CN202712939U - Multifunctional charger - Google Patents
Multifunctional charger Download PDFInfo
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- CN202712939U CN202712939U CN2012202773759U CN201220277375U CN202712939U CN 202712939 U CN202712939 U CN 202712939U CN 2012202773759 U CN2012202773759 U CN 2012202773759U CN 201220277375 U CN201220277375 U CN 201220277375U CN 202712939 U CN202712939 U CN 202712939U
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Abstract
The utility model discloses a multifunctional charger, including a charging circuit, a compensation circuit, a rectifier loop, an intelligent control system, a compensation contactor 1KM, a charging contactor 2KM, an AC contactor 8KM and a reversal connection relay 9KA, wherein the compensation contactor 1KM and the charging contactor 2KM realize electric interlocking by means of the self auxiliary contacts in control; when the 2KM works, the charging circuit is formed; when the 1KM works, the compensation circuit is formed; a PLC module of the intelligent control system is plugged with a PLC host; and on/off of the compensation contactor 1KM and the charging contactor 2KM are controlled by the PLC host, thus realizing conversion of the charging state and the reactive power compensation state for the charger. The multifunctional charger uses the AC/DC current voltage sensors and the PLC host to realize programmable automatic control, and realizes the conversion of the analog quantity and the digital quantity through the PLC module, and utilizes the touch display screen to display various working states and working parameters, and realizes the man-machine dialogue and high degree of automation.
Description
Technical field
The utility model relates to a kind of Multifunctional charger, belongs to power electronic technology and power network reactive power compensation technical field,
Background technology
Charger is the common apparatus that all trades and professions such as Aero-Space, national defence communication, automobile boats and ships, industrial and mineral electromechanics, railway locomotive, port and pier, various motor vehicle, maintenance of equipment, mine, storage carrying, cleaning equipment, electric power be unable to do without, and range of application is very extensive.The charger of commonly using in the market, its principle is with behind the AC power step-down rectifier, gives various charge in batteries, belongs to electric and electronic technical field.
Reactive power compensation is exactly the reactive power compensation power supply, for satisfying power network and lotus terminal voltage level and economical operation requirement, and in power network, with load side the reactive power compensation power supply is set, the load majority of electric power is inductive load, and the electric power system meeting consumes reactive energy, makes the load current phase place lag behind voltage, so that there is phase difference in voltage and current in the inductive element, the phase angle is larger, and the electricity of waste is just more, and the reactive power compensation electricity needs will increase relatively.The reactive power of employed devices consume in the electric power networks must obtain from network somewhere, is irrational if provided and transmitted these reactive powers through long distance by generator, also is impossible usually.For addressing the above problem, at present, reactive power compensation device as energy-saving and cost-reducing equipment, general power consumer all is to adopt electrostatic condenser to carry out the artificial compensation, in inductive load work, drop into a certain amount of capacitor, thereby reduce the phase difference between the voltage and current, can improve utilization rate of electrical.Therefore occurred on the market adopting capacitor to replace the capacitive charger of rectifier transformer or controllable silicon step-down, its power savings is remarkable, weak point be when this charger in charge disable not or idle the time, equipment potential is not fully exerted, because disposed a large amount of capacitors in the equipment, in order to address the above problem, a kind of capacitor is used occurred again at present electrical network has been carried out reactive power compensation, realize the function that charger can charge and can carry out reactive power compensation.Be that 200910102422.9 Chinese utility model patent has just been announced a kind of energy-saving charging, the dual-purpose machine of reactive power compensation such as application number, it is comprised of cabinet and circuit two parts, rectification is that direct current charges a battery after being characterized in adopting capacitor with the alternating current step-down, throw commutating circuit when not charging away, directly electric capacity is dropped into operation of power networks.When this machine uses as charger; can export invariable direct current; can automatically adapt to battery tension in the certain voltage scope changes; dc output end is not afraid of short circuit; no-harmonic wave pollution can be adjusted each stage charging current automatically according to the charge in batteries needs, and storage battery is full of behind the electricity can autostop; more than 30%, economize on electricity 15% or more than transformer type charger than the economize on electricity of SCR type charger.When not charging, start the compensation button, drop into operation of power networks, this machine is exactly a compensation arrangement, can improve power factor of electric network, reduces the line voltage loss, improves power supply quality, improves the ability that electrical network is carried electricity.But this technical scheme has following deficiency: when (1) realizes compensate function, adopt manual control to press the compensation button, all electric capacity drop into network operation simultaneously, impact larger to electrical network; When (2) storage battery being carried out initial charge, the necessary manual control charging interval, 36 hours phase I, second stage 36 hours is when battery Temperature is high, might stop to fill the certain hour cooling, especially long in the time, battery charger might cause the situation of timing uncertainty in the situation such as relieve, cause initial charge of poor quality, can have a strong impact on storage battery quality and life-span; (3) when carrying out daily charging, service time, relay was controlled.The shortcoming of this control mode is when needing the storage battery electric weight wretched insufficiency of charging, the time of setting differs and surely storage battery is full of electricity, and when the existing certain electric weight of the storage battery that needs charging, when only being the electric weight that need to fill seldom, storage battery hangs up the time that charger charging also will be charged to setting and could cut off the power supply, so storage battery just may cause the phenomenon of overcharging, also can have a strong impact on storage battery useful life; (4) alarm free device, storage battery just protect charger not start after connecing instead, can not send sound and light alarm, thereby cause phenomenon of the failure in time not solved.
