CN112886672A - Portable intelligent charging cabinet and control system thereof - Google Patents
Portable intelligent charging cabinet and control system thereof Download PDFInfo
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- CN112886672A CN112886672A CN202110245467.2A CN202110245467A CN112886672A CN 112886672 A CN112886672 A CN 112886672A CN 202110245467 A CN202110245467 A CN 202110245467A CN 112886672 A CN112886672 A CN 112886672A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00309—Overheat or overtemperature protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
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- 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
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
本发明公开了一种可移动智能充电柜及其控制方法，可移动智能充电柜包括充电柜主体和设置在充电柜主体的充电电源构件、与充电电源构件通过公共连接线连接的供电电源构件，充电电源构件包括国标交流充电座和插头中的至少一种，充电电源构件、供电电源构件与充电控制器连接，充电控制器用于控制充电电源构件、供电电源构件的工作状态，供电电源构件的充电继电器的输入端与公共连接线连接，输出端与充电器连接，充电器的输出端设置有电池包，用于对放置在电池包的电池进行充电。充电电源构件、与充电电源构件通过公共连接线连接的供电电源构件设置在充电柜主体的，使得可安装在载货交通工具上使用，将电源接入后可对更换下来的电池包装载直接充电。
The invention discloses a movable intelligent charging cabinet and a control method thereof. The movable intelligent charging cabinet comprises a charging cabinet main body, a charging power source component arranged on the charging cabinet main body, and a power supply source component connected with the charging power source component through a common connection line. The charging power source component includes at least one of a national standard AC charging base and a plug. The charging power source component and the power supply source component are connected to a charging controller, and the charging controller is used to control the working state of the charging power source component and the power supply source component, and the charging of the power supply source component. The input end of the relay is connected with the common connecting line, the output end is connected with the charger, and the output end of the charger is provided with a battery pack for charging the battery placed in the battery pack. The charging power source member and the power supply power source member connected with the charging power source member through a common connection line are arranged on the main body of the charging cabinet, so that they can be installed on a cargo vehicle for use, and the replaced battery pack can be directly charged after the power supply is connected. .
Description
Technical Field
The invention relates to the technical field of intelligent charging, in particular to a movable intelligent charging cabinet and a control system thereof.
Background
Although transportation is inconvenient at present, long-distance transportation is provided with railways and airplanes, short-distance transportation is provided with buses and subways, and point-to-point personnel transportation is carried out no matter what public transportation means, namely, personnel transportation can be carried out only at a fixed station. Therefore, solving the traffic problem of the last kilometer is one of the important points in the traffic field. In recent years, tens of different brands such as Mei Tuo, Qing Ju, Ha Ji come out from the market to share the bicycle, so as to meet the short-distance travel demand of people.
With the continuous upgrading of market demands, the shared electric moped is arranged behind the shared electric moped, so that the manpower is reduced, the trip experience is improved, and the shared electric moped is pushed to the market by various shared trip companies. The short-distance shared transportation is upgraded into a shared electric vehicle, so that the feet of people are liberated, the fingers are moved, and the people can easily go out.
The shared electric vehicle is used in a shared mode, is driven by electric power and needs to be charged. Because the shared electric vehicle is used in a shared mode, all companies are provided with services by borrowing and returning to ensure user experience, and the shared electric vehicle can be fully charged as long as a part of the space is empty due to large-scale market expansion in a short period, so that the charging problem of the shared electric vehicle is caused.
The shared electric motor car that the market is running at present all changes the battery back to fixed place with the mode of trading the electricity and charges, involves a plurality of links such as dismantlement, transportation, loading and unloading, charging, and the first efficiency that influences can lead to some batteries to damage because of colliding with secondly. Therefore, battery charging and maintenance issues are always troubling operators.
At present, electric vehicles are powered by lithium batteries or lead-acid batteries, and each vehicle is provided with a charger. A common charger is an AC220V input, a dc output, which charges the battery with a constant current and then a constant voltage strategy. The batteries for the shared electric vehicle are lithium batteries, and need to be charged, but cannot be charged by one charger per vehicle like a household electric vehicle. Therefore, the mainstream mode of the current market is that an operator transports a fully charged battery pack to the address of the shared battery car, then uses the fully charged battery pack to replace a non-charged battery on the shared electric car, and then brings the replaced battery back to a special charging place for charging.
The charging control requirement of the lithium battery is higher than that of a lead-acid battery, the lithium battery needs constant-current and constant-voltage charging, a charging loop is disconnected after the lithium battery is fully charged, repeated charging is prevented, and lithium is easy to separate out due to overcharge of the lithium battery, lithium dendrites are generated (the lithium dendrites are dendritic metal lithium formed when lithium ions are reduced in the charging overcharge process), so that the electrode and electrolyte interface of the lithium battery is unstable in the charging and discharging process, and a generated Solid Electrolyte Interface (SEI) film is damaged. Lithium dendrites continuously consume electrolyte during growth and cause irreversible precipitation of metallic lithium, resulting in low coulombic efficiency. The lithium dendrites can even pierce through the membrane to cause short circuit inside the lithium battery, causing thermal runaway of the lithium battery to cause combustion explosion.
