CN113799632B - Cooling system and high-power liquid-cooled super quick-charging equipment - Google Patents

Cooling system and high-power liquid-cooled super quick-charging equipment Download PDF

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Publication number
CN113799632B
CN113799632B CN202111267796.3A CN202111267796A CN113799632B CN 113799632 B CN113799632 B CN 113799632B CN 202111267796 A CN202111267796 A CN 202111267796A CN 113799632 B CN113799632 B CN 113799632B
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liquid
cooling
pipe
cable
electrode
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CN113799632A (en
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覃见吉
邓文生
齐杰
张民
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Guangzhou Ruisu Intelligent Technology Co ltd
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Guangzhou Ruisu Intelligent 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
    • 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
    • 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
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention relates to the technical field of new energy charging, in particular to a cooling system and high-power liquid-cooling super rapid charging equipment. The cooling system comprises a liquid conveying pipe, a cooling pipe and a cooling device; the liquid cooling charging gun comprises a first electrode and a second electrode, and the cable comprises a first cable and a second cable; the first electrode is connected with the power supply device through a first cable, and the second electrode is connected with the power supply device through a second cable; the first electrode and the second electrode respectively comprise infusion tubes for cooling liquid to pass through, and the first cable and the second cable respectively comprise cooling tubes for cooling liquid to pass through; the infusion tube is connected with the cooling tube, and the cooling device or the infusion tube is connected with the cooling device to form a circulation loop. It can realize the whole cooling, the cooling to liquid cooling rifle equipment of charging high-efficiently, fully, is favorable to guaranteeing high efficiency, the stable work of rifle of charging.

Description

Cooling system and high-power liquid-cooled super quick-charging equipment
Technical Field
The invention relates to the technical field of new energy charging, in particular to a cooling system and high-power liquid-cooling super rapid charging equipment.
Background
The new energy charging column is used as an important supporting facility of the new energy electric automobile, and the importance and functional requirements of the new energy charging column are continuously increased along with the development and popularization of the electric automobile.
The liquid cooling rifle cooling method that uses on the market at present is basically by one end (anodal or negative pole) feed liquor, the single cycle mode of other end play liquid, this kind of mode liquid is in the cable all the time and produces power loss heating stage because of transshipping, can lead to liquid temperature high, circulating pressure is big (because of receiving the influence of liquid cooling pipe diameter), the velocity of flow is low, the radiating effect is unsatisfactory, lead to liquid cooling pipe to produce the blow out because of pressure (temperature) is too high easily, situations such as seepage liquid, thereby produce adverse effect to the stability of equipment work.
Disclosure of Invention
The invention aims to provide a cooling system and high-power liquid-cooling super rapid charging equipment, which can efficiently and fully realize the integral cooling and temperature reduction of liquid-cooling charging gun equipment and are beneficial to ensuring the efficient and stable operation of a charging gun.
Embodiments of the invention may be implemented as follows:
in a first aspect, the present invention provides a cooling system for cooling a liquid-cooled charging gun and an electrical cable, comprising:
a transfusion tube, a cooling tube and a cooling device;
the liquid cooling charging gun comprises a first electrode and a second electrode, and the cable comprises a first cable and a second cable; the first electrode is connected with a power supply device through the first cable, and the second electrode is connected with the power supply device through the second cable;
the first electrode and the second electrode respectively comprise infusion tubes for cooling liquid to pass through, and the first cable and the second cable respectively comprise cooling tubes for cooling liquid to pass through;
the infusion tube is connected with the cooling tube, and the cooling device or the infusion tube is connected with the cooling device to form a circulation loop.
Through a large number of experiments and tests, the inventor finds that the existing cooling mode of the liquid cooling charging gun is a single-cycle working mode in which liquid is fed from the positive electrode and the negative electrode and liquid is discharged from the other end. And the cable connected with the charging gun can generate a large amount of heat in the working and standby processes, and the heat can not be dissipated through the positive and negative cooling modes, so that the power loss of the cable caused by overload is caused, the charging efficiency is influenced, and meanwhile, the cooling system can be burdened, and the normal work of the charging equipment is influenced.