The utility model content
For addressing the above problem, the utility model provides a kind of energy-efficient, safe and reliable, much higher function charger of automaticity.
The utility model mainly is achieved by the following technical programs:
A kind of Multifunctional charger, comprise charging circuit, compensating circuit, commutating circuit, intelligence control system, compensation contactor 1KM, charging contactor 2KM, A.C. contactor 8KM and reversal connection relay 9KA, described commutating circuit is comprised of the three phase rectifier full-bridge, the interchange arm of its three phase rectifier full-bridge connects respectively the end of the upper end of compensation contactor 1KM and capacitor group 4C, 5C, 6C, 7C, direct current output arm negative terminal connects charger direct current output loop negative pole, the direct current output arm is anodal with after charging contactor 2KM main contacts is connected, and is connected on the direct current output cathode of charger; Described intelligence control system mainly is comprised of PLC main frame, PLC module, control transformer, switching power supply, described PLC module and PLC main frame are pegged graft, the direct current 24V power supply of PLC module is provided by switching power supply, by the break-make of PLC host computer control compensation contactor 1KM, charging contactor 2KM, thus the conversion of realization charger charged state and reactive power compensation state.
For the demonstration that makes Multifunctional charger more convenient, the monitoring of relevant parameter is more direct, also comprise touch display screen, AC current sensor, AC voltage sensor, DC current sensor and direct current voltage sensor, accept the analog signals of AC current sensor, AC voltage sensor, DC current sensor, direct current voltage sensor collection by the PLC module, convert digital signal to, send into touch display screen by the PLC main frame, show various running parameters, realize its intelligent charging and compensate function.
Described compensation contactor 1KM and charging contactor 2KM realize electrical interlocks by himself auxiliary contact in control, when working, 2KM consists of charging circuit, charging circuit input and three AC power cord link, output through commutating circuit be recharged storage battery and link and realize its charging, consist of compensating circuit when 1KM works, compensating circuit input and three AC power cord link and realize its reactive power compensation.
Described A.C. contactor 8KM is as battery main switch, its front end and three AC power cord link, rear end and A.C. contactor 5KM in parallel, 6KM, 7KM links, described A.C. contactor 5KM, 6KM, be connected with A.C. contactor 8KM lower end after 7KM main contacts upper end is in parallel, 5KM main contacts lower end is connected with capacitor 5C, 6KM main contacts lower end connects with capacitor 6C and 4KM normally-closed contact, 7KM main contacts lower end connects with capacitor 7C and 4KM normally opened contact, described A.C. contactor 4KM often opens, normally closed main contact parallel, its normally closed side is connected with 6KM lower end and capacitor group 6C, it is often opened side and is connected with 7KM lower end and capacitor group 7C, the 4KM lower end is connected with capacitor group 4C, the upper end of capacitor group 5C is connected with A.C. contactor 5KM lower end, the upper end of capacitor group 6C is connected with A.C. contactor 6KM lower end and the normally closed main contacts of 4KM, and the upper end of capacitor group 7C is connected with A.C. contactor 7KM lower end.
Described DC current sensor is installed between three phase rectifier full-bridge and the charging contactor 2KM; Described direct current voltage sensor is connected in parallel on charger output positive and negative electrode two ends; Described AC current sensor is installed on the power line of battery main switch 8KM front, and AC current sensor can only only be installed one on any power line of three-phase power line, also can respectively install one on three power lines; Described AC voltage sensor is installed on the power line of battery main switch 8KM back between any two, can install altogether three between any two of three power lines, as required, also can only install one.