Disclosure of Invention
The invention aims to provide a movable intelligent charging cabinet and a control system thereof, which can be installed on a cargo vehicle for use, can directly charge a replaced battery pack after a power supply is connected, improves the charging convenience, and has the advantages of convenient and simple control and high reliability.
In order to solve the above technical problems, an embodiment of the present invention provides a movable intelligent charging cabinet, including a charging cabinet main body, a charging power supply member disposed in the charging cabinet main body, and a power supply member connected to the charging power supply member through a common connection line, where the charging power supply member includes at least one of a national standard ac charging stand and a plug, the charging power supply member and the power supply member are connected to a charging controller, the charging controller is configured to control working states of the charging power supply member and the power supply member, an input end of a charging relay of the power supply member is connected to the common connection line, an output end of the charging relay is connected to a charger, and an output end of the charger is provided with a battery pack for charging a battery placed in the battery pack.
The national standard alternating current charging seat and the plug are connected with the public connection line sequentially through an air switch, a leakage protection switch and a charging power supply relay, and the charging power supply relay is connected with the charging controller.
The charging controller is characterized by further comprising a power selection knob, a stop knob and a charging indicator light, wherein the power selection knob is arranged on the charging controller, the charge indicator light is connected with the public connecting line, the power selection knob is used for controlling the charge power relay to start and control the national standard alternating current charging seat or the plug in the charge power component to supply power, the charging indicator light is used for conducting power-on indication on a corresponding line of the public connecting line, and the stop knob is used for controlling the charge power relay to stop supplying power.
The charging controller comprises an H-bridge control circuit and is used for driving an electronic lock to clamp a mechanical button on the charging gun to lock the charging gun on a national standard alternating current charging seat after the charging gun is normally connected, and actively controlling the electronic lock to unlock and release the charging gun after all batteries are charged or controlling the electronic lock to unlock and release the charging gun after at least one of a manual control instruction and a manual operation instruction is received.
The temperature detection control unit of the charging controller is used for detecting the temperature of the national standard alternating current charging seat, controlling and reducing the current carrying capacity of the power supply component after the temperature of the national standard alternating current charging seat is larger than or equal to a first temperature, controlling the power supply component to stop electric energy output after the temperature of the national standard alternating current charging seat is larger than or equal to a second temperature, controlling the current carrying capacity of the power supply component to recover a normal state after the temperature of the national standard alternating current charging seat is smaller than or equal to a third temperature, wherein the third temperature is larger than the first temperature, and the numerical value of the second temperature is sequentially increased.
The charging relay, the charger and the battery pack form a charging unit, the charging units form a charging bin, and the power supply component comprises at least one charging bin.
The charging system comprises a charging controller, a public connection line, a first storage battery charger, a second storage battery charger, a cabinet control relay, a direct current transformer and a second storage battery charger, wherein the first storage battery charger and the second storage battery charger are connected in parallel through the public connection line, the first storage battery charger is connected with a storage battery through a first fuse, the second storage battery charger is connected with the charging position through the cabinet control relay and the direct current transformer, the cabinet control relay is connected with the charging controller and used for receiving a command of the charging controller and controlling the charging position to charge or stop charging.
Wherein, a cabinet control device is arranged between the charging bin and the charging controller and is connected with the output end of the cabinet control relay, the charging bin is connected with the charging unit through a communication line, the cabinet control device is connected with the charging controller through a CAN bus, the charging bin reads the battery pack data through the communication line and reports the battery pack data to the cabinet control device and the charging controller through the CAN bus in combination with the charging bin, the cabinet control device outputs output data to the outside through a wireless communication module, and realizes the remote program upgrade of the battery pack by receiving an external control instruction, a cabinet control device and a control command for receiving the charging controller, and supplying power to the specified charging bin, stopping power or changing the charging priority of the specified battery pack of the charging bin.
In addition, the embodiment of the invention also provides a control method of the movable intelligent charging cabinet, which comprises the following steps:
s1, judging the power selection knob selects the closed national standard AC charging seat or plug of the charging power component corresponding to the charging power relay;
s2, judging the power-on condition according to the bus current, and acquiring the power-on state of the circuit corresponding to the cabinet control device through the CAN bus;
s3, combining the position of the power supply selection knob, and determining the current carrying capacity of the current charging power supply component according to CC \ CP or a set value;
s4, calculating and outputting the number of the battery packs capable of being charged simultaneously according to the current carrying capacity;
s5, acquiring all the battery pack data through a CAN bus, and carrying out priority sequencing on the rechargeable batteries;
s6, judging whether the battery pack allows operation charging or not;
if so, S7, controlling the charging relay corresponding to the battery pack to be closed, and controlling the charging quantity not to be larger than the allowable charging quantity, otherwise, S8, controlling the charging relay corresponding to the battery pack to be opened, and reporting the state of the battery pack and the state of a charging loop controlled by the cabinet control device to the charging controller through the CAN bus.