The cooling system is used for cooling the liquid cooling charging gun and the cable, wherein a liquid conveying pipe arranged in an electrode (comprising a first electrode and a second electrode, the same applies below) can be used for cooling liquid to pass through so as to realize cooling of the electrode, and therefore stable and efficient work of the electrode and the periphery of the electrode is guaranteed; and the cooling pipe arranged in the cable (comprising the first cable and the second cable, the same below) connected with the electrodes can be used for cooling liquid to pass through so as to realize cooling of the cable, so that stable and efficient work of the cable and the periphery of the cable is guaranteed. Cooling system has carried out cooling to electrode and cable simultaneously promptly to make cable and electrode homoenergetic work under appropriate, stable condition, so avoided the high temperature that the cable overload produced can not in time cool down and lead to situations such as cooling circuit blasting, seepage liquid, can ensure equipment job stabilization nature and high efficiency.
In conclusion, the cooling system is simple in structure and convenient to operate, can simultaneously guarantee the stability and reliability of the cooling loop and the charging equipment, and has remarkable economic benefits.
In an alternative embodiment, the fluid line includes a first fluid tube disposed in the first electrode and a second fluid tube disposed in the second electrode;
the cooling tube comprises a first cold tube disposed in the first cable and a second cold tube disposed in the second cable;
the first liquid pipe is connected with the first cold pipe, and the second liquid pipe is connected with the second cold pipe.
In an alternative embodiment, the input of the first liquid pipe and the input of the second liquid pipe are both connected to the outlet of the cooling device;
and the output end of the first cold pipe and the output end of the second cold pipe are both connected with the inlet of the cooling device.
In an alternative embodiment, the cooling system includes an inlet pipe and an outlet pipe;
the input of feed liquor pipe with cooling device connects, the output of feed liquor pipe respectively with first liquid pipe with the second liquid union coupling, first cold pipe with the output of second cold pipe all with the input of drain pipe is connected, the output of drain pipe with cooling device connects.
In an alternative embodiment, the output end of the liquid inlet pipe is close to one end of the first electrode far away from the first cable;
and the output end of the liquid inlet pipe is close to one end, far away from the second cable, of the second electrode.
In an alternative embodiment, the cooling system further comprises a relay cooler;
the outlet of the cooling device is connected with the input end of the relay cooler through the first liquid pipe and the first cold pipe;
the output end of the relay cooler is connected with the inlet of the cooling device through the second liquid pipe and the second cold pipe.
In an alternative embodiment, the outlet of the cooling device is connected to the input of the first cold pipe connection, the output of the first cold pipe is connected to the input of the first liquid pipe, and the output of the first liquid pipe is connected to the input of the relay cooler;
the output end of the relay cooler is connected with the input end of the second liquid pipe, the output end of the second liquid pipe is connected with the input end of the second cold pipe, and the output end of the second cold pipe is connected with the inlet of the cooling device.
In an alternative embodiment, the relay cooler comprises a body and a fan;
the liquid inlet pipe and the liquid outlet pipe are both connected with the body, and the fan is arranged on the body.
In an alternative embodiment, the cooling system further comprises a liquid storage tank and a circulation pump;
the output end of the cooling device is connected with the inlet of the circulating pump through the liquid storage tank, and the outlet of the circulating pump is connected with the liquid conveying pipe.
In an alternative embodiment, the cooling system further comprises a filter, and the reservoir is connected to the circulation pump through the filter.
In an alternative embodiment, the circulation pump is a 24V once-through pump.
In an alternative embodiment, a liquid level sensor and a filling opening are arranged on the liquid storage tank.
In an optional implementation manner, a pressure sensor is arranged on the liquid inlet pipe, and a temperature sensor and a flow sensor are arranged on the liquid outlet pipe.
In a second aspect, the present invention provides a high power liquid-cooled super fast charging apparatus, including a liquid-cooled charging gun, a cable, a power supply device and the cooling system according to any one of the foregoing embodiments;
the liquid cooling charging gun is connected with the power supply device through the cable, and the cooling system is respectively connected with the liquid cooling charging gun and the cable.
