device to cool the alternating current charging device.
Optionally, the control component includes a data collector, a microprocessor and a communication module;
the data acquisition unit is connected with a temperature sensor, a pressure sensor, a voltage measuring instrument and a current measuring instrument; the temperature sensors are multiple and are respectively used for measuring the ambient temperature, the internal temperature of the first accommodating cavity and the temperature of the cooling liquid; the pressure sensor is used for measuring the pressure of the cooling liquid; the voltage measuring instrument and the current measuring instrument are respectively used for measuring the voltage and the current of the alternating current charging device;
the microprocessor is connected with the data collector and the communication module respectively, a heat load calculation model is arranged in the microprocessor, and the microprocessor is used for processing and analyzing the collected data provided by the data collector, generating a control instruction and coordinately controlling the operation of the alternating current charging device and the cooling device; the heat load calculation model is used for calculating the heat load in the first accommodating cavity in real time and determining the running state of the cooling device according to the heat load;
the communication module is used for connecting a network to carry out data interaction.
Optionally, the microprocessor is connected with a GPS positioning module, and the GPS positioning module is used to determine a geographical location of the device;
the microprocessor inquires a network through the communication module according to the geographic position to determine the local altitude;
the microprocessor is internally provided with a parameter correction model which corrects the equipment control parameters according to the altitude and carries out coordination control on the alternating current charging device and the cooling device according to the corrected parameters.
According to the high-power liquid-cooling super rapid charging equipment, the cooling device is used for radiating heat for the alternating current charging device in a liquid-cooling mode, so that the heat radiating capacity is improved, and the high-heat radiating requirement of the high-power rapid charging equipment is met; through setting up vertical baffle and keeping the chamber for first holding the chamber and the second with the equipment internal partitioning, be used for holding exchange charging device and cooling device respectively, realize keeping apart exchange charging device and cooling device's physics to avoid the comdenstion water that cooling device produced to cause electrical safety accident, improved the security of equipment.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a high-power liquid-cooled super rapid charger according to an embodiment of the present invention;
FIG. 2 is a schematic front view of an embodiment of the high power liquid-cooled super rapid charger of the present invention;
FIG. 3 is a schematic diagram of the back side of an embodiment of the high power liquid-cooled super rapid charger of the present invention;
FIG. 4 is a schematic view of a cooling device used in an embodiment of the high-power liquid-cooled super rapid charger of the present invention;
FIG. 5 is a schematic diagram of a control assembly installed in a control box of an embodiment of the high-power liquid-cooled super rapid charging device of the present invention;
fig. 6 is a schematic product diagram of an embodiment of the high-power liquid-cooled super rapid charging apparatus according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1-3, an embodiment of the present invention provides a high-power liquid-cooled super rapid charging apparatus, which includes a housing 1, a control box 2, an ac charging device 3, and a cooling device 4;
the shell 1 is in a vertical cabinet type, a vertical clapboard 11 is arranged in the shell 1, and the vertical clapboard 11 divides the interior of the shell 1 into a first accommodating cavity and a second accommodating cavity; a waterproof cover 5 is arranged at the top of the shell 1, and fig. 1 is a top view of the shell with the waterproof cover 5 removed;
the control box 2 is fixed on the shell 1, and the control box 2 is used for controlling the alternating current charging device 3 to implement quick charging and controlling the cooling device 4 to implement cooling on the alternating current charging device 3;
the alternating current charging device 3 is arranged in the first accommodating cavity, and the alternating current charging device 3 is used for charging the electric automobile;
the cooling device 4 is installed in the second accommodating cavity, and the cooling device 4 conducts heat dissipation on the alternating current charging device 3 in a liquid cooling mode.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the cooling device is used for radiating heat for the alternating current charging device in a liquid cooling mode, so that the heat radiating capacity is improved, and the high-heating-value heat radiating requirement of high-power quick charging equipment is met; the interior of the equipment is divided into a first accommodating cavity and a second accommodating cavity by arranging the vertical partition plate, and the first accommodating cavity and the second accommodating cavity are respectively used for accommodating the alternating current charging device and the cooling device, so that the alternating current charging device and the cooling device are physically separated, an electrical safety accident caused by condensed water generated by the cooling device is avoided, and the safety of the equipment is improved; the waterproof cover is arranged on the top of the shell, so that water can be prevented from entering the equipment to influence the electrical safety of the equipment in rainy and snowy weather; if a water source with lower temperature exists in the use occasion, the cooling device can be a water pump and a heat exchanger which are connected through a pipeline, the water source is connected through a water pipe, and water with lower temperature in the water source is introduced into the heat exchanger by the water pump to dissipate heat of the alternating current charging device.
