CN113370814A - Liquid cooling charging gun system and charging control method based on same - Google Patents
Liquid cooling charging gun system and charging control method based on same Download PDFInfo
- Publication number
- CN113370814A CN113370814A CN202110858297.5A CN202110858297A CN113370814A CN 113370814 A CN113370814 A CN 113370814A CN 202110858297 A CN202110858297 A CN 202110858297A CN 113370814 A CN113370814 A CN 113370814A
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- liquid
- value
- charging
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- 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
- B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
-
- 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
- Y02T90/14—Plug-in electric vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention belongs to the field of charging guns, and discloses a liquid cooling charging gun system and a charging control method based on the same, wherein the liquid cooling charging gun system comprises a cable, a heat exchange main pipe, a gun head and a controller; one end of the cable is used for being connected with the charging module, the other end of the cable is connected with the gun head, a heat exchange branch pipe is arranged in the cable and is connected with a heat exchange main pipe, a radiator, a pressure pump and a pressure sensor are arranged on the heat exchange main pipe, the pressure pump and the pressure sensor are both connected with one end of a controller, and the other end of the controller is used for being connected with the charging module; the controller is used for receiving the pressure of the heat exchange liquid, and generating a first pressurizing pump control signal and sending the first pressurizing pump control signal to the pressurizing pump when the pressure of the heat exchange liquid is lower than a preset pressure alarm threshold value; and receiving the current operating power of the pressure pump, and when the pressure of the heat exchange fluid is lower than a preset pressure alarm threshold and the current operating power of the pressure pump is the same as the maximum operating power, generating a first charging module control signal and sending the first charging module control signal to the charging module. When guaranteeing charging efficiency, ensure the liquid cooling rifle safe and stable operation that charges.
Description
Technical Field
The invention belongs to the field of charging guns, and relates to a liquid cooling charging gun system and a charging control method based on the same.
Background
With the rapid development of new energy electric vehicles, more and more vehicle owners choose to purchase the new energy electric vehicles, and the intellectualization and the endurance mileage of the new energy electric vehicles are also developed greatly. As a matched charging facility of the electric automobile, the power of a charging pile is gradually increased, the single-gun charging voltage is gradually expanded to 1000V, and the current is expanded to 250A. Since the charging voltage is closely related to the withstand voltage of the vehicle battery pack, and larger breakthrough cannot be obtained in a short period, various development routes such as charging bow, double-gun charging, super charging and the like are provided in the charging current. The super charging is gradually the main development route of the next generation of high-power charging, the charging voltage and current are respectively expanded to 1500V and 600A, and the maximum charging power reaches 900 kW. In consideration of convenience in use, the increase in charging power cannot be solved by increasing the diameter of the cable, so that the liquid-cooled charging gun is produced, and the diameter can be reduced to improve convenience in use even when heat dissipation is solved.
However, the existing liquid-cooling charging gun only adds a limited detection means such as a flowmeter and a pressure sensor, and the control method is relatively simple and rough, for example, when the detected flow or pressure is 0, the charging current is directly reduced to a current value which can be borne by the charging cable through natural heat dissipation, the charging efficiency is greatly reduced, and the functionality is obviously deficient.
Disclosure of Invention
The invention aims to overcome the defect that in the prior art, when the state of a liquid-cooling charging gun is detected to be abnormal, the charging current is directly reduced to a current value which can be borne by natural heat dissipation of a charging cable, so that the charging efficiency is greatly reduced, and provides a liquid-cooling charging gun system and a charging control method based on the liquid-cooling charging gun system.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a liquid cooling charging gun system comprises a cable, a heat exchange main pipe, a gun head and a controller; one end of the cable is used for connecting the charging module, and the other end of the cable is connected with the gun head; a heat exchange branch pipe is arranged in the cable and connected with the heat exchange main pipe, and heat exchange liquid is filled in the heat exchange branch pipe and the heat exchange main pipe; the heat exchange main pipe is provided with a radiator, a pressure pump and a pressure sensor, the pressure pump and the pressure sensor are connected with one end of the controller, and the other end of the controller is connected with the charging module; the pressure sensor is used for detecting the pressure of the heat exchange liquid of the heat exchange main pipe and sending the pressure to the controller; the controller is used for receiving the pressure of the heat exchange liquid, and generating a first pressurizing pump control signal and sending the first pressurizing pump control signal to the pressurizing pump when the pressure of the heat exchange liquid is lower than a preset pressure alarm threshold value; the system is also used for receiving the current operating power of the pressure pump, and when the pressure of the heat exchange fluid is lower than a preset pressure alarm threshold and the current operating power of the pressure pump is the same as the maximum operating power, generating a first charging module control signal and sending the first charging module control signal to the charging module; the first pressure pump control signal is used for triggering the pressure pump to increase the running power; the first charging module control signal is used for triggering the charging module to reduce the charging current value to the quota current value under the natural heat dissipation condition of the cable.
The invention further improves the following steps:
the controller is also used for generating an insufficient pressure alarm signal when the pressure of the heat exchange liquid is lower than a preset pressure alarm threshold value and the current operation power of the pressurizing pump is the same as the maximum operation power.
