CN116092743A - High-power charging and cooling device and charging and cooling method - Google Patents

High-power charging and cooling device and charging and cooling method Download PDF

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Publication number
CN116092743A
CN116092743A CN202310328938.5A CN202310328938A CN116092743A CN 116092743 A CN116092743 A CN 116092743A CN 202310328938 A CN202310328938 A CN 202310328938A CN 116092743 A CN116092743 A CN 116092743A
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CN
China
Prior art keywords
cooling
liquid
liquid outlet
cooling medium
charging gun
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Pending
Application number
CN202310328938.5A
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Chinese (zh)
Inventor
邓笑琛
刘曦
卢刚
张扬阳
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Xi'an Tiantai Electronics Co ltd
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Xi'an Tiantai Electronics Co ltd
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Priority to CN202310328938.5A priority Critical patent/CN116092743A/en
Publication of CN116092743A publication Critical patent/CN116092743A/en
Pending legal-status Critical Current

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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
    • H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
    • H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
    • H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
    • 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

Abstract

The invention provides a high-power charging and cooling device and a charging and cooling method, wherein the high-power charging and cooling device comprises an expansion kettle, a liquid outlet pipeline, a liquid return pipeline, a circulating pump and a heat dissipation mechanism; the expansion kettle is used for containing cooling medium; the first end of the liquid outlet pipeline is communicated with the liquid outlet of the expansion kettle, and the second end of the liquid outlet pipeline is communicated with the liquid inlet of the charging gun cable cooling pipe so as to convey cooling medium to the charging gun cable cooling pipe; the first end of the liquid return pipeline is communicated with a liquid return port of the expansion kettle, and the second end of the liquid return pipeline is communicated with a liquid outlet of a cable cooling pipe of the charging gun so as to return the cooling medium subjected to cooling heat exchange to the expansion kettle; the circulating pump is arranged on the liquid outlet of the expansion kettle; the heat dissipation mechanism is arranged on the liquid return pipeline and used for dissipating heat of the cooling medium returned to the expansion kettle. The problem of among the prior art charge connecting system carry out high-power when charging that the heat that the cable produced is too big and lead to charging efficiency to become low, harm charging device and arouse the incident is solved.

Description

High-power charging and cooling device and charging and cooling method
Technical Field
The invention relates to the field of charging facilities, in particular to a high-power charging and cooling device and a charging and cooling method.
Background
The sales and the holding capacity of the new energy automobile continuously increase at a high speed under the drive of the market, but the long charging time is always a pain point of the using link of the new energy automobile user. The high-power charging connection system can be used for conveying charging current above 550A to shorten the charging time, however, after the charging current is increased, the heating value of the cable can be rapidly increased to lower the charging efficiency, meanwhile, the charging device can be damaged due to the fact that the temperature of the charging connection system is too high, and safety accidents can be caused in severe cases. Although increasing the cross-sectional area of the conductor can reduce the heat productivity of the cable, the weight of the cable can also be increased, and the user can not normally use the cable after the weight of the cable is increased.
Disclosure of Invention
The invention mainly aims to provide a high-power charging and cooling device and a charging and cooling method, which at least solve the problems of low charging efficiency, damage to a charging device and safety accidents caused by overlarge heat generated by a cable when a charging connection system performs high-power charging in the prior art.
In order to achieve the above object, an aspect of the present invention provides a high-power charge cooling device, comprising: an expansion pot for accommodating a cooling medium; the first end of the liquid outlet pipeline is communicated with the liquid outlet of the expansion kettle, and the second end of the liquid outlet pipeline is communicated with the liquid inlet of the charging gun cable cooling pipe so as to convey cooling medium in the expansion kettle to the charging gun cable cooling pipe; the first end of the liquid return pipeline is communicated with a liquid return port of the expansion kettle, and the second end of the liquid return pipeline is communicated with a liquid outlet of the charging gun cable cooling pipe so as to return the cooling medium cooled and heat-exchanged by the charging gun cable cooling pipe to the expansion kettle; the circulating pump is arranged on the liquid outlet of the expansion kettle and is used for generating pressure to drive the cooling medium to flow in the liquid outlet pipeline, the charging gun cable cooling pipe and the liquid return pipeline; the heat dissipation mechanism is arranged on the liquid return pipeline and is used for dissipating heat of the cooling medium returned to the expansion kettle.
Further, the heat dissipation mechanism includes: the radiator is arranged on the liquid return pipeline; a fan arranged opposite to the radiator; the cooling medium after cooling and heat exchanging of the charging gun cable cooling pipe flows through the radiator to radiate heat; the fan blows air to the radiator to accelerate the radiator to radiate heat.