In one embodiment, as shown in fig. 4, the cooling device 4 includes a refrigeration cycle subsystem and a cooling liquid cycle subsystem;
the refrigeration cycle subsystem comprises a compressor 41, a condenser 42, an expansion valve 43 and a primary side of a heat exchanger 44 which are connected in sequence by adopting refrigerant pipe circulation to form primary side refrigerant circulation;
the cooling liquid circulation subsystem comprises a circulating pump 45, a secondary side of a heat exchanger 44 and a cooler 46 which are connected in sequence in a pipeline circulation manner to form secondary side cooling liquid circulation;
the vertical partition plate 11 is provided with an air supply outlet, the cooler 46 is installed on the side surface, facing the second accommodating cavity, of the air supply outlet of the vertical partition plate 11, and supplies air to the first accommodating cavity through the air supply outlet for cooling; or the cooler 46 is installed on the side of the vertical partition 11 facing the first accommodating cavity after being subjected to a sealing test under high pressure;
the primary side refrigerant cycle and the secondary side refrigerant cycle of the heat exchanger 44 are connected in a counter-flow manner;
the cooler 46 is provided with a cooling fan 49, and the vertical partition 11 is provided with a heat insulating layer.
The working principle and the beneficial effects of the technical scheme are as follows: this scheme adopts the two-stage circulation mode to cooling device: the primary side refrigerant circulation and the secondary side cooling liquid circulation are connected in a countercurrent mode, and heat exchange efficiency can be improved; the cooler with the secondary side cooling liquid circulation is adopted for radiating heat of the alternating current charging device, so that on one hand, the energy consumption of the cooling device is reduced by the cooling liquid circulation, on the other hand, the risk increase caused by the fact that the cooling liquid circulation is directly used for the alternating current charging device and a large amount of condensed water is generated due to too low temperature is avoided, and the temperature value of the cooler is conveniently controlled through the buffering of the secondary side cooling liquid circulation so as to avoid the generation of the condensed water by the cooler; the cooler can be arranged in the first accommodating cavity or the second accommodating cavity, the risk caused by the outflow of cooling liquid due to the damage of the cooler can be avoided by arranging the cooler in the second accommodating cavity, and the cooler is required to be subjected to a sealing test under high pressure in advance to reduce the risk by arranging the cooler in the first accommodating cavity; the cooler configuration cooling blower can be with higher speed carry cold air to the first chamber that holds that installs alternating current charging device, and vertical baffle establishes the heat preservation and can prevent that the second from holding the heat in chamber and reverse spreading into first chamber that holds.