The high-power liquid-cooling super quick charging device can utilize the cooling system to cool the electrode and the cable simultaneously, thereby providing the cooling effect of the high-power liquid-cooling super quick charging device and further ensuring that the liquid-cooling charging gun can efficiently and stably complete the charging task.
The beneficial effects of the embodiment of the invention include, for example:
the cooling system of the scheme comprises a liquid conveying pipe and a cooling pipe. And the cooling pipe, the infusion pipe and the cooling device form a circulation loop for cooling. The cooling system is used for cooling the liquid cooling charging gun and the cable, and the liquid conveying pipe is used for allowing cooling liquid to pass through so as to realize cooling of the electrode, so that stable and efficient work of the electrode and the periphery of the electrode is guaranteed; the cooling pipe is used for supplying the cooling liquid to pass through in order to realize the cooling to the cable to ensure the stable high-efficient work of cable and cable periphery. So cooling system has carried out cooling to electrode and cable simultaneously for cable and electrode homoenergetic are enough to work under appropriate, stable condition, and then guarantee charging equipment job stabilization nature, high efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a cooling system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another cooling system according to an embodiment of the present invention;
fig. 3 is a control schematic diagram of a cooling system according to an embodiment of the present invention.
An icon: 10-a cooling system; 11-liquid cooling charging gun; 11 a-a first electrode; 11 b-a second electrode; 12-a cable; 12 a-a first cable; 12 b-a second cable; 13-a liquid inlet pipe; 14-a liquid outlet pipe; 100-a transfusion tube; 110-a first liquid tube; 120-a second liquid tube; 200-a cooling pipe; 210-a first cold pipe; 220-a second cold pipe; 300-a cooling device; 400-relay cooler; 510-a liquid storage tank; 511-liquid level sensor; 512-a liquid filling port; 520-circulation pump; 530-a filter; 600-a pressure sensor; 710-a temperature sensor; 720-a flow sensor; 800-a main controller; 900-Heat dissipation Fan.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are only used to distinguish one description from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
The liquid cooling charging gun 11 cooling method that uses on the market at present is basically by one end (anodal or negative pole) feed liquor, the single cycle mode of the other end play liquid, this kind of mode liquid is in cable 12 all the time and produces power loss heating stage because of transshipping, can lead to liquid temperature high, circulation pressure is big (because of receiving the influence of liquid cooling pipe diameter), the velocity of flow is low, the radiating effect is unsatisfactory, lead to liquid cooling pipe easily because of pressure (temperature) too high to produce the blow pipe, situations such as seepage liquid, thereby produce adverse effect to the stability of equipment work.
In order to improve the technical problem, a cooling system 10 and a high-power liquid-cooled super rapid charging device are provided in the following embodiments.
Referring to fig. 1, the present embodiment provides a cooling system 10 for cooling a liquid-cooled charging gun 11 and a cable 12, which includes a liquid-cooled charging gun tube 100, a cooling tube 200 and a cooling device 300.
The liquid cooling charging gun 11 comprises a first electrode 11a and a second electrode 11b, and the cable 12 comprises a first cable 12a and a second cable 12b; the first electrode 11a is connected with a power supply device through a first cable 12a, and the second electrode 11b is connected with the power supply device through a second cable 12b;
the first electrode 11a and the second electrode 11b each include an infusion tube 100 for passing a coolant therethrough, and the first cable 12a and the second cable 12b each include a cooling tube 200 for passing a coolant therethrough;
the infusion tube 100 is connected to the cooling tube 200, and the cooling device 300 or the infusion tube 100 is connected to the cooling device 300 to form a circulation circuit.
Through a large number of experiments and tests, the inventor finds that the cooling mode of the existing liquid-cooling charging gun 11 is a single-cycle working mode in which liquid is fed from the positive electrode and the negative electrode and liquid is discharged from the other end. The cable 12 connected to the charging gun also generates a lot of heat during the operation and standby process, and the heat cannot be dissipated by the above-mentioned cooling method of the positive and negative electrodes, so that the power loss of the cable 12 due to overload is caused, which affects the charging efficiency, and also causes a burden on the cooling system 10, which further affects the normal operation of the charging device.