The heat exchange main pipe is also provided with a flow meter and a heat exchange liquid tank, a liquid level meter is arranged in the heat exchange liquid tank, and the flow meter and the liquid level meter are both connected with the controller; the flowmeter is used for detecting the flow value of the heat exchange liquid in the heat exchange main pipe and sending the flow value to the controller; the liquid level meter is used for detecting the liquid level of the heat exchange liquid in the heat exchange liquid tank and sending the liquid level to the controller; the controller is also used for receiving the flow value and the liquid level of the heat exchange liquid; when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold value, generating a first pressurizing pump control signal and sending the first pressurizing pump control signal to a pressurizing pump; when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold value and the current operating power of the booster pump is the same as the maximum operating power, generating a first charging module control signal and sending the first charging module control signal to a charging module; when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold value and the liquid level of the heat exchange liquid is lower than a preset liquid level height alarm threshold value, generating a heat exchange liquid shortage alarm signal; and when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold, the current operating power of the booster pump is the same as the maximum operating power, and the liquid level of the heat exchange liquid is not lower than the preset liquid level height alarm threshold, generating a booster pump fault alarm signal.
An outlet temperature sensor and a return temperature sensor are also arranged on the heat exchange main pipe; the radiator comprises a radiating fan; the outlet temperature sensor and the return temperature sensor are respectively positioned on the outlet side and the return side of the radiator; the outlet temperature sensor is used for detecting the outlet temperature of the radiator and sending the outlet temperature to the controller; the return temperature sensor is used for detecting the return temperature of the radiator and sending the return temperature to the controller; the controller is used for receiving the outlet temperature of the radiator and the return temperature of the radiator, and generating a control signal of the heat dissipation fan and sending the control signal to the heat dissipation fan when the difference temperature between the outlet temperature of the radiator and the return temperature of the radiator is smaller than a preset difference temperature alarm threshold; the cooling fan control signal is used for triggering the cooling fan to increase the running power.
The radiator also comprises a fan detection device, wherein the fan detection device is used for detecting the working state of the cooling fan, and generating a cooling fan fault signal and sending the cooling fan fault signal to the controller when the working state of the cooling fan is in fault; the controller is used for receiving a cooling fan fault signal, responding to the cooling fan fault signal, generating a first charging module control signal and sending the first charging module control signal to the charging module, and generating a cooling fan fault warning signal.
The gun head comprises a positive terminal and a negative terminal, wherein the positive terminal is provided with a positive terminal temperature sensor, and the negative terminal is provided with a negative terminal temperature sensor; the positive terminal temperature sensor is used for detecting a positive terminal temperature value and sending the positive terminal temperature value to the controller; the negative terminal temperature sensor is used for detecting a negative terminal temperature value and sending the negative terminal temperature value to the controller; the controller is used for receiving the positive terminal temperature value and the negative terminal temperature value, and generating a second charging module control signal and sending the second charging module control signal to the charging module when at least one of the positive terminal temperature value and the negative terminal temperature value is higher than a preset first temperature alarm threshold value; the second charging module control signal is used for triggering the charging module to reduce the current charging current value.
The heat exchange main pipe is also provided with a flowmeter and a heat exchange liquid tank, a heater is arranged in the heat exchange liquid tank, and the heater is connected with the controller; the controller is also used for generating a heater control signal and sending the heater control signal to the heater when at least one of the temperature value of the positive electrode terminal and the temperature value of the negative electrode terminal is lower than a preset second temperature alarm threshold value, and generating a pressurizing pump starting signal to the pressurizing pump; the heater control signal is used for triggering the heater to start; the booster pump start signal is used for triggering the booster pump to start.
The system also comprises a cloud server and a mobile terminal, wherein the controller and the mobile terminal are connected with the cloud server; and the controller and the mobile terminal perform information interaction through the cloud server.
A charging control method based on a liquid cooling charging gun system comprises the following steps:
the method comprises the steps that the pressure of a heat exchange liquid of a heat dissipation main pipe of the liquid-cooling charging gun and the current operating power of a pressurizing pump are obtained, and when the pressure of the heat exchange liquid is lower than a preset pressure alarm threshold value, the operating power of the pressurizing pump of the liquid-cooling charging gun is increased; when the pressure of the heat exchange liquid is lower than a preset pressure alarm threshold value and the current running power of the pressurizing pump is the same as the maximum running power, the charging current value of the liquid-cooling charging gun is reduced to the limit current value of a cable of the liquid-cooling charging gun under the natural heat dissipation condition.
Further, the method also comprises the following steps:
when the pressure of the heat exchange liquid is lower than a preset pressure alarm threshold value and the current operation power of the pressurizing pump is the same as the maximum operation power, generating an insufficient pressure alarm signal;
the method comprises the steps that a heat exchange liquid flow value of a heat dissipation main pipe of the liquid-cooled charging gun and a heat exchange liquid level in a heat exchange liquid tank are obtained, and when the heat exchange liquid flow value is lower than a preset flow alarm threshold value, the running power of a pressurizing pump of the liquid-cooled charging gun is increased; when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold value and the current operating power of the pressurizing pump is the same as the maximum operating power, reducing the charging current value of the liquid-cooled charging gun to the limit current value of a cable of the liquid-cooled charging gun under a natural heat dissipation condition; when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold value and the liquid level of the heat exchange liquid is lower than a preset liquid level height alarm threshold value, generating a heat exchange liquid shortage alarm signal; when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold value, the current operating power of the booster pump is the same as the maximum operating power, and the liquid level of the heat exchange liquid is not lower than a preset liquid level height alarm threshold value, generating a booster pump fault alarm signal;
acquiring the outlet temperature of a radiator of the liquid cooling charging gun and the return temperature of the radiator, and increasing the operating power of a radiating fan of the liquid cooling charging gun when the difference temperature between the outlet temperature of the radiator and the return temperature of the radiator is smaller than a preset difference temperature alarm threshold;
acquiring a fault signal of a cooling fan of the liquid cooling charging gun, responding to the fault signal of the cooling fan, reducing a charging current value of the liquid cooling charging gun to a limit current value of a cable of the liquid cooling charging gun under a natural cooling condition, and generating a fault alarm signal of the cooling fan;
acquiring a positive terminal temperature value and a negative terminal temperature value of a gun head of the liquid-cooling charging gun, and reducing the current charging current value of the liquid-cooling charging gun when at least one of the positive terminal temperature value and the negative terminal temperature value is higher than a preset first temperature alarm threshold value; and when at least one of the temperature value of the positive terminal and the temperature value of the negative terminal is lower than a preset second temperature alarm threshold value, starting the pressurizing pump and a heater arranged in a heat exchange liquid tank of the liquid-cooling charging gun.