In one embodiment, as shown in fig. 4, a second cooler 48 is connected to the secondary side cooling fluid circulation through a flow divider 47, and the second cooler 48 is connected in parallel with the cooler 46; the second cooler 48 is disposed at a key heat generating portion of the ac charging device 3, and there may be a plurality of the second coolers 48;
for example, the ac charging device 3 includes a high-voltage wire harness, the power outlet 31 is connected to a charging gun, and the charging gun is connected to the power outlet 31 by a dc output cable (i.e., a gun line) with a large current; the second cooler 48 may be disposed on a pipe sleeve of the high-voltage wire harness and/or the dc output cable, that is, the pipe sleeve with a thermal insulation function may be disposed outside the high-voltage wire harness and/or the dc output cable, the second cooler 48 is disposed inside the pipe sleeve, the second cooler 48 may be in a spiral cooling pipe manner surrounding the high-voltage wire harness and/or the dc output cable, the pipe sleeve has a certain flexibility, a surface layer of the pipe sleeve may be a metal corrugated pipe, and the second cooler 48 disposed inside the pipe sleeve is configured to cool the high-voltage wire harness and/or the dc output cable, so as to prevent the high-voltage wire harness and/or the dc output cable from overheating.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the plurality of coolers connected in parallel are arranged, the flow of the cooling liquid is distributed through the shunt, point-to-point cooling can be performed on key heating parts (such as a high-voltage wire harness, a direct-current output cable, a battery, a microprocessor and the like) of the alternating-current charging device in the first accommodating cavity according to the heat dissipation requirements of the key heating parts, on one hand, heat is taken away by the cooling liquid before being diffused to the whole first accommodating cavity, and the heat exchange temperature difference and the heat exchange efficiency can be improved; on the other hand, the working temperature of the counterweight heating part can be better controlled, and the service life of components at the parts is prolonged.
In one embodiment, as shown in fig. 3 and 4, the housing 1 is provided with an air inlet 12 and an air outlet 13, a protective net may be disposed on outer sides of the air inlet 12 and the air outlet 13, the air outlet 13 is provided with a condenser 42 and an exhaust fan 40, and the air inlet 12 is provided with a filter screen.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the condenser is arranged at the air outlet of the shell, the air is sucked in by the air inlet through the exhaust fan and is exhausted by the air outlet through the condenser, the condenser is cooled by a refrigerant, the refrigerant is changed from a gas state to a liquid state in the condenser under high pressure, and the air is exhausted immediately after absorbing the heat of the refrigerant in the condenser, so that the temperature in the second accommodating cavity is reduced; establish the filter screen at the air intake and can improve the air cleanliness factor that gets into the second and hold the intracavity, slow down the condenser surface adhesion dust condition, ensure the heat exchange efficiency of condenser as far as possible.
In one embodiment, as shown in fig. 1 to 3 and fig. 6, the ac charging device 3 includes a power output port 31 and a power input port 32, the power input port 32 may be disposed at the bottom, the charging gun is connected to the power output port 31, and the power input port 32 is used for connecting to the commercial power; aiming at the condition that the electric automobile mostly adopts direct current, a rectifier can be configured in the alternating current charging device 3 and then the alternating current charging device is connected with the power output port 31, so that the power output port 31 outputs the direct current to the electric automobile;
a gun hanging seat 10 is fixedly mounted on the outer side surface of the shell 1, and the gun hanging seat 10 is used for placing a charging gun.
The working principle and the beneficial effects of the technical scheme are as follows: this scheme is through hanging the rifle seat at the lateral surface fixed mounting of casing for place the rifle that charges, firstly take of the rifle that charges of being convenient for, secondly avoid the rifle that charges to bring the potential safety hazard in disorder, thirdly avoid the rifle that charges and ground contact delay ageing.
In one embodiment, as shown in fig. 2, the control box 2 is equipped with a touch display screen 21, a card reader 22, an emergency button 23 and control components; the touch display screen 21, the card reader 22 and the emergency button 23 are positioned on the outer surface of the control box 2;
the touch display screen 21 is used for functional operation and running data display;
the card reader 22 is used for sensing and reading a user card;
the emergency button 23 is used for stopping operation in emergency;
the control component is respectively connected with the touch display screen 21, the card reader 22 and the emergency button 23, and the control component is used for controlling the alternating current charging device 3 to implement quick charging and controlling the cooling device 4 to implement cooling on the alternating current charging device 3.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the touch display screen is arranged to perform function operation and running data display, so that visual management of equipment maintenance and use is realized; the card reader is arranged to sense and read the user card, so that a card holder can use and pay conveniently; the emergency button is arranged so that forced shutdown can be carried out in emergency, and accidental risks are prevented or reduced; the control assembly can be installed inside the control box to strengthen the protection, improve personnel and equipment safety, improve control assembly's life.
