CN115189056A - Control method, device and system for safe discharge of retired battery - Google Patents
Control method, device and system for safe discharge of retired battery Download PDFInfo
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- CN115189056A CN115189056A CN202210882699.3A CN202210882699A CN115189056A CN 115189056 A CN115189056 A CN 115189056A CN 202210882699 A CN202210882699 A CN 202210882699A CN 115189056 A CN115189056 A CN 115189056A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000007599 discharging Methods 0.000 claims abstract description 142
- 238000004364 calculation method Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 13
- 230000006872 improvement Effects 0.000 description 13
- 238000004590 computer program Methods 0.000 description 12
- 239000000243 solution Substances 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
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- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
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- 239000000428 dust Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010926 waste battery Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- 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
-
- 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
- H01M10/448—End of discharge regulating measures
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- 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
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
-
- 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
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
- H02J7/007186—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage obtained with the battery disconnected from the charge or discharge circuit
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a control method, a device and a system for safe discharge of a retired battery, wherein after a starting instruction of a user is received, a discharge starting signal is generated to control a battery discharging device to start discharging, a resistance switching value is obtained by analyzing an obtained discharge parameter, a resistance switching signal is generated, so that the discharge current of a target retired battery is controlled to be below a safe threshold value by adjusting the resistance value of a variable resistor connected with the target retired battery, when the discharge parameter of the target retired battery is identified to be smaller than a preset value, the completion of discharging is indicated, and a discharge stopping signal is generated to control the battery discharging device to stop discharging. According to the method and the device, the discharging parameters of the target retired battery are identified, and the resistance value of the variable resistor is adjusted according to the analysis result of the discharging parameters, so that the discharging efficiency of the battery is improved, and meanwhile, the discharging safety of the retired battery is also improved.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a method, a device and a system for controlling safe discharge of a retired battery.
Background
Under the background of carbon neutralization, the electric automobile and energy storage markets are rapidly rising. Along with the coming of the retired period of the power lithium ion battery and the constraint of lithium resources, the lithium battery recycling market has an increasing demand for performance detection, evaluation, grading and discharge equipment of the retired battery.
In the prior art, a plurality of problems exist in the aspect of recycling the retired battery. At present, the retired battery mostly adopts a brine soaking discharge method, the discharge time is long, and the efficiency is low. When the lithium battery is soaked in saline water, heavy metals in the lithium battery are easy to leak in the saline water, so that the environmental pollution is caused. In addition, the retired battery can be uniformly crushed, and the retired battery is not favorable for gradient utilization according to performance grades.
Therefore, a control strategy for safe discharge of the retired battery is needed to solve the problem of low discharge efficiency of the currently retired battery.
Disclosure of Invention
The embodiment of the invention provides a method, a device and a system for controlling safe discharge of a retired battery, which are used for improving the discharge efficiency of the retired battery.
In order to solve the above problems, an embodiment of the present invention provides a method for controlling safe discharge of a retired battery, including:
receiving an instruction of a user, generating a discharge starting signal, and sending the discharge starting signal to a battery discharging device so that the battery discharging device starts a discharging operation on a target retired battery according to the discharge starting signal; the target retired battery is connected to a preset battery discharging device for discharging;
acquiring discharge parameters of the target retired battery, generating a resistance switching signal according to the discharge parameters, and sending the resistance switching signal to a battery discharge device, so that the battery discharge device performs resistance value adjustment operation of a variable resistor connected with the target retired battery according to the resistance switching signal;
and when the discharge parameter of the target retired battery is smaller than a preset value, generating a discharge stop signal, and sending the discharge stop signal to a battery discharge device, so that the battery discharge device stops the discharge operation of the target retired battery according to the discharge stop signal.