Described AC current sensor and AC voltage sensor sampling point are positioned on the alternating current input power supplying bus; Described DC current sensor and direct current voltage sensor sampling point are positioned at the direct current output loop, and the output signal of all the sensors is all sent into the PLC module and changed, and all working parameter shows by touch display screen.
The input contact of described PLC main frame, access respectively direct current 24V switching power supply, emergency stop push button, failure reset button, 8KM switching signal, 2KM switching signal, 9KA switching signal, 4KM switching signal, 5KM switching signal, 6KM switching signal, 7KM switching signal, all the other are for subsequent use.
Adopt technique scheme; when storage battery carries out initial charge, by the PLC Based Intelligent Control, 36 hours phase I; automatically transfer second stage behind the filling time to; autostop behind the second stage filling time, owing to take the mode of accumulative total timing, no matter in phase I or second stage; even stopped machine midway; but timekeeping system does not return zero yet, thereby guarantees the charging quality of storage battery, prolongs storage battery useful life.Simultaneously, in each stage of initial charge, the input of its capacitor group all is progressively to delay time to drop into, thereby reduces the impact to electrical network.
Adopt the technical program, to compare by the voltage that gathers storage battery when daily charging, because the voltage of storage battery and electric weight have certain relation, detecting storage battery has how high voltage, just knows how many electric weight storage battery need to replenish, when storage battery is charged to the phase I during required voltage value, automatically be transformed into second stage, when being charged to the second stage set point, storage battery is full of, charging finishes, and automatically is transformed into compensating coefficient.Adopt this control mode, when the storage battery electric weight was very low, the charging interval may prolong, and when the storage battery electric weight was high, the charging interval might shorten.Surpass the phase I during set point when being recharged bottle electric weight, may directly enter the second stage charging, the storage battery phenomenon of can not overcharging, and then can prolong storage battery useful life.Simultaneously, in each stage of daily charging, the input of its capacitor group all is progressively to delay time to drop into, thereby reduces the impact to electrical network.
Further improvement of the utility model, the normally opened contact of miniature relay K1, the K2 of described intelligence control system, K4, K5, K6, K7, K8, connect respectively A.C. contactor 1KM, 2KM, 4KM, 5KM, 6KM, 7KM, 8KM coil, when control system enters compensating coefficient, A.C. contactor 1KM, 5KM, 6KM, 7KM, 8KM work, wherein, A.C. contactor 5KM, 6KM, 7KM are the inputs of progressively delaying time, rather than devote oneself to work simultaneously.
Adopt technique scheme, when daily charging finished automatically to transfer compensating coefficient to, the grouping of the input control electric capacity of progressively delaying time by A.C. contactor 5KM, 6KM, 7KM was devoted oneself to work, after one group of input, drop into again next group through certain time-delay, until all thrown, to electrical network without impact.
Again further improvement of the present utility model; behind 1N4007 diode of described reversal connection relay 9KA coil series connection; be connected on the output both positive and negative polarity of charger; the negative pole of its 1N4007 connects the charger output cathode; the other end of reversal connection relay 9KA coil is connected to the charger output negative pole, realizes the storage battery reverse connecting protection.
Adopt technique scheme, if storage battery has connect correctly, reversal connection relay 9KA coil is not worked, and equipment can be worked.If storage battery connects instead, reversal connection relay 9KA coil gets electric work, its contact is inputted PLC with signal, system does not work on the one hand, PLC drives miniature relay K3 on the one hand, make unusual indicator light and buzzer send sound and light alarm, touch display screen shows the method that phenomenon of the failure and proposition are fixed a breakdown simultaneously.
Described control system also comprise stop/send eletric button, emergency stop push button, failure reset button,, radiator fan, power supply indicator, charging indicator light, compensation indicator light, unusual indicator light, buzzer.
The beneficial effects of the utility model are as follows:
1, the utility model with touch display screen display working condition and parameter, can be realized human-computer dialogue by adopting ac and dc current voltage sensor and PLC intelligent conversion module.
2, have communication interface, can and computer communication, realize that many chargers are online and realize Long-distance Control.
3, have sound and light of alarm under the abnormal conditions, such as: charger does not connect the storage battery No Load Start, can send sound and light alarm, and touch display screen can show the method that phenomenon of the failure and prompting are fixed a breakdown.
4, when initial charge and daily charging and compensating coefficient, the electric capacity grouping is devoted oneself to work, and after one group of input, through certain time-delay, casts one group again, until all thrown, adopts this technical scheme to impact less to electrical network.