In one embodiment, as shown in fig. 5, the control assembly includes a data collector, a microprocessor, and a communication module;
the data acquisition unit is connected with a temperature sensor, a pressure sensor, a voltage measuring instrument and a current measuring instrument; the temperature sensors are multiple and are respectively used for measuring the ambient temperature, the internal temperature of the first accommodating cavity and the temperature of the cooling liquid; the pressure sensor is used for measuring the pressure intensity of the cooling liquid; the voltage measuring instrument and the current measuring instrument are respectively used for measuring the voltage and the current of the alternating current charging device;
the microprocessor is connected with the data collector and the communication module respectively, a heat load calculation model is arranged in the microprocessor, and the microprocessor is used for processing and analyzing the collected data provided by the data collector, generating a control instruction and coordinately controlling the operation of the alternating current charging device and the cooling device; the heat load calculation model is used for calculating the heat load in the first accommodating cavity in real time and determining the running state of the cooling device according to the heat load;
the communication module is used for connecting a network to carry out data interaction.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the temperature sensor, the pressure sensor, the voltage measuring instrument and the current measuring instrument which are connected through the data acquisition unit adopt various data such as environment, an alternating current charging device, a cooling device and the like, and are processed and analyzed through the microprocessor to implement coordination control on the alternating current charging device and the cooling device; the microprocessor is internally provided with a heat load calculation model, calculates the heat load amount in the first accommodating cavity in real time, determines the operation state of the cooling device according to the heat load amount, improves the regulation and control accuracy, enables the operation of the cooling device to be adaptive to the heat dissipation requirement, can prevent operation faults or potential safety hazards caused by insufficient heat dissipation and temperature rise, can prevent excessive regulation and control, enables the operation state of the cooling device to swing constantly, reduces unbalanced operation, reduces the fault rate and prolongs the service life of the cooling device; the communication module is used for connecting a network to perform data interaction, remote monitoring and management can be performed on the equipment, field maintenance is reduced, and maintenance cost is reduced.
In one embodiment, as shown in FIG. 5, the microprocessor is connected to a GPS location module for determining the geographic location of use of the device;
the microprocessor inquires a network through the communication module according to the geographic position to determine the local altitude;
the microprocessor is internally provided with a parameter correction model which corrects the equipment control parameters according to the altitude and carries out coordination control on the alternating current charging device and the cooling device according to the corrected parameters.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the GPS positioning module is arranged to automatically determine the geographical position used by the equipment, and the altitude data is searched and inquired through the network, so that the trouble of manual determination or omission and error of manual operation are reduced; on the basis, the equipment control parameters are corrected according to the altitude by matching with a parameter correction model built in the microprocessor, and then the equipment control parameters are used for performing coordination control on the alternating current charging device and the cooling device, so that the control precision of the operation of the equipment can be further improved, the control deviation of the equipment caused by different use places and altitude differences is prevented, and the operation efficiency of the equipment is prevented from being influenced or the service life of the equipment is shortened by automatic correction.