Therefore, the invention has the following beneficial effects:
the invention provides a control method for safe discharge of a retired battery, which comprises the steps of generating a discharge starting signal to control a battery discharge device to start discharging after receiving a starting instruction of a user, analyzing obtained discharge parameters to obtain a resistance switching value, generating a resistance switching signal, adjusting the resistance value of a variable resistor connected with a target retired battery, controlling the discharge current of the target retired battery to be below a safe threshold value, and when the discharge parameters of the target retired battery are identified to be smaller than a preset value, indicating that the discharging is finished, and generating a discharge stopping signal to control the battery discharge device to stop discharging. According to the method and the device, the discharging parameters of the target retired battery are identified, and the resistance value of the variable resistor is adjusted according to the analysis result of the discharging parameters, so that the discharging efficiency of the battery is improved, and meanwhile, the discharging safety of the retired battery is also improved.
As an improvement of the above scheme, the obtaining of the discharge parameter of the target retired battery and the generating of the resistance switching signal according to the discharge parameter specifically include:
acquiring discharge parameters of the target retired battery; wherein the discharge parameters include: voltage data and current data of the target decommissioned battery;
calculating to obtain a target resistance value through a preset current safety threshold according to the voltage data;
and generating a resistance switching signal according to the target resistance value.
By implementing the improved scheme of the embodiment, the embodiment calculates and obtains the target resistance value by analyzing the voltage data and the current safety threshold in the discharge parameters, and generates the resistance switching signal according to the target resistance value, thereby laying a foundation for ensuring the safe and efficient discharge of the battery discharge device.
As an improvement of the above scheme, the battery discharging device performs a resistance value adjustment operation of the variable resistor connected to the target retired battery according to the resistance switching signal, specifically:
the battery discharging device acquires the current resistance value of the variable resistor;
and the battery discharging device adjusts the resistance value of the variable resistor from the current resistance value to the target resistance value by controlling the resistance area of the variable resistor access circuit according to the resistance switching signal.
According to the improvement scheme of the embodiment, the battery discharging device acquires the current resistance value of the variable resistor constantly, and after the resistance switching signal is received, the resistance area of the variable resistor access circuit is adjusted, so that the resistance value of the variable resistor used for battery discharging is the target resistance value obtained through calculation. According to the embodiment, the discharging resistance value of the battery is adjusted according to the voltage value change, and the discharging efficiency of the battery is improved.
As an improvement of the above solution, the present embodiment further includes:
acquiring the surface temperature of the target retired battery;
identifying the temperature value of the surface temperature, and calculating to obtain the position information of the target retired battery when the temperature value of the surface temperature is greater than a temperature threshold value;
acquiring the discharge loop number of the target retired battery according to the position information;
and generating an emergency stop signal according to the discharge loop number, and sending the emergency stop signal to a battery discharge device so that the battery discharge device stops the discharge operation of the target retired battery according to the emergency stop signal.
By implementing the improved scheme of the embodiment, the surface temperature of the target retired battery in the discharging process is detected, when the temperature of the target retired battery is too high, the discharging loop number of the target retired battery is obtained by obtaining the position information of the target retired battery, and an emergency stop signal is generated according to the discharging loop number, so that the discharging stop of the target retired battery is controlled, safety accidents such as fire disasters caused by too high temperature are avoided, and the discharging safety of the retired battery is improved.
As an improvement of the above solution, the preset battery discharging apparatus includes: the device comprises a variable resistor, a resistance value controller, a contactor, a repeater, a button and an indicator light; wherein the relay is connected to the variable resistor, the resistance controller, the contactor, the relay, the button, and the indicator light, respectively; and the variable resistor is connected with the resistance value controller.
By implementing the improved scheme of the embodiment, the embodiment performs the discharging operation of the target retired battery through the preset battery discharging device, performs the resistance value adjustment of the battery discharging through the variable resistor and the resistance value controller, and sets a favorable condition for the battery discharging, thereby improving the efficiency of the battery discharging.