Wherein, after the S7, the method further comprises:
s9, detecting the temperature of the national standard AC charging seat which is running at present, and controlling to reduce the current carrying capacity of the power supply component according to the temperature of the charging seat after the temperature of the national standard AC charging seat is more than or equal to a first temperature;
and S10, controlling the power supply component to stop outputting electric energy after detecting that the temperature of the national standard alternating current charging seat is greater than or equal to a second temperature, and controlling the current carrying capacity of the power supply component to recover to a normal state after detecting that the temperature of the national standard alternating current charging seat is less than or equal to a third temperature, wherein the values of the third temperature, the first temperature and the second temperature are sequentially increased.
Compared with the prior art, the movable intelligent charging cabinet and the control system thereof provided by the embodiment of the invention have the following advantages:
according to the movable intelligent charging cabinet and the control system thereof provided by the embodiment of the invention, the charging power supply component and the power supply component connected with the charging power supply component through the public connecting wire are arranged in the charging cabinet main body, so that the battery placed in the battery pack can be charged and can be installed on a cargo vehicle for use in the use process, the replaced battery pack can be directly charged after the power supply is connected, the charging convenience is improved, the control is convenient and simple, the reliability is high, the fixation is not needed, the charging can be realized only by connecting the national standard alternating current charging seat or plug of the charging power supply component with a mains supply, the structure is simple, the structure cost is low, and the use cost is low.
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 introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic circuit structure diagram of a specific implementation of a mobile intelligent charging cabinet according to an embodiment of the present invention;
fig. 2 is a schematic circuit structure diagram of a charging power supply component of a mobile intelligent charging cabinet according to an embodiment of the present invention;
fig. 3 is a schematic circuit structure diagram of an embodiment of a common connection line portion of a movable intelligent charging cabinet according to an embodiment of the present invention;
fig. 4 is a schematic circuit structure diagram of a power supply component of a mobile intelligent charging cabinet according to an embodiment of the present invention;
fig. 5 is a schematic flowchart illustrating steps of a method for controlling a mobile intelligent charging cabinet according to an embodiment of the present invention;
fig. 6 is a schematic flowchart illustrating steps of another specific implementation of a control method for a mobile intelligent charging cabinet according to an embodiment of the present invention.
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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, fig. 1 is a schematic circuit structure diagram of a mobile intelligent charging cabinet according to an embodiment of the present invention; fig. 2 is a schematic circuit structure diagram of a charging power supply component of a mobile intelligent charging cabinet according to an embodiment of the present invention; fig. 3 is a schematic circuit structure diagram of an embodiment of a common connection line portion of a movable intelligent charging cabinet according to an embodiment of the present invention; fig. 4 is a schematic circuit structure diagram of a power supply component of a mobile intelligent charging cabinet according to an embodiment of the present invention; fig. 5 is a schematic flowchart illustrating steps of a method for controlling a mobile intelligent charging cabinet according to an embodiment of the present invention; fig. 6 is a schematic flowchart illustrating steps of another specific implementation of a control method for a mobile intelligent charging cabinet according to an embodiment of the present invention.
In a specific embodiment, the movable intelligent charging cabinet comprises a charging cabinet main body, a charging power supply member 10 arranged on the charging cabinet main body, and a power supply member 30 connected with the charging power supply member 10 through a common connection line 20, wherein the charging power supply member 10 comprises at least one of a national standard alternating current charging stand 11 and a plug 12, the charging power supply member 10 and the power supply member 30 are connected with a charging controller 40, the charging controller 40 is used for controlling the working states of the charging power supply member 10 and the power supply member 30, an input end of a charging relay 31 of the power supply member 30 is connected with the common connection line 20, an output end of the charging relay is connected with a charger, and an output end of the charger is provided with a battery pack for charging a battery placed in the battery pack.
Through with the charging source component 10, with the power supply component 30 that the charging source component 10 passes through public connecting wire 20 and connects sets up in the cabinet main part that charges, make in the use, can be to placing the battery of battery package charges the mountable and uses on the vehicle that carries cargo, can carry direct charging to the battery package that gets off of changing after inserting the power, the convenience of charging has been improved, control is convenient simple, the reliability is high, need not fix, only need exchange with commercial power connection in charging seat 11 or plug 12 through the national standard of charging source component 10, can realize charging, moreover, the steam generator is simple in structure, the structure cost is low, and use cost is low.
The charging power supply component 10 and the power supply component 30 are connected through the common connecting line 20, so that quick connection can be realized only by arranging corresponding connecting ports on the common connecting line 20, the connection process is simple, the connection efficiency is high, and the assembly process cost can be reduced.
In the invention, the public connecting line 20 can be leaked in the charging cabinet main body in an exposed manner, or can be arranged in a modularized manner, and only the port of the connecting end is exposed, so that the public connecting line 20 can be simply and quickly installed in the charging cabinet main body in use, in addition, in the manufacturing process, the public connecting line 20 can be integrally manufactured, the model and the color of the public connecting line 20 can be freely set, and in use, an assembler only needs to connect a corresponding interface.
The charging controller 40 of the present invention is used to control the whole charging point process, so that neither the charging power supply component 10 nor the power supply component 30 needs to be connected to the charging controller 40, thereby realizing the control of the whole charging process, not only controlling the charging of the battery by the power supply component 30, but also controlling the access of the external power supply.