In one embodiment, the microprocessor is connected with a high-definition camera and a memory, and the high-definition camera is used for regularly shooting a color image of the high-voltage wire harness; the memory stores an aging color chart of the scrapped high-voltage wire harness;
the microprocessor periodically adopts the following formula to evaluate the aging degree of the high-voltage wire harness through image processing and identification:
Figure BDA0003642236550000091
in the above formula, S represents the similarity between the color image of the high-voltage wire harness and the aged color image of the scrapped high-voltage wire harness; (i, j) pixel coordinates representing a color image of the high voltage harness; mu.s (i,j) A chromaticity value at a pixel coordinate point (i, j) of a color image representing the high-voltage wire harness;
Figure BDA0003642236550000092
representing the average chroma value of each pixel point of the aging color chart of the scrapped high-voltage wire harness; gamma ray (i,j) A luminance value at a pixel coordinate point (i, j) of a color image representing the high-voltage wire harness;
Figure BDA0003642236550000093
representing the average brightness value of each pixel point of the aging color chart of the scrapped high-voltage wire harness; tau is (i,j) A spectral value at a pixel coordinate point (i, j) of a color image representing the high voltage harness;
Figure BDA0003642236550000094
representing the average spectral value of each pixel point of the aging color chart of the scrapped high-voltage wire harness;
if the calculated similarity is higher than a preset aging threshold value, the high-voltage wire harness is seriously aged, the microprocessor sends prompt information, the prompt information can be one or a plurality of combinations of character information displayed by a touch display screen, light prompt sent by a working indicator lamp or sound prompt sent by a buzzer, and the prompt information can be remotely sent through network connection, so that maintenance personnel can take measures in time to eliminate potential safety hazards.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the high-voltage wire harness image is shot and compared with the pre-stored scrapped high-voltage wire harness image, the reciprocal of each contrast of the high-voltage wire harness image and the scrapped high-voltage wire harness image is used as the similarity, and the evaluation data of the similarity on the aging degree of the high-voltage wire harness is used, so that the service life of the high-voltage wire harness is monitored and quantitatively analyzed, maintenance personnel can be reminded to take measures to eliminate potential safety hazards in time, and risks are reduced; the similarity calculation formula that this scheme adopted is simple, and maneuverability is strong, and the data calculated amount is little, adopts the periodic evaluation mode can further reduce the control energy consumption, and in the in-service use can the equipment use occasion, rationally confirms evaluation time or cycle to get rid of the risk that the high-voltage wire harness is ageing to bring.
The high-power liquid-cooling super rapid charging equipment can be manufactured into a product as shown in fig. 6, one equipment can be provided with a plurality of gun hanging seats and charging guns, and an illuminating lamp can be arranged on a shell, so that the high-power liquid-cooling super rapid charging equipment is convenient to use at night or in places with weak light; the outer surface of the control box can also be provided with a working indicator light, the working indicator light is connected with the control assembly and used for indicating the working state of the equipment, the air inlet 12 and the air outlet 13 can be positioned at the same side of the product, as shown in fig. 3, the air inlet 12 and the air outlet 13 are both positioned at the back of the product, and the air inlet 12 is positioned below the air outlet 13; of course, the air inlet and the air outlet may also be located on different sides of the product, as shown in fig. 6, the air inlet 12 is located at the lower end of the side surface of the product, and the air outlet may still be selectively located on the back of the product; the gun hanging seat 10 can be of a built-in insertion type, a lifting lug 6 can be arranged on the waterproof cover 5 at the top of the shell 1, and the lifting lug 6 can be of a hook shape or an annular shape and is used for hoisting by a crane when equipment is loaded and unloaded or installed, so that the equipment is conveniently loaded and unloaded or positioned.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. A high-power liquid-cooled super quick charging device is characterized by comprising a shell, a control box, an alternating current charging device and a cooling device;
the shell is in a vertical cabinet type, a vertical clapboard is arranged in the shell, and the vertical clapboard divides the interior of the shell into a first accommodating cavity and a second accommodating cavity;
the control box is fixed on the shell and used for controlling the alternating current charging device to carry out quick charging and controlling the cooling device to carry out cooling on the alternating current charging device;
the alternating current charging device is arranged in the first accommodating cavity and is used for charging the electric automobile;
the cooling device is installed in the second accommodating cavity and adopts a liquid cooling mode to dissipate heat for the alternating current charging device.