Correspondingly, an embodiment of the present invention further provides a device for controlling safe discharge of a retired battery, including: the system comprises a first control module, a second control module and a third control module;
the first control module is used for receiving an instruction of a user, generating a discharge starting signal and sending the discharge starting signal to the battery discharging device so that the battery discharging device starts a discharging operation on a target retired battery according to the discharge starting signal; the target retired battery is connected to a preset battery discharging device for discharging;
the second control module is used for acquiring the discharge parameters of the target retired battery, generating a resistance switching signal according to the discharge parameters, and sending the resistance switching signal to a battery discharge device, so that the battery discharge device performs resistance value adjustment operation of a variable resistor connected with the target retired battery according to the resistance switching signal;
and the third control module is used for generating a discharge stop signal when the discharge parameter of the target retired battery is smaller than a preset value, and sending the discharge stop signal to the battery discharge device, so that the battery discharge device stops the discharge operation of the target retired battery according to the discharge stop signal.
As an improvement of the above scheme, the obtaining a discharge parameter of the target retired battery, and generating a resistance switching signal according to the discharge parameter specifically includes:
acquiring discharge parameters of the target retired battery; wherein the discharge parameters include: voltage data and current data of the target decommissioned battery;
calculating to obtain a target resistance value through a preset current safety threshold according to the voltage data;
and generating a resistance switching signal according to the target resistance value.
As an improvement of the above scheme, the battery discharging device performs a resistance value adjustment operation of the variable resistor connected to the target retired battery according to the resistance switching signal, specifically:
the battery discharging device acquires the current resistance value of the variable resistor;
and the battery discharging device adjusts the resistance value of the variable resistor from the current resistance value to the target resistance value by controlling the resistance area of the variable resistor access circuit according to the resistance switching signal.
As an improvement of the above scheme, the present embodiment further includes: a fourth control module; the fourth control module includes: the device comprises an acquisition unit, a calculation unit, a matching unit and a control unit;
the acquisition unit is used for acquiring the surface temperature of the target retired battery;
the calculation unit is used for identifying the temperature value of the surface temperature, and when the temperature value of the surface temperature is greater than a temperature threshold value, calculating and obtaining the position information of the target retired battery;
the matching unit is used for acquiring the discharge loop number of the target retired battery according to the position information;
and the control unit is used for generating an emergency stop signal according to the discharge loop number and sending the emergency stop signal to the battery discharge device so that the battery discharge device stops the discharge operation of the target retired battery according to the emergency stop signal.
As an improvement of the above solution, the preset battery discharging apparatus includes: the device comprises a variable resistor, a resistance value controller, a contactor, a repeater, a button and an indicator light; wherein the relay is connected to the variable resistor, the resistance controller, the contactor, the relay, the button, and the indicator lamp, respectively; and the variable resistor is connected with the resistance value controller.
Correspondingly, an embodiment of the present invention further provides a system for controlling safe discharge of a retired battery, including: the device comprises a control device for safe discharge of retired batteries, a plurality of discharge devices, a battery placing frame, a movable infrared camera, a connecting wire harness and a plurality of target retired batteries; the control device for the safe discharge of the retired battery is applied to the control device for the safe discharge of the retired battery; the discharging devices are placed on the battery placing frame; the control device for safe discharge of the retired battery is connected with the discharge devices and the mobile infrared camera through the connecting wire harness; and the plurality of discharging devices are respectively connected with the plurality of target retired batteries in a one-to-one correspondence manner.
Drawings
Fig. 1 is a schematic flowchart of a method for controlling safe discharge of a retired battery according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a control device for safely discharging a retired battery according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating voltage variations in safe discharge of a back-off battery according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a control system for safely discharging a retired battery according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a control system for safely discharging a retired battery according to another embodiment of the present invention;
fig. 6 is a schematic distribution diagram of a control system for safely discharging a retired battery according to an embodiment of the present invention;
fig. 7 is a schematic distribution diagram of a control system for safely discharging a retired battery according to another embodiment of the present invention;
fig. 8 is a schematic structural diagram of a terminal device according to another 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.
Example one
Referring to fig. 1, fig. 1 is a schematic flow chart of a control method for safe discharge of a retired battery according to an embodiment of the present invention, as shown in fig. 1, the embodiment includes steps 101 to 103, and each step specifically includes the following steps:
step 101: receiving an instruction of a user, generating a discharge starting signal, and sending the discharge starting signal to a battery discharge device so that the battery discharge device starts a discharge operation on a target retired battery according to the discharge starting signal; and the target retired battery is connected to a preset battery discharging device for discharging.