Compared with the prior art, the invention has the following beneficial effects:
according to the liquid cooling charging gun system, the pressure of the heat exchange liquid of the heat exchange main pipe is detected and sent to the controller, when the pressure of the heat exchange liquid is lower than a preset pressure alarm threshold value, a first pressurizing pump control signal is generated and sent to the pressurizing pump, the heat dissipation requirement of the liquid cooling charging gun is met by increasing the operating power of the pressurizing pump, and the current charging efficiency is guaranteed. Meanwhile, because the operating power of the booster pump is not wirelessly increased, when the current operating power of the booster pump is the same as the maximum operating power, namely when the booster pump runs at full power, a first charging module control signal is generated and sent to the charging module, so that the charging current value is reduced to the quota current value under the natural heat dissipation condition of the cable, the safe use of the liquid cooling charging gun is ensured, and safety accidents are prevented. Meanwhile, based on the control logic, the initial operating power of the pressure pump can be set to be low, the continuous increase of the operating power of the pressure pump is realized through the control signal of the first pressure pump, the power consumption and the noise of the pressure pump are reduced under the condition that the heat dissipation requirement is met, energy is saved, emission is reduced, and the cost is reduced.
Drawings
Fig. 1 is a schematic view of a liquid-cooled charging gun according to the present invention.
Wherein: 1-positive terminal; 2-a negative terminal; 3-a pressure sensor; 4-a cable; 5-a flow meter; 6-heat exchange branch pipes; 7-a pressure pump; 8-outlet temperature sensor; 9-a heat radiation fan; 10-a fan detection device; 11-return temperature sensor; 12-a liquid level meter; 13-a heater; 14-a charging module; 15-a cloud server; 16-a controller.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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 only a part of the embodiments of the present invention, and not all of the embodiments. 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 the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, in an embodiment of the present invention, a liquid cooling charging gun system is provided, which includes a cable 4, a heat exchange main pipe, a gun head, and a controller 16.
One end of the cable 4 is used for connecting the charging module 14, and the other end of the cable is connected with the gun head; a heat exchange branch pipe 6 is arranged in the cable 4, the heat exchange branch pipe 6 is connected with a heat exchange main pipe, and heat exchange liquid is filled in the heat exchange branch pipe 6 and the heat exchange main pipe; set up radiator, force (forcing) pump 7 and pressure sensor 3 on the heat transfer is responsible for, force (forcing) pump 7 and pressure sensor 3 all are connected with 16 one end of controller, and the 16 other ends of controller are used for connecting charging module 14.
Specifically, the cables 4 correspond to the gun heads one by one, but the number of the cables 4 and the gun heads is not limited, one cable 4 and one gun head can be arranged, a plurality of cables 4 and a plurality of gun heads can also be arranged, and similarly, the number of the heat exchange branch pipes 6 arranged in the cables 4 is not limited, and one or more cables can be arranged. The heat exchange branch pipe 6, the heat exchange main pipe, the controller 16, the booster pump 7, the pressure sensor 3 and the radiator form a heat exchange system.
The pressure sensor 3 is used for detecting the pressure of the heat exchange liquid of the heat exchange main pipe and sending the pressure to the controller 16; the controller 16 is used for receiving the pressure of the heat exchange liquid, and generating a first pressurizing pump control signal and sending the first pressurizing pump control signal to the pressurizing pump 7 when the pressure of the heat exchange liquid is lower than a preset pressure alarm threshold; the system is also used for receiving the current operating power of the pressure pump 7, and when the pressure of the heat exchange fluid is lower than a preset pressure alarm threshold and the current operating power of the pressure pump 7 is the same as the maximum operating power, generating a first charging module control signal and sending the first charging module control signal to the charging module 14; wherein, the first pressure pump control signal is used for triggering the pressure pump 7 to increase the running power; the first charging module control signal is used to trigger the charging module 14 to reduce the charging current value to the credit current value under the natural heat dissipation condition of the cable 4.
It is specific, be responsible for the heat transfer liquid pressure through pressure sensor 3 real-time detection heat transfer, and upload heat transfer liquid pressure to controller 16, when heat transfer liquid pressure is less than preset pressure warning threshold value, it is lower to indicate current heat transfer liquid pressure, consequently, the generation is used for triggering 7 increase running power's of force (forcing) pump control signal and sends to force (forcing) pump 7, and then increases the pressure in the return circuit, ensures heat transfer system's normal operating, ensures to reduce 7 consumption of force (forcing) pump and noise under the circumstances that satisfies the heat dissipation demand.
However, the operating power of the booster pump 7 is not wirelessly increased, when the current operating power of the booster pump 7 is the same as the maximum operating power, that is, the booster pump 7 is operated at full power, but the pressure of the heat exchange liquid is still lower than the preset pressure alarm threshold, the charging current value needs to be reduced to the credit current value under the natural heat dissipation condition of the cable 4, and the charge gun is prevented from being burnt due to the fault of the heat dissipation system.