The cooling system 10 of the present solution is used for cooling the liquid-cooled charging gun 11 and the cable 12, wherein the infusion tube 100 disposed in the electrode (including the first electrode 11a and the second electrode 11b, the same applies below) can be used for passing cooling liquid to cool the electrode, so as to ensure stable and efficient operation of the electrode and the periphery of the electrode; and the cooling pipe 200 provided in the cable 12 (including the first cable 12a and the second cable 12b, the same applies hereinafter) to which the electrodes are connected can be used for the passage of the cooling liquid to achieve cooling of the cable 12, so as to ensure stable and efficient operation of the cable 12 and the periphery of the cable 12. Cooling system 10 has carried out cooling to electrode and cable 12 simultaneously promptly to make cable 12 and electrode all can work under appropriate, stable condition, so avoided the high temperature that cable 12 transships the production can not in time cool down and lead to situations such as cooling circuit blasting, seepage liquid, can ensure equipment job stabilization nature and high efficiency.
Please refer to fig. 1 to 3 for further details of the cooling system 10.
As can be seen from the figures, in the present embodiment of the invention, the infusion tube 100 includes a first liquid tube 110 and a second liquid tube 120, the first liquid tube 110 is disposed in the first electrode 11a, and the second liquid tube 120 is disposed in the second electrode 11 b;
the cooling pipe 200 includes a first cold pipe 210 and a second cold pipe 220, the first cold pipe 210 being disposed in the first cable 12a, the second cold pipe 220 being disposed in the second cable 12b; first liquid pipe 110 is connected to first cold pipe 210, and second liquid pipe 120 is connected to second cold pipe 220.
Optionally, in this embodiment, the first electrode 11a is a positive electrode of the liquid-cooling charging gun 11, and the second electrode 11b is a negative electrode of the liquid-cooling charging gun 11. It is understood that in other embodiments of the present invention, the first electrode 11a may be a negative electrode of the liquid-cooled charging gun 11, and the corresponding second electrode 11b is a positive electrode of the liquid-cooled charging gun 11, as long as the liquid transport tube 100 can cool the electrodes, which is merely an example and is not limited thereto.
Referring to fig. 1, it can be seen that the input end of the first liquid pipe 110 and the input end of the second liquid pipe 120 are both connected to the outlet of the cooling device 300; the output end of the first cold pipe 210 and the output end of the second cold pipe 220 are both connected with the inlet of the cooling device 300.
A first pole component formed by the first liquid pipe 110 and the first cold pipe 210 and a second pole component formed by the second liquid pipe 120 and the second cold pipe 220 form a circulation loop; the infusion tube 100, the cooling tube 200, and the cooling device 300 also form a circulation circuit. The cooling device 300 thus forms a dual-cycle heat dissipation mode. The working mode has the advantages of low pressure, high liquid flow rate, small resistance, high heat dissipation and the like, and the defects of pipe explosion, leakage and the like caused by high pressure can be avoided.
It is understood that, in other embodiments, the input ends of the first cold pipe 210 and the second cold pipe 220 are both connected to the outlet of the cooling device 300, and the input ends of the first liquid pipe 110 and the second liquid pipe 120 are both connected to the inlet of the cooling device 300, as long as the cable 12 and the electrode can be cooled, which is merely an example and is not limited thereto.
Further, as can be seen from the figure, in the present embodiment of the invention, the cooling system 10 includes an inlet pipe 13 and an outlet pipe 14;
the input end of the liquid inlet pipe 13 is connected with the cooling device 300, the output end of the liquid inlet pipe 13 is respectively connected with the first liquid pipe 110 and the second liquid pipe 120, the output ends of the first cold pipe 210 and the second cold pipe 220 are both connected with the input end of the liquid outlet pipe 14, and the output end of the liquid outlet pipe 14 is connected with the cooling device 300.