In a specific embodiment, the PLC controller is used for executing the control method for safe discharge of the retired battery, and a Siemens 1200 series PLC is adopted, so that real-time voltage values of all batteries can be scanned, and resistance switching of a variable resistor can be realized.
Step 102: and acquiring the discharge parameters of the target retired battery, generating a resistance switching signal according to the discharge parameters, and sending the resistance switching signal to a battery discharge device, so that the battery discharge device performs resistance value adjustment operation of a variable resistor connected with the target retired battery according to the resistance switching signal.
In this embodiment, the obtaining a discharge parameter of the target retired battery, and generating a resistance switching signal according to the discharge parameter specifically includes:
acquiring discharge parameters of the target retired battery; wherein the discharge parameters include: voltage data and current data of the target decommissioned battery;
calculating to obtain a target resistance value through a preset current safety threshold according to the voltage data;
and generating a resistance switching signal according to the target resistance value.
In this embodiment, the battery discharging device performs a resistance value adjustment operation of the variable resistor connected to the target retired battery according to the resistance switching signal, specifically:
the battery discharging device acquires the current resistance value of the variable resistor;
and the battery discharging device adjusts the resistance value of the variable resistor from the current resistance value to a target resistance value by controlling the resistance area of the variable resistor access circuit according to the resistance switching signal.
In a specific embodiment, if the variable resistor is set as a slide rheostat, after a resistor switching signal is received, the current resistance value and the target resistance value are compared to judge and control the slide to move left or right, so that the telescopic rod is controlled to move forward or backward, the slide is moved for a specified distance, and the resistance value of the variable resistor access circuit is adjusted.
In a specific embodiment, if the variable resistor is set as a rotary rheostat, after a resistor switching signal is received, the left rotation or the right rotation of the lower contact is judged and controlled by comparing the current resistance value with a target resistance value, so that the contact is rotated by a designated angle in a manner of controlling the connecting shaft to rotate clockwise or anticlockwise, and therefore the resistance value adjustment of the variable resistor access circuit is achieved.
In one embodiment, referring to FIG. 3, the voltage is stepped down over time as shown in FIG. 3. Fast voltage drop inflection point: 2.83V, voltage rapid drop position: 1.6V, voltage drop to steady-state knee: 0.7829V, voltage fast fall time: 14min;
the discharge control target is constant current discharge, namely, the discharge current is controlled to be below a set safe current, and meanwhile, the system adjusts the resistance value of the discharge resistor in real time according to the change of the discharge voltage, so that the discharge current is guaranteed to be improved on the premise of safety, and the discharge efficiency is improved.
Step 103: when the discharge parameter of the target retired battery is smaller than a preset value, generating a discharge stop signal, and sending the discharge stop signal to a battery discharge device, so that the battery discharge device stops the discharge operation of the target retired battery according to the discharge stop signal;
in this embodiment, this embodiment further includes:
acquiring the surface temperature of the target retired battery;
identifying the temperature value of the surface temperature, and calculating to obtain the position information of the target retired battery when the temperature value of the surface temperature is greater than a temperature threshold value;
acquiring the discharge loop number of the target retired battery according to the position information;
and generating an emergency stop signal according to the discharge loop number, and sending the emergency stop signal to a battery discharge device so that the battery discharge device stops the discharge operation of the target retired battery according to the emergency stop signal.
In a specific embodiment, the present embodiment performs real-time monitoring on the target retired battery through the movable infrared camera, and sets the monitoring position according to the obtained shooting picture by fixing the monitoring position: according to the pixel position information of each target retired battery in the shot picture, determining a loop corresponding to each pixel position information in the shot picture, and numbering the loops;
the mobile infrared camera monitors the target retired battery, when the temperature of the target retired battery is identified to exceed a temperature threshold value (80 ℃), the abnormal area of a shot picture is compared, pixel position information is obtained through analysis, a number corresponding to a loop is determined, an emergency stop signal of the loop corresponding to the number is generated through the PLC, the target retired battery is controlled to stop discharging, and discharging accidents caused by overhigh temperature are avoided.