To sum up, the liquid-cooled charging gun system of the present invention detects the heat exchange liquid pressure of the heat exchange main pipe and sends the heat exchange liquid pressure to the controller 16, generates a first pressure pump control signal and sends the first pressure pump control signal to the pressure pump 7 when the heat exchange liquid pressure is lower than the preset pressure alarm threshold, and ensures the heat dissipation requirement of the liquid-cooled charging gun and the current charging efficiency by increasing the operating power of the pressure pump 7. Meanwhile, because the operating power of the pressure pump 7 is not wirelessly increased, when the current operating power of the pressure pump 7 is the same as the maximum operating power, that is, the pressure pump 7 is operated at full power, a first charging module control signal is generated and sent to the charging module 14, so that the charging current value is reduced to a credit current value under the natural heat dissipation condition of the cable 4, the safe use of the liquid cooling charging gun is ensured, and safety accidents are prevented. Meanwhile, based on the control logic, the initial operating power of the pressure pump 7 can be set to be low, and the operating power of the pressure pump 7 is continuously increased through the control signal of the first pressure pump, so that the power consumption and the noise of the pressure pump 7 are reduced under the condition that the heat dissipation requirement is met, energy is saved, emission is reduced, and the cost is reduced.
Preferably, when the pressure of the heat exchange liquid is lower than a preset pressure alarm threshold value and the current operating power of the booster pump 7 is the same as the maximum operating power, the controller 16 simultaneously generates an insufficient pressure alarm signal to prompt a user to maintain the heat dissipation system, and the heat exchange main pipe and the heat exchange branch pipe 6 of the heat dissipation system are mainly checked to determine whether the heat exchange main pipe and the heat exchange branch pipe are damaged or loosened, so that the pressure of the whole heat exchange system is released.
Preferably, still set up flowmeter 5 and heat transfer liquid case on the heat transfer main pipe, set up level gauge 12 in the heat transfer liquid case, flowmeter 5 and level gauge 12 all are connected with controller 16.
The flowmeter 5 is used for detecting a heat exchange liquid flow value in the heat exchange main pipe and sending the heat exchange liquid flow value to the controller 16; the liquid level meter 12 is used for detecting the liquid level of the heat exchange liquid in the heat exchange liquid tank and sending the liquid level to the controller 16; the controller 16 is also used for receiving the flow value of the heat exchange liquid and the liquid level of the heat exchange liquid; when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold value, generating a first booster pump control signal and sending the first booster pump control signal to the booster pump 7; when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold value and the current operating power of the booster pump 7 is the same as the maximum operating power, generating a first charging module control signal and sending the first charging module control signal to the charging module 14; when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold value and the liquid level of the heat exchange liquid is lower than a preset liquid level height alarm threshold value, generating a heat exchange liquid shortage alarm signal; and when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold, the current operating power of the booster pump 7 is the same as the maximum operating power, and the liquid level of the heat exchange liquid is not lower than the preset liquid level height alarm threshold, generating a booster pump fault alarm signal.
Specifically, the flow meter 5 detects the heat exchange liquid flow value in the heat exchange main pipe in real time, and uploads the heat exchange liquid flow value in the heat exchange main pipe to the controller 16, and when the heat exchange liquid flow value in the heat exchange main pipe is lower than a preset flow alarm threshold, it indicates that the current heat exchange liquid flow value is too small and needs to be increased. Therefore, the controller 16 controls the booster pump 7 to increase the operation power, increase the flow rate in the circuit, and ensure the normal operation of the heat dissipation system. Similarly, when the pressure pump 7 runs at full power, if the heat exchange liquid flow value in the heat exchange main pipe at this moment is still lower than the alarm threshold or is 0, the liquid level of the heat exchange liquid in the heat exchange liquid box is detected through the liquid level meter 12, when the liquid level of the heat exchange liquid is lower than the alarm threshold, the charging current is reduced to the limit current value under the natural heat dissipation condition of the cable, the phenomenon that the charging gun is burnt due to the lack of the cooling liquid is avoided, the alarm signal of insufficient heat exchange liquid is generated, and the user is prompted to add the cooling liquid.
Preferably, the heat exchange main pipe is also provided with an outlet temperature sensor 8 and a return temperature sensor 11; the radiator comprises a radiating fan 9; the outlet temperature sensor 8 and the return temperature sensor 11 are located on the outlet side and the return side of the radiator, respectively.
The outlet temperature sensor 8 is used for detecting the outlet temperature of the radiator and sending the outlet temperature to the controller 16; the return temperature sensor 11 is used for detecting the return temperature of the radiator and sending the return temperature to the controller 16; the controller 16 is configured to receive an outlet temperature of the radiator and a return temperature of the radiator, and generate a cooling fan control signal and send the cooling fan control signal to the cooling fan 9 when a difference temperature between the outlet temperature of the radiator and the return temperature of the radiator is smaller than a preset difference temperature alarm threshold; wherein the cooling fan control signal is used to trigger the cooling fan 9 to increase the operating power.
Specifically, through export temperature sensor 8 and return temperature sensor 11, real-time detection surveys the export temperature of radiator and surveys the return temperature of radiator, both subtract back the back and obtain the temperature difference value, the difference temperature between the export temperature of radiator and the return temperature of radiator promptly, when the temperature difference value is less than preset difference temperature warning threshold value, show that the radiator ability at this moment is not enough, radiator fan 9's operating power in the increase radiator, strengthen the heat-sinking capability of radiator with this, ensure that the condition that satisfies the heat dissipation demand reduces radiator fan 9 consumption and noise.