In the invention, the national standard alternating current charging seat 11 is adopted to acquire electric energy, so that the whole mobile charging cabinet has higher universality, and batteries can be charged as long as the mobile charging cabinet can be used in places with national standard power supplies. In the installation process of the existing charging pile, the ground needs to be excavated for line arrangement and installation of the charging pile, the installation period is long, and the use cost is high. And more importantly, the method is hardly limited by regions, achieves the plug and play degree and is very convenient.
In the invention, for convenience of use, the national standard alternating current charging seat 11 and the plug 12 are generally arranged at the same time, the arrangement number of the charging seat is not limited, the charging seat is generally determined according to the charging requirement, and in the design, the charging seat can be designed and manufactured into different models according to the maximum charging requirement to meet different charging requirements.
The internal connection structure of the charging power supply workpiece is not limited, in one embodiment, the national standard alternating current charging seat 11 and the plug 12 are connected with the common connection line 20 through an air switch 13, a leakage protection switch 14 and a charging power supply relay 15 in sequence, and the charging power supply relay is connected with the charging controller 40.
Regardless of the national standard alternating current charging seat 11 or the plug 12, the charging power supply component 10 is connected with the public connection line 20 through the air switch 13, the leakage protection switch 14 and the charging power supply relay 15 in sequence, so that high reliability of the charging power supply component in use can be guaranteed, the charging power supply relay is connected with the charging controller 40, the power supply state can be manually controlled or controlled through a program through the charging controller 40, and the use reliability of the whole mobile charging cabinet is improved.
It should be noted that, in the present invention, the types and parameters of the air switch 13, the earth leakage protection switch 14, and the charging power supply relay 15 are not limited, and other equipment components besides the air switch and the earth leakage protection switch may be used for equipment protection, which is not limited in the present invention.
For further convenience of use, in one embodiment, the portable intelligent charging cabinet further includes a power selection knob provided in the charging controller 40 for controlling the national standard ac charging stand 11 or the plug 12 in the charging power supply member 10 to supply power by controlling the charging power relay 15 to be activated, a stop knob for controlling the state of stopping power supply by controlling the charging power relay 20, and a charging indicator connected to the public connection line 20.
Through adopting the outside to set up the knob, set up power selection knob, stop the knob and with the charge indicator that public connection line 20 is connected, outside personnel can select the power of intercommunication through power selection knob like this, select suitable connection power, can also be through stopping the knob, need maintain the circumstances such as after not using or breaking down, the disconnect power, just so can realize the security of equipment maintenance, and through the pilot lamp, can acquire the switch-on condition of power on the one hand, can also obtain specifically through different pilot lamps and select which way of power, whether the power that acquires through power selection knob is the same, the efficiency of management is improved, the power consumption security has been improved.
The invention does not limit the number of the power selection knob, the stop knob and the charging indicator light connected with the common connecting line 20, and can select the components with proper number and model according to the use requirement.
In order to solve the technical problem that the charging gun may be pulled out by an error operation during the charging process or may be pulled out by accident, so that the charging process becomes unreliable, in an embodiment, the charging controller 40 includes an H-bridge control circuit, and is configured to drive an electronic lock to clamp a mechanical button on the charging gun to lock the charging gun on the national standard ac charging stand 11 after the charging gun is normally connected, and actively control the electronic lock to unlock and release the charging gun or control the electronic lock to unlock and release the charging gun after at least one of a manual control instruction and a manual operation instruction is received after all batteries are charged.
Through H bridge control circuit, connect normal back at the rifle that charges, the mechanical button that the drive electronic lock blocked on the rifle that charges is in the rifle lock that charges is in on the national standard exchanges charging seat 11, the rifle that charges of the back side of accomplishing to charge, no longer charges to the battery, avoids causing the extravagant electric energy of overcharge to the battery, guarantees the security of charging, can let the operation personnel reassurance leave. After the batteries are fully charged, the charging cabinet is powered off actively or a stop button is manually clicked, the charging controller 40 controls the electronic lock to unlock, the charging gun is released, and the charging safety and controllability are improved.
It should be noted that, in the present invention, it is not limited to use the H-bridge control circuit to perform corresponding control, and other modes may also be used, for example, the charging gun is automatically locked during charging, and after the charging is detected to be completed, the charging gun is automatically powered off, so that the charging gun is in a non-power state, so that there is no situation that the charging gun is pulled out by a misoperation, or a worker actively switches to a stop state, so that the charging gun can complete a lock-down operation, or after the charging gun is powered off, the charging gun automatically enters a lock-down state, or a charging protection of the charging gun is performed by using other devices or methods, which is not limited in this respect.
Because in the charging process, the electric energy cannot be converted into the battery hundreds, the device can generate heat due to the heat effect, the temperature of the device rises, if the temperature of the device exceeds a certain length, the charging safety can be inevitably affected, for example, the charging efficiency is reduced, if in a normal condition, the charging can be carried out 2% per minute, but if the temperature is too high, the charging can be carried out less than 1% per minute, and even the charging can not be carried out. Furthermore, a fire may be caused by the temperature process of the device, or the device may be burned.