Further, the high-power charge cooling device further includes: the liquid temperature and pressure sensor is arranged on the liquid outlet pipeline and is used for sensing the temperature and pressure of the cooling medium conveyed to the cable cooling pipe of the charging gun; the liquid return temperature sensor is arranged on the liquid return pipeline and is used for sensing the temperature of the cooling medium after the cooling heat exchange of the cable cooling pipe of the charging gun; the liquid level sensor is arranged in the expansion kettle and is used for sensing the liquid level of the cooling medium in the expansion kettle.
Further, the high-power charge cooling device further includes: the pressure release mechanism is arranged between the liquid outlet pipeline and the liquid return pipeline and is used for communicating the liquid outlet pipeline and the liquid return pipeline, and the pressure release mechanism is used for being opened when the pressure of the cooling medium conveyed to the cable cooling pipe of the charging gun is larger than a preset value so that part of the cooling medium in the liquid outlet pipeline can be directly returned into the expansion kettle through the pressure release mechanism.
Further, the pressure release mechanism includes: one end of the pressure relief pipe is communicated with the liquid outlet pipeline, and the other end of the pressure relief pipe is communicated with the liquid return pipeline; the pressure release valve is arranged on the pressure release pipe; when the pressure of the cooling medium conveyed to the charging gun cable cooling pipe is smaller than or equal to a preset value, the pressure relief valve is closed, so that all the cooling medium in the liquid outlet pipeline is conveyed to the charging gun cable cooling pipe; when the pressure of the cooling medium conveyed to the cable cooling pipe of the charging gun is larger than a preset value, the pressure relief valve is opened so that part of the cooling medium in the liquid outlet pipeline directly returns to the expansion kettle through the pressure relief pipe.
Further, the high-power charge cooling device further includes: the cooling controller is connected with the circulating pump, the heat dissipation mechanism, the liquid outlet temperature and pressure sensor, the liquid return temperature sensor and the liquid level sensor; the communication module is arranged on the cooling controller, and the cooling controller is connected with the charging pile controller through the communication module for communication. The cooling controller is used for controlling the running states of the circulating pump and the heat dissipation mechanism according to the sensing data of the liquid temperature and pressure sensor, the liquid return temperature sensor and the liquid level sensor.
Further, the high-power charge cooling device further includes: the radiator is arranged on the rear end wall of the box body; the expansion kettle is arranged at one side in the box body; the two fans are oppositely arranged in the box body along the vertical direction and are opposite to the expansion pot along the width direction of the box body; the circulating pump is arranged below the expansion kettle and is partially inserted into the expansion kettle.
Further, the high-power charge cooling device further includes: the two fluid connectors are correspondingly arranged at the second end of the liquid outlet pipeline and the second end of the liquid return pipeline; the number of the quick connectors is two, and the two quick connectors are single-inlet single-outlet or multiple-inlet multiple-outlet quick connectors respectively; the liquid inlet and the liquid outlet of the cable cooling pipe of the charging gun are correspondingly connected with the two fluid connectors through the two quick connectors. The second end of the liquid outlet pipeline and the second end of the liquid return pipeline are respectively communicated with a liquid inlet and a liquid outlet of the charging gun cable cooling pipe through fluid connectors, and the charging gun cable cooling pipe is single or multiple.
In another aspect, the present invention provides a charging cooling method, which is applied to a high-power charging cooling device, and the charging cooling method includes: conveying the cooling medium stored in the expansion kettle to a charging gun cable cooling pipe through a liquid outlet pipeline so as to cool and dissipate heat of the charging gun cable; cooling medium subjected to cooling heat exchange of the charging gun cable cooling pipe is conveyed back to the expansion kettle after being subjected to heat dissipation and cooling through the liquid return pipeline and the heat dissipation mechanism; and conveying the cooling medium which is subjected to heat dissipation and cooling in the expansion kettle to the charging gun cable cooling pipe through the liquid outlet pipeline again to form circulation.
Further, the charge cooling method further includes: monitoring the temperature and pressure of the cooling medium of the liquid outlet pipeline, the temperature of the cooling medium of the liquid return pipeline and the liquid level in the expansion kettle; when the difference between the temperature of the cooling medium of the liquid return pipeline and the temperature of the cooling medium of the liquid outlet pipeline is larger than a preset value, the heat dissipation mechanism is controlled to be started; when the pressure of the cooling medium of the liquid outlet pipeline is larger than a preset value, controlling the liquid outlet pipeline to release pressure; and alarming when the liquid level in the expansion kettle is higher than a preset value.