Preferably, the radiator further comprises a fan detection device 10, wherein the fan detection device 10 is configured to detect a working state of the cooling fan 9, and when the working state of the cooling fan 9 fails, generate a cooling fan failure signal and send the cooling fan failure signal to the controller 16; the controller 16 is configured to receive a cooling fan failure signal, generate a first charging module control signal and send the first charging module control signal to the charging module 14 in response to the cooling fan failure signal, and generate a cooling fan failure warning signal.
Specifically, set up fan detection device 10, through fan detection device 10 real-time detection radiator fan 9 state, when radiator fan 9 trouble, reduce charging current to the limit current value under the cable nature heat dissipation condition, simultaneously, generate radiator fan trouble alarm signal, the suggestion user carries out radiator fan 9's maintenance.
Preferably, the gun head comprises a positive terminal 1 and a negative terminal 2, wherein the positive terminal 1 is provided with a positive terminal 1 temperature sensor, and the negative terminal 2 is provided with a negative terminal 2 temperature sensor.
The positive terminal 1 temperature sensor is used for detecting a positive terminal 1 temperature value and sending the positive terminal 1 temperature value to the controller 16; the negative terminal 2 temperature sensor is used for detecting a negative terminal 2 temperature value and sending the negative terminal 2 temperature value to the controller 16; the controller 16 is configured to receive the positive terminal 1 temperature value and the negative terminal 2 temperature value, and generate a second charging module control signal and send the second charging module control signal to the charging module 14 when at least one of the positive terminal 1 temperature value and the negative terminal 2 temperature value is higher than a preset first temperature alarm threshold; wherein the second charging module control signal is used to trigger the charging module 14 to reduce the current charging current value.
Specifically, the temperature value of the positive terminal 1 and the temperature value of the negative terminal 2 are detected in real time through the temperature sensor of the positive terminal 1 and the temperature sensor of the negative terminal 2, when at least one of the temperature value of the positive terminal 1 and the temperature value of the negative terminal 2 is higher than a preset first temperature alarm threshold, it is indicated that the charging current exceeds the load under the current condition, the current charging current value needs to be reduced, it is ensured that the temperature value of the positive terminal 1 and the temperature value of the negative terminal 2 are both lower than the first temperature alarm threshold, if the charging current is continuously reduced and the temperature is continuously higher than the first temperature alarm threshold, the charging is stopped, namely the current charging current value is reduced to 0, it is ensured that the charging gun is charged at a low current or stopped under an aging or abnormal state, and safety accidents such as melting or firing of the charging gun under the aging or abnormal state are avoided.
In addition, the inventor finds that in cold conditions, the liquid cooling charging gun is hard like iron after being frozen, and is difficult to bend or even cannot bend, so that the normal charging requirement of a vehicle owner is seriously influenced.
Therefore, preferably, the heat exchange main pipe is further provided with a flow meter 5 and a heat exchange liquid tank, a heater 13 is provided in the heat exchange liquid tank, and the heater 13 is connected to the controller 16. The controller 16 is further configured to generate a heater control signal and send the heater control signal to the heater 13 when at least one of the temperature value of the positive terminal 1 and the temperature value of the negative terminal 2 is lower than a preset second temperature alarm threshold value, and generate a pressurizing pump starting signal to the pressurizing pump 7; wherein, the heater control signal is used for triggering the heater 13 to start, and the pressurizing pump starting signal is used for triggering the pressurizing pump 7 to start.
Specifically, when ambient temperature is lower, give the heat transfer liquid heating through starting up heater 13 for the heat transfer liquid after the heating flows in cooling system, softens liquid cooling rifle cable 4 that charges with this, ensures that under the low temperature environment, the rifle that charges plug in-process crooked degree of difficulty reduces, and the customer of being convenient for uses.
Preferably, the liquid-cooling charging gun system further comprises a cloud server 15 and a mobile terminal, and the controller 16 and the mobile terminal are both connected with the cloud server 15; the controller 16 and the mobile terminal perform information interaction through the cloud server 15.
Specifically, various alarm signals, such as an insufficient pressure alarm signal, an insufficient heat exchange liquid alarm signal, and a fault alarm signal of the heat dissipation fan, may be sent to each mobile terminal, such as a mobile phone, a tablet, etc., through the cloud server 15 in time, so as to inform a user or a maintenance worker in time and handle the alarm signal in time, thereby preventing subsequent accidents from occurring.
In another embodiment of the present invention, a charging control method based on a liquid-cooled charging gun system is provided, where the liquid-cooled charging gun system may be the liquid-cooled charging gun system in the above-mentioned embodiment, and specifically, the charging control method includes the following steps: the method comprises the steps of obtaining the pressure of heat exchange liquid of a heat dissipation main pipe of the liquid-cooling charging gun and the current operating power of a pressurizing pump 7, and increasing the operating power of the pressurizing pump 7 of the liquid-cooling charging gun when the pressure of the heat exchange liquid is lower than a preset pressure alarm threshold; when the pressure of the heat exchange liquid is lower than a preset pressure alarm threshold value and the current running power of the pressurizing pump 7 is the same as the maximum running power, the charging current value of the liquid-cooling charging gun is reduced to the limit current value of the cable 4 of the liquid-cooling charging gun under the natural heat dissipation condition.
Preferably, the method also comprises the following steps, and the following steps can be partially executed or completely executed:
and when the pressure of the heat exchange liquid is lower than a preset pressure alarm threshold value and the current operation power of the pressurizing pump 7 is the same as the maximum operation power, generating an insufficient pressure alarm signal.