In order to solve the above technical problem, in an embodiment of the present invention, the portable intelligent charging cabinet further includes a temperature detection control unit disposed in the charging controller 40, and configured to detect a temperature of the international ac charging cradle 11, and control to reduce a current carrying capacity of the power supply member 30 after the temperature of the international ac charging cradle 11 is greater than or equal to a first temperature, control the power supply member 30 to stop outputting power after the temperature of the international ac charging cradle 11 is greater than or equal to a second temperature, and control the current carrying capacity of the power supply member 30 to return to a normal state after the temperature of the international ac charging cradle 11 is less than or equal to a third temperature, where values of the third temperature, the first temperature, and the second temperature sequentially increase.
The present invention does not limit the value of reducing the current carrying capacity of the power supply member 30 after the temperature reaches the first temperature, and may be an equal percentage reduction, such as making a difference between the first temperature and the second temperature, dividing into several uniform parts, reducing by one part in equal proportion when reaching a temperature limit, such as reducing by 20% after reaching the first part, reaching the second part, reducing by 40% of the maximum value after dividing into five parts, and so on. Alternatively, according to the fact that the loss caused by the higher temperature is more likely to be five parts, the first part is reduced by 10%, but the second part is reduced by 15%, the third part is reduced by 20%, the fourth part is reduced by 25%, the fifth part is reduced by 30%, or other reduction ratios are adopted, and the operator can set the reduction ratio according to the needs.
In addition, the values of the third temperature, the first temperature and the second temperature are not limited in the present invention.
The invention is limited in the current carrying capacity of the power supply and the calculation process.
In one embodiment, if the power supply is a national standard ac charging pile or charging gun, the charging control module calculates the cable capacity and whether the charging gun is completely connected according to the table look-up of CC to GND resistance, specifically according to GBT 18487.1-2015 table a.3, and calculates the charging current limiting value according to the table look-up of CP duty ratio, specifically according to GBT 18487.1-2015 table a.2. The resistance value of the CC to the GND is corresponding to the charging interface connecting pile body and the cable capacity and is shown in a table 1, and the mapping relation between the CP duty ratio and the charging current limit value is shown in a table 2. And the charging control module calculates the power supply current carrying capacity to be equal to the minimum value of the cable capacity and the charging current limit value after calculating the cable capacity and the charging current limit value.
TABLE 1 charging interface connection status and RC resistance value
TABLE 2 CP Duty ratio and charging current Limit mapping relationship
In one embodiment, if the temperature of the international AC charging stand 11 is greater than or equal to 85 deg.C, the current carrying capacity of the power supply is divided by 2 on a calculated basis, and if the temperature of the international AC charging stand 11 is greater than or equal to 90 deg.C, the charging controller 40 determines to stop charging. And when the temperature is lower than 80 ℃, the normal charging is resumed.
In the present invention, a plurality of batteries can be charged simultaneously, if the number of batteries is small, the management is easy, and if the number of batteries is crossed, the number of batteries reaches several tens, so that the management difficulty is increased, in order to improve the management efficiency, in one embodiment, one charging relay 31, one charger 32, and one battery 33 form one path of charging unit, a plurality of paths of charging units form one path of charging bin 34, and the power supply component 30 includes at least one path of charging bin 34.
The charging units form the charging bin of one channel, so that management can be realized according to the charging bin during management, design and manufacture can be performed according to the charging bin during structural design, and manufacturing efficiency and management efficiency are improved. When the charging device is installed, the charging bin can be completely used as a module for installation, and when the charging device is managed, the charging bin is used as a unit for management, so that the management difficulty is reduced.
In the present invention, the number of charging packs and the number of charging bays included in the charging bay are not limited.
In order to further improve the management efficiency, in one implementation, the mobile intelligent charging cabinet further includes a first battery charger 21 and a second battery charger 23 connected in parallel with the common connection line 20, the first battery charger 21 is connected to a battery 22 through a first fuse, the second battery charger 23 is connected to the charging bin 34 through a cabinet control relay 24 and a dc transformer 25, and the cabinet control relay 24 is connected to the charging controller 40 and configured to receive a command from the charging controller 40 and control the charging bin to perform charging or stop charging.
Through cabinet accuse relay with charge controller 40 is connected for receive charge controller 40's order, control charge the position of storehouse and charge or stop charging, realize the independent control to the position of storehouse that charges, and in the position of storehouse of charging, each way charging unit all contains charging relay 31, and the position of storehouse of charging is through controlling charging relay 31 for the charging process to the battery in each charging package is controlled, realizes high accuracy management and control. That is, in the present invention, the charge controller 40 can achieve precise control of the charging of the battery in each charge pack by direct or indirect.
To further facilitate management and data transfer, in one embodiment, a cabinet control device 35 connected to the output of the cabinet control relay between the charging bay and the charging controller 40, the charging bin is connected with the charging unit through a communication line, the cabinet control device is connected with the charging controller 40 through a CAN bus, the charging bin reads the battery pack data through the communication line and reports the battery pack data to the cabinet control device and the charging controller 40 through the CAN bus in combination with the charging bin, the cabinet control device 35 outputs output data to the outside through a wireless communication module, and realizes the remote program upgrade of the battery pack by receiving an external control command, a cabinet control device, and a control command for receiving the charge controller 40, and supplying power to the specified charging bin, stopping power or changing the charging priority of the specified battery pack of the charging bin.