In a specific embodiment, after the emergency stop signal of the loop corresponding to the serial number is generated by the PLC, an alarm signal and a cooling signal are generated, so that the alarm gives an alarm according to the alarm signal, and the ventilation fan is cooled by increasing the power according to the cooling signal.
In a specific embodiment, no waste gas, waste water or waste residue is generated in the discharging link, so that the structural integrity of the waste battery is maintained, and the disassembling link is facilitated.
In this embodiment, the preset battery discharging apparatus includes: the device comprises a variable resistor, a resistance value controller, a contactor, a repeater, a button and an indicator light; wherein the relay is connected to the variable resistor, the resistance controller, the contactor, the relay, the button, and the indicator lamp, respectively; and the variable resistor is connected with the resistance value controller.
Correspondingly, as shown in fig. 4, an embodiment of the present invention further provides a system for controlling safe discharge of a retired battery, including: the system comprises a control device 401 for safe discharge of retired batteries, a plurality of discharge devices 402, a battery placing frame 403, a mobile infrared camera 404, a connecting wire harness 405 and a plurality of target retired batteries 406; the control device 401 for safely discharging the retired battery is applied to the control device for safely discharging the retired battery according to the invention; the plurality of discharging devices 402 are placed on the battery placing rack 403; the control device 401 for safely discharging the retired battery is connected with the plurality of discharging devices 402 and the mobile infrared camera 404 through the connecting wire harness 405; and a plurality of the discharging devices 402 are respectively connected with a plurality of the target retired batteries 406 in a one-to-one correspondence manner.
In one specific embodiment, the system can meet the requirement that 160 batteries are discharged simultaneously, so that the number of the discharging devices is 160, and the voltage of the discharged batteries is not more than 10V. The system adopts variable resistance discharge, and 160 variable resistors are arranged in the discharge device in total. The discharging system adopts batch modular processing, 10-20 batteries can be discharged in the same batch, the control device for safely discharging the retired batteries monitors the discharging parameters of each discharging device in a scanning mode, the batch of the discharging device to be adjusted is mainly monitored according to the change characteristics, and meanwhile, the independent batteries in the discharging device are judged and analyzed, and the discharging resistance value corresponding to the discharging device is adjusted in real time.
In a specific embodiment, the control device for safe discharge of the retired batteries comprises one touch screen and is used for displaying the current voltage value of each retired battery, alarm of overhigh/overlow voltage value, alarm of poor discharge contact, alarm of equipment operation failure and the like.
For better explanation, please refer to fig. 5, fig. 5 is a schematic structural diagram of a control system for safe discharge of a retired battery according to another embodiment of the present invention, and as shown in the figure, the control system for safe discharge of a retired battery includes: the battery pack comprises a battery pack frame (1) (such as a battery placing frame), a discharger (2) (such as a discharging device), a PLC (3) (such as a control device for safe discharging of a retired battery), a bolt (4), an indicator lamp (5), a control wire harness (6) (such as a connecting wire harness), and an infrared camera (7) (such as a mobile infrared camera); the discharger (2) and the bolt (4) are used for fixing the retired battery, and the indicator lamp (5) is used for indicating the discharging state of the retired battery.
For better illustration, please refer to fig. 6, fig. 6 is a distribution diagram of a control system for safe discharging of a retired battery according to an embodiment of the present invention, wherein a console 601 and a battery discharging device 603 are disposed in two rooms, a buffer area is disposed in the middle of the rooms, and a wiring harness 602 is disposed on a drilled hole in the wall of the room to connect the console 601 and the battery discharging device 603.
In a specific embodiment, all discharge resistors are installed in a resistor cabinet in a discharge room, and the resistors generate heat during the discharge process of the battery, so that the temperature is high, and people need to be prevented from being scalded. The discharge room should be done with measures of dust prevention, water prevention, ventilation and temperature reduction.
For better illustration, please refer to fig. 7, fig. 7 is a distribution diagram of a control system for safely discharging a retired battery according to another embodiment of the present invention.