5; when storage battery carries out initial charge; by the PLC Based Intelligent Control; automatically transfer second stage behind the phase I filling time to; autostop behind the second stage filling time; owing to take the mode of accumulative total timing; no matter in phase I or second stage midway because battery Temperature might stop to fill certain hour cooling or battery charger in high is relieving etc. when restarting charger after needing hesitation in the situation and continuing charging; timekeeping system is with the charging interval accumulation beginning timing when shutting down; rather than again since 0 timing; thereby guarantee the accuracy in storage battery charging interval; improve the quality of charging, prolong storage battery useful life.
6, compare by the voltage that gathers storage battery, because the voltage of storage battery and electric weight have certain relation, detect storage battery how high voltage is arranged, just know how many electric weight storage battery need to replenish, when storage battery is charged to the phase I during required voltage value, automatically be transformed into second stage, when being charged to the second stage set point, storage battery is full of, and charging finishes, automatically be transformed into compensating coefficient, adopt this control mode, when the storage battery electric weight was very low, the charging interval may prolong, when the storage battery electric weight was high, the charging interval might shorten.Surpass the phase I during set point when being recharged bottle electric weight, may directly enter the second stage charging, the storage battery phenomenon of can not overcharging can prolong storage battery useful life.
Description of drawings
Fig. 1 is the utility model major loop electrical schematic diagram;
Fig. 2 is the utility model control system electrical schematic diagram;
Fig. 3 is the utility model charging and building-out capacitor switching control loop electrical schematic diagram;
Fig. 4 is the utility model charging, compensation, faulty indication and controlling alarm loop electrical schematic diagram;
Fig. 5 is the utility model PLC input wires figure;
Fig. 6 is the utility model PLC output connection figure;
Fig. 7 is the utility model intelligence control system theory diagram.
Among the figure: 1-three phase rectifier full-bridge, 2-DC current sensor, 3-direct current voltage sensor, the 4-AC voltage sensor, the 5-AC current sensor, 6-control power supply input master switch, 7-control transformer, 8-control power supply output master switch, 9-stops/send electric knob, 10-PLC main frame, 11-PLC module, the 12-touch display screen, the 13-radiator fan, 14-switching power supply, 15-power supply indicator, 16-compensates indicator light, the 17-charging indicator light, 18-buzzer, the unusual indicator light of 19-, the 20-emergency stop push button, 21-failure reset button.
Embodiment
Further describe the technical solution of the utility model below in conjunction with accompanying drawing, but that claimed scope is not limited to is described.
Extremely shown in Figure 7 such as Fig. 1, a kind of Multifunctional charger, comprise charging circuit, compensating circuit, commutating circuit, intelligence control system, compensation contactor 1KM, charging contactor 2KM, A.C. contactor 8KM and reversal connection relay 9KA, described commutating circuit is comprised of three phase rectifier full-bridge 1, the interchange arm of its three phase rectifier full-bridge 1 connects respectively upper end and the capacitor group 4C of compensation contactor 1KM, 5C, 6C, the end of 7C, direct current output arm negative terminal connects charger direct current output loop negative pole, the direct current output arm is anodal with after charging contactor 2KM main contacts is connected, and is connected on the direct current output cathode of charger; Described intelligence control system mainly is comprised of PLC main frame 10, PLC module 11, control transformer 7, switching power supply 14, described PLC module 11 and PLC main frame 10 are pegged graft, the direct current 24V power supply of PLC module 11 is provided by switching power supply 14, by the break-make of PLC main frame 10 control and compensation contactor 1KM, charging contactor 2KM, thus the conversion of realization charger charged state and reactive power compensation state.
For the demonstration that makes Multifunctional charger more convenient, the monitoring of relevant parameter is more direct, also comprise touching and show 12 screens, AC current sensor 5, AC voltage sensor 4, DC current sensor 2 and direct current voltage sensor 3, accept the analog signals of AC current sensor 5, AC voltage sensor 4, DC current sensor 2, direct current voltage sensor 3 collections by PLC module 11, convert digital signal to, send into touch display screen 12 by PLC main frame 10, show various running parameters, realize its intelligent charging and compensate function.
Described compensation contactor 1KM and charging contactor 2KM realize electrical interlocks by himself auxiliary contact in control, when working, 2KM consists of charging circuit, charging circuit input and three AC power cord link, output through commutating circuit be recharged storage battery and link and realize its charging, consist of compensating circuit when 1KM works, compensating circuit input and three AC power cord link and realize its reactive power compensation.