The invention provides a high-power charging and cooling device and a charging and cooling method, wherein the high-power charging and cooling device adopting the technical scheme of the invention comprises an expansion kettle, a liquid outlet pipeline, a liquid return pipeline, a circulating pump and a heat dissipation mechanism; the expansion kettle is used for containing cooling medium; the first end of the liquid outlet pipeline is communicated with the liquid outlet of the expansion kettle, and the second end of the liquid outlet pipeline is communicated with the liquid inlet of the charging gun cable cooling pipe so as to convey cooling medium in the expansion kettle to the charging gun cable cooling pipe; the first end of the liquid return pipeline is communicated with a liquid return port of the expansion kettle, and the second end of the liquid return pipeline is communicated with a liquid outlet of the charging gun cable cooling pipe so as to return the cooling medium cooled and heat exchanged by the charging gun cable cooling pipe to the expansion kettle; the circulating pump is inserted and arranged on the liquid outlet of the expansion kettle, and is used for generating pressure to drive the cooling medium to flow in the liquid outlet pipeline, the charging gun cable cooling pipe and the liquid return pipeline; the heat dissipation mechanism is arranged on the liquid return pipeline and is used for dissipating heat of the cooling medium returned to the expansion kettle. Therefore, when the charging connection system performs high-power charging, heat generated by the cable is effectively absorbed and radiated, and the problems that in the prior art, the charging efficiency is low, a charging device is damaged and safety accidents are caused due to overlarge heat generated by the cable when the charging connection system performs high-power charging are solved.
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 invention. In the drawings:
FIG. 1 is a block diagram of an alternative high power charge cooling device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an alternative high power charge cooling device according to an embodiment of the invention;
FIG. 3 is a block diagram of an alternative high power charge cooling device according to an embodiment of the invention;
FIG. 4 is a block diagram of an alternative pressure relief mechanism for a high power charge cooling device according to an embodiment of the present invention;
FIG. 5 is a block diagram of a structural connection of a cooling controller of an alternative high power charge cooling device according to an embodiment of the present invention;
FIG. 6 is a schematic rear view of an alternative high power charge cooling device according to an embodiment of the invention;
FIG. 7 is a schematic illustration of the structural connection of a quick connector of an alternative high power charge cooling device according to an embodiment of the present invention;
FIG. 8 is a schematic structural connection of a quick connector of an alternative high power charge cooling device according to an embodiment of the present invention;
fig. 9 is a schematic structural connection diagram of a quick connector of another alternative high-power charging and cooling device according to an embodiment of the invention.
Wherein the above figures include the following reference numerals:
1. an expansion pot; 2. a liquid outlet pipeline; 3. a liquid return pipeline; 4. a circulation pump; 5. a heat dissipation mechanism; 5-1, a radiator; 5-2, a fan; 6. a liquid temperature and pressure sensor; 7. a liquid return temperature sensor; 8. a liquid level sensor; 9. a pressure release mechanism; 9-1, a pressure relief pipe; 9-2, a pressure release valve; 10. a cooling controller; 10-1, a communication module; 11. a case; 11-1, screw holes; 11-2, mounting plates; 12. a fluid connector; 13. a quick connector; 14. and a charging gun cable cooling tube.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
According to the embodiment of the invention, as shown in fig. 1, the high-power charging and cooling device comprises an expansion kettle 1, a liquid outlet pipeline 2, a liquid return pipeline 3, a circulating pump 4 and a heat dissipation mechanism 5; the expansion pot 1 is used for containing a cooling medium; the first end of the liquid outlet pipeline 2 is communicated with the liquid outlet of the expansion kettle 1, and the second end of the liquid outlet pipeline 2 is communicated with the liquid inlet of the charging gun cable cooling pipe 14 so as to convey the cooling medium in the expansion kettle 1 to the charging gun cable cooling pipe 14; the first end of the liquid return pipeline 3 is communicated with a liquid return port of the expansion kettle 1, and the second end of the liquid return pipeline 3 is communicated with a liquid outlet of the charging gun cable cooling pipe 14 so as to return the cooling medium cooled and heat-exchanged by the charging gun cable cooling pipe 14 to the expansion kettle 1; the circulating pump 4 is arranged on the liquid outlet of the expansion kettle 1, and the circulating pump 4 is used for generating pressure to drive the cooling medium to flow in the liquid outlet pipeline 2, the charging gun cable cooling pipe 14 and the liquid return pipeline 3; the heat dissipation mechanism 5 is arranged on the liquid return pipeline 3, and the heat dissipation mechanism 5 is used for dissipating heat of the cooling medium returned to the expansion kettle 1. Therefore, when the charging connection system performs high-power charging, heat generated by the cable is effectively absorbed and radiated, and the problems that in the prior art, the charging efficiency is low, a charging device is damaged and safety accidents are caused due to overlarge heat generated by the cable when the charging connection system performs high-power charging are solved.