After the discharging operation is started according to the instruction sent by the user, the resistance switching signal is generated by acquiring the discharging parameter of the target retired battery, so that the resistance value of the variable resistor connected with the target retired battery is adjusted by the battery discharging device, the steady-current discharging is realized, and the discharging efficiency of the retired battery is improved; when the discharging parameter of the identified target retired battery is smaller than the preset value, a discharging stop signal is sent out to control the battery discharging device to stop discharging, and when the temperature of the identified target retired battery is over the preset value, an emergency stop signal is sent out to control the battery discharging device to stop discharging emergently, so that the safety of the retired battery is improved. The distribution setting of each device in the control system of the safe discharge of the retired battery is adopted in the embodiment, so that the discharge stability and safety of the retired battery are improved, the safety accidents can be well avoided, and the discharge safety of the retired battery is guaranteed.
Example two
Referring to fig. 2, fig. 2 is a schematic structural diagram of a control apparatus for safe discharge of a retired battery according to an embodiment of the present invention, including: a first control module 201, a second control module 202 and a third control module 203;
the first control module 201 is configured to receive an instruction of a user, generate a discharge start signal, and send the discharge start signal to a battery discharge device, so that the battery discharge device starts a discharge operation on a target retired battery according to the discharge start signal; the target retired battery is connected to a preset battery discharging device for discharging;
the second control module 202 is configured to obtain a discharge parameter of the target retired battery, generate a resistance switching signal according to the discharge parameter, and send the resistance switching signal to a battery discharging device, so that the battery discharging device performs a resistance value adjustment operation on a variable resistor connected to the target retired battery according to the resistance switching signal;
the third control module 203 is configured to generate a discharge stop signal when the discharge parameter of the target retired battery is smaller than a preset value, and send the discharge stop signal to a battery discharge device, so that the battery discharge device stops a discharge operation on the target retired battery according to the discharge stop signal.
As an improvement of the above scheme, the obtaining of the discharge parameter of the target retired battery and the generating of the resistance switching signal according to the discharge parameter specifically include:
acquiring discharge parameters of the target retired battery; wherein the discharge parameters include: voltage data and current data of the target decommissioned battery;
calculating to obtain a target resistance value through a preset current safety threshold according to the voltage data;
and generating a resistance switching signal according to the target resistance value.
As an improvement of the above scheme, the battery discharging device performs a resistance value adjustment operation of a variable resistor connected to the target retired battery according to the resistance switching signal, specifically:
the battery discharging device acquires the current resistance value of the variable resistor;
and the battery discharging device adjusts the resistance value of the variable resistor from the current resistance value to the target resistance value by controlling the resistance area of the variable resistor access circuit according to the resistance switching signal.
As an improvement of the above scheme, the present embodiment further includes: a fourth control module 204; the fourth control module 204 includes: the device comprises an acquisition unit, a calculation unit, a matching unit and a control unit;
the acquisition unit is used for acquiring the surface temperature of the target retired battery;
the calculation unit is used for identifying the temperature value of the surface temperature, and when the temperature value of the surface temperature is greater than a temperature threshold value, calculating and obtaining the position information of the target retired battery;
the matching unit is used for acquiring the discharge loop number of the target retired battery according to the position information;
and the control unit is used for generating an emergency stop signal according to the discharge loop number and sending the emergency stop signal to the battery discharge device so that the battery discharge device stops the discharge operation of the target retired battery according to the emergency stop signal.
As an improvement of the above solution, the preset battery discharging apparatus includes: the device comprises a variable resistor, a resistance value controller, a contactor, a repeater, a button and an indicator light; wherein the relay is connected to the variable resistor, the resistance controller, the contactor, the relay, the button, and the indicator lamp, respectively; and the variable resistor is connected with the resistance value controller.