The arrangement mode is convenient for reduce the length of a circulation loop formed by the first pole assembly and the second pole assembly, and the cooling effect of double circulation is guaranteed.
Optionally, the output end of the liquid inlet pipe 13 is close to one end of the first electrode 11a far away from the first cable 12 a; and the output end of the liquid inlet pipe 13 is close to one end of the second electrode 11b far away from the second cable 12 b. This facilitates further shortening of the length of the circulation circuit and provides the liquid inlet efficiency of the liquid inlet pipe 13.
Referring to fig. 2, it can be seen that the cooling system 10 further includes a relay cooler 400; the outlet of the cooling device 300 is connected with the input end of the relay cooler 400 through the first liquid pipe 110 and the first cold pipe 210; the output end of the relay cooler 400 is connected to the inlet of the cooling device 300 through the second liquid pipe 120 and the second cold pipe 220.
That is, the cooling liquid firstly passes through the first pole assembly, cools and cools the first electrode 11a and the first cable 12a, and then the cooling liquid passes through the relay cooler 400 to be cooled, and then the cooling liquid enters the second pole assembly to cool and cool the second electrode 11b and the second cable 12b, and then is conveyed to the cooling device 300. Thus, a single circulation circuit in which the liquid transport tube 100, the cooling tube 200, the relay cooler 400, and the cooling device 300 are all connected in series is formed.
The working mode has the advantages that heat generated by the positive pole of the cable 12 is transmitted to the negative pole cable 12 after being radiated by the relay radiator, the cooling temperature of the cooling liquid is reduced, and the temperature of the cable 12 stably works in a safe range.
Further, as can be seen from the figure, in the present embodiment of the invention, the outlet of the cooling device 300 is connected to the input end of the first cold pipe 210, the output end of the first cold pipe 210 is connected to the input end of the first liquid pipe 110, and the output end of the first liquid pipe 110 is connected to the input end of the relay cooler 400;
the output end of the relay cooler 400 is connected to the input end of the second liquid tube 120, the output end of the second liquid tube 120 is connected to the input end of the second cold tube 220, and the output end of the second cold tube 220 is connected to the inlet of the cooling device 300.
Specifically, the outlet of the cooling device 300 is connected to the input end of the first cold pipe 210 through the liquid inlet pipe 13, and the output end of the second cold pipe 220 is connected to the inlet of the cooling device 300 through the liquid outlet pipe 14.
It is understood that in other embodiments of the present invention, the outlet of the liquid inlet pipe 13 can be connected to the inlet of the first liquid pipe 110 and then connected to the first cold pipe 210, as long as the liquid conveying pipe 100, the cooling pipe 200, the relay cooler 400 and the cooling device 300 form a cooling circuit connected in series, which is merely an example and is not limited thereto.
As can also be seen from fig. 1 and 2, in the present embodiment of the invention, the relay cooler 400 includes a body and a fan; liquid inlet pipe 13 and drain pipe 14 all with this body coupling, the fan setting is on the body. That is, the relay cooler 400 is a heat sink, and the cooling of the coolant is performed by the cooling fan 900.
Further, the cooling device 300 is a heat sink that cools the cooling liquid by the cooling fan 900.
In the present embodiment of the invention, the cooling system 10 further includes a liquid storage tank 510 and a circulation pump 520; the output end of the cooling device 300 is connected to the inlet of the circulation pump 520 through the liquid storage tank 510, and the outlet of the circulation pump 520 is connected to the infusion tube 100.
Optionally, the cooling system 10 further comprises a filter 530, and the reservoir 510 is connected to the circulation pump 520 through the filter 530. Impurities in the cooling liquid can be filtered through the filter 530, and the working effect of the cooling liquid is guaranteed.
In this embodiment, the circulation pump 520 is a 24V once-through pump.
As can also be seen from the figure, in the present embodiment of the invention, a liquid level sensor 511 and a liquid filling port 512 are provided on the liquid storage tank 510. Wherein the level sensor 511 is used to monitor the content of the cooling liquid in the liquid storage tank 510, so as to avoid the situation of insufficient cooling liquid or excessive cooling liquid. And port 512 is used to add, replace, and release coolant from the cooling tank.