Described A.C. contactor 8KM is as battery main switch, its front end and three AC power cord link, rear end and A.C. contactor 5KM in parallel, 6KM, 7KM links, described A.C. contactor 5KM, 6KM, be connected with A.C. contactor 8KM lower end after 7KM main contacts upper end is in parallel, 5KM main contacts lower end is connected with capacitor 5C, 6KM main contacts lower end connects with capacitor 6C and 4KM normally-closed contact, 7KM main contacts lower end connects with capacitor 7C and 4KM normally opened contact, described A.C. contactor 4KM often opens, normally closed main contact parallel, its normally closed side is connected with 6KM lower end and capacitor group 6C, it is often opened side and is connected with 7KM lower end and capacitor group 7C, the 4KM lower end is connected with capacitor group 4C, the upper end of capacitor group 5C is connected with A.C. contactor 5KM lower end, the upper end of capacitor group 6C is connected with A.C. contactor 6KM lower end and the normally closed main contacts of 4KM, and the upper end of capacitor group 7C is connected with A.C. contactor 7KM lower end.
Described DC current sensor 2 is installed between three phase rectifier full-bridge 1 and the charging contactor 2KM; Described direct current voltage sensor 3 is connected in parallel on charger output positive and negative electrode two ends; Described AC current sensor 5 is installed on the power line of battery main switch 8KM front, and AC current sensor 5 can only only be installed one on any power line of three-phase power line, also can respectively install one on three power lines; Described AC voltage sensor 4 is installed on the power line of battery main switch 8KM back between any two, can install altogether three between any two of three power lines, as required, also can only install one.
Described AC current sensor 5 and AC voltage sensor 4 sampling points are positioned on the alternating current input power supplying bus; Described DC current sensor 2 and direct current voltage sensor 3 sampling points are positioned at the direct current output loop, and the output signal of all the sensors is all sent into PLC module 11 and changed, and all working parameter shows by touch display screen 12.
The input contact of described PLC main frame 10, access respectively direct current 24V switching power supply 14, emergency stop push button 20, failure reset button 21,8KM switching signal, 2KM switching signal, 9KA switching signal, 4KM switching signal, 5KM switching signal, 6KM switching signal, 7KM switching signal, all the other are for subsequent use.
The normally opened contact of miniature relay K1, the K2 of described intelligence control system, K4, K5, K6, K7, K8, connect respectively A.C. contactor 1KM, 2KM, 4KM, 5KM, 6KM, 7KM, 8KM coil, when control system enters compensating coefficient, A.C. contactor 1KM, 5KM, 6KM, 7KM, 8KM work, wherein, A.C. contactor 5KM, 6KM, 7KM are the inputs of progressively delaying time, rather than devote oneself to work simultaneously.
Behind 1N4007 diode of described reversal connection relay 9KA coil series connection; be connected on the output both positive and negative polarity of charger; the negative pole of its 1N4007 connects the charger output cathode, and the other end of reversal connection relay 9KA coil is connected to the charger output negative pole, realizes the storage battery reverse connecting protection.
Described intelligence control system also comprises stops/send eletric button 9, radiator fan 13, power supply indicator 15, charging indicator light 17, compensation indicator light 16, unusual indicator light 19, buzzer 18.
The utility model adopts ac and dc current voltage sensor and PLC main frame 10 to realize automatic control able to programme, realize the conversion of analog quantity and digital quantity by PLC module 11, utilize touch display screen 12 to show various operating states and running parameter, and realize human-computer dialogue.Its each parts major function is as follows:
The effect of control transformer 7 provides control system PLC main frame 10, PLC module 11, power supply indicator 15, buzzer 18, switching power supply 14 and radiator fan 13 needed 220V AC power.The former side of control transformer 7 establishes control power supply input master switch 6, and pair side establishes control power supply output master switch 8.
The effect of switching power supply 14 provides the PLC of system main frame 10, PLC module 11, touch display screen 12, transducer and the needed direct current 24V of miniature relay stabilized voltage power supply.
DC current sensor 2, direct current voltage sensor 3, AC voltage sensor 4, the direct current 24V stabilized voltage power supply of AC current sensor 5 provides by switching power supply 14, AC current sensor 5, AC voltage sensor 4 sampling points are positioned on the alternating current input power supplying bus, DC current sensor 2, direct current voltage sensor 3 sampling points are positioned at the direct current output loop, the output signal of all the sensors is all sent into PLC module 11 and is changed, and all working parameter shows by touch display screen 12.
