CN201663206U - Battery disposal device - Google Patents
Battery disposal device Download PDFInfo
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- CN201663206U CN201663206U CN2009201745995U CN200920174599U CN201663206U CN 201663206 U CN201663206 U CN 201663206U CN 2009201745995 U CN2009201745995 U CN 2009201745995U CN 200920174599 U CN200920174599 U CN 200920174599U CN 201663206 U CN201663206 U CN 201663206U
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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
- 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
Abstract
A battery disposal device comprises: a current conversion unit that generates direct current with variable current parameters, a current supply unit for controlling the current conversion unit to provide direct current for a battery, a detection unit detecting the state of the battery, a discharging unit for controlling the battery to discharge electricity to a load, a control unit that controls the current supply unit to charge or repair the battery according to a received instruction, and controls the discharging unit to discharge the electricity of the battery, and a main control unit that receives the detected state of the battery and sends an instruction to the control unit. The battery disposal device can improve the repair efficiency of batteries.
Description
The application requires to submit the priority that Patent Office of the People's Republic of China, application number are 200920210796.8, the utility model name is called the Chinese patent application of " battery disposal device " on October 12nd, 2009, and its full content is by reference in conjunction with in this application.
Technical field
The utility model relates to and is used for the battery disposal device that battery is repaired.
Background technology
The battery sulfuration is meant that lead acid accumulator in use, can produce the lead sulfate crystalline solid during discharge, if often being in the long-term placement of an over-discharge or discharge back does not charge, perhaps undercharge continues use etc., lead sulfate is saturation condition and forms crystallization in solution, in the course of time crystalline solid becomes big thickening attached on the negative plate, causes internal resistance to increase, and fills insatiable hunger.The battery sulfuration can cause battery capacity to reduce, internal short-circuit, and the damage pole plate, problem such as overheated easily during charging, even can cause the permanent inefficacy of battery.
Existing battery desulfurization method is mainly to add chemical agent, it has changed the chemical composition of primary cell, can produce new chemicrystallization salt precipitation, in case service time is longer, battery will produce chemical reaction and lose efficacy, and finally causes battery permanent dead and can't repair.
Chinese patent ZL00811093.X discloses the methods, devices and systems that a kind of battery recycling is handled, storage battery is applied in the variation direct voltage from charhing unit, during with pulse current charge, charging is intermittently interrupted by no current, and direct voltage is enough to produce gas in storage battery.Yet, owing to failing to be convened for lack of a quorum, intermittently interrupted the direct current that puts on storage battery by no current, and this mode can't be judged the degradation of battery in advance and give different direct currents according to different states of cure (vulcanization), efficient and effect that therefore this battery recycling is handled are not very high, and can't effectively eliminate battery because of charging for a long time and using the polarization that produces.
The utility model content
The problem that the utility model execution mode solves provides a kind of battery disposal device, to improve the battery remediation efficiency.
Another problem that the utility model execution mode solves provides a kind of battery disposal device, with the polarization of effective elimination battery, improves the repairing effect of battery.
For addressing the above problem, the utility model execution mode provides a kind of battery disposal device, comprising: current conversion unit, produce the variable direct current of current parameters, and described current parameters comprises levels of current; Current supply unit, controlling described current conversion unit, levels of current alternately is provided is not that 0 first electric current and second electric current are to battery.
Optionally, described battery disposal device also comprises: discharge cell, after described current supply unit Control current converting unit whenever provided first electric current of predetermined number and second electric current to battery, described discharge cell control battery discharged to load with the 3rd electric current.
Optionally, described battery disposal device also comprises: control unit, receive the reparation control command of repairing sign on, comprising the current parameters of first electric current, second electric current and the 3rd electric current, and start described current supply unit and discharge cell; And receive the reparation END instruction, close described current supply unit and discharge cell.
Optionally, described battery disposal device also comprises: detecting unit, and the state of detection battery, the state of described battery comprises: the monomer voltage of at least one battery cell and monomer temperature, the total voltage of battery current and/or battery.The state of described battery also comprises the density of electrolyte of at least one battery cell.
Optionally, described discharge cell is also controlled described battery and with discharging current load is discharged, and described control unit also receives the discharge sign on, comprises the discharge control command of the current parameters of discharging current, starts described discharge cell; And receive the discharge END instruction, close described discharge cell.
Optionally, described current supply unit is also controlled described current conversion unit provides charging current to battery, and described control unit also receives the charging sign on, comprises the charging control command of the current parameters of charging current, starts described current supply unit; And receive the charging END instruction, close described current supply unit.
Optionally, described battery disposal device also comprises: receive the state of detected battery and send the main control unit of instruction to described control unit.
Optionally, described main control unit: receive the battery recycling processing instruction, and send the discharge sign on, begin the first discharge process to described discharge cell; After the first discharge process finishes, when the monomer voltage of all battery cells is not less than the discharge monomer voltage threshold, send the charging sign on to described current supply unit, begin the charging process; After charging finishes, when the monomer voltage of all battery cells is no more than the first charging monomer voltage threshold value, send the discharge sign on to described discharge cell, begin the second discharge process; After the second discharge process finishes, when the monomer voltage of all battery cells is not less than the discharge monomer voltage threshold, send the reparation sign on to described current supply unit.
Compared with prior art, technique scheme has the following advantages:
Applying when battery is repaired does not have direct current intermittently to battery, promptly alternately provide first electric current that is not 0 forward and second electric current to battery, can make the voltage of battery continue to raise, fail to be convened for lack of a quorum intermittently to be interrupted with the existing direct current that puts on battery and compare by no current, shorten the time that the battery desulfurization is repaired and charged, thereby improved the efficient that battery is repaired.
After first electric current that predetermined number whenever is provided and second electric current are to battery, the control battery discharges to load with the 3rd electric current, promptly intermittently provide the 3rd electric current of negative sense to battery, can effectively eliminate the polarization phenomena of battery because of using for a long time and charging and produce, compare with the existing polarization that can't effectively eliminate battery, improved the effect that battery is repaired.
