CN115230508A - Charging method and device of charging pile with cooling function - Google Patents

Charging method and device of charging pile with cooling function Download PDF

Info

Publication number
CN115230508A
CN115230508A CN202110441039.7A CN202110441039A CN115230508A CN 115230508 A CN115230508 A CN 115230508A CN 202110441039 A CN202110441039 A CN 202110441039A CN 115230508 A CN115230508 A CN 115230508A
Authority
CN
China
Prior art keywords
cooling
vehicle
charging
charged
battery
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.)
Pending
Application number
CN202110441039.7A
Other languages
Chinese (zh)
Inventor
刘璐
马学骞
王海鉴
向攀
孙智兴
郑祥斌
林肖
褚政宇
孙悦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Shengke Energy Technology Co ltd
Original Assignee
Beijing Shengke Energy Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Shengke Energy Technology Co ltd filed Critical Beijing Shengke Energy Technology Co ltd
Priority to CN202110441039.7A priority Critical patent/CN115230508A/en
Publication of CN115230508A publication Critical patent/CN115230508A/en
Pending legal-status Critical Current

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
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/65—Monitoring or controlling charging stations involving identification of vehicles or their battery types
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/302—Cooling of charging equipment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/443—Methods for charging or discharging in response to temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/635—Control systems based on ambient temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention discloses a charging method and a charging device of a charging pile with a cooling function. Fill electric pile and include power conversion module, super controller, the rifle that charges, cooling module and liquid cooling rifle, super controller of charging respectively with power conversion module, cooling module, the rifle that charges and the liquid cooling rifle is connected, power conversion module with charge the rifle and be connected, cooling module and liquid cooling rifle are connected. According to the charging method, when the communication connection between the vehicle to be charged and the charging pile is judged according to the communication information between the vehicle to be charged and the charging pile, the power conversion module is controlled to charge the battery of the vehicle to be charged through the charging gun, the cooling module is controlled to cool the battery of the vehicle to be charged through the liquid cooling gun, and when the charging is finished, the cooling module is controlled to stop working. From this, through the mode that sets up cooling module in filling electric pile, can treat the battery of charging vehicle and cool off, need not to occupy vehicle space and whole car weight, reduced vehicle cost for the vehicle can carry out high-power quick charge.