In practice, as shown in fig. 1 and 2, the heat dissipation mechanism 5 includes a heat sink 5-1 and a fan 5-2; the radiator 5-1 is arranged on the liquid return pipeline 3, and after cooling medium cools and exchanges heat with the charging gun cable cooling pipe 14, the cooling medium flows into the liquid return pipeline 3 from a liquid outlet of the charging gun cable cooling pipe 14 and then flows through the radiator 5-1 to dissipate heat; the fan 5-2 is disposed opposite to the radiator 5-1, and the fan 5-2 blows air to the radiator 5-1 to accelerate heat dissipation of the radiator 5-1 while the cooling medium flows through the radiator 5-1. The heat dissipation mechanism 5 can absorb heat of the cooling medium cooled and heat exchanged by the charging gun cable cooling tube 14 and discharge the heat, and continuous cooling and heat exchange of the cooling medium to the charging gun cable cooling tube 14 are realized.
Preferably, the radiator 5-1 is an aluminum alloy brazing radiator, and the inner surface of the radiator 5-1 is corrosion-resistant by adopting 6 series aluminum alloy; the fan 5-2 is driven by the DC brushless motor and is provided with PWM control, so that the service life can be prolonged, the working noise can be reduced, and the energy consumption can be reduced.
Further, the high-power charging and cooling device also comprises a liquid temperature and pressure sensor 6, a liquid return temperature sensor 7 and a liquid level sensor 8; the liquid temperature and pressure sensor 6 is arranged on the liquid outlet pipeline 2, and the liquid temperature and pressure sensor 6 is used for sensing the temperature and pressure of the cooling medium conveyed to the charging gun cable cooling pipe 14; the liquid return temperature sensor 7 is arranged on the liquid return pipeline 3, and the liquid return temperature sensor 7 is used for sensing the temperature of the cooling medium cooled and heat-exchanged by the charging gun cable cooling pipe 14; the liquid level sensor 8 is arranged in the expansion kettle 1, and the liquid level sensor 8 is used for sensing the liquid level of the cooling medium in the expansion kettle 1. The arrangement of the liquid temperature and pressure sensor 6, the liquid return temperature sensor 7 and the liquid level sensor 8 can sense the cooling medium in real time, so that each execution part can adjust the working state according to the sensing data.
Further, the high-power charging and cooling device also comprises a pressure relief mechanism 9, wherein the pressure relief mechanism 9 is arranged between the liquid outlet pipeline 2 and the liquid return pipeline 3 and is used for communicating the liquid outlet pipeline 2 with the liquid return pipeline 3; as shown in fig. 1, the pressure release mechanism 9 may have one end disposed on the liquid outlet pipeline 2 and the other end disposed on the liquid return pipeline 3 connecting the charging gun and the heat dissipation mechanism 5; as shown in fig. 3, the pressure release mechanism 9 may also have one end disposed on the liquid outlet pipe 2 and the other end disposed on the liquid return pipe 3 connecting the expansion kettle 1 and the heat dissipation mechanism 5; when the pressure of the cooling medium conveyed to the charging gun cable cooling pipe 14 is larger than a preset value, the pressure release mechanism 9 is opened, and part of the cooling medium in the liquid outlet pipeline 2 can be directly returned into the expansion kettle 1 through the pressure release mechanism 9.
Specifically, as shown in fig. 4, the pressure release mechanism 9 includes a pressure release pipe 9-1 and a pressure release valve 9-2; one end of the pressure relief pipe 9-1 is communicated with the liquid outlet pipeline 2, and the other end of the pressure relief pipe 9-1 is communicated with the liquid return pipeline 3; the pressure release valve 9-2 is arranged on the pressure release pipe 9-1; when the pressure of the cooling medium conveyed to the charging gun cable cooling pipe 14 is smaller than or equal to a preset value, the pressure release valve 9-2 is closed, and all the cooling medium in the liquid outlet pipeline 2 is conveyed to the charging gun cable cooling pipe 14; when the pressure of the cooling medium conveyed to the charging gun cable cooling pipe 14 is larger than a preset value, the pressure relief valve 9-2 is opened, and part of the cooling medium in the liquid outlet pipeline 2 is directly returned into the expansion kettle 1 through the pressure relief pipe 9-1, so that the circulation path of part of the cooling medium is shortened, the system pressure of the device can be reduced, and accidents are avoided.