Before battery is repaired, detect the monomer of damage earlier by discharge and charging, the battery cell that can avoid damaging influences the desulfurization reparation, compares with the existing degradation that can't judge battery in advance, has guaranteed efficient and effect that battery is repaired.
State according to the battery that feeds back is adjusted current parameters in real time, first electric current, second electric current and the 3rd electric current when promptly adjusting the battery reparation according to different battery states of cure (vulcanization), can't give different direct currents according to different states of cure (vulcanization) and compare with existing, further guarantee efficient and effect that battery is repaired.
Detect monomer voltage, the monomer temperature of battery in real time, battery current, total voltage and density of electrolyte etc., the state variation that has reflected battery in the battery recycling processing procedure more intuitively realizes the real-time monitoring that battery recycling is handled, and has also improved the controllability that battery recycling is handled.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment battery disposal device;
Fig. 2 is the schematic diagram of the utility model embodiment battery disposal device first electric current, second electric current and the 3rd electric current that provide to battery;
Fig. 3 is the structural representation of the utility model embodiment processing system of battery.
Embodiment
The utility model execution mode applies not to be had direct current intermittently and gives battery, so that battery is carried out the desulfurization reparation, thereby can shorten battery desulfurization repair time, thereby improve the battery remediation efficiency.
The utility model execution mode provides a kind of battery disposal device, comprising: current conversion unit, produce the variable direct current of current parameters, and described current parameters comprises levels of current; Current supply unit, controlling described current conversion unit, levels of current alternately is provided is not that 0 first electric current and second electric current are to battery.
Described current parameters also comprises power-on time, and the levels of current of described first electric current is that 50～1000 amperes (A), power-on time are 0.02～12 second (s), and the levels of current of described second electric current is that 0.01～50A, power-on time are 0.02～12s.
Optionally, described battery disposal device also comprises discharge cell, after described current supply unit Control current converting unit whenever provided first electric current of predetermined number and second electric current to battery, described discharge cell control battery discharged to load with the 3rd electric current.
Described predetermined number is 2～5, and the levels of current of described the 3rd electric current is 50～1000A, and power-on time is 0.02～12s.
Be example with the employed lead acid accumulator of fork truck below, in conjunction with the accompanying drawings and embodiments the utility model execution mode be elaborated.Described lead acid accumulator comprises 24 series connected battery monomers, the nominal voltage of each battery cell is 2.0 volts (V), and the nominal voltage of described lead acid accumulator is 48V (2.0V*24), and nominal capacity is 500 ampere-hour (Ah, electric current with 100A discharges, and 5h has been put).
Please refer to Fig. 1, the battery disposal device of present embodiment comprises: current conversion unit 11, current supply unit 12, detecting unit 13, discharge cell 14, control unit 15 and main control unit 16.
Detecting unit 13, the state of detection battery 10.
Discharge cell 14,10 pairs of loads 20 of control battery are discharged.
Control unit 15, according to the instruction that receives, 12 pairs of batteries 10 of Control current feeding unit charge or repair, and 14 pairs of batteries 10 of control discharge cell discharge.
Main control unit 16 receives the state of detected battery and sends instruction to control unit 15.
Main control unit 16 is for having the electronic equipment of microprocessor, for example industrial computer, business computer etc., it can communicate with detecting unit 13, control unit 15 by USB (USB), RS-232 bus, RS-484 bus, controller local area network (CAN) bus etc.
Main control unit 16 can be realized the independent operation or the combination operation of discharge, charging and reparation to battery by control unit 15.The operation of 16 pairs of batteries of main control unit can be stored in the form of program in the main control unit 16, and start-up routine can be realized the automation of battery is handled in the time need handling battery.Describe the regeneration process of present embodiment battery disposal device to battery below in detail, described regeneration process comprises: the first discharge process, charging process, the second discharge process and reparation process.The first discharge process
When needs carried out Regeneration Treatment to battery 10, the staff sent the battery recycling processing instruction to main control unit 16, for example, opened the battery recycling handling procedure that stores in the main control unit 16.
Main control unit 16 receives the battery recycling processing instruction, promptly starts the battery recycling handling procedure, and sends the discharge sign on to control unit 15, begins the first discharge process, and the first discharge process is used to detect the battery cell of damage.And main control unit 16 also sends the discharge control command of the current parameters that comprises discharging current to control unit 15, and the current parameters of described discharging current comprises levels of current and/or duration.
In the first discharge process, the levels of current of discharging current is generally 10～100% of battery nominal capacity, is the battery of 500Ah with the nominal capacity, and the levels of current of discharging current is 50～500A; Preferably, the levels of current of discharging current can be 20% of battery nominal capacity, i.e. 100A.
In addition, in the first discharge process, battery was discharged with big electric current in blink, internal resistance with the assessment battery, usually, big electric current is meant that the levels of current of discharging current is 50～100% or 70～100% or 90～100% of battery nominal capacity, i.e. 250～500A or 350～500A or 450～500A; Preferably, the levels of current of discharging current can be 80～100% of battery nominal capacity, i.e. 400～500A.The duration that is meant discharging current blink is 1～40s or 1～10s or 1～5s, and preferably, the duration of discharging current is 2～5s.
Control unit 15 receives the discharge sign on and comprises the discharge control command of the current parameters of discharging current, and start discharge cell 14 according to the current parameters of discharging current, discharge cell 14 discharges 10 pairs of loads 20 of battery according to the current parameters control battery 10 of the discharging current that receives and the discharging current between the load 20.Discharge cell 14 can be a circuit based on insulated gate bipolar transistor (I.G.B.T).Load 20 can be ohmic load or electronic load.In addition, discharge cell 14 also reaches final voltage in the total voltage of battery and (is generally 85% of nominal voltage, be 48*85%=40.8V in the present embodiment) time, stop 10 pairs of loads 20 of battery and discharge, to avoid stopping the problem of discharge because of the uncontrollable discharge cell 14 of control unit 15 faults.