Acquiring a heat exchange liquid flow value of a heat dissipation main pipe of the liquid-cooled charging gun and a heat exchange liquid level in a heat exchange liquid tank, and increasing the operating power of a pressurizing pump 7 of the liquid-cooled charging gun when the heat exchange liquid flow value is lower than a preset flow alarm threshold; when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold value and the current running power of the booster pump 7 is the same as the maximum running power, reducing the charging current value of the liquid-cooled charging gun to the limit current value of the cable 4 of the liquid-cooled charging gun under the natural heat dissipation condition; when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold value and the liquid level of the heat exchange liquid is lower than a preset liquid level height alarm threshold value, generating a heat exchange liquid shortage alarm signal; and when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold, the current operating power of the booster pump 7 is the same as the maximum operating power, and the liquid level of the heat exchange liquid is not lower than the preset liquid level height alarm threshold, generating a booster pump fault alarm signal.
And acquiring the outlet temperature of the liquid cooling charging gun radiator and the return temperature of the radiator, and increasing the operating power of the liquid cooling charging gun cooling fan 9 when the difference temperature between the outlet temperature of the radiator and the return temperature of the radiator is smaller than a preset difference temperature alarm threshold.
And acquiring a fault signal of a cooling fan of the liquid cooling charging gun, responding to the fault signal of the cooling fan, reducing the charging current value of the liquid cooling charging gun to the limit current value of the cable 4 of the liquid cooling charging gun under the natural cooling condition, and generating a fault alarm signal of the cooling fan.
Acquiring a positive terminal 1 temperature value and a negative terminal 2 temperature value of a gun head of the liquid-cooling charging gun, and reducing the current charging current value of the liquid-cooling charging gun when at least one of the positive terminal 1 temperature value and the negative terminal 2 temperature value is higher than a preset first temperature alarm threshold value; and when at least one of the temperature value of the positive terminal 1 and the temperature value of the negative terminal 2 is lower than a preset second temperature alarm threshold value, starting the pressurizing pump 7 and a heater 13 arranged in a heat exchange liquid tank of the liquid cooling charging gun.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. A liquid cooling charging gun system is characterized by comprising a cable (4), a heat exchange main pipe, a gun head and a controller (16);
one end of the cable (4) is connected with the charging module (14), and the other end of the cable is connected with the gun head; a heat exchange branch pipe (6) is arranged in the cable (4), the heat exchange branch pipe (6) is connected with the heat exchange main pipe, and heat exchange liquid is filled in the heat exchange branch pipe (6) and the heat exchange main pipe; the heat exchange main pipe is provided with a radiator, a pressure pump (7) and a pressure sensor (3), the pressure pump (7) and the pressure sensor (3) are connected with one end of a controller (16), and the other end of the controller (16) is connected with a charging module (14);
the pressure sensor (3) is used for detecting the pressure of the heat exchange liquid of the heat exchange main pipe and sending the pressure to the controller (16);
the controller (16) is used for receiving the pressure of the heat exchange liquid, and generating a first pressurizing pump control signal and sending the signal to the pressurizing pump (7) when the pressure of the heat exchange liquid is lower than a preset pressure alarm threshold; the system is also used for receiving the current operating power of the pressure pump (7), and when the pressure of the heat exchange fluid is lower than a preset pressure alarm threshold and the current operating power of the pressure pump (7) is the same as the maximum operating power, generating a first charging module control signal and sending the first charging module control signal to the charging module (14);
the first pressure pump control signal is used for triggering the pressure pump (7) to increase the running power;
the first charging module control signal is used for triggering the charging module (14) to reduce the charging current value to the quota current value under the natural heat radiation condition of the cable (4).
2. The liquid-cooled charging gun system according to claim 1, characterized in that the controller (16) is further configured to generate an under-pressure warning signal when the heat transfer liquid pressure is below a preset pressure warning threshold and the current operating power of the pressurizing pump (7) is the same as the maximum operating power.
3. The liquid-cooled charging gun system according to claim 1, wherein the heat exchange main pipe is further provided with a flow meter (5) and a heat exchange liquid tank, a liquid level meter (12) is arranged in the heat exchange liquid tank, and the flow meter (5) and the liquid level meter (12) are both connected with the controller (16);
the flowmeter (5) is used for detecting the flow value of the heat exchange liquid in the heat exchange main pipe and sending the flow value to the controller (16);
the liquid level meter (12) is used for detecting the liquid level of the heat exchange liquid in the heat exchange liquid tank and sending the liquid level to the controller (16);
the controller (16) is also used for receiving the flow value and the liquid level of the heat exchange liquid; when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold value, generating a first pressurizing pump control signal and sending the first pressurizing pump control signal to a pressurizing pump (7);
when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold value and the current operation power of the booster pump (7) is the same as the maximum operation power, generating a first charging module control signal and sending the first charging module control signal to a charging module (14);
when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold value and the liquid level of the heat exchange liquid is lower than a preset liquid level height alarm threshold value, generating a heat exchange liquid shortage alarm signal;
and when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold, the current operating power of the booster pump (7) is the same as the maximum operating power, and the liquid level of the heat exchange liquid is not lower than the preset liquid level height alarm threshold, generating a booster pump fault alarm signal.
4. The liquid-cooled charging gun system of claim 1, wherein the heat exchange main pipe is further provided with an outlet temperature sensor (8) and a return temperature sensor (11); the radiator comprises a heat radiation fan (9); the outlet temperature sensor (8) and the return temperature sensor (11) are respectively positioned on the outlet side and the return side of the radiator;
the outlet temperature sensor (8) is used for detecting the outlet temperature of the radiator and sending the outlet temperature to the controller (16);
the return temperature sensor (11) is used for detecting the return temperature of the radiator and sending the return temperature to the controller (16);
the controller (16) is used for receiving the outlet temperature of the radiator and the return temperature of the radiator, and generating a control signal of the cooling fan and sending the control signal to the cooling fan (9) when the difference temperature between the outlet temperature of the radiator and the return temperature of the radiator is smaller than a preset difference temperature alarm threshold;
wherein the cooling fan control signal is used for triggering the cooling fan (9) to increase the running power.