The cabinet control device 35 is connected with the charging controller 40 through a CAN bus, so that data transmission and command transmission are realized, the charging controller 40 CAN obtain the charging state of the charging bin in real time, and CAN also send commands to the charging bin in real time, even the charging priorities of different charging bins in the century or the charging priorities of batteries in a certain battery pack in the same charging bin are changed.
For example, a battery may be required to be charged, but the current load is full, and if other batteries are taken out and then placed in the existing scheme, preferential charging may be achieved. On the one hand, other batteries need to be taken out, and on the other hand, the taken-out batteries need to be made to have space for placement, which is very inconvenient.
By adopting the scheme of changing the priority, other batteries do not need to be taken out, the batteries needing to be charged are only needed to be placed into the corresponding battery pack, and then the charging priority is set to be the highest, so that the batteries can be charged preferentially, the priorities of the other batteries can be reduced at the same time, the other batteries can be charged automatically after the batteries are charged, corresponding relays of the batteries can be disconnected after the batteries are charged, the power supply of the batteries is stopped, the other batteries can not be taken out and then placed in a preset space, and the convenience in charging is improved.
In one embodiment, each charging bin of the invention is provided with 4 paths of independent RS485, each path of RS485 corresponds to one path of charging unit so as to facilitate physical addressing, the charging bin is used as a host to read battery pack data and states through RS485 and then combined with the corresponding charging bin to report the battery pack data and states to the cabinet control and charging controller 40 through CAN communication, the cabinet control device reports the data to a platform through 4G, and a mobile phone APP CAN read the platform data through the internet. Meanwhile, remote program upgrading of the battery pack is realized through the platform, the cabinet control device and the charging bin.
Automatic charging management:
counting and sequencing rechargeable battery packs: the charging management module counts the number of the battery packs to be charged and the bin codes thereof by reading the data of the battery packs of the CAN bus and sorts the battery packs from small to large according to the SOC values of the battery packs.
Calculating the chargeable quantity: the maximum input power of the charger is 340W, the maximum input current can be calculated to be 340W/176V-1.932A, and the maximum support for charging the n-path chargers at the same time can be calculated according to the current carrying capacity.
Verifying the relation between the actual current and the current carrying according to the bus current, and then controlling the n + a charging relays 31 to be closed, wherein the calculation method comprises the following steps:
a ═ (current carrying capacity-bus current) ÷ single maximum input current;
if a 'is not less than 0, a is (a' is rounded);
if a '< 0, a { (a' -1) is rounded }.
Controlling charging: each charger has a charging relay 31 at its front end for controlling the connection of the charger to the power grid, and the charging controller 40 controls the charging relays 31 to charge the battery packs in the bins. When it is determined that the battery pack is fully charged, the charge control unit controls the corresponding charge relay 31 to be turned off.
Manual charging management:
calculating the chargeable quantity: in accordance with the above scheme, the charging controller 40 will automatically calculate the number of simultaneous charging and limit the number of manually activated rechargeable battery packs.
During the manual mode, the APP CAN start the battery pack which is expected to be charged by the operator one by one and charge the battery pack, the APP CAN send the charging starting battery pack sequence data to the cabinet control device, the cabinet control device sends the charging controller 40 through CAN communication, and the charging controller 40 carries out sequential charging.
When in the automatic mode, the operator can change the charging priority through the APP, if a battery pack is not charged temporarily, the operator wants to charge the battery pack limitedly, only the APP needs to click a charging button in the cabin area where the battery pack is located, the APP gives a charging control module through setting a data transmission path (the same), the charging controller 40 can promote the charging priority of the battery pack to the first position, and reduces 1 to all the priorities of the original battery pack in the front of the battery pack, and controls the charging relay 31 to charge the battery pack according to the newly arranged priorities.
In the present invention, if the power supply is the AC220V16A plug 12, the charging controller 40 directly calculates the power supply current carrying capacity to be 13A.
In addition, the embodiment of the invention also provides a control method of the movable intelligent charging cabinet, which comprises the following steps:
s1, judging the power selection knob selects the closed national standard AC charging seat or plug of the charging power component corresponding to the charging power relay; the current power selection is judged, and the corresponding charging relay is closed, which may be one or one of the national standard ac charging base or the plug, or two or more than two simultaneous selections, for example, the movable intelligent charging cabinet has two national standard ac charging bases and two plugs, and the two national standard ac charging bases and two plugs simultaneously select to work, and the invention is not limited to this.
S2, judging the power-on condition according to the bus current, and acquiring the power-on state of the circuit corresponding to the cabinet control device through the CAN bus; the bus current is judged by judging the power-on condition, data support is provided for subsequent calculation of chargeable quantity, the power-on state of a loop corresponding to the cabinet control device is obtained, the state of the corresponding charging bin is judged, and the charging can be carried out by judging which of the loops can be used.
S3, combining the position of the power supply selection knob, and determining the current carrying capacity of the current charging power supply component according to CC \ CP or a set value; the current carrying capacity is calculated, data support can be provided for the simultaneous work of the battery packs with the maximum number supported by subsequent calculation, the charging reliability is guaranteed, and the charging efficiency is improved.