In the process that 10 pairs of loads 20 of battery are discharged, detecting unit 13 detects the state of battery 10 in real time, as voltage, temperature and the electric current of battery, and feeds back to main control unit 16.Monomer voltage (, a plurality of or whole), monomer temperature that detecting unit 13 can detect battery (are the electrolyte temperature of monomer, one, a plurality of or whole), the electric current of battery, the total voltage of battery etc., voltage sensor, temperature sensor and current sensor can be arranged in the battery cell that needs to detect.The state of the battery that detecting unit 13 obtains comprises: the monomer voltage of at least one battery cell and monomer temperature, the total voltage of battery current and/or battery.In addition, the state of battery can also comprise density of electrolyte, and the density of electrolyte transducer is arranged in the battery cell that needs to detect.
Detecting unit 13 can comprise the storage element (for example flash memory) of the state of storage batteries and show the display unit (for example LCD) of the state of battery.In other embodiments, the state of detected battery also can be collected by control unit 15, and gives main control unit 16 by control unit 15 with the state feedback of battery.The testing result of all the sensors can be sent to detecting unit 13 or control unit 15 by wired or wireless (for example radio frequency, bluetooth etc.) mode.
Main control unit 16 sends the discharge END instruction according to the state of the battery of detecting unit 13 feedbacks to control unit 15.Specifically, when the monomer voltage that main control unit 16 reaches discharge total voltage threshold value or all battery cells in the total voltage of battery reaches the discharge monomer voltage threshold, send the discharge END instructions to control unit 15.
In the present embodiment, described discharge monomer voltage threshold is 85% (being 2.0*85%=1.7V) of battery cell nominal voltage, detecting unit 13 detects the monomer voltage of all battery cells and feeds back to main control unit 16, when main control unit 16 reaches 1.7V at the monomer voltage of all battery cells, send the discharge END instruction to control unit 15.
In the present embodiment, described discharge total voltage threshold value is 85% (being 40.8V) of battery nominal voltage, detecting unit 13 detects the total voltage of battery and feeds back to main control unit 16, when main control unit 16 reaches 40.8V in the total voltage of battery, sends the discharge END instruction to control unit 15.
In addition, in the present embodiment, main control unit 16 also sends the discharge pause instruction to control unit 15 according to the state of the battery of detecting unit 13 feedbacks.Specifically, when main control unit 16 is lower than the discharge monomer voltage threshold at the monomer voltage of at least one battery cell, send the discharge pause instruction to control unit 15.If the monomer voltage of battery cell is lower than 1.7V, promptly the pressure drop height or the pressure drop rate of battery cell are too fast, illustrate that then described battery cell sulfuration is serious, and internal resistance height and poorly conductive damage.Main control unit 16 is according to the monomer voltage of the battery cell of detecting unit 13 feedbacks, have therein the monomer voltage of battery cell be lower than 1.7V (＜1.7V) time, send the discharge pause instruction to suspend the first discharge process to control unit 15, and in time point out the staff to change the battery cell of described damage, the staff can control and suspend discharge and change battery cell, can recover to start (continuation) first discharge process after changing battery cell, after promptly changing battery cell, main control unit 16 sends discharge to control unit 15 and recovers instruction.
Control unit 15 receives discharge pause instruction or discharge END instruction, closes discharge cell 14; Perhaps receive discharge and recover instruction, recover to start discharge cell 14.The total voltage that main control unit 16 reaches 1.7V or battery at the monomer voltage of all battery cells finishes the first discharge process when reaching 40.8V.
The charging process
After the first discharge process finishes, main control unit 16 is not less than the discharge monomer voltage threshold (in the present embodiment during for monomer voltage 〉=1.7V) at the monomer voltage of all battery cells, send the charging sign on to current supply unit 12, begin the charging process, the charging process is used to detect the battery cell of damage.And main control unit 16 also sends the charging control command of the current parameters that comprises charging current to control unit 15, and the current parameters of described charging current comprises levels of current.
Charging modes can be constant current charging mode or stage charge mode (as the I.U.I.A pattern), and for constant current charging mode, the levels of current of charging current can be 10～20% (promptly 50～100A) of battery nominal capacity; For stage charge mode, the levels of current of charging current begins to be 20% (being 100A) of battery nominal capacity, reduces the levels of current of charging current then with the rising of cell voltage gradually.Because these two kinds of charge modes are well known to those skilled in the art, promptly do not launch to describe in detail at this.
Control unit 15 receives the charging sign on and comprises the charging control command of the current parameters of charging current, current parameters starting current feeding unit 12 according to charging current, current supply unit 12 is according to the levels of current of charging current, and Control current converting unit 11 provides charging current to battery 10.The input current of current conversion unit 11 is an alternating current, can be by 50～60 hertz (Hz), 380～415V three-phase alternating-current supply or 110V single phase alternating current power supply or 220～240V is single-phase or three-phase alternating-current supply obtains after the transformer step-down.
The output current of current conversion unit 11 is a direct current, and the levels of current of the direct current of described output and power-on time (being frequency) can change according to the current parameters that current supply unit 12 provides.Current conversion unit 11 comprises: rectification circuit is converted to direct current with alternating current, and adjusts the levels of current of direct current; Frequency changer circuit, the power-on time of adjustment direct current.
In the process that 11 pairs of batteries 10 of current conversion unit charge, detecting unit 13 detects voltage, temperature and the electric current of battery 10 in real time, obtains the state of battery and feeds back to main control unit 16.Detecting unit 13 can detect total voltage, density of electrolyte of electric current, the battery of monomer voltage (, a plurality of or whole), monomer temperature (, a plurality of or whole), the battery of battery etc.
Main control unit 16 sends the charging END instruction according to the state of the battery of detecting unit 13 feedbacks to control unit 15.Specifically, when main control unit 16 reaches the first charging monomer voltage threshold value at the monomer voltage of all batteries, send the charging END instruction to described control unit.