In the embodiment, the starting module generates the discharging starting signal to control the battery discharging device to discharge the target retired battery, the adjusting module obtains the power generation parameter of the target retired battery, and then analyzes and obtains the resistance switching signal, so that the resistance value of the variable resistor connected with the target retired battery is changed, the current value in the discharging circuit of the target retired battery is adjusted, and when the stopping module identifies that the discharging parameter is smaller than the preset value, the discharging is finished, and the discharging stopping signal is generated to stop the battery discharging device from discharging, so that the discharging of the target retired battery is finished. The embodiment improves the discharging efficiency and safety of the battery by controlling the resistance value change of the variable resistor. Meanwhile, the emergency stop module detects the discharge temperature of the target retired battery, identifies the position of the target retired battery with too high temperature, and generates an emergency stop signal. So that the battery discharging device can stop discharging in an emergency, and the safety of battery discharging is further improved.
EXAMPLE III
Referring to fig. 8, fig. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
A terminal device of this embodiment includes: a processor 801, a memory 802, and computer programs stored in the memory 802 and executable on the processor 801. The processor 801, when executing the computer program, implements the steps of the above-mentioned control method for safely discharging the retired battery in an embodiment, for example, all the steps of the control method for safely discharging the retired battery shown in fig. 1. Alternatively, the processor 801, when executing the computer program, implements the functions of the modules in the foregoing device embodiments, for example: all the modules of the control device for safely discharging the retired battery shown in fig. 2.
In addition, an embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program, where when the computer program runs, a device in which the computer-readable storage medium is located is controlled to execute the control method for safely discharging the retired battery according to any of the above embodiments.
It will be appreciated by those skilled in the art that the schematic diagram is merely an example of a terminal device and does not constitute a limitation of the terminal device, and may include more or fewer components than shown, or some components may be combined, or different components, e.g., the terminal device may also include input output devices, network access devices, buses, etc.
The Processor 801 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general processor may be a microprocessor or the processor may be any conventional processor or the like, and the processor 801 is the control center of the terminal device and various interfaces and lines are used to connect the various parts of the whole terminal device.
The memory 802 may be used for storing the computer programs and/or modules, and the processor 801 may implement various functions of the terminal device by running or executing the computer programs and/or modules stored in the memory and calling data stored in the memory 802. The memory 802 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
Wherein, the terminal device integrated module/unit can be stored in a computer readable storage medium if it is implemented in the form of software functional unit and sold or used as a stand-alone product. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, read-Only Memory (ROM), random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like.
It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection therebetween, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement without inventive effort.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A control method for safe discharge of a retired battery is characterized by comprising the following steps:
receiving an instruction of a user, generating a discharge starting signal, and sending the discharge starting signal to a battery discharging device so that the battery discharging device starts a discharging operation on a target retired battery according to the discharge starting signal; the target retired battery is connected to a preset battery discharging device for discharging;
acquiring discharge parameters of the target retired battery, generating a resistance switching signal according to the discharge parameters, and sending the resistance switching signal to a battery discharge device, so that the battery discharge device performs resistance value adjustment operation of a variable resistor connected with the target retired battery according to the resistance switching signal;
and when the discharge parameter of the target retired battery is smaller than a preset value, generating a discharge stop signal, and sending the discharge stop signal to a battery discharge device, so that the battery discharge device stops the discharge operation of the target retired battery according to the discharge stop signal.
2. The method according to claim 1, wherein the step of obtaining a discharge parameter of the target retired battery and generating a resistance switching signal according to the discharge parameter comprises:
acquiring discharge parameters of the target retired battery; wherein the discharge parameters include: voltage data and current data of the target decommissioned battery;
calculating to obtain a target resistance value through a preset current safety threshold according to the voltage data;
and generating a resistance switching signal according to the target resistance value.
3. The method for controlling the safe discharge of the retired battery according to claim 2, wherein the battery discharging device performs a resistance value adjustment operation of a variable resistor connected to the target retired battery according to the resistance switching signal, specifically:
the battery discharging device acquires the current resistance value of the variable resistor;
and the battery discharging device adjusts the resistance value of the variable resistor from the current resistance value to the target resistance value by controlling the resistance area of the variable resistor access circuit according to the resistance switching signal.