S4, calculating and outputting the number of the battery packs capable of being charged simultaneously according to the current carrying capacity;
and calculating the chargeable quantity: the maximum input power of the charger is 340W, the maximum input current can be calculated to be 340W/176V-1.932A, and the maximum support for charging the n-path chargers at the same time can be calculated according to the current carrying capacity.
Verifying the relation between actual current and current carrying according to bus current, and then controlling n + a charging relays to be closed, wherein the calculation method comprises the following steps:
a ═ (current carrying capacity-bus current) ÷ single maximum input current;
if a 'is not less than 0, a is (a' is rounded);
if a '< 0, a { (a' -1) is rounded }.
S5, acquiring all the battery pack data through a CAN bus, and carrying out priority sequencing on the rechargeable batteries; the priority ranking here may be a temporary priority obtained by the charge controller, or may be a preset priority.
For example, there are 18 charging packs in total, but 10 charging packs are charged at the same time at most, so that the batteries in 10 of the charging packs can be charged first and then the remaining batteries can be charged according to the setting. If the charging can be less, it can be changed to multi-batch charging.
The setting of the priority in the present invention is not limited, and may be a temporary priority, such as a temporary need for a certain battery to be charged preferentially, or may be a setting according to the remaining power of the battery, such as preferentially charging the battery with the lowest power, or other preferential charging schemes, which is not limited in the present invention.
S6, judging whether the battery pack allows operation charging or not; after the priority setting is finished, the charging operation is executed again, and whether the corresponding battery pack runs for charging or not is judged, namely whether the corresponding battery pack has the corresponding priority or not is judged.
If so, S7, controlling the charging relay corresponding to the battery pack to be closed, and controlling the charging quantity not to be larger than the allowable charging quantity, otherwise, S8, controlling the charging relay corresponding to the battery pack to be opened, and reporting the state of the battery pack and the state of a charging loop controlled by the cabinet control device to the charging controller through the CAN bus.
And after judging that the battery pack has the corresponding charging priority, judging that the battery pack can be charged, closing the charging relay for charging, otherwise, disconnecting the charging relay, and reporting the charging state of the battery pack to the charging controller and the cabinet control device.
Since the control method of the movable intelligent charging cabinet is the control method corresponding to the movable intelligent charging cabinet, the control method has the same beneficial effects, and the detailed description of the control method is omitted.
In order to solve the technical problem, in an embodiment, after the S7, the method further includes:
s9, detecting the temperature of the national standard AC charging seat which is running at present, and controlling to reduce the current carrying capacity of the power supply component according to the temperature of the charging seat after the temperature of the national standard AC charging seat is more than or equal to a first temperature;
and S10, controlling the power supply component to stop outputting electric energy after detecting that the temperature of the national standard alternating current charging seat is greater than or equal to a second temperature, and controlling the current carrying capacity of the power supply component to recover to a normal state after detecting that the temperature of the national standard alternating current charging seat is less than or equal to a third temperature, wherein the values of the third temperature, the first temperature and the second temperature are sequentially increased.
In one embodiment, after the charging control device determines that the national standard charging pile is selected for charging, the charging control device detects the corresponding charging seat temperature in real time, if the national standard alternating current charging seat temperature is greater than or equal to 85 ℃, the current carrying capacity of the power supply is divided by 2 on the basis of the calculated value, and if the national standard alternating current charging seat temperature is greater than or equal to 90 ℃, the charging control device determines to stop charging. And when the temperature is lower than 80 ℃, the normal charging is resumed.
Besides, on the basis, the temperature can reach a certain degree, for example, in the scheme, the temperature of the national standard alternating current charging base is set to be more than or equal to 85 ℃, the current carrying capacity of the power supply is divided by 2 on the basis of calculation, but after the temperature of the national standard alternating current charging base is more than or equal to 60 ℃, a fan or an air conditioner is started to cool the national standard alternating current charging base, so that the temperature rise amplitude is reduced.
Besides the temperature reduction measures, the amplitude of temperature change, namely the speed of temperature rise in unit time can be detected, and if the temperature rise is too fast, the current carrying capacity of the power supply can be correspondingly reduced.
In summary, according to the mobile intelligent charging cabinet and the control system thereof provided by the embodiments of the present invention, the charging power supply member and the power supply member connected to the charging power supply member through the common connection line are disposed in the charging cabinet main body, so that in the use process, the battery placed in the battery pack can be charged and can be installed on a cargo vehicle for use, and the replaced battery pack can be directly charged after the power supply is connected, so that the charging convenience is improved, the control is convenient and simple, the reliability is high, no fixation is required, the charging can be realized only by connecting the national standard ac charging socket or plug of the charging power supply member with the mains supply, and the mobile intelligent charging cabinet and the control system thereof have the advantages of simple structure, low structure cost and low use cost.