Usually, the described first charging monomer voltage threshold value is 2.45V～2.7V, and in the present embodiment, the first charging monomer voltage threshold value is 2.55V.When main control unit 16 reaches 2.55V at the monomer voltage of all batteries, send the charging END instruction to control unit 15.
In addition, in the present embodiment, main control unit 16 also sends the charging pause instruction to control unit 15 according to the state of the battery of detecting unit 13 feedbacks.Specifically, when main control unit 16 surpasses the second charging monomer voltage threshold value at the monomer voltage of at least one battery cell, send the charging pause instruction to control unit 15.Wherein, the described second charging monomer voltage threshold value is 2.7V, if the monomer voltage of battery cell surpasses 2.7V, promptly the rate of pressure rise of battery cell is too fast, illustrates that then described battery cell sulfuration is serious, damages.Main control unit 16 is according to the monomer voltage of the battery cell of detecting unit 13 feedbacks, have therein the monomer voltage of battery cell surpass 2.7V (＞2.7V) time, send EOT end of timeout instruction to suspend the charging process to control unit 15, and in time point out the staff to change the battery cell of described damage, the staff can control and suspend charging and change battery cell, can recover to start (continuation) charging process after changing battery cell, after promptly changing battery cell, main control unit 16 sends charging to control unit 15 and recovers instruction.
Control unit 15 receives charging pause instruction or charging END instruction, close current feeding unit 12; Perhaps receive charging and recover instruction, recover starting current feeding unit 12.Complete charge process when main control unit 16 reaches 2.55V at the monomer voltage of all battery cells.
The second discharge process
After the charging process finishes, main control unit 16 is no more than the first charging monomer voltage threshold value (in the present embodiment during for monomer voltage≤2.7V) at the monomer voltage of all battery cells, send the discharge sign on to described discharge cell 14, begin the second discharge process, the second discharge process is used to detect the capacitance of the preprosthetic battery cell of battery.And main control unit 16 also sends the discharge control command of the current parameters that comprises discharging current to control unit 15, and the current parameters of described discharging current comprises levels of current, and the second discharge process is a constant-current discharge.
In the second discharge process, the levels of current of discharging current is generally 5～40% (promptly 25～200A) or 10～30% (promptly 50～150A) of battery nominal capacity; Preferably, the levels of current of discharging current can be 20% of battery nominal capacity, i.e. 100A.
Control unit 15 receives the discharge sign on and comprises the discharge control command of the current parameters of discharging current, current parameters according to discharging current starts discharge cell 14, discharge cell 14 discharges 10 pairs of loads 20 of battery according to the current parameters control battery 10 of the discharging current that receives and the discharging current between the load 20.
In the process that 10 pairs of loads 20 of battery are discharged, detecting unit 13 detects voltage, temperature and the electric current of battery 10 in real time, obtains the state of battery and feeds back to main control unit 16.Detecting unit 13 can detect total voltage, density of electrolyte of electric current, the battery of monomer voltage (, a plurality of or whole), monomer temperature (, a plurality of or whole), the battery of battery etc.
Main control unit 16 sends the discharge END instruction according to the state of the battery of detecting unit 13 feedbacks to control unit 15.Specifically, when the monomer voltage that main control unit 16 reaches discharge total voltage threshold value or all battery cells in the total voltage of battery reaches the discharge monomer voltage threshold, send the discharge END instructions to control unit 15.
In the present embodiment, described discharge monomer voltage threshold is 85% (being 2.0*85%=1.7V) of battery cell nominal voltage, detecting unit 13 detects the monomer voltage of all battery cells and feeds back to main control unit 16, when main control unit 16 reaches 1.7V at the monomer voltage of all battery cells, send the discharge END instruction to control unit 15.
In the present embodiment, described discharge total voltage threshold value is 85% (being 40.8V) of battery nominal voltage, detecting unit 13 detects the total voltage of battery and feeds back to main control unit 16, when main control unit 16 reaches 40.8V in the total voltage of battery, sends the discharge END instruction to control unit 15.
Control unit 15 receives the discharge END instruction, closes discharge cell 14.The total voltage that main control unit 16 reaches 1.7V or battery at the monomer voltage of all battery cells finishes the second discharge process when reaching 40.8V.
The first discharge process and charging process are used to detect the battery cell of damage, and the battery cell of pointing out the staff to change damage, in order to avoid the follow-up reparation process to battery of the battery cell that damages influence.The second discharge process is used to detect the capacitance of the preprosthetic battery cell of battery.In the present embodiment, main control unit 16 can be changed the battery cell that damages by real-time prompting in the first discharge process and charging process, and continues corresponding process after changing battery cell.In other embodiments, also can be to write down the battery cell that damages earlier and do not suspend current process in the first discharge process and charging process, after charging process or the end of the second discharge process, reresent the battery cell of changing all damages.The battery cell of described damage is meant: in the first discharge process, the monomer voltage of battery cell be lower than the discharge monomer voltage threshold (＜1.7V); And in the charging process, the monomer voltage of battery cell surpass the first charging monomer voltage threshold value (＞2.7V).Behind the battery cell of changing all damages, can carry out the discharge process of short time, to detect the battery cell of changing.
The reparation process
After the second discharge process finishes, main control unit 16 is not less than the discharge monomer voltage threshold (in the present embodiment during for monomer voltage 〉=1.7V) at the monomer voltage of all battery cells, in other words, when not having the battery cell that damages, send the reparation sign on to control unit 15, begin the reparation process, the reparation process is used for battery is carried out the desulfurization reparation.And, main control unit 16 also sends the reparation control command of the current parameters that comprises first electric current and second electric current to control unit 15, in addition, the reparation control command of present embodiment also comprises the current parameters of the 3rd electric current, the current parameters of described first electric current, second electric current and the 3rd electric current comprises levels of current and power-on time, wherein first electric current and second electric current are forward current, are used for the battery reparation of charging; The 3rd electric current is a negative current, is used for battery is discharged.