Further, as shown in fig. 2 and 5, the high-power charge cooling device further includes a cooling controller 10; the cooling controller 10 is connected with the circulating pump 4, the heat dissipation mechanism 5, the liquid outlet temperature and pressure sensor 6, the liquid return temperature sensor 7 and the liquid level sensor 8; the cooling controller 10 compares the current temperature of the cooling medium conveyed to the charging gun cable cooling tube 14 and sensed by the liquid temperature pressure sensor 6 with the set upper limit value of the liquid inlet temperature of the charging gun cable cooling tube 14, compares the temperature of the cooling medium sensed by the liquid return temperature sensor 7 after cooling and heat exchanging of the charging gun cable cooling tube 14 with the set upper limit value of the liquid outlet temperature of the charging gun cable cooling tube 14, obtains the target rotating speeds of the circulating pump 4 and the fan 5-2 by using a control algorithm according to the comparison result, and adjusts the rotating speeds of the circulating pump 4 and the fan 5-2 according to the target rotating speeds, thereby realizing real-time adjustment of heat dissipation power. The cooling controller 10 can also collect abnormal information of the high-power charging and cooling device, for example, information that the temperature of the cooling medium sensed by the liquid temperature and pressure sensor 6 and the liquid return temperature sensor 7 is continuously too high, information that the pressure of the cooling medium sensed by the liquid temperature and pressure sensor 6 is continuously too high, information that the liquid level of the cooling medium in the expansion kettle 1 sensed by the liquid level sensor 8 is too high or too low, and fault information of the circulating pump 4, the fan 5-2, the liquid temperature and pressure sensor 6, the liquid return temperature sensor 7 and the liquid level sensor 8, and through timely error reporting of the abnormal information, normal operation of the high-power charging and cooling device is ensured.
Specifically, as shown in FIG. 5, the cooling controller 10 also has a communication module 10-1; the cooling controller 10 may be connected to the charging pile controller through the communication module 10-1 to perform communication, for example, the cooling controller 10 may receive information such as "whether charging is being performed", "whether current limiting charging is performed", "whether debugging and maintenance are performed", and a temperature value collected by the charging pile sent by the charging pile controller, so as to adjust output power of the circulation pump 4 and the fan 5-2, thereby realizing energy saving. Meanwhile, the cooling controller 10 can also automatically select the working mode, such as a standby mode, an automatic mode, a sleep mode or a fault mode, according to a preset automatic control program, so that the service life of the high-power charging and cooling device is prolonged. Preferably, the communication mode of the communication module is based on MODIBUS 458/232, can communication and 0-5V or 0-10V voltage mode.
Further, as shown in fig. 2, the high-power charge cooling device further includes a case 11; the radiator 5-1 is provided on the rear end wall of the case 11; the expansion kettle 1 is arranged at one side in the box 11, the kettle opening of the expansion kettle 1 penetrates through the top plate of the box 11, the kettle opening is arranged outside the box and can be used for facilitating a user to add cooling medium, and a two-way spring pressure relief valve is arranged on the kettle cover of the expansion kettle 1, so that the two-layer pressure relief function is realized, and the pressure in the expansion kettle 1 can be effectively regulated; the circulating pump 4 is arranged below the expansion kettle 1 and is partially inserted into the expansion kettle 1, the expansion kettle 1 and the circulating pump 4 form an integrated structure, the structure can improve the conveying efficiency of cooling media, two fans 5-2 are arranged in the box 11 in a vertical direction, the two fans 5-2 are opposite to the expansion kettle 1 in the width direction of the box 11, and the two fans 5-2 can accelerate the heat dissipation effect of the radiator 5-1; as shown in fig. 6, the rear end plate of the box body 11 opposite to the fan 5-2 is also provided with a plurality of ventilation openings which are arranged at intervals, so that the gas exchange between the interior of the box body 11 and the external environment is ensured; meanwhile, the top of the rear end plate of the box body 11 is provided with an opening to form a lifting handle of the box body 11, so that the carrying of the high-power charging and cooling device can be facilitated.
Preferably, as shown in fig. 2 and 6, screw holes 11-1 are formed in the bottom plate and the rear end plate of the box 11, so that the high-power charging and cooling device can be fixedly installed in different directions; meanwhile, the box body 11 can be connected with the mounting plate 11-2 through screw holes, and long round holes are formed in two ends of the mounting plate 11-2, so that the box body 11 can be flexibly fixed.
Further, as shown in fig. 2, the high power charge cooling device further includes a fluid connector 12; the two fluid connectors 12 are correspondingly arranged at the second end of the liquid outlet pipeline 2 and the second end of the liquid return pipeline 3; the second end of the liquid outlet pipeline 2 and the second end of the liquid return pipeline 3 are respectively communicated with a liquid inlet and a liquid outlet of the charging gun cable cooling pipe 14 through a fluid connector 12.
Preferably, the fluid connector 12 is a steel ball self-locking fluid connector, the connection or disconnection with the connector is realized through pushing or pulling, after the connector is connected, valve cores in the steel ball self-locking fluid connector are automatically opened, and the smoothness of the liquid outlet pipeline 2 and the liquid return pipeline 3 and the charging gun cable cooling pipe 14 is kept; when the joint is disconnected, the valve core in the steel ball self-locking type fluid connector is automatically closed, so that leakage of cooling medium is prevented.