Description

Charging method and device of charging pile with cooling function
Technical Field
The invention relates to the technical field of charging piles, in particular to a charging method and a charging device of a charging pile with a cooling function.
Background
With the rapid development of electric vehicles, users have higher and higher requirements for charging time, and therefore, for the further rapid popularization of electric vehicles, the problem of long charging time of electric vehicles needs to be solved. The high-power quick charging and super quick charging functions of the charging pile become the development trend in the future.
Under the condition of carrying out high-power quick charge through filling electric pile, prior art has following problem:
when carrying out high-power quick charge, various electrochemical reaction and physical change have taken place in electric automobile's battery inside, battery system heat production power is too big, lead to producing a large amount of heats, if these heats can not obtain better giving off, will make the battery temperature rise to outside the normal operating temperature scope lead to unable high-power charging in short time, and electric automobile receives the automobile body overall arrangement from the thermal management system of taking, cost, the influence of weight and part resource, can't support the super large current and charge, therefore, for satisfying the high-power charging demand in short time, current electric automobile need design super large refrigerating capacity, need occupy vehicle space and whole car weight, lead to the cost higher.
Disclosure of Invention
The invention provides a charging method of a charging pile with a cooling function, which is used for reducing the vehicle cost. The specific technical scheme is as follows.
In a first aspect, the present invention provides a charging method for a charging pile with a cooling function, where the charging pile includes a power conversion module, a super charging controller, a charging gun, a cooling module, and a liquid cooling gun, the super charging controller is connected to the power conversion module, the cooling module, the charging gun, and the liquid cooling gun, respectively, the power conversion module is connected to the charging gun, and the cooling module is connected to the liquid cooling gun, and the method is applied to the super charging controller, and the method includes:
acquiring authentication information of a vehicle to be charged, and judging whether the vehicle to be charged has a super-charging function according to the authentication information, wherein the super-charging function is a function of charging with current larger than preset power;
if the vehicle has the function of overcharging, judging whether first handshake information sent by the vehicle to be charged is received;
if so, acquiring battery information of the vehicle to be charged, and judging whether the temperature of the battery is higher than a preset battery temperature threshold value or not according to the battery information;
if the charging position is higher than the preset charging position, obtaining cooling state information of the vehicle to be charged, and judging whether the vehicle to be charged supports external cooling of the charging pile according to the cooling state information;
if so, acquiring the connection state information of the liquid cooling gun, and judging whether the liquid cooling gun is successfully connected with the vehicle to be charged according to the connection state information;
if the connection is successful, liquid cooling state detection information is obtained, and whether the cooling module works normally or not is judged according to the liquid cooling state detection information;
if the charging pile is normal, obtaining communication information between the vehicle to be charged and the charging pile, and judging whether the vehicle to be charged and the charging pile are in communication connection or not according to the communication information;
if the power conversion module is in communication connection with the battery of the vehicle to be charged, the power conversion module is controlled to charge the battery of the vehicle to be charged through the charging gun, the cooling module is controlled to cool the battery of the vehicle to be charged through the liquid cooling gun, and when the charging is finished, the cooling module is controlled to stop working.
Optionally, the cooling module includes a first compressor, a first condenser, a first cooling fan, a radiator, a first refrigerant pressure sensor, a first plate heat exchanger, an electronic three-way valve, a first water pump, a first liquid replenishing kettle, a first liquid level sensor, a first water temperature sensor, a refrigerant pipeline, and a first cooling liquid pipeline;
an outlet of the first compressor is connected with an inlet of the first condenser, an air suction port of the first compressor is connected with a refrigerant outlet of the first plate heat exchanger, an outlet of the first condenser is connected with a refrigerant inlet of the first plate heat exchanger through a first outlet pipeline, the first refrigerant pressure sensor is arranged in the first outlet pipeline, an outlet of the radiator is connected with an inlet of the first liquid supplementing kettle, an inlet of the radiator is connected with a first outlet of the electronic three-way valve, a water path inlet of the first plate heat exchanger is connected with a second outlet of the electronic three-way valve, a water path outlet of the first plate heat exchanger is connected with an inlet of the first liquid supplementing kettle, an inlet of the first liquid cooling pump is connected with the liquid gun, an outlet of the first liquid cooling pump is connected with an inlet of the electronic three-way valve, the liquid cooling gun is connected with an outlet of the first liquid supplementing kettle through a second outlet pipeline, the first water temperature sensor is arranged in the second water outlet pipeline, the first liquid level sensor is arranged in the first liquid supplementing kettle, cooling liquid is filled in the first liquid supplementing kettle, and the first cooling liquid supplementing kettle is arranged in parallel with the first condenser;
the overcharge controller is respectively connected with the first liquid level sensor, the first compressor, the first cooling fan, the first refrigerant pressure sensor, the first water temperature sensor, the first water pump and the electronic three-way valve;
the step of controlling the cooling module to cool the battery of the vehicle to be charged through the liquid cooling gun, and controlling the cooling module to stop working when charging is finished comprises the following steps:
acquiring the ambient temperature around the vehicle to be charged, and judging whether the ambient temperature is less than a preset temperature threshold value or not;
if yes, controlling a first outlet of the electronic three-way valve to be communicated with an inlet of the radiator, controlling the first water pump and the first cooling fan to operate, cooling a battery of the vehicle to be charged through the liquid cooling gun, and controlling the first water pump and the first cooling fan to stop operating when charging is finished.
Optionally, after the step of determining whether the ambient temperature is less than the preset temperature threshold, the charging method for the charging pile with the cooling function further includes:
and if the ambient temperature is not less than a preset temperature threshold value, controlling a second outlet of the electronic three-way valve to be connected with a waterway inlet of the first plate type heat exchanger, controlling the first water pump, the first compressor and the first cooling fan to operate to cool a battery of the vehicle to be charged through the liquid cooling gun, and controlling the first water pump, the first compressor and the first cooling fan to stop operating when charging is finished.
Optionally, after the step of determining whether the temperature of the battery is higher than the preset battery temperature threshold according to the battery information, the charging method for the charging pile with the cooling function further includes:
and if the temperature of the battery is not higher than a preset battery temperature threshold value, controlling the power conversion module to intermittently output a pulse signal to the battery of the vehicle to be charged through the charging gun to heat and charge the battery of the vehicle to be charged, wherein the frequency of the pulse signal is greater than the preset frequency.
Optionally, the cooling module includes a second compressor, a second condenser, a second cooling fan, a second refrigerant pressure sensor, a second plate heat exchanger, a second water pump, a second liquid replenishing kettle, a second liquid level sensor, a second water temperature sensor, and a second cooling liquid pipeline;
an outlet of the second compressor is connected with an inlet of the second condenser, an air suction port of the second compressor is connected with a refrigerant outlet of the second plate heat exchanger, an outlet of the second condenser is connected with a refrigerant inlet of the second plate heat exchanger through a third outlet pipeline, the second refrigerant pressure sensor is arranged in the third outlet pipeline, a water path inlet of the second plate heat exchanger is connected with an outlet of the second water pump, a water path outlet of the second plate heat exchanger is connected with an inlet of the second liquid replenishing kettle, an inlet of the second water pump is connected with the liquid cooling gun, the liquid cooling gun is connected with an outlet of the second liquid replenishing kettle through a fourth outlet pipeline, the second water temperature sensor is arranged in the fourth water outlet pipeline, the second liquid level sensor is arranged in the second liquid replenishing kettle, cooling liquid is filled in the second liquid replenishing kettle, and the second cooling fan is arranged in parallel with the second condenser;
the overcharge controller is respectively connected with the second liquid level sensor, the second compressor, the second cooling fan, the second refrigerant pressure sensor, the second water temperature sensor and the second water pump;
the step of controlling the cooling module to cool the battery of the vehicle to be charged through the liquid cooling gun, and controlling the cooling module to stop working when charging is finished comprises the following steps:
and controlling the second water pump, the second compressor and the second cooling fan to operate, cooling a battery of the vehicle to be charged through the liquid cooling gun, and controlling the second water pump, the second compressor and the second cooling fan to stop operating when charging is finished.
Optionally, the charging pile further comprises an energy storage device, and the energy storage device is connected with the power conversion module.
Optionally, the charging method of the charging pile with the cooling function further includes:
the method comprises the steps of collecting a first resistance signal of the first liquid level sensor, and outputting alarm information when the first resistance signal is smaller than a preset resistance threshold value.
Optionally, after the step of determining whether the vehicle to be charged has the overcharge function according to the authentication information, the charging method for the charging pile with the cooling function further includes:
if the vehicle does not have the function of overcharging, judging whether second handshake information sent by the vehicle to be charged is received;
if the charging pile is received, acquiring first state information of the charging pile, and judging whether the charging pile works normally or not according to the first state information of the charging pile;
and if the charging gun is normal, controlling the power conversion module to charge the battery of the vehicle to be charged through the charging gun.
Optionally, after the step of determining whether the vehicle to be charged supports external cooling of the charging pile according to the cooling state information, the charging method for the charging pile with the cooling function further includes:
when the vehicle to be charged does not support external cooling of the charging pile, second state information of the charging pile is obtained, and whether the charging pile works normally or not is judged according to the second state information of the charging pile;
and if the charging gun is normal, controlling the power conversion module to charge the battery of the vehicle to be charged through the charging gun.
In a second aspect, the present invention provides a charging apparatus for a charging pile with a cooling function, where the charging pile includes a power conversion module, a super charging controller, a charging gun, a cooling module, and a liquid cooling gun, the super charging controller is connected to the power conversion module, the cooling module, the charging gun, and the liquid cooling gun, respectively, the power conversion module is connected to the charging gun, the cooling module is connected to the liquid cooling gun, and the apparatus is applied to the super charging controller, and includes:
the system comprises an authentication information acquisition module, a first judgment module and a second judgment module, wherein the authentication information acquisition module is used for acquiring authentication information of a vehicle to be charged, judging whether the vehicle to be charged has a super-charging function according to the authentication information, and if so, triggering the first judgment module, wherein the super-charging function is a function of charging with current larger than preset power;
the first judging module is used for judging whether first handshake information sent by the vehicle to be charged is received or not, and if so, the battery information acquiring module is triggered;
the battery information acquisition module is used for acquiring battery information of the vehicle to be charged, judging whether the temperature of the battery is higher than a preset battery temperature threshold value or not according to the battery information, and if so, triggering the cooling state information acquisition module;
the cooling state information acquisition module is used for acquiring cooling state information of the vehicle to be charged, judging whether the vehicle to be charged supports external cooling of the charging pile according to the cooling state information, and if so, triggering the connection state information acquisition module;
the connection state information acquisition module is used for acquiring the connection state information of the liquid cooling gun, judging whether the liquid cooling gun is successfully connected with the vehicle to be charged according to the connection state information, and if so, triggering the liquid cooling state detection information acquisition module;
the liquid cooling state detection information acquisition module is used for acquiring liquid cooling state detection information, judging whether the cooling module normally works according to the liquid cooling state detection information, and if so, triggering the communication information acquisition module;
the communication information acquisition module is used for acquiring communication information between the vehicle to be charged and the charging pile, judging whether the vehicle to be charged and the charging pile are in communication connection or not according to the communication information, and if so, triggering a second control module;
the second control module is used for controlling the power conversion module to charge the battery of the vehicle to be charged through the charging gun, controlling the cooling module to cool the battery of the vehicle to be charged through the liquid cooling gun, and controlling the cooling module to stop working when charging is finished.
Optionally, the cooling module includes a first compressor, a first condenser, a first cooling fan, a radiator, a first refrigerant pressure sensor, a first plate heat exchanger, an electronic three-way valve, a first water pump, a first liquid supplement kettle, a first liquid level sensor, a first water temperature sensor, a refrigerant pipeline, and a first cooling liquid pipeline;
an outlet of the first compressor is connected with an inlet of the first condenser, an air suction port of the first compressor is connected with a refrigerant outlet of the first plate heat exchanger, an outlet of the first condenser is connected with a refrigerant inlet of the first plate heat exchanger through a first outlet pipeline, the first refrigerant pressure sensor is arranged in the first outlet pipeline, an outlet of the radiator is connected with an inlet of the first liquid supplementing kettle, an inlet of the radiator is connected with a first outlet of the electronic three-way valve, a water path inlet of the first plate heat exchanger is connected with a second outlet of the electronic three-way valve, a water path outlet of the first plate heat exchanger is connected with an inlet of the first liquid supplementing kettle, an inlet of the first liquid cooling pump is connected with the liquid gun, an outlet of the first liquid cooling pump is connected with an inlet of the electronic three-way valve, the liquid cooling gun is connected with an outlet of the first liquid supplementing kettle through a second outlet pipeline, the first water temperature sensor is arranged in the second water outlet pipeline, the first liquid level sensor is arranged in the first liquid supplementing kettle, cooling liquid is filled in the first liquid supplementing kettle, and the first cooling liquid supplementing kettle is arranged in parallel with the first condenser;