In the present embodiment, be one the 3rd electric current behind first electric current of predetermined number and second electric current, described predetermined number is 2～5.For example, as shown in Figure 2, alternately provide first electric current and second electric current each after 3, one the 3rd electric current is provided, and then each 3 in first electric current and second electric current alternately is provided, 1 the 3rd electric current (not shown) is provided again ....Wherein, the levels of current of first electric current is I1, and power-on time is t1, and the levels of current of second electric current is I2, and power-on time is t2, and the levels of current of the 3rd electric current is I3, and power-on time is t3.
The levels of current of described first electric current is that 50～1000A, power-on time are 0.02～12s, the levels of current of described second electric current is that 0.01～50A, power-on time are 0.02～12s, and the levels of current of described the 3rd electric current is that 50～1000A, power-on time are 0.02～12s.Usually, the levels of current of the 3rd electric current is identical with the levels of current of first electric current, and the power-on time of the 3rd electric current is identical with the power-on time of first electric current.
Control unit 15 receives the reparation control command of repairing sign on and comprising the current parameters of first electric current, second electric current and the 3rd electric current, starting current feeding unit 12 and discharge cell 14, current supply unit 12 is according to the levels of current of first electric current and the levels of current and the power-on time of the power-on time and second electric current, and Control current converting unit 11 alternately provides first electric current of predetermined number and second electric current to battery 10; Discharge cell 14 is after current supply unit 12 Control current converting units 11 whenever provide first electric current of predetermined number and second electric current to battery 10, and control battery 10 discharges to load 20 with the 3rd electric current.
The input current of current conversion unit 11 is an alternating current, can be by 50～60 hertz (Hz), 380～415V three-phase alternating-current supply or 110V single phase alternating current power supply or 220～240V is single-phase or three-phase alternating-current supply obtains after the transformer step-down.The rectification circuit of current conversion unit 11 is converted to direct current with alternating current, and the levels of current of the direct current of the levels of current adjustment of first electric current that provides according to current supply unit 12 or second electric current output; The power-on time (frequency in other words) of the direct current of first electric current that the frequency changer circuit of current conversion unit 11 provides according to current supply unit 12 or the power-on time adjustment of second electric current output.
First electric current that current conversion unit 11 alternately offers battery 10 can make the carried charge of lead molecule in the lead sulfate crystal salt improve with second electric current and separate, allow irreversible lead sulfate crystal salt become reversible ionic condition, can make the plumbous Plante-type plate of returning via charging, this moment, density of electrolyte can obviously improve.14 pairs of batteries of discharge cell carry out the of short duration discharge of the 3rd electric current can effectively eliminate the polarization phenomena of battery because of using for a long time and charging and produce.
Alternately provide first electric current and second electric current and discharge cell 14 battery to be discharged at 11 pairs of batteries 10 of current conversion unit with the 3rd electric current, carry out in the process of desulfurization reparation, detecting unit 13 detects voltage, temperature and the electric current of battery 10 in real time, obtains the state of battery and feeds back to main control unit 16.Detecting unit 13 can detect total voltage, density of electrolyte of electric current, the battery of monomer voltage (, a plurality of or whole), monomer temperature (, a plurality of or whole), the battery of battery etc.
In the desulfurization repair process, the levels of current that monomer voltage that main control unit 16 can detect according to detecting unit 13 or monomer temperature are adjusted first electric current, second electric current and the 3rd electric current.That is to say that the levels of current I3 of the levels of current I1 of first electric current shown in Figure 2, the levels of current I2 of second electric current and the 3rd electric current can change according to the monomer voltage or the monomer temperature of real-time detection.For example, main control unit 16 reduces the levels of current of first electric current, second electric current and the 3rd electric current when the monomer voltage of at least one battery cell reaches the first monomer voltage threshold value or monomer temperature and surpasses the first monomer temperature threshold value.Wherein, the described first monomer voltage threshold value is 2.45～2.69V, and the first monomer temperature threshold value is 45～60 ℃, and preferably, the described first monomer voltage threshold value is 2.5～2.55V, and the first monomer temperature threshold value is 45～50 ℃.
In the present embodiment, the battery cell that voltage sensor can be arranged on poor-performing (for example, slower battery cell charges, it can detect in the charging process and obtain) in, the change in voltage of the battery cell of poor-performing can reflect other battery cells or cell integrated change in voltage, when main control unit 16 reaches 2.45V at the monomer voltage of the battery cell of described poor-performing, reduce first electric current, second electric current and levels of current the 3rd electric current.Temperature sensor can be arranged in the electrolyte of the battery cell in the middle of the battery, when main control unit 16 surpasses 45 ℃ in detected monomer temperature, reduces the levels of current of first electric current, second electric current and the 3rd electric current.
In the desulfurization repair process, the power-on time that main control unit 16 also can be adjusted first electric current, second electric current and the 3rd electric current according to the monomer voltage or the density of electrolyte of detecting unit 13 feedback.That is to say that the power-on time t3 of the power-on time t1 of first electric current shown in Figure 2, the power-on time t2 of second electric current and the 3rd electric current can change according to the monomer voltage or the density of electrolyte of real-time detection.Monomer voltage that feeds back in the reparation process or density of electrolyte can reflect the granular size of lead sulfate crystal salt to a certain extent, for example, main control unit 16 beginnings can be set first electric current, second electric current and the 3rd electric current of longer power-on time (low frequency), to separate the lead sulfate crystal salt of larger particles, if monomer voltage or density of electrolyte continue to rise, then do not change power-on time; If monomer voltage or density of electrolyte do not change (not rising) in a period of time (scheduled time), then shorten the power-on time (quickening frequency) of first electric current, second electric current and the 3rd electric current, to separate lead sulfate crystal salt than granule.