Further, as shown in fig. 7, 8 and 9, the high-power charging cooling device further includes two quick connectors 13, where the two quick connectors 13 are single-inlet single-outlet or multiple-inlet multiple-outlet quick connectors, respectively; the liquid inlet and the liquid outlet of the charging gun cable cooling pipe 14 are correspondingly connected with the two fluid connectors 12 through the two quick connectors 13. As shown in fig. 7, the cooling medium inlet and outlet form of the charging gun cable cooling tube 14 is one inlet and one outlet; as shown in fig. 8, the cooling medium inlet and outlet form of the charging gun cable cooling tube 14 is a one-inlet two-outlet type; as shown in fig. 9, the charging gun cable cooling tube 14 has a two-in two-out type cooling medium inlet and outlet. The two-in and two-out type cooling medium of the charging gun cable cooling pipe 14 can increase the heat quantity of the charging gun cable absorbed by the cooling medium, so that the cooling efficiency is improved.
Preferably, the cooling medium used by the high-power charging and cooling device is a mixed solution of water and glycol, the water has a flame-retardant effect, and after the glycol is mixed, the lubricity is increased, the freezing point is reduced, and the low-temperature performance is improved. Meanwhile, the high-power charging and cooling device adopts IP68 protection, so that dust is completely prevented from entering the inner core component, and the device can work normally after being soaked in water with the depth of not more than 1 meter.
Further, the charge cooling method of the present invention is applied to a high-power charge cooling device, and the charge cooling method includes: the cooling medium stored in the expansion pot 1 is conveyed to the charging gun cable cooling pipe 14 through the liquid outlet pipeline 2 so as to cool and dissipate heat of the charging gun cable; the cooling medium cooled and heat exchanged by the charging gun cable cooling pipe 14 is conveyed back to the expansion kettle 1 after being subjected to heat dissipation and cooling through the liquid return pipeline 3 and the heat dissipation mechanism 5; the cooling medium in the expansion kettle 1 after heat dissipation and cooling is conveyed to the charging gun cable cooling pipe 14 through the liquid outlet pipeline 2 again to form circulation. The cooling medium is used as a circulating medium, the liquid outlet pipeline 2 and the liquid return pipeline 3 are used as circulating pipelines, and the expansion kettle 1, the heat dissipation mechanism 5 and the charging gun cable cooling pipe 14 are used as component units arranged on the circulating pipelines. The circulating medium, the circulating line and the component unit form a circulating system as a whole. The charging cooling method can continuously radiate heat of the charging gun cable by using the circulating system, and has high cooling efficiency.
Further, the charge cooling method further includes: monitoring the temperature and pressure of the cooling medium of the liquid outlet pipeline 2, the temperature of the cooling medium of the liquid return pipeline 3 and the liquid level in the expansion kettle 1; when the difference between the temperature of the cooling medium in the liquid return pipeline 3 and the temperature of the cooling medium in the liquid outlet pipeline 2 is larger than a preset value, the control heat dissipation mechanism 5 is started; when the pressure of the cooling medium of the liquid outlet pipeline 2 is larger than a preset value, controlling the liquid outlet pipeline 2 to release pressure; and alarming when the liquid level in the expansion kettle 1 is higher than a preset value. The circulating system is provided with monitoring equipment, so that the running condition of the upper component unit of the circulating system and the state of the circulating medium in the circulating pipeline can be obtained in real time. The charging and cooling method can monitor the charging and cooling conditions in real time and has high safety coefficient.