the overcharge controller is respectively connected with the first liquid level sensor, the first compressor, the first cooling fan, the first refrigerant pressure sensor, the first water temperature sensor, the first water pump and the electronic three-way valve;
the second control module is specifically configured to:
acquiring the ambient temperature around the vehicle to be charged, and judging whether the ambient temperature is less than a preset temperature threshold value or not;
if yes, controlling a first outlet of the electronic three-way valve to be communicated with an inlet of the radiator, controlling the first water pump and the first cooling fan to operate, cooling a battery of the vehicle to be charged through the liquid cooling gun, and controlling the first water pump and the first cooling fan to stop operating when charging is finished.
Optionally, the charging device for a charging pile with a cooling function further includes a third control module, where the third control module is configured to control the second outlet of the electronic three-way valve to be connected to the water inlet of the first plate heat exchanger after determining whether the ambient temperature is less than the preset temperature threshold, and control the first water pump, the first compressor, and the first cooling fan to operate to cool the battery of the vehicle to be charged through the liquid cooling gun, and control the first water pump, the first compressor, and the first cooling fan to stop operating when charging is finished.
Optionally, the charging device for a charging pile with a cooling function further includes a first control module, where the first control module is configured to control the power conversion module to intermittently output a pulse signal to the battery of the vehicle to be charged through the charging gun to heat and charge the battery of the vehicle to be charged if the temperature of the battery is not higher than a preset battery temperature threshold after determining whether the temperature of the battery is higher than the preset battery temperature threshold according to the battery information, where a frequency of the pulse signal is greater than a preset frequency.
Optionally, the cooling module includes a second compressor, a second condenser, a second cooling fan, a second refrigerant pressure sensor, a second plate heat exchanger, a second water pump, a second liquid replenishing kettle, a second liquid level sensor, a second water temperature sensor, and a second cooling liquid pipeline;
an outlet of the second compressor is connected with an inlet of the second condenser, an air suction port of the second compressor is connected with a refrigerant outlet of the second plate heat exchanger, an outlet of the second condenser is connected with a refrigerant inlet of the second plate heat exchanger through a third outlet pipeline, the second refrigerant pressure sensor is arranged in the third outlet pipeline, a water path inlet of the second plate heat exchanger is connected with an outlet of the second water pump, a water path outlet of the second plate heat exchanger is connected with an inlet of the second liquid replenishing kettle, an inlet of the second water pump is connected with the liquid cooling gun, the liquid cooling gun is connected with an outlet of the second liquid replenishing kettle through a fourth outlet pipeline, the second water temperature sensor is arranged in the fourth water outlet pipeline, the second liquid level sensor is arranged in the second liquid replenishing kettle, cooling liquid is filled in the second liquid replenishing kettle, and the second cooling fan is arranged in parallel with the second condenser;
the overcharge controller is respectively connected with the second liquid level sensor, the second compressor, the second cooling fan, the second refrigerant pressure sensor, the second water temperature sensor and the second water pump;
the second control module is specifically configured to:
and controlling the second water pump, the second compressor and the second cooling fan to operate, cooling a battery of the vehicle to be charged through the liquid cooling gun, and controlling the second water pump, the second compressor and the second cooling fan to stop operating when charging is finished.
Optionally, the charging pile further comprises an energy storage device, and the energy storage device is connected with the power conversion module.
Optionally, the charging device for charging piles with a cooling function further comprises a first acquisition module, the first acquisition module is used for acquiring a first resistance signal of the first liquid level sensor, and when the first resistance signal is smaller than a preset resistance threshold value, alarm information is output.
Optionally, the charging device for a charging pile with a cooling function further includes a second determination module, where the second determination module is specifically configured to:
after judging whether the vehicle to be charged has the overcharging function according to the authentication information, if not, judging whether second handshake information sent by the vehicle to be charged is received;
if the charging pile is received, acquiring first state information of the charging pile, and judging whether the charging pile works normally or not according to the first state information of the charging pile;
and if the charging gun is normal, controlling the power conversion module to charge the battery of the vehicle to be charged through the charging gun.
Optionally, the charging device for a charging pile with a cooling function further includes a third determination module, where the third determination module is specifically configured to:
after judging whether the vehicle to be charged supports external cooling of the charging pile according to the cooling state information, when the vehicle to be charged does not support external cooling of the charging pile, acquiring second state information of the charging pile, and judging whether the charging pile normally works according to the second state information of the charging pile;
and if the charging gun is normal, controlling the power conversion module to charge the battery of the vehicle to be charged through the charging gun.
As can be seen from the above, the charging method of the charging pile with the cooling function according to the embodiment of the present invention may obtain authentication information of a vehicle to be charged, and determine whether the vehicle to be charged has a overcharge function according to the authentication information, where the overcharge function is a function of charging with a current greater than a preset power, if the vehicle to be charged has the overcharge function, determine whether first handshake information sent by the vehicle to be charged is received, if the first handshake information is received, obtain battery information of the vehicle to be charged, determine whether a temperature of the battery is higher than a preset battery temperature threshold according to the battery information, if the battery temperature is higher than the preset battery temperature threshold, obtain cooling state information of the vehicle to be charged, determine whether the vehicle to be charged supports external cooling of the charging pile according to the cooling state information, if the vehicle to be charged supports external cooling, obtain connection state information of a liquid cooling gun, determine whether a liquid cooling gun and the vehicle to be charged are successfully connected according to the connection state information, if the liquid cooling state detection information is successfully connected, obtain liquid cooling state detection information, determine whether the cooling module normally works according to the liquid cooling gun is connected, determine whether the vehicle to be charged and the charging pile to be charged is in communication with the charging gun, if the charging gun is successfully connected, control the charging gun, and control the vehicle to stop the vehicle to be charged by the charging gun, and control the vehicle to be charged through the vehicle to be charged by the liquid cooling gun. Therefore, in the embodiment of the invention, the battery of the vehicle to be charged can be cooled by arranging the cooling module in the charging pile, the vehicle space and the whole vehicle weight are not occupied, the vehicle cost is reduced, and the vehicle can be rapidly charged with high power. Of course, it is not necessary for any product or method to achieve all of the above-described advantages at the same time for practicing the invention.
The innovation points of the embodiment of the invention comprise:
1. in the embodiment of the invention, the battery of the vehicle to be charged can be cooled by arranging the cooling module in the charging pile, the vehicle space and the whole vehicle weight are not occupied, the vehicle cost is reduced, and the vehicle can be rapidly charged with high power.
2. According to the embodiment of the invention, when the temperature of the battery is not higher than the preset battery temperature threshold, the pulse signal with the frequency higher than the preset frequency is adopted to heat and charge the battery of the vehicle to be charged, and the pulse signal with the frequency higher than the preset frequency is high in heating speed, so that the vehicle can be charged quickly, and the charging speed under the low-temperature condition is improved.
3. The charging pile is arranged to comprise the cooling module, so that the vehicle does not need to be provided with a high-power battery liquid cooling system, the vehicle space and the whole vehicle weight do not need to be occupied, the whole vehicle cost can be reduced, and the problem of low utilization rate of the high-power battery liquid cooling system arranged on the vehicle is solved.
4. The charging pile is arranged to comprise the cooling module, so that the vehicle does not need to meet the requirement of high-power charging, the comfort of an air conditioner in a member cabin is not influenced completely when the air conditioner is used, and the comfort of the air conditioner in the member cabin is improved.
5. According to the embodiment of the invention, the charging pile is arranged to comprise the cooling module, so that the heat dissipation part is not arranged in the vehicle, and the noise in the vehicle is avoided.
6. The charging pile is arranged to comprise the cooling module, and the cooling module is used for cooling the battery in the high-power quick charging process, so that the control logic of a heat management system of the vehicle and the control logic of a vehicle air conditioner are not required to be coupled, the calibration period is short, and the development period and the development cost of the whole vehicle are reduced.
7. The charging pile comprises the cooling module, the cooling module is used for uniformly cooling the battery in the high-power quick charging process, the thermal runaway accident is prevented, the temperature difference in the battery pack is reduced, the formation of a local hot area is inhibited, the battery at a high-temperature position is prevented from being attenuated too fast, the overall service life of the battery pack is shortened, the performance of the battery pack is optimal, the efficiency of the battery pack is highest, and potential safety hazards caused by the thermal runaway can be eliminated.
8. In the embodiment of the invention, the charging pile comprises the liquid cooling gun, so that the charging gun can work in a safe range in the charging process.
9. Through the mode that sets up energy storage equipment, when carrying out high-power quick charge, can provide the electric energy, avoid causing the influence to the commercial power.
10. According to the embodiment of the invention, when the temperature of the battery is not higher than the preset battery temperature threshold, the pulse signal with the frequency higher than the preset frequency is adopted to heat and charge the battery of the vehicle to be charged, and the pulse signal with the frequency higher than the preset frequency, namely the high-frequency pulse signal, has high heating speed, so that the aim of quick charging can be achieved, the battery is preheated when the temperature of the battery is lower, the temperature of the battery is improved, the charging safety at low temperature is ensured, and the charging speed is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is to be understood that the drawings in the following description are merely exemplary of some embodiments of the invention. For a person skilled in the art, without inventive effort, further figures can be obtained from these figures.
Fig. 1 is a schematic structural diagram of a charging pile with a cooling function according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a charging method for a charging pile with a cooling function according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a cooling module according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a cooling module according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of pulse charging provided by an embodiment of the present invention;
fig. 6 is a schematic signal transmission diagram of an overcharge controller according to an embodiment of the present invention;
fig. 7 is another schematic flow chart of a charging method of a charging pile with a cooling function according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a charging device of a charging pile with a cooling function according to an embodiment of the present invention.
In fig. 1-8, 1 power conversion module, 11DC/DC module, 2 overcharge controller, 3 charge gun, 4 cooling module, 5 liquid cooling gun, 6 communication module, 7 energy storage device, 8 metering module, 9 financial module, 10 human-machine interaction module, 41 first compressor, 42 first condenser, 43 first cooling fan, 44 radiator, 45 first refrigerant pressure sensor, 46 first plate heat exchanger, 47 electronic three-way valve, 48 first water pump, 49 first fluid infusion pot, 401 first fluid level sensor, 402 first water temperature sensor, 403 refrigerant pipeline, 404 first cooling liquid pipeline, 51 second compressor, 52 second condenser, 53 second cooling fan, 54 second refrigerant pressure sensor, 55 second plate heat exchanger, 56 second water pump, 57 second fluid infusion pot, 58 second fluid level sensor, 59 second water temperature sensor, 50 second cooling liquid pipeline.
Detailed Description
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. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that the terms "comprising" and "having" and any variations thereof in the embodiments and drawings of the present invention are intended to cover non-exclusive inclusions. A process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiment of the invention discloses a charging method and a charging device of a charging pile with a cooling function, which are used for reducing the vehicle cost. The following provides a detailed description of embodiments of the invention.
Fig. 1 is a schematic structural diagram of a charging pile with a cooling function according to an embodiment of the present invention, and referring to fig. 1, the charging pile includes a power conversion module 1, a super charging controller 2, a charging gun 3, a cooling module 4, and a liquid cooling gun 5, the super charging controller 2 is connected to the power conversion module 1, the cooling module 4, the charging gun 3, and the liquid cooling gun 5, the power conversion module 1 is connected to the charging gun 3, and the cooling module 4 is connected to the liquid cooling gun 5, where the liquid cooling gun 5 has a cooling gun head outside a battery.
Fig. 2 is a schematic flow chart of a charging method of a charging pile with a cooling function according to an embodiment of the present invention. The method is applied to the overcharge controller 2. The method specifically comprises the following steps:
s110: and acquiring authentication information of the vehicle to be charged, judging whether the vehicle to be charged has a super-charging function according to the authentication information, and if so, executing a step S120, wherein the super-charging function is a function of charging by using current larger than preset power.
When the vehicle to be charged needs to be charged, the vehicle enters the charging parking space. Because not all electric automobile all possess the super function of filling, wherein, the super function of filling is the function that charges with the electric current that is greater than preset power, and is also high-power quick charge function, consequently, fill electric pile's super charge controller and need obtain the authentication information of the vehicle that waits to charge, then judge according to the authentication information whether the vehicle that waits to charge possesses the super function of filling to carry out subsequent step according to the judged result, wherein, authentication information is the information that whether the representation vehicle has the super function of filling.
The method for acquiring the authentication information of the vehicle to be charged by the overcharge controller includes, but is not limited to, the following two methods:
firstly, the super-charging controller obtains picture information of a vehicle to be charged, and searches authentication information corresponding to the picture information from a cloud according to the picture information.
And the second method comprises the following steps: the super-charging controller obtains license plate information of a vehicle to be charged, and searches authentication information corresponding to the license plate information from the cloud according to the license plate information.