Further, in the present embodiment of the invention, the liquid inlet pipe 13 is provided with a pressure sensor 600, and the liquid outlet pipe 14 is provided with a temperature sensor 710 and a flow sensor 720. Wherein, the flow sensor 720 and the temperature sensor 710 are sequentially arranged in the direction of the pipeline from the motor to the cooling device 300. The flow sensor 720 can detect the flow rate of the coolant in the circulation circuit, and the temperature sensor 710 can detect the stabilization of the coolant in the circulation circuit.
In this embodiment, the cooling system 10 further includes a main controller 800, and the circulation pump 520, the cooling device 300, the relay cooler 400, the liquid level sensor 511, the pressure sensor 600, the temperature sensor 710, and the flow sensor 720 are all connected to the main controller 800. The main controller 800 can adjust the flow rate, cooling rate and increase or decrease the cooling liquid in the circulation loop in real time.
In a second aspect, the present invention provides a high power liquid-cooled super rapid charging apparatus, including a liquid-cooled charging gun 11, a cable 12, a power supply device and the cooling system 10 of any one of the foregoing embodiments;
the liquid-cooled charging gun 11 is connected with a power supply device through a cable 12, and the cooling system 10 is respectively connected with the liquid-cooled charging gun 11 and the cable 12.
Such super quick equipment that fills of high-power liquid cooling can utilize cooling system 10 to realize cooling down to electrode and cable 12 simultaneously to provide the cooling effect of the super quick equipment that fills of high-power liquid cooling, and then ensure that liquid cooling charging gun 11 can accomplish the task of charging high-efficiently, steadily.
The beneficial effects of the embodiment of the invention include, for example:
the liquid cooling mode of the charging gun comprises two modes of liquid cooling double circulation and liquid cooling relay heat dissipation single circulation.
Liquid cooling dual cycle mode of operation: the cooling liquid is in an independent anode and cathode cooling circulation working mode in the liquid cooling charging gun 11, in the working mode, the liquid cooled by the radiator is conveyed to the cooling pipes 200 in the anode and cathode plugs of the charging gun through respective independent liquid supply pipes to cool the plugs, and then the cooling liquid is respectively returned to the radiator through the cooling pipes 200 of the anode and cathode cables 12 to perform circulation work. The working mode has the advantages of low pressure, high liquid flow rate, small resistance, high heat dissipation and the like, and the defects of pipe explosion, leakage and the like caused by high pressure can be avoided.
Liquid cooling relay heat dissipation single cycle mode: after cooling through the radiator, the cooling liquid is fed from the positive electrode infusion tube 100 in the liquid cooling charging gun 11, is output to the input end of the relay radiator through the positive electrode cable 12 cooling tube 200, and then is output to the input end of the relay radiator through the output end of the relay radiator to the liquid inlet end of the negative electrode infusion tube 100 and then is output to the radiator through the negative electrode cable 12 cooling tube 200 for cooling circulation work.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (6)

1. A cooling system for cooling a liquid-cooled charging gun and a cable, comprising:
an infusion tube (100), a cooling tube (200), and a cooling device (300);
the liquid-cooled charging gun (11) comprises a first electrode (11 a) and a second electrode (11 b), and the cable (12) comprises a first cable (12 a) and a second cable (12 b); the first electrode (11 a) is connected with a power supply device through the first cable (12 a), and the second electrode (11 b) is connected with the power supply device through the second cable (12 b);
the first electrode (11 a) and the second electrode (11 b) each comprise an infusion tube (100) for passing cooling liquid therethrough, and the first cable (12 a) and the second cable (12 b) each comprise a cooling tube (200) for passing cooling liquid therethrough;
the infusion tube (100) is connected with the cooling tube (200), and the cooling device (300) or the infusion tube (100) is connected with the cooling device (300) to form a circulation loop;