Preferably, the charging cooling method specifically includes: when the charging gun is charged, the cooling medium enters the liquid outlet pipeline 2, the circulating pump 4 pressurizes the cooling medium entering the liquid outlet pipeline 2, the cooling medium enters the charging gun cable cooling pipe 14 to cool the cable, and the cooling medium after cooling and heat exchanging of the charging gun cable cooling pipe 14 flows through the radiator 5-1 to radiate heat; the fan 5-2 blows air to the radiator 5-1 to accelerate the radiator 5-1 to radiate heat, and the cooling medium returns to the expansion kettle 1 through the liquid return pipeline 3 after radiating heat to circulate again; the operation states of the circulation pump 4 and the heat radiation mechanism 5 are controlled by the cooling controller 10. When the pressure of the cooling medium conveyed to the charging gun cable cooling pipe 14 is larger than a preset value, the pressure release mechanism 9 is opened, and part of the cooling medium in the liquid outlet pipeline 2 can be directly returned into the expansion kettle 1 through the pressure release mechanism 9. The liquid temperature and pressure sensor 6, the liquid return temperature sensor 7 and the liquid level sensor 8 are connected with the cooling controller 10, and the heat dissipation mechanism 5 is controlled to be started when the difference between the temperature of the cooling medium detected by the liquid return temperature sensor 7 and the temperature of the cooling medium detected by the liquid temperature and pressure sensor 6 is larger than a preset value; when the pressure of the cooling medium detected by the liquid temperature and pressure sensor 6 is larger than a preset value, controlling the pressure release mechanism 9 to release pressure; and alarming when the liquid level detected by the liquid level sensor 8 is higher than a preset value. The cooling controller 10 controls the running states of the circulating pump 4 and the fan 5-2, meanwhile, the circulating pump 4 and the fan 5-2 also transmit own information back to the cooling controller 10 in real time, the cooling controller 10 is also connected with the charging pile controller through the communication module 10-1 for communication, the cooling controller 10 is highly integrated, the running states of various devices can be monitored and regulated in real time, the cooling controller 10 can automatically select a working mode, such as a standby mode, an automatic mode, a sleep mode or a fault mode, and the like according to a preset automatic control program, so that the high-power charging and cooling device is mainly controlled automatically through the cooling controller 10, and workers only need to regularly overhaul the devices and replace cooling mediums for the expansion kettle 1 at ordinary times.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A high power charge cooling device, comprising:
an expansion pot (1), the expansion pot (1) being adapted to accommodate a cooling medium;
the liquid outlet pipeline (2), the first end of the liquid outlet pipeline (2) is communicated with the liquid outlet of the expansion kettle (1), and the second end of the liquid outlet pipeline (2) is communicated with the liquid inlet of the charging gun cable cooling pipe (14) so as to convey the cooling medium in the expansion kettle (1) to the charging gun cable cooling pipe (14);
the first end of the liquid return pipeline (3) is communicated with a liquid return port of the expansion kettle (1), and the second end of the liquid return pipeline (3) is communicated with a liquid outlet of the charging gun cable cooling pipe (14) so as to return a cooling medium cooled and heat exchanged by the charging gun cable cooling pipe (14) to the expansion kettle (1);
the circulating pump (4) is arranged on a liquid outlet of the expansion kettle (1), and the circulating pump (4) is used for generating pressure to drive the cooling medium to flow in the liquid outlet pipeline (2), the charging gun cable cooling pipe (14) and the liquid return pipeline (3);
and the heat dissipation mechanism (5) is arranged on the liquid return pipeline (3), and the heat dissipation mechanism (5) is used for dissipating heat of a cooling medium returned to the expansion kettle (1).
2. The high-power charge cooling device according to claim 1, wherein the heat dissipation mechanism (5) includes:
a radiator (5-1) arranged on the liquid return pipeline (3);
a fan (5-2) disposed opposite to the radiator (5-1);
the cooling medium cooled and heat exchanged by the charging gun cable cooling pipe (14) flows through the radiator (5-1) to radiate heat; the fan (5-2) blows air to the radiator (5-1) to accelerate heat dissipation of the radiator (5-1).
3. The high power charge cooling device of claim 2, further comprising:
the liquid temperature and pressure sensor (6) is arranged on the liquid outlet pipeline (2), and the liquid temperature and pressure sensor (6) is used for sensing the temperature and pressure of the cooling medium conveyed to the charging gun cable cooling pipe (14);
the liquid return temperature sensor (7) is arranged on the liquid return pipeline (3), and the liquid return temperature sensor (7) is used for sensing the temperature of the cooling medium cooled and heat exchanged by the charging gun cable cooling pipe (14);
the liquid level sensor (8) is arranged in the expansion kettle (1), and the liquid level sensor (8) is used for sensing the liquid level of the cooling medium in the expansion kettle (1).
4. The high power charge cooling device of claim 3, further comprising:
the pressure release mechanism (9) is arranged between the liquid outlet pipeline (2) and the liquid return pipeline (3) and is used for communicating the liquid outlet pipeline (2) with the liquid return pipeline (3), and the pressure release mechanism (9) is used for being opened when the pressure of a cooling medium conveyed to the charging gun cable cooling pipe (14) is larger than a preset value so that part of the cooling medium in the liquid outlet pipeline (2) directly returns to the expansion kettle (1) through the pressure release mechanism (9).
5. The high power charge cooling device according to claim 4, wherein the pressure relief mechanism (9) comprises:
the pressure relief pipe (9-1), one end of the pressure relief pipe (9-1) is communicated with the liquid outlet pipeline (2), and the other end of the pressure relief pipe (9-1) is communicated with the liquid return pipeline (3);
the pressure release valve (9-2) is arranged on the pressure release pipe (9-1);
when the pressure of the cooling medium conveyed to the charging gun cable cooling pipe (14) is smaller than or equal to a preset value, the pressure relief valve (9-2) is closed so that all the cooling medium in the liquid outlet pipeline (2) is conveyed to the charging gun cable cooling pipe (14); when the pressure of the cooling medium conveyed to the charging gun cable cooling pipe (14) is larger than the preset value, the pressure relief valve (9-2) is opened so that part of the cooling medium in the liquid outlet pipeline (2) directly returns into the expansion kettle (1) through the pressure relief pipe (9-1).