S120: and judging whether the first handshake information sent by the vehicle to be charged is received, and if so, executing step S130.
After confirming that the vehicle to be charged has the super-charging function, the charging gun is manually connected with the vehicle to be charged.
Because the handshake protocol is a network protocol for the client and the server to confirm the identities of each other, if the charging gun 3 is successfully connected with the vehicle to be charged, the vehicle to be charged can send first handshake information to the overcharge controller 2, so that the overcharge controller 2 can judge whether the charging gun 3 is successfully connected with the vehicle to be charged by judging whether the first handshake information sent by the vehicle to be charged is received, and perform subsequent steps according to the judgment result.
S130: acquiring battery information of a vehicle to be charged, judging whether the temperature of the battery is higher than a preset battery temperature threshold value according to the battery information, and if so, executing the step S140.
When first handshake information sent by the vehicle to be charged is received, the charging gun is successfully connected with the vehicle to be charged. At this time, the cooling state of the vehicle to be charged needs to be confirmed, specifically, battery information of the vehicle to be charged needs to be acquired, whether the temperature of the battery is higher than a preset battery temperature threshold value or not is judged according to the battery information, and subsequent steps are performed according to the judgment result.
The battery information at least includes a temperature of the battery, and may further include a cell voltage and a remaining charge margin in the battery.
S140: and obtaining cooling state information of the vehicle to be charged, judging whether the vehicle to be charged supports external cooling of the charging pile according to the cooling state information, and if so, executing the step S150.
When the temperature of the battery is higher than a preset battery temperature threshold value, the battery temperature is higher, a cooling requirement exists, at the moment, cooling state information of the vehicle to be charged needs to be acquired, whether the vehicle to be charged supports external cooling of the charging pile or not is judged according to the cooling state information, and subsequent steps are carried out according to a judgment result.
Wherein, the cooling state information marks whether the vehicle to be charged supports the external cooling of the charging pile.
The obtaining of the cooling state information of the vehicle to be charged may be: the vehicle controller of the vehicle to be charged sends the cooling state information to the overcharge controller 2, and the overcharge controller 2 receives the cooling state information.
S150: and acquiring the connection state information of the liquid cooling gun, judging whether the liquid cooling gun is successfully connected with the vehicle to be charged according to the connection state information, and if so, executing step S160.
When the vehicle to be charged supports external cooling of the charging pile, the charging pile enters a complete overcharge mode, cooling connection state confirmation is needed, namely whether the connection between the liquid cooling gun and the vehicle to be charged is successful or not is confirmed, specifically, connection state information of the liquid cooling gun is obtained, whether the connection between the liquid cooling gun and the vehicle to be charged is successful or not is judged according to the connection state information, and subsequent steps are carried out according to the judgment result.
The method for acquiring the connection state information of the liquid cooling gun can be as follows: and the vehicle controller of the vehicle to be charged sends the connection state information of the liquid cooling gun to the overcharge controller 2, and the overcharge controller 2 receives the connection state information of the liquid cooling gun.
S160: and acquiring liquid cooling state detection information, judging whether the cooling module works normally according to the liquid cooling state detection information, and if so, executing the step S170.
When the liquid cooling gun is successfully connected with the vehicle to be charged, pile end liquid cooling state detection is required, specifically, liquid cooling state detection information is obtained, whether the cooling module 4 works normally or not is judged according to the liquid cooling state detection information, and subsequent steps are carried out according to a judgment result.
Wherein, the mode of obtaining the liquid cooling state detection information can be as follows: and receiving the liquid cooling state detection information sent by the cooling module 4. The liquid cooling state detection information identifies whether the cooling module 4 is operating normally.
S170: and acquiring communication information between the vehicle to be charged and the charging pile, judging whether the vehicle to be charged and the charging pile are in communication connection or not according to the communication information, and if so, executing the step S180.
When the cooling module 4 works normally, the vehicle-pile system detection is needed, specifically, the communication information between the vehicle to be charged and the charging pile needs to be obtained, whether the vehicle to be charged and the charging pile are in communication connection or not is judged according to the communication information, and the subsequent steps are carried out according to the judgment result.
Continuing to refer to fig. 1, fill electric pile and still include communication module 6, the mode of obtaining the vehicle of waiting to charge and filling the intercommunication information between the electric pile can be: and receiving the communication information sent by the communication module 6. The communication module 6 is responsible for transmitting status information such as charging status and fault information to the server and transmitting a server requirement instruction.
And the communication information marks whether the vehicle to be charged is in communication connection with the charging pile.
S180: the control power conversion module charges a battery of the vehicle to be charged through the charging gun, the control cooling module cools the battery of the vehicle to be charged through the liquid cooling gun, and when charging is finished, the control cooling module stops working.
After the vehicle to be charged and the charging pile are in communication connection, the power conversion module 1 can be controlled to charge the battery of the vehicle to be charged through the charging gun 3, the cooling module 4 is controlled to cool the battery of the vehicle to be charged through the liquid cooling gun 5, and when the charging is finished, the cooling module 4 is controlled to stop working.
There are various structures of the cooling module 4, including but not limited to the following two:
the first method comprises the following steps:
fig. 3 is a schematic structural diagram of a cooling module according to an embodiment of the present invention, and referring to fig. 3, the cooling module 4 may include a first compressor 41, a first condenser 42, a first cooling fan 43, a radiator 44, a first refrigerant pressure sensor 45, a first plate heat exchanger 46, an electronic three-way valve 47, a first water pump 48, a first fluid supplement tank 49, a first fluid level sensor 401, a first water temperature sensor 402, a refrigerant pipeline 403, and a first cooling fluid pipeline 404.
With reference to fig. 3, an outlet of the first compressor 41 is connected to an inlet of the first condenser 42, an air suction port of the first compressor 41 is connected to a refrigerant outlet of the first plate heat exchanger 46, an outlet of the first condenser 42 is connected to a refrigerant inlet of the first plate heat exchanger 46 through a first outlet pipeline, the first refrigerant pressure sensor 45 is disposed in the first outlet pipeline, an outlet of the radiator 44 is connected to an inlet of the first fluid infusion pot 49, an inlet of the radiator 44 is connected to a first outlet of the electronic three-way valve 47, a waterway inlet of the first plate heat exchanger 46 is connected to a second outlet of the electronic three-way valve 47, a waterway outlet of the first plate heat exchanger 46 is connected to an inlet of the first fluid infusion pot 49, an inlet of the first water pump 48 is connected to the liquid cooling gun 5, an outlet of the first water pump 48 is connected to an inlet of the electronic three-way valve 47, the liquid cooling gun 5 is connected to an outlet of the first fluid infusion pot 49 through a second outlet pipeline, the first water temperature sensor 402 is disposed in the second water outlet pipeline, the first fluid level sensor 401 is disposed in the first fluid infusion pot 49, the first fluid infusion pot 43 is disposed in parallel to the first fluid cooling pot 42.
The overcharge controller 2 is connected to a first liquid level sensor 401, the first compressor 41, the first cooling fan 43, the first refrigerant pressure sensor 45, the first water temperature sensor 402, the first water pump 48, and the electronic three-way valve 47, respectively.
The functions of the structures are described as follows:
first compressor 41: in the refrigerant loop of the battery external cooling system, the refrigerant circuit plays a role of compressing and driving the refrigerant, and consumes electric energy to draw the refrigerant from the low-pressure area to be compressed and then sent to the high-pressure area. And the air conditioner pipeline is fixed on the equipment main body structure of the cooling module 4 and is connected with the refrigerant loop through an air conditioner pipeline, wherein the air conditioner pipeline comprises a high-pressure pipeline and a low-pressure pipeline.
First water pump 48: in a water loop of a cooling system outside the battery, electric energy is consumed to enable cooling liquid to flow in the system, and the purposes of designing flow and finishing heat exchange are achieved. Is fixed on the equipment body of the cooling module 4 and is connected in series in the water loop through a water inlet pipe and a water outlet pipe.
First condenser 42: in the battery external cooling system refrigerant circuit, a high-temperature high-pressure gas refrigerant is heat-exchanged with air and converted into a low-temperature high-pressure liquid refrigerant. And the cooling module is fixed on the main structure of the cooling module 4 and is connected with the refrigerant loop through an air conditioner pipeline.
The heat sink 44: in the water circuit of the external cooling system of the battery, the high-temperature cooling liquid is exchanged with air, and the temperature of the cooling liquid is reduced. Is fixed on the main structure of the cooling module 4 and is connected with a cooling system through a water pipe.
First cooling fan 43: the operation of consuming electric energy makes radiator 44 and first condenser 42 produce the air flow on the surface, realizes radiator 44 and first condenser 42 heat exchange. Is fixed to the equipment body structure of the cooling module 4 in parallel with the first condenser 44.
First plate heat exchanger 46: in the battery external cooling system refrigerant circuit, heat exchange is carried out through the plate, so that heat in the cooling liquid circuit is exchanged to the refrigerant circuit, and system heat dissipation is realized. Is fixed on the main structure of the cooling module 4 and is respectively connected with the refrigerant loop and the water loop.
The electronic three-way valve 47: in the water loop of the external cooling system of the battery, the input and output flow channels are switched through electronic control, so that the system is switched between natural convection cooling and forced cooling. The electronic three-way valve is connected in series in the water loop.
First liquid replenishing pot 49: in the water loop of the battery external cooling system, the water replenishing function is undertaken, when the pressure is too high or the cooling liquid is excessive, redundant gas and cooling liquid flow out from a bypass water channel of the kettle, and the bad effect of pipe burst caused by the too high pressure of the cooling system is avoided. And the device main body structure is fixed on the cooling module 4, and the arrangement position is located at the highest point of the system and is connected in series in the system.
First level sensor 401: in battery external cooling system water return circuit, install in the inside of first fluid infusion kettle 49, when the system does not lack water, first level sensor 401's major structure soaks in liquid, behind the system weeping, the liquid level reduces, first level sensor 401 can't be all soaked, at this moment, surpass and fill controller 2 and gather first level sensor 401's resistance signal in real time, for example judge whether resistance signal is less than predetermineeing the resistance threshold value when the production change, if yes, confirm to lack liquid, output alarm information, in order to protect.
First refrigerant pressure sensor 45: in the battery external cooling system refrigerant circuit, arranged on the outlet line of the first condenser 42, i.e. the first outlet line, the high pressure of the system therein is detected, wherein different high pressure pressures correspond to different feedback voltages. The overcharge controller 2 collects the feedback voltage of the first refrigerant pressure sensor 45 for system control and protection, wherein the higher the high pressure is, the higher the rotation speed of the first cooling fan 43 is, and when the high pressure is greater than a preset alarm value, the overcharge controller 2 controls the first compressor 41 to perform shutdown protection.
The first water temperature sensor 402: in the water loop of the battery external cooling system, the water loop is arranged in a water outlet pipe of the equipment, namely a second water outlet pipeline, the overcharge controller 2 collects resistance signals of the overcharge controller, determines the water outlet temperature corresponding to the resistance signals through a sensor resistance and temperature corresponding table, and is used for monitoring and water temperature target control reference.
Liquid cooling gun 5: and in the water loop of the battery external cooling system, the water loop is in butt joint communication with a vehicle cooling system, and plays roles of connection and sealing. The equipment line terminals located in the cooling module 4 are fixed in the equipment sockets of the cooling module 4 when not connected to the vehicle.
Refrigerant line 403: in the battery external cooling system refrigerant circuit.
First coolant line 404: in the battery external cooling system water loop.
The above-mentioned control cooling module 4 cools the battery of the vehicle to be charged through the liquid cooling gun 5, and when the charging is finished, the control cooling module 4 stops working, which may include:
acquiring the ambient temperature around the vehicle to be charged, and judging whether the ambient temperature is less than a preset temperature threshold value or not;
if yes, the first outlet of the electronic three-way valve 47 is controlled to be communicated with the inlet of the radiator 44, the first water pump 48 and the first cooling fan 43 are controlled to operate to cool the battery of the vehicle to be charged through the liquid cooling gun 5, and when charging is finished, the first water pump 48 and the first cooling fan 43 are controlled to stop operating.
When filling electric pile and being used for the northern district, fill electric pile and possess natural convection cooling mode and force the cooling mode, can judge according to actual environment temperature and switch, play energy-conserving effect, wherein, natural convection cooling mode and force the cooling mode and be the complete mode of surpassing. Therefore, when cooling the battery of the vehicle to be charged, it is necessary to determine the cooling mode, that is, whether to perform the natural convection cooling mode or the forced cooling mode. Specifically, the ambient temperature around the vehicle to be charged needs to be acquired, and whether the ambient temperature is less than a preset temperature threshold is determined, where the preset temperature threshold may be 20 ℃ -X, and X is a temperature determined according to actual calibration.
If the ambient temperature is lower than the preset temperature threshold, which indicates that the current temperature is lower, the battery of the vehicle to be charged can be cooled by performing the natural convection cooling mode, specifically, referring to fig. 3, the first outlet of the electronic three-way valve 47 is controlled to be communicated with the inlet of the radiator 44, the first water pump 48 and the first cooling fan 43 are controlled to operate, the battery of the vehicle to be charged is cooled by the liquid cooling gun 5, and when the charging is finished, the first water pump 48 and the first cooling fan 43 are controlled to stop operating.
In another implementation, after the step of determining whether the ambient temperature is less than the preset temperature threshold, the method may further include:
if the ambient temperature is not less than the preset temperature threshold, controlling a second outlet of the electronic three-way valve 47 to be connected with a waterway inlet of the first plate heat exchanger 46, controlling the first water pump 48, the first compressor 41 and the first cooling fan 43 to operate, cooling a battery of the vehicle to be charged through the liquid cooling gun 5, and controlling the first water pump 48, the first compressor 41 and the first cooling fan 43 to stop operating when the charging is finished.
If the ambient temperature is not less than the preset temperature threshold, it is indicated that the current temperature is high, the natural convection cooling mode is performed, which is not enough to cool the battery of the vehicle to be charged, and at this time, the forced cooling mode needs to be performed to cool the battery of the vehicle to be charged, specifically, referring to fig. 3 continuously, the second outlet of the electronic three-way valve 47 is controlled to be connected with the water inlet of the first plate heat exchanger 46, the first water pump 48, the first compressor 41 and the first cooling fan 43 are controlled to operate, the battery of the vehicle to be charged is cooled by the liquid cooling gun 5, and when the charging is finished, the first water pump 48, the first compressor 41 and the first cooling fan 43 are controlled to stop operating.
In the case where the cooling module 4 includes the first compressor 41, the first condenser 42, the first cooling fan 43, the radiator 44, the first refrigerant pressure sensor 45, the first plate heat exchanger 46, the electronic three-way valve 47, the first water pump 48, the first fluid-replenishing tank 49, the first fluid level sensor 401, the first water temperature sensor 402, the refrigerant pipe 403, and the first coolant pipe 404, the above method may further include:
gather first resistance signal of first level sensor 401, when first resistance signal is less than predetermineeing the resistance threshold value, output alarm information.
When the first resistance signal is smaller than the preset resistance threshold value, it is indicated that the liquid in the first liquid replenishing kettle 49 is less at the moment, and alarm information needs to be output to remind a worker to replenish the liquid.
And the second method comprises the following steps:
fig. 4 is another structural schematic diagram of the cooling module according to the embodiment of the present invention, and referring to fig. 4, the cooling module 4 may include a second compressor 51, a second condenser 52, a second cooling fan 53, a second refrigerant pressure sensor 54, a second plate heat exchanger 55, a second water pump 56, a second fluid supplement pot 57, a second fluid level sensor 58, a second water temperature sensor 59, and a second cooling fluid pipeline 50.
An outlet of the second compressor 51 is connected with an inlet of the second condenser 52, an air suction port of the second compressor 51 is connected with a refrigerant outlet of the second plate heat exchanger 55, an outlet of the second condenser 52 is connected with a refrigerant inlet of the second plate heat exchanger 55 through a third outlet pipeline, the second refrigerant pressure sensor 54 is arranged in the third outlet pipeline, a waterway inlet of the second plate heat exchanger 55 is connected with an outlet of the second water pump 56, a waterway outlet of the second plate heat exchanger 55 is connected with an inlet of the second liquid replenishing kettle 57, an inlet of the second water pump 56 is connected with the liquid cooling gun 5, the liquid cooling gun 5 is connected with an outlet of the second liquid replenishing kettle 57 through a fourth outlet pipeline, the second water temperature sensor 59 is arranged in the fourth outlet pipeline, the second liquid level sensor 58 is arranged in the second liquid replenishing kettle 57, the second liquid replenishing kettle 57 is filled with cooling liquid, and the second cooling fan 53 is arranged in parallel with the second condenser 52.
The overcharge controller 2 is connected to a second liquid level sensor 58, a second compressor 51, a second cooling fan 53, a second refrigerant pressure sensor 54, a second water temperature sensor 59, and a second water pump 56, respectively.
The functions of the structures included in the cooling module 4 can be referred to the related description of the first structure of the cooling module 4, and are not described herein again.
The above-mentioned control cooling module 4 cools the battery of the vehicle to be charged through the liquid cooling gun 5, and when the charging is finished, the control cooling module 4 stops working, which may include:
and controlling the second water pump 56, the second compressor 51 and the second cooling fan 53 to operate, cooling the battery of the vehicle to be charged through the liquid cooling gun 5, and controlling the second water pump 56, the second compressor 51 and the second cooling fan 53 to stop operating when the charging is finished.
When the charging pile is used in the southern area, the temperature in the southern area is high, and the natural convection cooling mode has no application scene, so that the charging pile only comprises a forced cooling function mode at the moment. Specifically, the second water pump 56, the second compressor 51 and the second cooling fan 53 are controlled to operate to cool the battery of the vehicle to be charged through the liquid cooling gun 5, and when the charging is finished, the second water pump 56, the second compressor 51 and the second cooling fan 53 are controlled to stop operating.
In the case that the cooling module 4 includes the second compressor 51, the second condenser 52, the second cooling fan 53, the second refrigerant pressure sensor 54, the second plate heat exchanger 55, the second water pump 56, the second fluid infusion pot 57, the second fluid level sensor 58, the second water temperature sensor 59, and the second cooling fluid pipeline 50, the method may further include:
and collecting a second resistance signal of the second liquid level sensor 58, and outputting alarm information when the second resistance signal is smaller than a preset resistance threshold value.
When the second resistance signal is smaller than the preset resistance threshold value, it indicates that the liquid in the second liquid replenishing kettle 57 is less at this moment, and alarm information needs to be output to remind a worker to replenish the liquid.
As can be seen from the above, in this embodiment, authentication information of a vehicle to be charged may be obtained, whether the vehicle to be charged has a super charging function is determined according to the authentication information, wherein the super charging function is a function of charging with a current greater than a preset power, if the vehicle to be charged has the super charging function, it is determined whether first handshake information sent by the vehicle to be charged is received, if the first handshake information is received, battery information of the vehicle to be charged is obtained, it is determined whether a temperature of the battery is higher than a preset battery temperature threshold value according to the battery information, if the temperature is higher than the preset battery temperature threshold value, cooling state information of the vehicle to be charged is obtained, it is determined whether the vehicle to be charged supports external cooling of a charging pile according to the cooling state information, if the first handshake information supports, connection state information of a liquid cooling gun is obtained, it is determined whether the liquid cooling gun and the vehicle to be charged are successfully connected according to the connection state information, if the liquid cooling state detection information is obtained, it is determined whether the cooling module is normally operated according to determine whether the vehicle to be charged and the vehicle to be charged is connected to the charging pile, if the liquid cooling gun is successfully connected, it is controlled to be charged, and the charging gun is controlled to stop the charging of the charging pile. Therefore, in the embodiment of the invention, the battery of the vehicle to be charged can be cooled by arranging the cooling module in the charging pile, the vehicle space and the whole vehicle weight are not occupied, the vehicle cost is reduced, and the vehicle can be rapidly charged with high power.
And the existing charging pile has no function of cooling the vehicle battery, and in order to solve the problem of high-power charging and heat dissipation, the vehicle needs to be provided with a high-power battery liquid cooling system, and the battery liquid cooling system has heavy weight and high cost, and only operates at full power under a high-temperature quick charging scene, so that the utilization rate is low. The charging pile is arranged to comprise the cooling module, so that the vehicle does not need to be provided with a high-power battery liquid cooling system, the vehicle space and the whole vehicle weight do not need to be occupied, the whole vehicle cost can be reduced, and the problem of low utilization rate of the high-power battery liquid cooling system arranged on the vehicle is solved.
And the existing charging pile has no function of cooling the vehicle battery, so that if an air conditioner is used while the vehicle is charged at high power, the requirements of lifting temperature of a passenger compartment and charging at high power cannot be met simultaneously, and the comfort of the air conditioner in the passenger compartment is poor. The charging pile is arranged to comprise the cooling module, so that the vehicle does not need to meet the requirement of high-power charging, the comfort of an air conditioner in a member cabin is not influenced when the air conditioner is used, and the comfort of the air conditioner in the member cabin is improved.
And the existing vehicle needs the high-speed operation of the vehicle-mounted heat dissipation component during high-power charging and heat dissipation, so that the noise in the vehicle is large. And the charging pile is arranged to comprise the cooling module in the embodiment of the invention, so that the heat dissipation part is not arranged in the vehicle, and the noise in the vehicle is avoided.
And the existing charging pile has no function of cooling the vehicle battery, the vehicle needs to couple the control logic of the thermal management system of the vehicle and the control logic of the vehicle air conditioner in order to cool the battery in the high-power quick charging process, and the control logics of the vehicle and the vehicle air conditioner are complex, so that the calibration period is long, the development period of the whole vehicle is further long, and the development cost is high. In the embodiment of the invention, the charging pile is arranged to comprise the cooling module, and the cooling module is used for cooling the battery in the high-power quick charging process, so that the control logic of the heat management system of the vehicle and the control logic of the air conditioner of the vehicle are not required to be coupled, the calibration period is short, and the development period and the development cost of the whole vehicle are reduced.
And, when the existing charging pile is performing high-power quick charging, various electrochemical reactions and physical changes occur inside the battery of the electric automobile, the heat generation power of the battery system is too large, which results in generation of a large amount of heat, if the heat cannot be well dissipated, the temperature of the battery is raised to the outside of the normal working temperature range, which results in uneven distribution of the temperature field of the battery pack, which may finally cause serious reduction of the electrochemical performance of the battery pack, thereby affecting the safety and durability of the battery, and meanwhile, the difference of the temperature of each single battery can also cause the charging and discharging capacity of each power battery to be different, which finally reduces the service cycle life of the battery pack. The charging pile comprises the cooling module, the cooling module is used for uniformly cooling the battery in the high-power quick charging process, the thermal runaway accident is prevented, the temperature difference in the battery pack is reduced, the formation of a local hot area is inhibited, the battery at a high-temperature position is prevented from being attenuated too fast, the overall service life of the battery pack is shortened, the performance of the battery pack is optimal, the efficiency of the battery pack is highest, and potential safety hazards caused by the thermal runaway can be eliminated.
And the charging pile comprises a liquid cooling gun, so that the charging gun can work in a safe range in the charging process.
After step S130 of the method shown in fig. 2, the method may further include:
and if the temperature of the battery is not higher than the preset battery temperature threshold value, controlling the power conversion module to intermittently output a pulse signal to the battery of the vehicle to be charged through the charging gun to heat and charge the battery of the vehicle to be charged.
When the temperature of the battery is not higher than the preset battery temperature threshold, it is indicated that the battery has a heating requirement, at this time, the power conversion module 1 needs to be controlled to intermittently output a pulse signal to the battery of the vehicle to be charged through the charging gun 3 to heat and charge the battery of the vehicle to be charged, wherein the frequency of the pulse signal is greater than the preset frequency.
Fig. 5 is a schematic diagram of pulse charging according to an embodiment of the present invention, referring to fig. 5, the power conversion module 1 may include a DC/DC module 11, and the overcharge controller 2 controls the power conversion module 1 to intermittently output a pulse signal to a battery of a vehicle to be charged through the charging gun 3 to heat and charge the battery of the vehicle to be charged, where: the overcharge controller 2 controls the DC/DC module 11 to intermittently output pulse signals to the battery of the vehicle to be charged through the charging gun 3 to heat and charge the battery of the vehicle to be charged.
Because the pulse signal that the frequency is greater than preset frequency is the rate of heating of high frequency pulse signal fast, consequently, can reach quick charge's purpose, realize preheating the battery when the battery temperature is lower, promote the battery temperature, ensure the security of charging under the low temperature to improve the charging speed.
Because the existing fast charging pile is not provided with energy storage equipment, when high-power fast charging is carried out, the requirement on a mains supply end is high, the impact on a mains network is large, the mains supply is interfered, and the power shortage in a power consumption peak period is easily caused.
The commercial power is stored in the energy storage battery through the energy storage device 7, and the direct current electric energy is provided for the super charging pile when the super charging pile works.
From this, through the mode that sets up energy storage equipment 7, when carrying out high-power quick charge, can provide the electric energy, avoid causing the influence to the commercial power.
On the basis of the method shown in fig. 2, after step S110, the charging method for the charging pile with the cooling function according to the embodiment of the present invention may further include:
if the vehicle does not have the overcharge function, judging whether second handshake information sent by the vehicle to be charged is received;
if the charging pile is received, acquiring first state information of the charging pile, and judging whether the charging pile works normally or not according to the first state information of the charging pile;
and if the charging is normal, controlling the power conversion module 1 to charge the battery of the vehicle to be charged through the charging gun 3.
After confirming that the vehicle to be charged does not have the super-charging function, a common direct-current quick-charging mode is required, and the charging gun 3 is manually connected with the vehicle to be charged.
Because the handshake protocol is a network protocol for the client and the server to confirm the identities of each other, if the charging gun 3 is successfully connected with the vehicle to be charged, the vehicle to be charged can send second handshake information to the overcharge controller 2, and therefore, the overcharge controller 2 can judge whether the charging gun 3 is successfully connected with the vehicle to be charged by judging whether the second handshake information sent by the vehicle to be charged is received.
When the second handshake information sent by the vehicle to be charged is received, it is indicated that the charging gun 3 is successfully connected with the vehicle to be charged. At the moment, first state information of the charging pile is obtained, whether the charging pile normally works is judged according to the first state information of the charging pile, and whether the charging pile normally works is identified according to the first state information.
After confirming that the charging pile works normally, entering a common direct-current quick charging process, the super-charging controller 2 controls the power conversion module 1 to charge the battery of the vehicle to be charged through the charging gun 3, and at the moment, the charging is only carried out in a direct-current mode and pulse signals are not involved.
Therefore, when the vehicle to be charged does not have the super-charging function, the battery of the vehicle to be charged is charged in the ordinary direct current quick-charging mode.