Adopt PLC main frame 10 to realize automatic control able to programme, PLC module 11 realizes the conversion of analog quantity and digital quantity.Show various operating states and running parameter by touch display screen 12, and realize human-computer dialogue.
The described cabinet left and right sides is equipped with two radiator fans 13, and its effect is that hot-air in the cabinet is discharged outside the cabinet, reduces working temperature in the cabinet.
Stop/send eletric button 8 and be used for stopping/send the 220V AC power to control system, emergency stop push button 20 is used in time shutting down under emergency or failure condition, and failure reset button 21 is used for making system reset in the situation of fixing a breakdown.
Miniature relay K1, K2, K4, K5, K6, K7, K8 are driven by PLC, and adhesive and the release of 1KM, 2KM, 4KM, 5KM, 6KM, 7KM, 8KM is controlled respectively in its contact.
It is as follows to further describe the utility model operation principle below in conjunction with Fig. 1 to Fig. 7:
1, Power supply principle: at first will exchange the 380V voltage transitions by control transformer 7 is alternating current 220V voltage, and control system PLC main frame 10, indication warning loop, switching power supply 14 and the needed alternating current 220V power supply of radiator fan 13 work are provided.Next with alternating current 220V voltage transitions direct current 24V voltage, provides control system PLC main frame 10, PLC module 11, touch display screen 12, AC voltage sensor 4, AC current sensor 5, DC current sensor 2, direct current voltage sensor 3, miniature relay, the needed direct current 24V of input and output loop works power supply by switching power supply 14.
2, job control principle: AC voltage sensor 4, AC current sensor 5, DC current sensor 2, direct current voltage sensor 3 are delivered to respectively PLC module 11 with measured voltage and current analog signals, be converted to corresponding digital quantity signal through PLC module 11, PLC main frame 10 reads the digital quantity signal after PLC module 11 conversion and shows by touch display screen 12, so that the user observes the running parameter of charger.The user is by finishing the selection to the operating state of charger, the setting of running parameter and the supervision of operating state to the operation of touch display screen 12 simultaneously; As: the selection charger is operating state and the parameters such as setting charging interval, charging voltage such as compensation, initial charge, daily charging, shutdown.When by to the running parameter of the good charger of operating and setting of touch display screen 12 with after choosing the operating state of charger, PLC main frame 10 will be exported corresponding control signal according to corresponding requirement, and by the corresponding control of PLC output control circuit execution function, thereby the operating state of control major loop, make corresponding contactor work, thereby the coming into operation or disconnect of control corresponding capacitance is to obtain the charging current under the different operating state.Make major loop carry out corresponding operating state, as: initial charge, daily charging, compensation etc.Show corresponding operating state and running parameter by the indication of indication loop, touch display screen 12 simultaneously, as: initial charge, daily charging, compensation, charging voltage, charging current, charging interval etc.When charger because operation improper use or shut down by PLC control charger when breaking down; PLC main frame 10 is also exported to the PLC output control circuit with fault-signal and is made the indication warning loop works; send sound and light alarm, show phenomenon of the failure and the method for fixing a breakdown by touch display screen 12 simultaneously.After under emergency or failure condition, needing timely shutdown, fixing a breakdown, make system reset, switch on and off the control system power supply and can be respectively stop/send eletric button 9, emergency stop push button 20,21 operations of failure reset button in the PLC input control loop be realized.
The utility model PLC control main points are as follows:
1, after the device power, needs the input password, just can operate;
2, after the input password enters system, there are three kinds of states to select arbitrarily: initial charge, daily charging, compensation;
3, initial charge
Be charged as initial charge the first time before new storage battery uses, and initial charge is important, and the quality of charging quality has influence on quality and the life-span of storage battery.Initial charge is carried out in two stages, phase I need to charge 36 hours, second stage need to be charged 36 hours, the charging current of second stage is half of phase I charging current, therefore, operation is as follows during programming: (1) if there is storage battery to connect anti-situation, equipment can not be worked and be sent sound and light alarm, if equipment output end does not connect storage battery, also send sound and light alarm behind the starting device; (2) phase I of initial charge, 2KM, 4KM, 6KM, 7KM, 8KM work, second stage 2KM, 4KM, 7KM, 8KM work; (3) in each stage of initial charge, timer has the accumulation function, that is to say, after supposing to be charged to certain hour, because of certain reason cooling degree etc. that need to stop, when continuing initial charge, the time cumulation that need to have been charged in the front rather than again since 0.Phase I enters second stage after accumulative total is full of 36 hours automatically, autostop after second stage accumulative total is full of 36 hours.(4) in each stage of initial charge, the input of its capacitor group all is progressively to delay time to drop into.