5. The liquid-cooled charging gun system according to claim 4, wherein the heat sink further comprises a fan detection device (10), the fan detection device (10) is configured to detect an operating state of the heat dissipation fan (9), and when the operating state of the heat dissipation fan (9) fails, generate a heat dissipation fan failure signal and send the heat dissipation fan failure signal to the controller (16);
the controller (16) is used for receiving a cooling fan fault signal, responding to the cooling fan fault signal, generating a first charging module control signal and sending the first charging module control signal to the charging module (14), and generating a cooling fan fault warning signal.
6. The liquid-cooled charging gun system according to claim 1, wherein the gun head comprises a positive terminal (1) and a negative terminal (2), wherein a positive terminal (1) temperature sensor is arranged on the positive terminal (1), and a negative terminal (2) temperature sensor is arranged on the negative terminal (2);
the positive terminal (1) temperature sensor is used for detecting a positive terminal (1) temperature value and sending the positive terminal (1) temperature value to the controller (16);
the negative terminal (2) temperature sensor is used for detecting a negative terminal (2) temperature value and sending the negative terminal (2) temperature value to the controller (16);
the controller (16) is used for receiving the temperature value of the positive terminal (1) and the temperature value of the negative terminal (2), and generating a second charging module control signal and sending the second charging module control signal to the charging module (14) when at least one of the temperature value of the positive terminal (1) and the temperature value of the negative terminal (2) is higher than a preset first temperature alarm threshold;
the second charging module control signal is used for triggering the charging module (14) to reduce the current charging current value.
7. The liquid-cooled charging gun system according to claim 6, wherein the heat exchange main pipe is further provided with a flow meter (5) and a heat exchange liquid tank, a heater (13) is arranged in the heat exchange liquid tank, and the heater (13) is connected with the controller (16);
the controller (16) is also used for generating a heater control signal and sending the heater control signal to the heater (13) and generating a pressurizing pump starting signal to the pressurizing pump (7) when at least one of the temperature value of the positive electrode terminal (1) and the temperature value of the negative electrode terminal (2) is lower than a preset second temperature alarm threshold value;
wherein the heater control signal is used for triggering the heater (13) to start; the pressurizing pump starting signal is used for triggering the pressurizing pump (7) to start.
8. The liquid-cooled charging gun system of claim 1, further comprising a cloud server (15) and a mobile terminal, wherein the controller (16) and the mobile terminal are both connected to the cloud server (15);
the controller (16) and the mobile terminal perform information interaction through the cloud server (15).
9. A charging control method based on a liquid cooling charging gun system is characterized by comprising the following steps:
the method comprises the steps of obtaining the pressure of heat exchange liquid of a heat dissipation main pipe of the liquid-cooling charging gun and the current operating power of a pressurizing pump (7), and increasing the operating power of the pressurizing pump (7) of the liquid-cooling charging gun when the pressure of the heat exchange liquid is lower than a preset pressure alarm threshold;
when the pressure of the heat exchange liquid is lower than a preset pressure alarm threshold value and the current running power of the pressurizing pump (7) is the same as the maximum running power, the charging current value of the liquid-cooling charging gun is reduced to the limit current value of the cable (4) of the liquid-cooling charging gun under the natural heat dissipation condition.
10. The charging control method based on the liquid-cooled charging gun system according to claim 9, characterized by further comprising the steps of:
when the pressure of the heat exchange liquid is lower than a preset pressure alarm threshold value and the current operation power of the pressurizing pump (7) is the same as the maximum operation power, generating an insufficient pressure alarm signal;
the method comprises the steps that a heat exchange liquid flow value of a heat dissipation main pipe of the liquid-cooled charging gun and a heat exchange liquid level in a heat exchange liquid tank are obtained, and when the heat exchange liquid flow value is lower than a preset flow alarm threshold value, the operating power of a pressurizing pump (7) of the liquid-cooled charging gun is increased; when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold value and the current running power of the pressurizing pump (7) is the same as the maximum running power, reducing the charging current value of the liquid-cooled charging gun to the limit current value of a cable (4) of the liquid-cooled charging gun under a natural heat dissipation condition; when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold value and the liquid level of the heat exchange liquid is lower than a preset liquid level height alarm threshold value, generating a heat exchange liquid shortage alarm signal; when the flow value of the heat exchange liquid is lower than a preset flow alarm threshold value, the current operating power of the booster pump (7) is the same as the maximum operating power, and the liquid level of the heat exchange liquid is not lower than a preset liquid level height alarm threshold value, generating a booster pump fault alarm signal;
acquiring the outlet temperature of a radiator of the liquid cooling charging gun and the return temperature of the radiator, and increasing the operating power of a heat radiating fan (9) of the liquid cooling charging gun when the difference temperature between the outlet temperature of the radiator and the return temperature of the radiator is smaller than a preset difference temperature alarm threshold;
acquiring a fault signal of a cooling fan of the liquid cooling charging gun, responding to the fault signal of the cooling fan, reducing the charging current value of the liquid cooling charging gun to the limit current value of a cable (4) of the liquid cooling charging gun under a natural cooling condition, and generating a fault alarm signal of the cooling fan;