On the basis of the method shown in fig. 2, after step S140, the charging method for the charging pile with the cooling function according to the embodiment of the present invention may further include:
when the vehicle to be charged does not support external cooling of the charging pile, second state information of the charging pile is obtained, and whether the charging pile works normally or not is judged according to the second state information of the charging pile;
and if the charging gun is normal, controlling the power conversion module to charge the battery of the vehicle to be charged through the charging gun.
When the vehicle to be charged does not support external cooling of the charging pile, second state information of the charging pile is acquired, whether the charging pile works normally is judged according to the second state information of the charging pile, and the second state information marks whether the charging pile works normally.
After confirming that the charging pile normally works, the charging pile enters a common super-charging mode, the super-charging controller 2 controls the power conversion module 1 to charge the battery of the vehicle to be charged through the charging gun 3, at the moment, the charging is only carried out in a direct current mode, and pulse signals are not involved.
Therefore, when the vehicle to be charged does not support external cooling of the charging pile, the battery of the vehicle to be charged is charged through a common super-charging mode.
Continuing to refer to fig. 1, fill electric pile and can also include metering module 8 and financial module 9, and metering module 8 and financial module 9 are all connected with super fill controller 2, and metering module 8 is used for counting the electric energy that consumes in the charging process, and financial module 9 is used for counting the amount of consumption according to the electric energy of consumption to undertake the relevant function of payment.
With continued reference to fig. 1, the charging pile provided by the embodiment of the present invention may further include a human-computer interaction module 10, where the human-computer interaction module 10 is connected to the overcharge controller 2.
The main carrier of the human-computer interaction module 10 is a touch screen, collects user input information, displays charging pile state information, and interacts with the overcharge controller 2.
After each judgment step of the charging method of the charging pile with the cooling function, a human-computer prompt can be performed through a human-computer interaction module, for example: when the vehicle to be charged is confirmed to have the super charging function, a human-computer prompt of the charging vehicle having the super charging function can be performed, and when the vehicle to be charged is confirmed to support external cooling of the charging pile, the human-computer prompt of the vehicle to be charged supporting external cooling of the charging pile can be performed, which is not exemplified herein.
Therefore, by the mode of arranging the human-computer interaction module 10, human-computer prompt can be performed, and checking is convenient.
Fig. 6 is a schematic signal transmission diagram of the overcharge controller 2 according to the embodiment of the present invention, and referring to fig. 6, arrows represent signal transmission directions.
In fig. 6, the left side of the overcharge controller 2 is the signal input side: the super-charging pile liquid level sensor is a first liquid level sensor 401 or a second liquid level sensor 58, the high-pressure refrigerant pressure is derived from a first refrigerant pressure sensor 45 or a second refrigerant pressure sensor 54, and the vehicle-end BMS battery management system information is derived from a vehicle-end BMSCAN signal acquired by a charging gun, wherein BMS is a battery management system, and CAN is a controller area network. The energy storage device state information and the grid power supply capability information are derived from an energy storage device EMS (Engine Management System). The overcharge human-machine input is derived from the overcharge touch screen module. The remote and big data information comes from the background server and is transmitted and controlled through the 4G. The temperature signal of the quick-charging gun head comes from the gun head temperature sensor, the temperature of the gun head can be reflected in real time, charging is stopped when the temperature is detected to be too high, and the super-charging piles are all charging piles provided by the embodiment of the invention.
In fig. 6, the right side of the overcharge controller 2 is the signal output side: and signals are output to the oil-cooled water pump at the super-charging pile end, the liquid-cooled water pump of the super-charging pile, an electronic water valve in the cooling module 4 and an electric element of the super-charging pile, and man-machine display of the super-charging pile is realized. The cooling fan may be the first cooling fan 43 or the second cooling fan 53, and the compressor may be the first compressor 41 or the second compressor 51, and outputs an energy storage request, overcharge state information, charge state information, and failure and alarm information.
For convenience of understanding, the charging method for a charging pile with a cooling function according to an embodiment of the present invention is described below from another perspective, fig. 7 is another schematic flow chart of the charging method for a charging pile with a cooling function according to an embodiment of the present invention, referring to fig. 7, the vehicle authentication in fig. 7 is step S110 in fig. 2, the connection state is step S120 in fig. 2, the cooling state is step S140 in fig. 2, the cooling connection state is step S150 in fig. 2, the pile end liquid cooling state monitoring is step S160 in fig. 2, the vehicle-pile system detection is step S170 in fig. 2, and the cooling mode determination is step S180 in fig. 2, which is specifically described in fig. 2 and will not be repeated herein. In fig. 7, the overall flow of vehicle entrance, charging, and vehicle exit is shown, where Y represents yes and N represents no.
Corresponding to the method embodiment, an embodiment of the present invention provides a charging apparatus for a charging pile with a cooling function, as shown in fig. 8, where the charging pile includes a power conversion module, a super charging controller, a charging gun, a cooling module, and a liquid cooling gun, the super charging controller is respectively connected to the power conversion module, the cooling module, the charging gun, and the liquid cooling gun, the power conversion module is connected to the charging gun, the cooling module is connected to the liquid cooling gun, and the apparatus is applied to the super charging controller, and the apparatus may include:
the authentication information acquisition module 801 is used for acquiring authentication information of a vehicle to be charged, judging whether the vehicle to be charged has a super-charging function according to the authentication information, and if so, triggering the first judgment module 802, wherein the super-charging function is a function of charging with current larger than preset power;
the first determining module 802 is configured to determine whether first handshake information sent by the vehicle to be charged is received, and if yes, trigger the battery information obtaining module 803;
the battery information acquiring module 803 is configured to acquire battery information of the vehicle to be charged, determine whether the temperature of the battery is higher than a preset battery temperature threshold according to the battery information, and if so, trigger the cooling state information acquiring module 804;
the cooling state information obtaining module 804 is configured to obtain cooling state information of the vehicle to be charged, determine whether the vehicle to be charged supports external cooling of the charging pile according to the cooling state information, and if so, trigger the connection state information obtaining module 805;
the connection state information obtaining module 805 is configured to obtain connection state information of the liquid cooling gun, determine whether the liquid cooling gun is successfully connected to the vehicle to be charged according to the connection state information, and if so, trigger the liquid cooling state detection information obtaining module 806;
the liquid cooling state detection information obtaining module 806 is configured to obtain liquid cooling state detection information, determine whether the cooling module normally operates according to the liquid cooling state detection information, and if so, trigger the communication information obtaining module 807;
the communication information acquiring module 807 is configured to acquire communication information between the vehicle to be charged and the charging pile, determine whether the vehicle to be charged and the charging pile are in communication connection according to the communication information, and if so, trigger a second control module 808;
and the second control module 808 is configured to control the power conversion module to charge the battery of the vehicle to be charged through the charging gun, control the cooling module to cool the battery of the vehicle to be charged through the liquid cooling gun, and control the cooling module to stop working when charging is finished.
By applying the embodiment of the invention, the authentication information of the vehicle to be charged can be obtained, whether the vehicle to be charged has the super-charging function is judged according to the authentication information, wherein the super-charging function is a function of charging with a current larger than the preset power, if the vehicle to be charged has the super-charging function, whether the first handshake information sent by the vehicle to be charged is received is judged, if the first handshake information is received, the battery information of the vehicle to be charged is obtained, whether the temperature of the battery is higher than the preset battery temperature threshold value is judged according to the battery information, if the temperature of the battery is higher than the preset battery temperature threshold value, the cooling state information of the vehicle to be charged is obtained, whether the vehicle to be charged supports external cooling of the charging pile is judged according to the cooling state information, if the first handshake information supports, the connection state information of the liquid cooling gun is obtained, whether the liquid cooling gun and the vehicle to be charged are successfully connected is judged according to the connection state information, if the liquid cooling state detection information is successful, whether the cooling module normally works is judged according to the liquid cooling gun to be charged and the vehicle to be charged is cooled, and the charging gun is controlled to stop the charging of the vehicle to be charged when the cooling gun is controlled, and the vehicle is cooled. Therefore, in the embodiment of the invention, the battery of the vehicle to be charged can be cooled by arranging the cooling module in the charging pile, the vehicle space and the whole vehicle weight are not occupied, the vehicle cost is reduced, and the vehicle can be rapidly charged with high power.
In another embodiment of the present invention, the cooling module includes a first compressor, a first condenser, a first cooling fan, a radiator, a first refrigerant pressure sensor, a first plate heat exchanger, an electronic three-way valve, a first water pump, a first fluid infusion pot, a first fluid level sensor, a first water temperature sensor, a refrigerant pipeline, and a first coolant pipeline;
an outlet of the first compressor is connected with an inlet of the first condenser, an air suction port of the first compressor is connected with a refrigerant outlet of the first plate heat exchanger, an outlet of the first condenser is connected with a refrigerant inlet of the first plate heat exchanger through a first outlet pipeline, a first refrigerant pressure sensor is arranged in the first outlet pipeline, an outlet of the radiator is connected with an inlet of the first liquid supplementing kettle, an inlet of the radiator is connected with a first outlet of the electronic three-way valve, a water path inlet of the first plate heat exchanger is connected with a second outlet of the electronic three-way valve, a water path outlet of the first plate heat exchanger is connected with an inlet of the first liquid supplementing kettle, an inlet of the first water pump is connected with the liquid cooling gun, an outlet of the first water pump is connected with an inlet of the electronic three-way valve, the liquid cooling gun is connected with an outlet of the first liquid supplementing kettle through a second outlet pipeline, the first water temperature sensor is arranged in the second water outlet pipeline, the first liquid level sensor is arranged in the first liquid supplementing kettle, cooling liquid is filled with cooling liquid, and a first cooling fan is arranged in the first liquid supplementing kettle in parallel with the first condenser;
the overcharge controller is respectively connected with the first liquid level sensor, the first compressor, the first cooling fan, the first refrigerant pressure sensor, the first water temperature sensor, the first water pump and the electronic three-way valve;
the second control module 808 may be specifically configured to:
acquiring the ambient temperature around the vehicle to be charged, and judging whether the ambient temperature is less than a preset temperature threshold value or not;
if yes, controlling a first outlet of the electronic three-way valve to be communicated with an inlet of the radiator, controlling the first water pump and the first cooling fan to operate, cooling a battery of the vehicle to be charged through the liquid cooling gun, and controlling the first water pump and the first cooling fan to stop operating when charging is finished.
In another embodiment of the present invention, the charging apparatus for a charging pile with a cooling function further includes a third control module, where the third control module is configured to, after the determining whether the ambient temperature is less than a preset temperature threshold, control a second outlet of the electronic three-way valve to be connected to a water inlet of the first plate heat exchanger if the ambient temperature is not less than the preset temperature threshold, control the first water pump, the first compressor, and the first cooling fan to operate, and cool the battery of the vehicle to be charged through the liquid cooling gun, and control the first water pump, the first compressor, and the first cooling fan to stop operating when charging is finished.
In another embodiment of the present invention, the charging apparatus for a charging pile with a cooling function further includes a first control module, where the first control module is configured to, after the determination that whether the temperature of the battery is higher than a preset battery temperature threshold according to the battery information is performed, if the temperature of the battery is not higher than the preset battery temperature threshold, control the power conversion module to intermittently output a pulse signal to the battery of the vehicle to be charged through the charging gun to heat and charge the battery of the vehicle to be charged, where a frequency of the pulse signal is greater than a preset frequency.
In another embodiment of the present invention, the cooling module includes a second compressor, a second condenser, a second cooling fan, a second refrigerant pressure sensor, a second plate heat exchanger, a second water pump, a second fluid-replenishing pot, a second liquid level sensor, a second water temperature sensor, and a second coolant pipeline;
an outlet of the second compressor is connected with an inlet of the second condenser, an air suction port of the second compressor is connected with a refrigerant outlet of the second plate heat exchanger, an outlet of the second condenser is connected with a refrigerant inlet of the second plate heat exchanger through a third outlet pipeline, the second refrigerant pressure sensor is arranged in the third outlet pipeline, a water path inlet of the second plate heat exchanger is connected with an outlet of the second water pump, a water path outlet of the second plate heat exchanger is connected with an inlet of the second liquid replenishing kettle, an inlet of the second water pump is connected with the liquid cooling gun, the liquid cooling gun is connected with an outlet of the second liquid replenishing kettle through a fourth outlet pipeline, the second water temperature sensor is arranged in the fourth water outlet pipeline, the second liquid level sensor is arranged in the second liquid replenishing kettle, cooling liquid is filled in the second liquid replenishing kettle, and the second cooling fan is arranged in parallel with the second condenser;
the overcharge controller is respectively connected with the second liquid level sensor, the second compressor, the second cooling fan, the second refrigerant pressure sensor, the second water temperature sensor and the second water pump;
the second control module 808 may be specifically configured to:
and controlling the second water pump, the second compressor and the second cooling fan to operate, cooling a battery of the vehicle to be charged through the liquid cooling gun, and controlling the second water pump, the second compressor and the second cooling fan to stop operating when charging is finished.
In another embodiment of the present invention, the charging pile further includes an energy storage device, and the energy storage device is connected to the power conversion module.