4, daily charging
Daily charging is also carried out in two stages, the phase I:, 2KM, 5KM, 6KM, 7KM, 8KM work, second stage 2KM, 5KM, 7KM, 8KM work.Operation is as follows during programming: (1) if there is storage battery to connect anti-situation, sound and light alarm can not be worked and send to equipment, if equipment output end is not connected to storage battery, also sends sound and light alarm behind the starting device; The conversion of (2) first second stage, do not resemble the initial charge take the reference quantity of charging interval as conversion, but change take battery voltage as reference, storage battery is in the process of charging, voltage progressively raises, we set a magnitude of voltage, when voltage rises to this magnitude of voltage, are automatically converted to the second stage charging; (3) enter second stage charging after, battery voltage continues to raise, when being elevated to a certain magnitude of voltage, the expression storage battery has been full of needed electric weight, the second stage charging finishes; (4) after the second stage charging finished, equipment was automatically converted to compensating coefficient.(5) in each stage of daily charging, the input of its capacitor group all is progressively to delay time to drop into.
5, compensation
Equipment enters compensating coefficient two approach, and the one, the input password is directly selected compensate function after entering system, and the 2nd, daily charging is automatically converted to compensating coefficient after finishing.No matter be to select compensate function or automatically enter compensating coefficient, the input of its capacitor group all is progressively to delay time to drop into.During compensation, 1KM, 5KM, 6KM, 7KM, 8KM work, wherein, 5KM, 6KM, 7KM progressively delay time to drop into, and are not to devote oneself to work simultaneously.
Claims (10)
1. Multifunctional charger, comprise charging circuit, compensating circuit, commutating circuit, intelligence control system, compensation contactor 1KM, charging contactor 2KM, A.C. contactor 8KM and reversal connection relay 9KA, it is characterized in that: described commutating circuit is comprised of three phase rectifier full-bridge (1), the interchange arm of its three phase rectifier full-bridge (1) connects respectively upper end and the capacitor group 4C of compensation contactor 1KM, 5C, 6C, the end of 7C, direct current output arm negative terminal connects charger direct current output loop negative pole, the direct current output arm is anodal with after charging contactor 2KM main contacts is connected, and is connected on the direct current output cathode of charger; Described intelligence control system mainly is comprised of PLC main frame (10), PLC module (11), control transformer (7), switching power supply (14), described PLC module (11) and PLC main frame (10) are pegged graft, the direct current 24V power supply of PLC module (11) is provided by switching power supply (14), by the break-make of PLC main frame (10) control and compensation contactor 1KM, charging contactor 2KM, thus the conversion of realization charger charged state and reactive power compensation state.
2. a kind of Multifunctional charger according to claim 1, it is characterized in that: described intelligence control system also comprises touch display screen (12), AC current sensor (5), AC voltage sensor (4), DC current sensor (2) and direct current voltage sensor (3), accept AC current sensor (5) by PLC module (11), AC voltage sensor (4), DC current sensor (2), the analog signals that direct current voltage sensor (3) gathers, convert digital signal to, send into touch display screen (12) by PLC main frame (10), show various running parameters, realize its intelligent charging and compensate function.
3. a kind of Multifunctional charger according to claim 1, it is characterized in that: described compensation contactor 1KM and charging contactor 2KM realize electrical interlocks by himself auxiliary contact in control, when working, 2KM consists of charging circuit, charging circuit input and three AC power cord link, output through commutating circuit be recharged storage battery and link and realize its charging, consist of compensating circuit when 1KM works, compensating circuit input and three AC power cord link and realize its reactive power compensation.
4. a kind of Multifunctional charger according to claim 1, it is characterized in that: described A.C. contactor 8KM is as battery main switch, its front end and three AC power cord link, rear end and A.C. contactor 5KM in parallel, 6KM, 7KM links, described A.C. contactor 5KM, 6KM, be connected with A.C. contactor 8KM lower end after 7KM main contacts upper end is in parallel, 5KM main contacts lower end is connected with capacitor 5C, 6KM main contacts lower end connects with capacitor 6C and 4KM normally-closed contact, 7KM main contacts lower end connects with capacitor 7C and 4KM normally opened contact, described A.C. contactor 4KM often opens, normally closed main contact parallel, its normally closed side is connected with 6KM lower end and capacitor group 6C, it is often opened side and is connected with 7KM lower end and capacitor group 7C, the 4KM lower end is connected with capacitor group 4C, the upper end of capacitor group 5C is connected with A.C. contactor 5KM lower end, the upper end of capacitor group 6C is connected with A.C. contactor 6KM lower end and the normally closed main contacts of 4KM, and the upper end of capacitor group 7C is connected with A.C. contactor 7KM lower end.