6. The high power charge cooling device of claim 5, further comprising:
the cooling controller (10) is connected with the circulating pump (4), the heat dissipation mechanism (5), the liquid outlet temperature and pressure sensor (6), the liquid return temperature sensor (7) and the liquid level sensor (8); the communication module (10-1) is arranged on the cooling controller (10), and the cooling controller (10) is connected with the charging pile controller through the communication module (10-1) for communication;
the cooling controller (10) is used for controlling the running states of the circulating pump (4) and the heat dissipation mechanism (5) according to the sensing data of the liquid outlet temperature and pressure sensor (6), the liquid return temperature sensor (7) and the liquid level sensor (8).
7. The high power charge cooling device of claim 6, further comprising:
the radiator (5-1) is arranged on the rear end wall of the box body (11); the expansion kettle (1) is arranged at one side of the inside of the box body (11); the two fans (5-2) are oppositely arranged inside the box body (11) along the vertical direction, and the two fans (5-2) are opposite to the expansion kettle (1) along the width direction of the box body (11); the circulating pump (4) is arranged below the expansion kettle (1) and is partially inserted into the expansion kettle (1).
8. The high power charge cooling device of claim 1, further comprising:
the two fluid connectors (12) are arranged, and the two fluid connectors (12) are correspondingly arranged at the second end of the liquid outlet pipeline (2) and the second end of the liquid return pipeline (3);
the two quick connectors (13) are respectively single-inlet single-outlet or multi-inlet multi-outlet quick connectors; the liquid inlet and the liquid outlet of the charging gun cable cooling pipe (14) are correspondingly connected with the two fluid connectors (12) through the two quick connectors (13);
the second end of the liquid outlet pipeline (2) and the second end of the liquid return pipeline (3) are respectively communicated with a liquid inlet and a liquid outlet of the charging gun cable cooling pipe (14) through the fluid connector (12); the charging gun cable cooling pipes (14) are single or multiple.
9. A charge cooling method, characterized in that the charge cooling method is applied to the high-power charge cooling device according to any one of claims 1 to 8, the charge cooling method comprising:
the cooling medium stored in the expansion kettle (1) is conveyed to a charging gun cable cooling pipe (14) through a liquid outlet pipeline (2) so as to cool and dissipate heat of a charging gun cable;
cooling medium cooled and heat exchanged by the charging gun cable cooling pipe (14) is conveyed back to the expansion kettle (1) after being subjected to heat dissipation and cooling through the liquid return pipeline (3) and the heat dissipation mechanism (5);
and conveying the cooling medium which is subjected to heat dissipation and cooling in the expansion kettle (1) to a charging gun cable cooling pipe (14) through the liquid outlet pipeline (2) again to form circulation.
10. The charge cooling method according to claim 9, characterized in that the charge cooling method further comprises:
monitoring the temperature and pressure of the cooling medium of the liquid outlet pipeline (2), the temperature of the cooling medium of the liquid return pipeline (3) and the liquid level in the expansion kettle (1);
when the difference between the temperature of the cooling medium of the liquid return pipeline (3) and the temperature of the cooling medium of the liquid outlet pipeline (2) is larger than a preset value, the heat dissipation mechanism (5) is controlled to be started; when the pressure of the cooling medium of the liquid outlet pipeline (2) is larger than a preset value, controlling the liquid outlet pipeline (2) to release pressure; and alarming when the liquid level in the expansion kettle (1) is higher than a preset value.
CN202310328938.5A 2023-03-30 2023-03-30 High-power charging and cooling device and charging and cooling method Pending CN116092743A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310328938.5A CN116092743A (en) 2023-03-30 2023-03-30 High-power charging and cooling device and charging and cooling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310328938.5A CN116092743A (en) 2023-03-30 2023-03-30 High-power charging and cooling device and charging and cooling method

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116512950A (en) * 2023-06-26 2023-08-01 毫厘机电(苏州)有限公司 Control method, device and computer program product of charging gun cooling equipment
CN116923139A (en) * 2023-09-01 2023-10-24 毫厘机电(苏州)有限公司 Cooling equipment for charging station

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116512950A (en) * 2023-06-26 2023-08-01 毫厘机电(苏州)有限公司 Control method, device and computer program product of charging gun cooling equipment
CN116512950B (en) * 2023-06-26 2023-09-12 毫厘机电(苏州)有限公司 Control method, device and computer program product of charging gun cooling equipment
CN116923139A (en) * 2023-09-01 2023-10-24 毫厘机电(苏州)有限公司 Cooling equipment for charging station

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