In addition, control unit 15 can also comprise the frequency conversion switch, provide first electric current to battery off and at the power-on time t1 of first electric current inner control current supply unit 12 and current conversion unit 11, provide second electric current to battery off and at the power-on time t2 of second electric current inner control current supply unit 12 and current conversion unit 11, can further improve the separating effect of lead sulfate crystal salt like this.The frequency of described frequency conversion switch can be set according to the monomer voltage or the density of electrolyte of detecting unit 13 feedbacks by main control unit 16, and sends to control unit 15 by repairing control command.For example, main control unit 16 beginnings can be set the frequency of lower frequency conversion switch, to separate the lead sulfate crystal salt of larger particles, if monomer voltage or density of electrolyte continue to rise, then do not change power-on time; If monomer voltage or density of electrolyte do not change (not rising) in a period of time (scheduled time), then accelerate the frequency of frequency conversion switch, to separate the lead sulfate crystal salt than granule, the frequency range of frequency conversion switch can be 50Hz～1.2MHz.
Main control unit 16 sends the reparation END instruction according to the state of the battery of detecting unit 13 feedbacks to control unit 15.Specifically, when main control unit 16 reaches the second monomer voltage threshold value at the monomer voltage of at least one battery cell, send the reparation END instruction to control unit 15.Wherein, the described second monomer voltage threshold value is 2.45～2.7V.In the present embodiment, when main control unit 16 reaches 2.55V at the monomer voltage of the battery cell of poor-performing, send the reparation END instruction to control unit 15.
In addition, main control unit 16 meets or exceeds repair time during threshold value in repair time, sends to control unit 15 and repairs END instructions, and described repair time, threshold value was 10h.
In the present embodiment, main control unit 16 is also according to the state of the battery of detecting unit 13 feedback, sends to control unit 15 and repairs pause instructions.Specifically, when the total voltage that the monomer temperature that main control unit 16 detects at least one battery cell at detecting unit 13 surpasses the second monomer temperature threshold value or battery surpasses the total voltage threshold value, send the reparation pause instruction to control unit 15, to suspend the reparation process.Main control unit 16 sends to repair to control unit 15 and recovers instruction, to recover to start the reparation process after monomer temperature drops to the second monomer temperature threshold value or monomer voltage and drops to the 3rd monomer voltage threshold value.The described second monomer temperature threshold value is 50～60 ℃, and preferably, the described second monomer temperature threshold value is 55 ℃.Described total voltage threshold value is 61.2V (2.55V*24), and described the 3rd monomer voltage threshold value is 2.45V.
The direct current that puts on storage battery compared to existing technology fails to be convened for lack of a quorum and is intermittently interrupted by no current, present embodiment puts on battery when desulfurization is repaired first electric current and second electric current do not have intermittently (not being 0), can be so that the voltage of battery continues to raise, reach the second monomer voltage threshold value quickly, thereby shortened the time that the battery desulfurization is repaired and charged, thereby improved the battery remediation efficiency; And intermittently battery is discharged and solved the problem of battery polarization with the 3rd electric current.
Control unit 15 receives to be repaired pause instruction or repairs END instruction, and close current feeding unit 12 and discharge cell 14 finish the reparation process; Perhaps receive to repair and recover instruction, recover starting current feeding unit 12 and discharge cell 14.
After the reparation process finishes, can also carry out the 3rd discharge process, improve situation in other words with the repairing effect that detects battery.The 3rd discharge process can be a constant-current discharge, also can be simulation discharge (being can change discharging current levels of current and duration), with the actual operating position of simulated battery.
Through the battery after the desulfurization reparation, the density of electrolyte of battery cell can obviously improve, and for example, after the battery sulfuration, density of electrolyte is lower than 1.2 kg/liter (Kg/L) in the time of 20 ℃; After the battery desulfurization was full of electricity, density of electrolyte was 1.27～1.29Kg/L in the time of 20 ℃.
In addition, as shown in Figure 1, the battery disposal device of present embodiment also comprises charge protection unit 17 and discharge prevention unit 18.
Charge protection unit 17 carries out overvoltage, overcurrent and overheat protector in charging or reparation process, for example, and when the total voltage of battery is higher than 64.8V, the direct current that provides continues to surpass 500A in 5 seconds or monomer temperature surpasses 60 ℃, stops charging or reparation process.The problem of charging or reparation can be avoided stopping because of the uncontrollable current supply unit 12 of control unit 15 faults in charge protection unit 17.
Discharge prevention unit 18 carries out overvoltage, overcurrent and excess temperature in the discharge process, for example, and when the total voltage of battery is lower than 40.8V, continuous 5 minutes (min) discharging currents surpass 200A or the ohmic load surface temperature surpasses 250 ℃, stop the discharge process.The problem of discharge can be avoided stopping because of the uncontrollable discharge cell 14 of control unit 15 faults in discharge prevention unit 18.
In above-mentioned entire cell regeneration process, the monomer voltage of detected battery cell, monomer temperature, battery current, total voltage and density of electrolyte, detecting unit 13 or main control unit 16 can change with form display voltage variation in real time, variations in temperature, the electric current of chart and density of electrolyte changes.In addition, in the present embodiment, the monomer voltage of battery cell and the total voltage of battery are detected under open-circuit condition.
The utility model embodiment also provides a kind of processing system of battery, please in conjunction with reference to figure 1 and Fig. 3, processing system of battery shown in Figure 3 comprises a plurality of battery disposal devices as shown in Figure 11, a plurality of battery disposal devices 1 connect by Local Area Network, wide area network network systems such as (WAN) 3, main control unit 16 as battery disposal device 1 is connected to server 4 by network system 3, and server 4 can be handled operation by 1 pair of battery of remote monitoring and each battery disposal device of management; Collect and store the state of the detected battery of each battery disposal device 1; Program to the main control unit 16 of each battery disposal device 1 is upgraded etc.The main control unit 16 of each battery disposal device 1 also can carry out information and instruction transmission etc. by network system 3 and server 4.