The movable intelligent charging cabinet and the control system thereof provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a portable intelligent charging cabinet, its characterized in that is in including the cabinet main part that charges and setting the cabinet main part that charges the charging power component, with the power supply component that the charging power component passes through the public connecting wire and connects, the charging power component includes at least one in national standard interchange charging seat and the plug, the charging power component the power supply component is connected with charge controller, charge controller is used for controlling the charging power component the operating condition of power supply component, the input of the charging relay of power supply component with the public connecting wire is connected, and the output is connected with the charger, the output of charger is provided with the battery package for place the battery of battery package charges.
2. The portable intelligent charging cabinet according to claim 1, wherein the national standard ac charging base and the plug are connected to the common connection line sequentially through an air switch, a leakage protection switch and a charging power relay, and the charging power relay is connected to the charging controller.
3. The portable intelligent charging cabinet according to claim 2, further comprising a power selection knob provided at the charging controller for controlling the charging relay to start up to supply power to the national standard ac charging stand or the plug in the charging power member, a stop knob for controlling the charging relay to stop supplying power, and a charging indicator connected to the common connection line.
4. The portable intelligent charging cabinet as recited in claim 3, wherein the charging controller comprises an H-bridge control circuit, which is used for driving an electronic lock to lock a mechanical button on the charging gun to lock the charging gun on the national standard ac charging base after the charging gun is normally connected, and for actively controlling the electronic lock to unlock and release the charging gun after all batteries are charged or controlling the electronic lock to unlock and release the charging gun after at least one of a manual control command and a manual operation command is received.
5. The portable intelligent charging cabinet according to claim 4, further comprising a temperature detection control unit disposed in the charging controller, configured to detect a temperature of the international ac charging cradle, and control to reduce a current carrying capacity of the power supply component after the temperature of the international ac charging cradle is equal to or higher than a first temperature, control the power supply component to stop power output after the temperature of the international ac charging cradle is equal to or higher than a second temperature, and control the current carrying capacity of the power supply component to return to a normal state after the temperature of the international ac charging cradle is equal to or lower than a third temperature, wherein values of the third temperature, the first temperature, and the second temperature increase in sequence.
6. The portable intelligent charging cabinet according to claim 5, wherein one of the charging relays, one of the chargers, and one of the battery packs form a charging unit, a plurality of charging units form a charging bay, and the power supply unit includes at least one of the charging bays.
7. The portable intelligent charging cabinet according to claim 6, further comprising a first battery charger and a second battery charger connected in parallel with the common connection line, wherein the first battery charger is connected to a battery through a first fuse, the second battery charger is connected to the charging bay through a cabinet control relay and a dc transformer, and the cabinet control relay is connected to the charging controller and is configured to receive a command from the charging controller to control the charging bay to perform charging or stop charging.
8. The mobile intelligent charging cabinet according to claim 7, wherein a cabinet control device connected to an output terminal of the cabinet control relay is provided between the charging bay and the charging controller, the charging bin is connected with the charging unit through a communication line, the cabinet control device is connected with the charging controller through a CAN bus, the charging bin reads the battery pack data through the communication line and reports the battery pack data to the cabinet control device and the charging controller through the CAN bus in combination with the charging bin, the cabinet control device outputs output data to the outside through a wireless communication module, and realizes the remote program upgrade of the battery pack by receiving an external control instruction, a cabinet control device and a control command for receiving the charging controller, and supplying power to the specified charging bin, stopping power or changing the charging priority of the specified battery pack of the charging bin.
9. A control method for a movable intelligent charging cabinet is characterized by comprising the following steps:
s1, judging the power selection knob selects the closed national standard AC charging seat or plug of the charging power component corresponding to the charging power relay;
s2, judging the power-on condition according to the bus current, and acquiring the power-on state of the circuit corresponding to the cabinet control device through the CAN bus;
s3, combining the position of the power supply selection knob, and determining the current carrying capacity of the current charging power supply component according to CC \ CP or a set value;
s4, calculating and outputting the number of the battery packs capable of being charged simultaneously according to the current carrying capacity;
s5, acquiring all the battery pack data through a CAN bus, and carrying out priority sequencing on the rechargeable batteries;
s6, judging whether the battery pack allows operation charging or not;
if so, S7, controlling the charging relay corresponding to the battery pack to be closed, and controlling the charging quantity not to be larger than the allowable charging quantity, otherwise, S8, controlling the charging relay corresponding to the battery pack to be opened, and reporting the state of the battery pack and the state of a charging loop controlled by the cabinet control device to the charging controller through the CAN bus.
10. The mobile smart charging cabinet control method of claim 9, further comprising, after the S7:
s9, detecting the temperature of the national standard AC charging seat which is running at present, and controlling to reduce the current carrying capacity of the power supply component according to the temperature of the charging seat after the temperature of the national standard AC charging seat is more than or equal to a first temperature;
and S10, controlling the power supply component to stop outputting electric energy after detecting that the temperature of the national standard alternating current charging seat is greater than or equal to a second temperature, and controlling the current carrying capacity of the power supply component to recover to a normal state after detecting that the temperature of the national standard alternating current charging seat is less than or equal to a third temperature, wherein the values of the third temperature, the first temperature and the second temperature are sequentially increased.
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| CN202110245467.2A CN112886672A (en) | 2021-03-05 | 2021-03-05 | Portable intelligent charging cabinet and control system thereof |
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