acquiring a temperature value of an anode terminal (1) and a temperature value of a cathode terminal (2) of a gun head of the liquid-cooled charging gun, and reducing the current charging current value of the liquid-cooled charging gun when at least one of the temperature value of the anode terminal (1) and the temperature value of the cathode terminal (2) is higher than a preset first temperature alarm threshold value; when at least one of the temperature value of the positive terminal (1) and the temperature value of the negative terminal (2) is lower than a preset second temperature alarm threshold value, the pressurizing pump (7) and a heater (13) arranged in a heat exchange liquid tank of the liquid cooling charging gun are started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110858297.5A CN113370814A (en) | 2021-07-28 | 2021-07-28 | Liquid cooling charging gun system and charging control method based on same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110858297.5A CN113370814A (en) | 2021-07-28 | 2021-07-28 | Liquid cooling charging gun system and charging control method based on same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113370814A true CN113370814A (en) | 2021-09-10 |
Family
ID=77583128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110858297.5A Withdrawn CN113370814A (en) | 2021-07-28 | 2021-07-28 | Liquid cooling charging gun system and charging control method based on same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113370814A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114030371A (en) * | 2021-11-15 | 2022-02-11 | 浙江吉利控股集团有限公司 | Charging gun heat management device and method and charging pile |
| CN114759522A (en) * | 2022-06-15 | 2022-07-15 | 广东首航智慧新能源科技有限公司 | Over-temperature protection method and device for air-cooled power supply and power supply |
| US11641119B2 (en) * | 2018-04-18 | 2023-05-02 | ABB E-mobility B.V. | Detecting a bad contact of a charging cable |
| WO2024037232A1 (en) * | 2022-08-16 | 2024-02-22 | 武汉蔚来能源有限公司 | Charging terminal |
-
2021
- 2021-07-28 CN CN202110858297.5A patent/CN113370814A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11641119B2 (en) * | 2018-04-18 | 2023-05-02 | ABB E-mobility B.V. | Detecting a bad contact of a charging cable |
| CN114030371A (en) * | 2021-11-15 | 2022-02-11 | 浙江吉利控股集团有限公司 | Charging gun heat management device and method and charging pile |
| CN114759522A (en) * | 2022-06-15 | 2022-07-15 | 广东首航智慧新能源科技有限公司 | Over-temperature protection method and device for air-cooled power supply and power supply |
| WO2024037232A1 (en) * | 2022-08-16 | 2024-02-22 | 武汉蔚来能源有限公司 | Charging terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113370814A (en) | Liquid cooling charging gun system and charging control method based on same | |
| CN103441558B (en) | Charge control method and electric automobile car-mounted terminal | |
| JP2014502486A (en) | Battery enhancement system and method | |
| CN109910684A (en) | A kind of power battery heating system of electric vehicle and control method | |
| CN104880676A (en) | Power battery pack thermal runaway safety alarm method based on battery management system | |
| JP2011501934A (en) | Storage batteries for personal and commercial vehicles | |
| CN103580097A (en) | Method for controlling a battery system, a battery system, and motor vehicle | |
| JP2011189768A (en) | Control apparatus for hybrid vehicle | |
| EP3424123B1 (en) | A method and system for controlling a current being fed to a battery pack | |
| US20170074945A1 (en) | A method and system for monitoring the status of battery cells | |
| US20120105002A1 (en) | Method and apparatus for automated charging of electrically powered moving objects | |
| US20200290475A1 (en) | Power control device | |
| US11981217B2 (en) | System for a drive energy store of a hybrid or electric vehicle, and method for charging a drive energy store of a hybrid or electric vehicle | |
| CN106571656A (en) | Battery condition monitoring and charging management system for electric vehicle charging device | |
| CN113410982B (en) | Discharging module of charging pile system and method for executing active discharging | |
| CN113745672A (en) | Battery self-heating control method, battery self-heating device, system and vehicle | |
| CN114228572A (en) | Battery pack heating control device and method and vehicle | |
| JP6661112B2 (en) | High voltage vehicle heater and method for using vehicle regenerative power | |
| CN110758140B (en) | Control method of liquid cooling charging system for new energy automobile | |
| CN103688438B (en) | Accumulating system and the method for the state that differentiates power storage block | |
| CN210468042U (en) | Heating battery pack | |
| CN116749798A (en) | Unmanned vehicle charging and cooling system and charging and cooling method | |
| CN111002861A (en) | Voltage conversion method, device and equipment | |
| CN108815743A (en) | A kind of electric bicycle automatic fire extinguishing system and its extinguishing method | |
| CN113611947B (en) | Battery temperature control device of electric automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 710000 No. 24, Fengqi Road, small and medium-sized industrial park, Xixian New Area (energy Golden Trade Zone), Xi'an City, Shaanxi Province Applicant after: Green energy huichong Digital Technology Co.,Ltd. Applicant after: Xi'an Green Power Intelligent Control Technology Co.,Ltd. Address before: 710000 No. 24, Fengqi Road, small and medium-sized industrial park, Xixian New Area (energy Golden Trade Zone), Xi'an City, Shaanxi Province Applicant before: SHAANXI GRESGYING ELECTRONIC TECHNOLOGY Co.,Ltd. Applicant before: Xi'an Green Power Intelligent Control Technology Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211216 Address after: 710000 plant 1, yard 3, small and medium-sized industrial park, energy Jinmao District, No. 24, Fengqi Road, Fengdong new town, Xixian new area, Xi'an City, Shaanxi Province Applicant after: Green energy huichong Digital Technology Co.,Ltd. Address before: 710000 No. 24, Fengqi Road, small and medium-sized industrial park, Xixian New Area (energy Golden Trade Zone), Xi'an City, Shaanxi Province Applicant before: Green energy huichong Digital Technology Co.,Ltd. Applicant before: Xi'an Green Power Intelligent Control Technology Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210910 |
|
| WW01 | Invention patent application withdrawn after publication |