4. The method for controlling the safe discharge of the retired battery according to claim 1, further comprising:
acquiring the surface temperature of the target retired battery;
identifying the temperature value of the surface temperature, and calculating to obtain the position information of the target retired battery when the temperature value of the surface temperature is greater than a temperature threshold value;
acquiring the discharge loop number of the target retired battery according to the position information;
and generating an emergency stop signal according to the discharge loop number, and sending the emergency stop signal to a battery discharge device so that the battery discharge device stops the discharge operation of the target retired battery according to the emergency stop signal.
5. The method for controlling the safe discharge of the retired battery according to claim 1, wherein the preset battery discharging device comprises: the device comprises a variable resistor, a resistance value controller, a contactor, a repeater, a button and an indicator light; wherein the relay is connected to the variable resistor, the resistance controller, the contactor, the relay, the button, and the indicator lamp, respectively; and the variable resistor is connected with the resistance value controller.
6. A control device for safe discharge of a retired battery is characterized by comprising: the system comprises a first control module, a second control module and a third control module;
the first control module is used for receiving an instruction of a user, generating a discharge starting signal and sending the discharge starting signal to the battery discharging device so that the battery discharging device starts a discharging operation on a target retired battery according to the discharge starting signal; the target retired battery is connected to a preset battery discharging device for discharging;
the second control module is used for acquiring the discharge parameters of the target retired battery, generating a resistance switching signal according to the discharge parameters, and sending the resistance switching signal to a battery discharge device, so that the battery discharge device performs resistance value adjustment operation of a variable resistor connected with the target retired battery according to the resistance switching signal;
and the third control module is used for generating a discharge stop signal when the discharge parameter of the target retired battery is smaller than a preset value, and sending the discharge stop signal to the battery discharge device, so that the battery discharge device stops the discharge operation of the target retired battery according to the discharge stop signal.
7. The device for controlling the safe discharge of the retired battery according to claim 6, wherein the obtaining of the discharge parameter of the target retired battery and the generating of the resistance switching signal according to the discharge parameter are specifically:
acquiring discharge parameters of the target retired battery; wherein the discharge parameters include: voltage data and current data of the target decommissioned battery;
calculating to obtain a target resistance value through a preset current safety threshold according to the voltage data;
and generating a resistance switching signal according to the target resistance value.
8. The device for controlling the safe discharge of the retired battery according to claim 7, wherein the battery discharging device performs a resistance value adjustment operation of a variable resistor connected to the target retired battery according to the resistance switching signal, specifically:
the battery discharging device acquires the current resistance value of the variable resistor;
and the battery discharging device adjusts the resistance value of the variable resistor from the current resistance value to a target resistance value according to the resistance switching signal.
9. The control device for safely discharging the retired battery according to claim 6, further comprising: an emergency stop module; the emergency stop module includes: the device comprises an acquisition unit, a calculation unit, a matching unit and a control unit;
the acquisition unit is used for acquiring the surface temperature of the target retired battery;
the calculation unit is used for identifying the temperature value of the surface temperature, and calculating and obtaining the position information of the target retired battery when the temperature value of the surface temperature is greater than a temperature threshold value;
the matching unit is used for acquiring the discharge loop number of the target retired battery according to the position information;
and the control unit is used for generating an emergency stop signal according to the discharge loop number and sending the emergency stop signal to the battery discharge device so as to enable the battery discharge device to stop the discharge operation of the target retired battery according to the emergency stop signal.
10. A system for controlling the safe discharge of a decommissioned battery, comprising: the device comprises a control device for safe discharge of retired batteries, a plurality of discharge devices, a battery placing frame, a movable infrared camera, a connecting wire harness and a plurality of target retired batteries; the control device for the safe discharge of the retired battery is applied to the control device for the safe discharge of the retired battery according to any one of claims 6 to 9; the discharging devices are placed on the battery placing frame; the control device for safe discharge of the retired battery is connected with the discharge devices and the mobile infrared camera through the connecting wire harness; and the plurality of discharging devices are respectively connected with the plurality of target retired batteries in a one-to-one correspondence manner.
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