2. The high power liquid-cooled super rapid charging device according to claim 1, wherein the cooling device comprises a refrigeration cycle subsystem and a cooling liquid cycle subsystem;
the refrigeration cycle subsystem comprises a compressor, a condenser, an expansion valve and a primary side of a heat exchanger which are connected in sequence by adopting refrigerant pipe circulation to form primary side refrigerant circulation;
the cooling liquid circulation subsystem comprises a circulating pump, a secondary side of a heat exchanger and a cooler which are connected in sequence in a pipeline circulation mode, and secondary side cooling liquid circulation is formed.
3. The high power liquid-cooled super rapid charging device according to claim 2, wherein the primary side refrigerant cycle and the secondary side refrigerant cycle of the heat exchanger are connected in a counter-flow manner.
4. The high power liquid cooled super rapid charger according to claim 2, wherein the cooler is configured with a cooling blower, and the vertical partition is provided with a thermal insulation layer.
5. The high-power liquid-cooled super rapid charging equipment according to claim 2, wherein a second cooler is connected in the secondary side cooling liquid circulation through a splitter, and the second cooler and the cooler are connected in parallel; the second cooler is disposed at a key heat generating portion of the ac charging device.
6. The high power liquid cooled super fast charger of claim 2, wherein said housing has an air inlet and an air outlet, said air outlet having a condenser and an exhaust fan, said air inlet having a filter screen.
7. The high-power liquid-cooled super rapid charging equipment according to claim 1, wherein the alternating current charging device comprises a power output port and a power input port, the power output port is connected with a charging gun, and the power input port is used for being connected with a mains supply;
the utility model discloses a charging gun, including casing, rifle seat, hanging rifle seat, charging gun, casing, hanging rifle seat, charging gun, and charging gun.
8. The high-power liquid-cooled super rapid charging equipment according to any one of claims 1 to 7, wherein the control box is provided with a touch display screen, a card reader, an emergency button and a control assembly; the touch display screen, the card reader and the emergency button are positioned on the outer surface of the control box;
the touch display screen is used for functional operation and running data display;
the card reader is used for sensing and reading a user card;
the emergency button is used for stopping operation in emergency;
the control assembly is respectively connected with the touch display screen, the card reader and the emergency button, and the control assembly is used for controlling the alternating current charging device to implement quick charging and controlling the cooling device to cool the alternating current charging device.
9. The high power liquid-cooled super rapid charger device according to claim 8, wherein the control assembly comprises a data collector, a microprocessor and a communication module;
the data acquisition unit is connected with a temperature sensor, a pressure sensor, a voltage measuring instrument and a current measuring instrument; the temperature sensors are multiple and are respectively used for measuring the ambient temperature, the internal temperature of the first accommodating cavity and the temperature of the cooling liquid; the pressure sensor is used for measuring the pressure of the cooling liquid; the voltage measuring instrument and the current measuring instrument are respectively used for measuring the voltage and the current of the alternating current charging device;
the microprocessor is connected with the data collector and the communication module respectively, a heat load calculation model is arranged in the microprocessor, and the microprocessor is used for processing and analyzing the collected data provided by the data collector, generating a control instruction and coordinately controlling the operation of the alternating current charging device and the cooling device; the heat load calculation model is used for calculating the heat load in the first accommodating cavity in real time and determining the running state of the cooling device according to the heat load;
the communication module is used for connecting a network to carry out data interaction.
10. The high power liquid-cooled super rapid charger according to claim 9, wherein the microprocessor is connected with a GPS positioning module, and the GPS positioning module is used for determining the geographical location of the device;
the microprocessor inquires a network through the communication module according to the geographic position to determine the local altitude;
the microprocessor is internally provided with a parameter correction model which corrects the equipment control parameters according to the altitude and carries out coordination control on the alternating current charging device and the cooling device according to the corrected parameters.
CN202210522440.8A 2022-05-13 2022-05-13 High-power liquid-cooled super quick charging equipment Active CN114801808B (en)

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