the infusion tube (100) comprises a first liquid tube (110) and a second liquid tube (120), the first liquid tube (110) is arranged in the first electrode (11 a), and the second liquid tube (120) is arranged in the second electrode (11 b);
the cooling tube (200) comprises a first cold tube (210) and a second cold tube (220), the first cold tube (210) being disposed in the first cable (12 a), the second cold tube (220) being disposed in the second cable (12 b);
the first liquid pipe (110) is connected with the first cold pipe (210), and the second liquid pipe (120) is connected with the second cold pipe (220);
the input end of the first liquid pipe (110) and the input end of the second liquid pipe (120) are both connected with the outlet of the cooling device (300);
the output end of the first cold pipe (210) and the output end of the second cold pipe (220) are both connected with the inlet of the cooling device (300);
the cooling system comprises a liquid inlet pipe (13) and a liquid outlet pipe (14);
the input end of the liquid inlet pipe (13) is connected with the cooling device (300), the output end of the liquid inlet pipe (13) is respectively connected with the first liquid pipe (110) and the second liquid pipe (120), the output ends of the first cold pipe (210) and the second cold pipe (220) are both connected with the input end of the liquid outlet pipe (14), and the output end of the liquid outlet pipe (14) is connected with the cooling device (300);
the cooling system further comprises a relay cooler (400);
the outlet of the cooling device (300) is connected with the input end of the relay cooler (400) through the first liquid pipe (110) and the first cold pipe (210);
the output end of the relay cooler (400) is connected with the inlet of the cooling device (300) through the second liquid pipe (120) and the second cold pipe (220).
2. The cooling system according to claim 1, wherein:
the output end of the liquid inlet pipe (13) is close to one end, away from the first cable (12 a), of the first electrode (11 a);
and the output end of the liquid inlet pipe (13) is close to one end, far away from the second cable (12 b), of the second electrode (11 b).
3. The cooling system of claim 1, wherein:
the outlet of the cooling device (300) is connected with the input end connected with the first cold pipe (210), the output end of the first cold pipe (210) is connected with the input end of the first liquid pipe (110), and the output end of the first liquid pipe (110) is connected with the input end of the relay cooler (400);
the output end of the relay cooler (400) is connected with the input end of the second liquid pipe (120), the output end of the second liquid pipe (120) is connected with the input end of the second cold pipe (220), and the output end of the second cold pipe (220) is connected with the inlet of the cooling device (300).
4. The cooling system according to claim 1, wherein:
the relay cooler (400) includes a body and a fan;
the liquid inlet pipe (13) and the liquid outlet pipe (14) are connected with the body, and the fan is arranged on the body.
5. The cooling system according to claim 1, wherein:
the cooling system further comprises a liquid storage tank (510) and a circulation pump (520);
the output end of the cooling device (300) is connected with the inlet of the circulating pump (520) through the liquid storage tank (510), and the outlet of the circulating pump (520) is connected with the infusion tube (100).
6. The utility model provides a high-power liquid cooling super equipment of filling soon which characterized in that:
comprising a liquid-cooled charging gun (11), an electric cable (12), a power supply device and a cooling system according to any one of claims 1-5;
the liquid cooling charging gun (11) is connected with the power supply device through the cable (12), and the cooling system is respectively connected with the liquid cooling charging gun (11) and the cable (12).
CN202111267796.3A 2021-10-29 2021-10-29 Cooling system and high-power liquid-cooled super quick-charging equipment Active CN113799632B (en)

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CN207427671U (en) * 2017-09-29 2018-05-29 深圳市沃尔新能源电气科技股份有限公司 Liquid-cooled cable connected structure and charge connector
CN107933340A (en) * 2017-11-06 2018-04-20 深圳市沃尔新能源电气科技股份有限公司 The cold high power charging device of liquid and its monitoring method
US11660970B2 (en) * 2018-01-05 2023-05-30 Byton Limited On-board liquid-cooled or gas-cooled charging cable for electric vehicles
CN212991393U (en) * 2020-10-16 2021-04-16 张家港友诚新能源科技股份有限公司 Liquid cooling device of power core wire with contact pin terminal
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