In other embodiments, a plurality of battery disposal devices 1 also can pass through Local Area Network, wide area network network systems 3 such as (WAN) directly connects, and promptly the main control unit 16 of each battery disposal device 1 directly carries out information and instruction transmission etc. by network system 3.Perhaps, the main control unit 16 of each battery disposal device 1 also can be same electronic equipment, for example, and personal computer, server etc.
In sum, technique scheme has the following advantages:
Applying when battery is repaired does not have direct current intermittently to battery, promptly alternately provide first electric current that is not 0 forward and second electric current to battery, can make the voltage of battery continue to raise, reach predetermined voltage threshold (the second monomer voltage threshold value) quickly, thereby shortened the time that the battery desulfurization is repaired and charged, thereby improved the efficient that battery is repaired.
After first electric current that predetermined number whenever is provided and second electric current are to battery, the control battery discharges to load with the 3rd electric current, promptly intermittently provide the 3rd electric current of negative sense to battery, can effectively eliminate the polarization phenomena of battery, thereby improve the effect that battery is repaired because of using for a long time and charging and produce.
Before battery is repaired, detect the monomer of damage earlier by discharge and charging, the battery cell that can avoid damaging influences the desulfurization reparation, thereby has guaranteed efficient and effect that battery is repaired.
State according to the battery that feeds back is adjusted current parameters in real time, and the electric current when promptly adjusting the battery reparation according to different battery states of cure (vulcanization) has further been guaranteed efficient and effect that battery is repaired.
Detect monomer voltage, the monomer temperature of battery in real time, battery current, total voltage and density of electrolyte etc., the state variation that has reflected battery in the battery recycling processing procedure more intuitively realizes the real-time monitoring that battery recycling is handled, and has also improved the controllability that battery recycling is handled.
Though the utility model with preferred embodiment openly as above; but it is not to be used for limiting the utility model; any those skilled in the art are not in breaking away from spirit and scope of the present utility model; can make possible change and modification, therefore protection range of the present utility model should be as the criterion with the scope that the utility model claim is defined.
Claims (36)
1. a battery disposal device is characterized in that, comprising:
Current conversion unit produces the variable direct current of current parameters, and described current parameters comprises levels of current;
Current supply unit, controlling described current conversion unit, levels of current alternately is provided is not that 0 first electric current and second electric current are to battery.
2. battery disposal device according to claim 1, it is characterized in that, described current parameters also comprises power-on time, the levels of current of described first electric current is that 50～1000A, power-on time are 0.02～12s, and the levels of current of described second electric current is that 0.01～50A, power-on time are 0.02～12s.
3. battery disposal device according to claim 2, it is characterized in that, also comprise discharge cell, after described current supply unit Control current converting unit whenever provided first electric current of predetermined number and second electric current to battery, described discharge cell control battery discharged to load with the 3rd electric current.
4. battery disposal device according to claim 3 is characterized in that, described predetermined number is 2～5.
5. battery disposal device according to claim 3 is characterized in that, the levels of current of described the 3rd electric current is 50～1000A, and power-on time is 0.02～12s.
6. battery disposal device according to claim 3 is characterized in that, also comprises: control unit, receive the reparation control command of repairing sign on, comprising the current parameters of first electric current and second electric current, and start described current supply unit; And receive the reparation END instruction, close described current supply unit.
7. battery disposal device according to claim 6 is characterized in that described reparation control command also comprises the current parameters of the 3rd electric current, and described control unit also starts described discharge cell.
8. battery disposal device according to claim 7, it is characterized in that, also comprise: detecting unit, the state of detection battery, the state of described battery comprises: the monomer voltage of at least one battery cell and monomer temperature, the total voltage of battery current and/or battery.
9. battery disposal device according to claim 8 is characterized in that the state of described battery also comprises the density of electrolyte of at least one battery cell.
10. battery disposal device according to claim 8 is characterized in that the state of described battery is obtained by detecting unit or control unit.
11. battery disposal device according to claim 8, it is characterized in that, described discharge cell is also controlled described battery and with discharging current load is discharged, described control unit also receives the discharge sign on, comprises the discharge control command of the current parameters of discharging current, starts described discharge cell; And receive the discharge END instruction, close described discharge cell.
12. battery disposal device according to claim 11, it is characterized in that, described current supply unit is also controlled described current conversion unit provides charging current to battery, described control unit also receives the charging sign on, comprises the charging control command of the current parameters of charging current, starts described current supply unit; And receive the charging END instruction, close described current supply unit.
13. battery disposal device according to claim 12 is characterized in that, also comprises: receive the state of detected battery and the main control unit that instructs to described control unit transmission.
14. battery disposal device according to claim 13 is characterized in that, described main control unit:
Receive the battery recycling processing instruction, and send the discharge sign on, begin the first discharge process to described discharge cell;
After the first discharge process finishes, when the monomer voltage of all battery cells is not less than the discharge monomer voltage threshold, send the charging sign on to described current supply unit, begin the charging process;
After the charging process finishes, when the monomer voltage of all battery cells is no more than the first charging monomer voltage threshold value, send the discharge sign on to described discharge cell, begin the second discharge process;
After the second discharge process finishes, when the monomer voltage of all battery cells is not less than the discharge monomer voltage threshold, send the reparation sign on to described current supply unit.
15. battery disposal device according to claim 14 is characterized in that, the current parameters of described discharging current comprises levels of current, and the levels of current of the discharging current of the described first discharge process is 10～100% of a battery nominal capacity.
16. battery disposal device according to claim 18, it is characterized in that, the current parameters of described discharging current also comprises the duration, and the levels of current of the discharging current of the described first discharge process is 50～100% of a battery nominal capacity, and the duration is 1～40s.
17. battery disposal device according to claim 14 is characterized in that, the current parameters of described discharging current comprises levels of current, and the levels of current of the discharging current of the described second discharge process is 5～40% of a battery nominal capacity.