In another embodiment of the present invention, the charging device for the charging pile with the cooling function further includes a first collecting module, where the first collecting module is configured to collect a first resistance signal of the first liquid level sensor, and output an alarm message when the first resistance signal is smaller than a preset resistance threshold.
In another embodiment of the present invention, the charging apparatus for a charging pile with a cooling function further includes a second determining module, where the second determining module is specifically configured to:
after judging whether the vehicle to be charged has the overcharge function according to the authentication information, if the vehicle to be charged does not have the overcharge function, judging whether second handshake information sent by the vehicle to be charged is received;
if the charging pile is received, acquiring first state information of the charging pile, and judging whether the charging pile works normally or not according to the first state information of the charging pile;
and if the charging gun is normal, controlling the power conversion module to charge the battery of the vehicle to be charged through the charging gun.
In another embodiment of the present invention, the charging apparatus for a charging pile with a cooling function further includes a third determining module, where the third determining module is specifically configured to:
after judging whether the vehicle to be charged supports external cooling of the charging pile according to the cooling state information, when the vehicle to be charged does not support external cooling of the charging pile, acquiring second state information of the charging pile, and judging whether the charging pile normally works according to the second state information of the charging pile;
and if the charging gun is normal, controlling the power conversion module to charge the battery of the vehicle to be charged through the charging gun.
The steps of any of the above-described method embodiments may be varied and combined in practice and are not limited to the modes listed in this application.
The above device embodiment corresponds to the method embodiment, and has the same technical effect as the method embodiment, and for the specific description, refer to the method embodiment. The device embodiment is obtained based on the method embodiment, and for specific description, reference may be made to the method embodiment section, which is not described herein again.
Those of ordinary skill in the art will understand that: the figures are merely schematic representations of one embodiment, and the blocks or flow diagrams in the figures are not necessarily required to practice the present invention.
Those of ordinary skill in the art will understand that: modules in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, or may be located in one or more devices different from the embodiments with corresponding changes. The modules of the above embodiments may be combined into one module, or further split into multiple sub-modules.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. The charging method of the charging pile with the cooling function is characterized in that the charging pile comprises a power conversion module, a super charging controller, a charging gun, a cooling module and a liquid cooling gun, the super charging controller is respectively connected with the power conversion module, the cooling module, the charging gun and the liquid cooling gun, the power conversion module is connected with the charging gun, the cooling module is connected with the liquid cooling gun, the method is applied to the super charging controller, and the method comprises the following steps:
acquiring authentication information of a vehicle to be charged, and judging whether the vehicle to be charged has a super-charging function according to the authentication information, wherein the super-charging function is a function of charging by using current larger than preset power;
if the vehicle has the function of overcharging, judging whether first handshake information sent by the vehicle to be charged is received;
if the battery information of the vehicle to be charged is received, acquiring the battery information of the vehicle to be charged, and judging whether the temperature of the battery is higher than a preset battery temperature threshold value or not according to the battery information;
if the temperature of the vehicle to be charged is higher than the preset temperature, obtaining cooling state information of the vehicle to be charged, and judging whether the vehicle to be charged supports external cooling of the charging pile according to the cooling state information;
if yes, obtaining the connection state information of the liquid cooling gun, and judging whether the liquid cooling gun is successfully connected with the vehicle to be charged according to the connection state information;
if the connection is successful, liquid cooling state detection information is obtained, and whether the cooling module works normally or not is judged according to the liquid cooling state detection information;
if the charging pile is normal, obtaining communication information between the vehicle to be charged and the charging pile, and judging whether the vehicle to be charged and the charging pile are in communication connection or not according to the communication information;
if the power conversion module is in communication connection with the battery to be charged, the power conversion module is controlled to charge the battery of the vehicle to be charged through the charging gun, the cooling module is controlled to cool the battery of the vehicle to be charged through the liquid cooling gun, and when charging is finished, the cooling module is controlled to stop working.
2. The method of claim 1, wherein the cooling module comprises a first compressor, a first condenser, a first cooling fan, a radiator, a first refrigerant pressure sensor, a first plate heat exchanger, an electronic three-way valve, a first water pump, a first fluid replenishment tank, a first fluid level sensor, a first water temperature sensor, a refrigerant line, and a first coolant line;
an outlet of the first compressor is connected with an inlet of the first condenser, an air suction port of the first compressor is connected with a refrigerant outlet of the first plate heat exchanger, an outlet of the first condenser is connected with a refrigerant inlet of the first plate heat exchanger through a first outlet pipeline, the first refrigerant pressure sensor is arranged in the first outlet pipeline, an outlet of the radiator is connected with an inlet of the first liquid supplementing kettle, an inlet of the radiator is connected with a first outlet of the electronic three-way valve, a water path inlet of the first plate heat exchanger is connected with a second outlet of the electronic three-way valve, a water path outlet of the first plate heat exchanger is connected with an inlet of the first liquid supplementing kettle, an inlet of the first liquid cooling pump is connected with the liquid gun, an outlet of the first liquid cooling pump is connected with an inlet of the electronic three-way valve, the liquid cooling gun is connected with an outlet of the first liquid supplementing kettle through a second outlet pipeline, the first water temperature sensor is arranged in the second water outlet pipeline, the first liquid level sensor is arranged in the first liquid supplementing kettle, cooling liquid is filled in the first liquid supplementing kettle, and the first cooling liquid supplementing kettle is arranged in parallel with the first condenser;
the overcharge controller is respectively connected with the first liquid level sensor, the first compressor, the first cooling fan, the first refrigerant pressure sensor, the first water temperature sensor, the first water pump and the electronic three-way valve;
the step of controlling the cooling module to cool the battery of the vehicle to be charged through the liquid cooling gun, and controlling the cooling module to stop working when charging is finished comprises the following steps:
acquiring the ambient temperature around the vehicle to be charged, and judging whether the ambient temperature is less than a preset temperature threshold value;
if yes, controlling a first outlet of the electronic three-way valve to be communicated with an inlet of the radiator, controlling the first water pump and the first cooling fan to operate, cooling a battery of the vehicle to be charged through the liquid cooling gun, and controlling the first water pump and the first cooling fan to stop operating when charging is finished.
3. The method of claim 2, wherein after the step of determining whether the ambient temperature is less than a preset temperature threshold, the method further comprises:
and if the ambient temperature is not less than a preset temperature threshold value, controlling a second outlet of the electronic three-way valve to be connected with a waterway inlet of the first plate type heat exchanger, controlling the first water pump, the first compressor and the first cooling fan to operate to cool a battery of the vehicle to be charged through the liquid cooling gun, and controlling the first water pump, the first compressor and the first cooling fan to stop operating when charging is finished.
4. The method of claim 2, wherein after the step of determining whether the temperature of the battery is above a preset battery temperature threshold based on the battery information, the method further comprises:
and if the temperature of the battery is not higher than a preset battery temperature threshold value, controlling the power conversion module to intermittently output a pulse signal to the battery of the vehicle to be charged through the charging gun to heat and charge the battery of the vehicle to be charged, wherein the frequency of the pulse signal is greater than the preset frequency.
5. The method of claim 1, wherein the cooling module comprises a second compressor, a second condenser, a second cooling fan, a second refrigerant pressure sensor, a second plate heat exchanger, a second water pump, a second fluid replenishment tank, a second liquid level sensor, a second water temperature sensor, and a second coolant line;
an outlet of the second compressor is connected with an inlet of the second condenser, an air suction port of the second compressor is connected with a refrigerant outlet of the second plate heat exchanger, an outlet of the second condenser is connected with a refrigerant inlet of the second plate heat exchanger through a third outlet pipeline, the second refrigerant pressure sensor is arranged in the third outlet pipeline, a water path inlet of the second plate heat exchanger is connected with an outlet of the second water pump, a water path outlet of the second plate heat exchanger is connected with an inlet of the second liquid replenishing kettle, an inlet of the second water pump is connected with the liquid cooling gun, the liquid cooling gun is connected with an outlet of the second liquid replenishing kettle through a fourth outlet pipeline, the second water temperature sensor is arranged in the fourth water outlet pipeline, the second liquid level sensor is arranged in the second liquid replenishing kettle, cooling liquid is filled in the second liquid replenishing kettle, and the second cooling fan is arranged in parallel with the second condenser;
the overcharge controller is respectively connected with the second liquid level sensor, the second compressor, the second cooling fan, the second refrigerant pressure sensor, the second water temperature sensor and the second water pump;
the step of controlling the cooling module to cool the battery of the vehicle to be charged through the liquid cooling gun, and controlling the cooling module to stop working when charging is finished comprises the following steps:
and controlling the second water pump, the second compressor and the second cooling fan to operate, cooling a battery of the vehicle to be charged through the liquid cooling gun, and controlling the second water pump, the second compressor and the second cooling fan to stop operating when charging is finished.
6. The method of any of claims 1-5, wherein the charging post further comprises an energy storage device, the energy storage device being connected to the power conversion module.
7. The method of claim 2 or 3, wherein the method further comprises:
gather first level sensor's first resistance signal, when first resistance signal is less than predetermineeing the resistance threshold value, output alarm information.
8. The method according to claim 1, wherein after the step of determining whether the vehicle to be charged is provided with an overcharge function based on the authentication information, the method further comprises:
if the vehicle does not have the overcharge function, judging whether second handshake information sent by the vehicle to be charged is received;
if the charging pile is received, acquiring first state information of the charging pile, and judging whether the charging pile works normally or not according to the first state information of the charging pile;
and if the charging gun is normal, controlling the power conversion module to charge the battery of the vehicle to be charged through the charging gun.
9. The method of claim 1, wherein after the step of determining whether the vehicle to be charged supports external cooling of the charging post based on the cooling status information, the method further comprises:
when the vehicle to be charged does not support external cooling of the charging pile, second state information of the charging pile is obtained, and whether the charging pile works normally or not is judged according to the second state information of the charging pile;
and if the charging gun is normal, controlling the power conversion module to charge the battery of the vehicle to be charged through the charging gun.
10. The utility model provides a fill electric pile's charging device with cooling function, its characterized in that, fill electric pile and include power conversion module, surpass and fill the controller, the rifle that charges, cooling module and liquid cooling rifle, surpass fill the controller respectively with power conversion module the cooling module the rifle that charges with the liquid cooling rifle is connected, power conversion module with the rifle that charges is connected, the cooling module with the liquid cooling rifle is connected, the device is applied to surpass fills the controller, the device includes:
the system comprises an authentication information acquisition module, a first judgment module and a second judgment module, wherein the authentication information acquisition module is used for acquiring authentication information of a vehicle to be charged, judging whether the vehicle to be charged has a super-charging function according to the authentication information, and if so, triggering the first judgment module, wherein the super-charging function is a function of charging with current larger than preset power;
the first judging module is used for judging whether first handshake information sent by the vehicle to be charged is received or not, and if yes, the battery information acquiring module is triggered;
the battery information acquisition module is used for acquiring battery information of the vehicle to be charged, judging whether the temperature of the battery is higher than a preset battery temperature threshold value or not according to the battery information, and if so, triggering the cooling state information acquisition module;
the cooling state information acquisition module is used for acquiring cooling state information of the vehicle to be charged, judging whether the vehicle to be charged supports external cooling of the charging pile according to the cooling state information, and if so, triggering the connection state information acquisition module;
the connection state information acquisition module is used for acquiring the connection state information of the liquid cooling gun, judging whether the liquid cooling gun is successfully connected with the vehicle to be charged according to the connection state information, and if so, triggering the liquid cooling state detection information acquisition module;
the liquid cooling state detection information acquisition module is used for acquiring liquid cooling state detection information, judging whether the cooling module normally works according to the liquid cooling state detection information, and if so, triggering the communication information acquisition module;
the communication information acquisition module is used for acquiring communication information between the vehicle to be charged and the charging pile, judging whether the vehicle to be charged and the charging pile are in communication connection or not according to the communication information, and if so, triggering a second control module;
the second control module is used for controlling the power conversion module to charge the battery of the vehicle to be charged through the charging gun, controlling the cooling module to cool the battery of the vehicle to be charged through the liquid cooling gun, and controlling the cooling module to stop working when charging is finished.
CN202110441039.7A 2021-04-23 2021-04-23 Charging method and device of charging pile with cooling function Pending CN115230508A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110441039.7A CN115230508A (en) 2021-04-23 2021-04-23 Charging method and device of charging pile with cooling function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110441039.7A CN115230508A (en) 2021-04-23 2021-04-23 Charging method and device of charging pile with cooling function