5. a kind of Multifunctional charger according to claim 1, it is characterized in that: described DC current sensor (2) is installed between three phase rectifier full-bridge (1) and the charging contactor 2KM; Described direct current voltage sensor (3) is connected in parallel on charger output positive and negative electrode two ends; Described AC current sensor (5) is installed on the power line of battery main switch 8KM front, AC current sensor (5) can only only be installed one on any power line of three-phase power line, also can respectively install one on three power lines; Described AC voltage sensor (4) is installed on the power line of battery main switch 8KM back between any two, can install altogether three between any two of three power lines, as required, also can only install one.
6. a kind of Multifunctional charger according to claim 1, it is characterized in that: described AC current sensor (5) and AC voltage sensor (4) sampling point are positioned on the alternating current input power supplying bus; Described DC current sensor (2) and direct current voltage sensor (3) sampling point are positioned at the direct current output loop, the output signal of all the sensors is all sent into PLC module (11) and is changed, and all working parameter shows by touch display screen (12).
7. a kind of Multifunctional charger according to claim 1, it is characterized in that: the input contact of described PLC main frame (10), access respectively direct current 24V switching power supply (14), emergency stop push button (20), failure reset button (21), 8KM switching signal, 2KM switching signal, 9KA switching signal, 4KM switching signal, 5KM switching signal, 6KM switching signal, 7KM switching signal, all the other are for subsequent use.
8. a kind of Multifunctional charger according to claim 1, it is characterized in that: the normally opened contact of miniature relay K1, the K2 of described intelligence control system, K4, K5, K6, K7, K8, connect respectively A.C. contactor 1KM, 2KM, 4KM, 5KM, 6KM, 7KM, 8KM coil, when control system enters compensating coefficient, 1KM, 5KM, 6KM, 7KM, 8KM work, wherein, 5KM, 6KM, 7KM are the inputs of progressively delaying time, rather than devote oneself to work simultaneously.
9. a kind of Multifunctional charger according to claim 1; it is characterized in that: behind 1N4007 diode of described reversal connection relay 9KA coil series connection; be connected on the output both positive and negative polarity of charger; the negative pole of its 1N4007 connects the charger output cathode; the other end of reversal connection relay 9KA coil is connected to the charger output negative pole, realizes the storage battery reverse connecting protection.
10. a kind of Multifunctional charger according to claim 1 is characterized in that: described intelligence control system also comprises stops/send eletric button (9), radiator fan (13), power supply indicator (15), charging indicator light (17), compensation indicator light (16), unusual indicator light (19), buzzer (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202773759U CN202712939U (en) | 2012-06-12 | 2012-06-12 | Multifunctional charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202773759U CN202712939U (en) | 2012-06-12 | 2012-06-12 | Multifunctional charger |
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| Publication Number | Publication Date |
|---|---|
| CN202712939U true CN202712939U (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202773759U Expired - Fee Related CN202712939U (en) | 2012-06-12 | 2012-06-12 | Multifunctional charger |
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| Country | Link |
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| CN (1) | CN202712939U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709998A (en) * | 2012-06-12 | 2012-10-03 | 六盘水金星机电设备有限公司 | Multifunctional charger |
| CN104723897A (en) * | 2015-02-15 | 2015-06-24 | 菏泽郓城职业技能鉴定基地 | Alternating and direct current integrated intelligent charging connecting device |
-
2012
- 2012-06-12 CN CN2012202773759U patent/CN202712939U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709998A (en) * | 2012-06-12 | 2012-10-03 | 六盘水金星机电设备有限公司 | Multifunctional charger |
| CN102709998B (en) * | 2012-06-12 | 2014-10-01 | 六盘水金星机电设备有限公司 | Multifunctional charger |
| CN104723897A (en) * | 2015-02-15 | 2015-06-24 | 菏泽郓城职业技能鉴定基地 | Alternating and direct current integrated intelligent charging connecting device |
| CN104723897B (en) * | 2015-02-15 | 2018-04-13 | 沂南县明宇电力技术服务有限公司 | AC/DC integrated intelligent charge attachment device |
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