18. according to claim 13 or 14 described battery disposal devices, it is characterized in that, when the monomer voltage that the total voltage of described main control unit battery reaches discharge total voltage threshold value or all battery cells reaches the discharge monomer voltage threshold, send the discharge END instruction to described control unit.
19. battery disposal device according to claim 18 is characterized in that, when described main control unit is lower than the discharge monomer voltage threshold at the monomer voltage of at least one battery cell, also sends the discharge pause instruction to described control unit.
20. battery disposal device according to claim 19 is characterized in that, described discharge monomer voltage threshold is 85% of a battery cell nominal voltage, and described discharge total voltage threshold value is 85% of a battery nominal voltage.
21. according to claim 13 or 14 described battery disposal devices, it is characterized in that, when described main control unit reaches the first charging monomer voltage threshold value at the monomer voltage of all batteries, send the charging END instruction to described control unit.
22. battery disposal device according to claim 21 is characterized in that, when described main control unit surpasses the second charging monomer voltage threshold value at the monomer voltage of at least one battery cell, also sends the charging pause instruction to described control unit.
23. battery disposal device according to claim 22 is characterized in that, the described first charging monomer voltage threshold value is 2.45～2.7V, and the described second charging monomer voltage threshold value is 2.7V.
24., it is characterized in that the levels of current that described main control unit is adjusted described first electric current, second electric current and the 3rd electric current according to the monomer voltage or the monomer temperature of described detecting unit detection according to claim 13 or 14 described battery disposal devices.
25. battery disposal device according to claim 24, it is characterized in that, described main control unit reduces the levels of current of described first electric current and second electric current and the 3rd electric current when the monomer voltage of at least one battery cell reaches the first monomer voltage threshold value or monomer temperature and surpasses the first monomer temperature threshold value.
26. battery disposal device according to claim 25 is characterized in that, the described first monomer voltage threshold value is 2.45～2.69V, and the described first monomer temperature threshold value is 45～60 ℃.
27., it is characterized in that the power-on time that described main control unit is adjusted described first electric current, second electric current and the 3rd electric current according to the monomer voltage or the density of electrolyte of described detecting unit detection according to claim 13 or 14 described battery disposal devices.
28. battery disposal device according to claim 27 is characterized in that, described main control unit shortens the power-on time of first electric current, second electric current and the 3rd electric current when monomer voltage or density of electrolyte do not change in the given time.
29. battery disposal device according to claim 27, it is characterized in that, described control unit also comprises the frequency conversion switch, described current supply unit of power-on time inner control and current conversion unit at first electric current provide first electric current to battery off and on, provide second electric current to battery off and in the described current supply unit of power-on time inner control and the current conversion unit of second electric current.
30. battery disposal device according to claim 29, it is characterized in that, described reparation control command also comprises the frequency of frequency conversion switch, and described main control unit is accelerated the frequency of described frequency conversion switch when monomer voltage or density of electrolyte do not change in the given time.
31. according to claim 13 or 14 described battery disposal devices, it is characterized in that, described main control unit reaches the second monomer voltage threshold value or meets or exceeds repair time repair time during threshold value at the monomer voltage of at least one battery cell, sends to described control unit and repairs END instruction.
32. battery disposal device according to claim 31 is characterized in that, the described second monomer voltage threshold value is 2.45～2.7V, and described repair time, threshold value was 10h.
33. battery disposal device according to claim 31, it is characterized in that, when the total voltage that described main control unit surpasses the second monomer temperature threshold value or battery in the monomer temperature of at least one battery cell surpasses the total voltage threshold value, also send and repair pause instruction to described control unit.
34. battery disposal device according to claim 33, it is characterized in that, described main control unit also sends to repair to described control unit and recovers instruction when monomer temperature drops to the second monomer temperature threshold value or monomer voltage and drops to the 3rd monomer voltage threshold value.
35. battery disposal device according to claim 34 is characterized in that, the described second monomer temperature threshold value is 50～60 ℃, and described total voltage threshold value is 61.2V, and described the 3rd monomer voltage threshold value is 2.45V.
36. processing system of battery that comprises each described battery disposal device at least one claim 1 to 14.
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| CN2009201745995U CN201663206U (en) | 2009-10-12 | 2009-12-01 | Battery disposal device |
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| CN200920210796.8 | 2009-10-12 | ||
| CN200920210796 | 2009-10-12 | ||
| CN2009201745995U CN201663206U (en) | 2009-10-12 | 2009-12-01 | Battery disposal device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311591A (en) * | 2013-06-28 | 2013-09-18 | 江苏玖宇实业有限公司 | Repair method of lead-acid storage batteries |
| WO2023004712A1 (en) * | 2021-07-29 | 2023-02-02 | 宁德时代新能源科技股份有限公司 | Charging and discharging apparatus, battery charging method, and charging and discharging system |
-
2009
- 2009-12-01 CN CN2009201745995U patent/CN201663206U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311591A (en) * | 2013-06-28 | 2013-09-18 | 江苏玖宇实业有限公司 | Repair method of lead-acid storage batteries |
| WO2023004712A1 (en) * | 2021-07-29 | 2023-02-02 | 宁德时代新能源科技股份有限公司 | Charging and discharging apparatus, battery charging method, and charging and discharging system |
| KR20230019376A (en) * | 2021-07-29 | 2023-02-08 | 컨템포러리 엠퍼렉스 테크놀로지 씨오., 리미티드 | Charging and discharging device, battery charging method and charging and discharging system |
| JP7431866B2 (en) | 2021-07-29 | 2024-02-15 | 寧徳時代新能源科技股▲分▼有限公司 | Charging/discharging device, battery charging method, and charging/discharging system |
| KR102644604B1 (en) * | 2021-07-29 | 2024-03-11 | 컨템포러리 엠퍼렉스 테크놀로지 씨오., 리미티드 | Charge/discharge device, battery charging method, and charge/discharge system |
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