Publications (1)

Publication Number Publication Date
CN115230508A true CN115230508A (en) 2022-10-25

Family

ID=83666610

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110441039.7A Pending CN115230508A (en) 2021-04-23 2021-04-23 Charging method and device of charging pile with cooling function

Country Status (1)

Country Link
CN (1) CN115230508A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115230518A (en) * 2021-04-23 2022-10-25 北京昇科能源科技有限责任公司 Charging method and device of charging pile with refrigeration function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115230518A (en) * 2021-04-23 2022-10-25 北京昇科能源科技有限责任公司 Charging method and device of charging pile with refrigeration function

Similar Documents

Publication Publication Date Title
CN107310408B (en) A kind of pure electric automobile charge control method of lithium battery
CN106711549B (en) Quick charging pile with cooling system and heating system
CN106004331B (en) A kind of electric automobile air conditioner control system and control method
CN111216600A (en) Battery system with adjustable heating speed and control method thereof
CN103762689B (en) A kind of electric automobile alternating current-direct current combined charging control system and control method
CN113224403B (en) Battery temperature control device for electric vehicle
CN109910684A (en) A kind of power battery heating system of electric vehicle and control method
CN108859814B (en) Charging control method and device for hybrid electric vehicle and vehicle
CN115230519A (en) Charging method and device of charging pile with high-frequency pulse heating function
CN109004293B (en) Size cycle control method for thermal management module of power battery liquid cooling system
CN112537180A (en) Thermal management system, control method and device and automobile
CN115230508A (en) Charging method and device of charging pile with cooling function
CN115230509A (en) Charging method and device of charging pile with heating function
CN114448049A (en) Temperature control system and method and energy storage charging system
CN115230537A (en) Charging method and device of charging pile
CN109890653B (en) Apparatus and method for controlling temperature of battery according to gradient of delivered electric power
CN110316006B (en) Cooling control system and method for charging vehicle-mounted equipment of electric vehicle
CN109119726A (en) The temperature control equipment and method of battery pack
CN111211375B (en) Lithium ion battery liquid cooling type heat pipe control method for frequency modulation and energy storage system
CN109802193B (en) Cooling method for high-temperature charging of battery pack of electric automobile
CN115230518A (en) Charging method and device of charging pile with refrigeration function
CN115503539A (en) Charging system and method with battery temperature control function
CN214295475U (en) Braking energy catcher for improving heating of hydrogen fuel cell automobile
CN210912049U (en) Cooling control system for wireless charging vehicle-mounted equipment of electric automobile
CN113859052B (en) Battery heating system and battery heating method thereof

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