CN110970976A - Storage battery charging box - Google Patents
Storage battery charging box Download PDFInfo
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- CN110970976A CN110970976A CN201911335935.4A CN201911335935A CN110970976A CN 110970976 A CN110970976 A CN 110970976A CN 201911335935 A CN201911335935 A CN 201911335935A CN 110970976 A CN110970976 A CN 110970976A
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- 238000010248 power generation Methods 0.000 claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 19
- 230000003993 interaction Effects 0.000 claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims description 16
- 238000004804 winding Methods 0.000 description 25
- 238000010586 diagram Methods 0.000 description 12
- 230000005611 electricity Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 1
- 238000012935 Averaging Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a novel storage battery charging box which comprises seven storage battery charging modules, a power supply module, two square wave control signal modules, a selection control switch module, a communication module, a bearing circuit board, a bearing box body, a photovoltaic power generation device and a human-computer interaction device, wherein the seven storage battery charging modules are connected with the power supply module; the seven storage battery charging modules, the power supply module, the two square wave control signal modules, the selection control switch module and the communication module are divided into two rows and fixedly connected to the bearing circuit board; the two bearing circuit boards are fixedly connected to the upper half part of the bearing box body; the lower half part of the bearing box body is a storage chamber; the photovoltaic power generation device is electrically connected with the power module and used for photovoltaic power supply; the man-machine interaction device is in signal connection with the communication module and used for displaying and controlling. The device can charge the storage batteries of different models simultaneously, and has the advantages of good power supply quality, large current, high charging speed and good application prospect.
Description
Technical Field
The invention relates to the field of electrical equipment, in particular to a novel storage battery charging box.
Background
At present, storage battery charging and discharging maintenance equipment is mainly used for single batteries or single-group batteries, but the storage batteries are frequently used, large in quantity and various in airports, wharfs, stations and the like. Therefore, charging and discharging equipment on the market is not careful, so that customers are very inconvenient to use, and scattered equipment is complex to maintain.
In addition, in the field electricity utilization operation process of the military, the storage battery charging is a problem which is difficult to solve due to the fact that a plurality of field electricity utilization equipment are provided. At present, the storage battery can only carry out one charging work during charging, and can not carry out maintenance work such as centralized management and the like; meanwhile, the storage battery is charged after the electric quantity reaches the minimum, so that the continuous use of the electricity is influenced. Such a variety makes maintenance and management of the battery particularly difficult.
In summary, with the wide application of various types of storage batteries, it is important to solve the problem of concentrated charging and discharging of the storage batteries.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a novel storage battery charging box to overcome the defects in the prior art.
In order to achieve the purpose, the invention provides a novel storage battery charging box which comprises a TBP0306 storage battery charging module, a TBP0307 storage battery charging module, a DDZ-01A storage battery charging module, a TBP316 storage battery charging module I, a TBP316 storage battery charging module II, a TBP316 storage battery charging module III, a TBP316 storage battery charging module IV, a power supply module, a square wave control signal module I, a square wave control signal module II, a selection control switch module, a communication module, a bearing circuit board, a bearing box body, a photovoltaic power generation device and a human-computer interaction device; the TBP0306 storage battery charging module, the TBP0307 storage battery charging module, the DDZ-01A storage battery charging module, the TBP316 storage battery charging module I, the TBP316 storage battery charging module II, the TBP316 storage battery charging module III, the TBP316 storage battery charging module IV, the power supply module, the square wave control signal module I, the square wave control signal module II, the selection control switch module and the communication module are divided into two rows, and all the two rows are modularly and fixedly connected to the bearing circuit board; the TBP0306 battery charging module, the TBP0307 battery charging module, the DDZ-01A battery charging module, the TBP316 battery charging module I, the TBP316 battery charging module II, the TBP316 battery charging module III and the TBP316 battery charging module IV are arranged in parallel in a row; the power supply module, the square wave control signal module I, the square wave control signal module II, the selection control switch module and the communication module are arranged in parallel in another row; the upper half part of the bearing box body is a hollow box body, and the lower half part of the bearing box body is a storage chamber; the two bearing circuit boards are fixedly connected to the upper half part of the bearing box body; the end I of the photovoltaic power generation device is electrically connected with the power supply module and used for supplying power; the man-machine interaction device is in signal connection with the communication module and is used for displaying and controlling.
Preferably, the power supply standard of the TBP0306 battery charging module is 25.2V/1.8A, the power supply standard of the TBP0307 battery charging module is 14.4V/0.4A, and the power supply standard of the DDZ-01A battery charging module is 4.25V/2A.
Preferably, the power supply standards of the TBP316 storage battery charging module I, the TBP316 storage battery charging module II, the TBP316 storage battery charging module III and the TBP316 storage battery charging module IV are the same as 14.4V/0.75A.
Preferably, the photovoltaic power generation device comprises a photovoltaic power generation array and a junction box; the photovoltaic power generation array is electrically connected with the end I of the confluence box and is used for photovoltaic power generation; and the II ends of the confluence box are used as the I ends of the photovoltaic power generation device and used for confluence.
Preferably, the human-computer interaction device comprises a fixed column and an LEC control screen; the fixed column is placed on the ground; the LEC control screen is fixedly connected to the fixing column; and the LEC control screen is provided with 7 histogram electric quantity display and on-off control buttons corresponding to the storage battery power supply modules.
The invention also provides a power supply circuit according to the storage battery charging box, and the power supply circuit comprises a power supply, a square wave control signal I, a square wave control signal II, a selective control switch, a transformer T1, a transformer T2, a transformer T3, a transformer T4, a load I side circuit, a load II side circuit, a load III side circuit and a load IV side circuit; the negative electrode of the power supply is electrically connected with the end I of the square wave control signal I and the end II of the square wave control signal II; the positive electrode of the power supply is electrically connected with the end I of the selective control switch; the end II of the square wave control signal I is electrically connected with the end I of the transformer T1, the end I of the transformer T2, the end I of the transformer T3 and the end I of the transformer T4; the I end of the square wave control signal II is electrically connected with the II end of the transformer T1, the II end of the transformer T2, the II end of the transformer T3 and the II end of the transformer T4; the end II of the selection control switch is electrically connected with the end III of the transformer T1; the end III of the selective control switch is electrically connected with the end III of the transformer T2; the IV end of the selective control switch is electrically connected with the III end of the transformer T3; the V end of the selective control switch is electrically connected with the III end of the transformer T4; the IV end, the V end and the VI end of the transformer T1 are electrically connected with the circuit at the I side of the load; the IV end, the V end and the VI end of the transformer T2 are electrically connected with the circuit on the load II side; the IV end, the V end and the VI end of the transformer T3 are electrically connected with the circuit on the side of the load III; and the IV end, the V end and the VI end of the transformer T4 are electrically connected with the load IV side circuit.
Preferably, the I-side circuit of the load comprises a diode D1Diode D2Inductor L1And a capacitor C1(ii) a The diode D1The end I of the load is used as the end 1 of the circuit at the side I of the load; the diode D2The I end of the load I is used as the 2 end of the I side circuit of the load; the diode D1End II of and the diodePipe D2Terminal II, the inductance L1The ends I are electrically connected; the inductance L1Terminal II of and the capacitor C1The end I is electrically connected and used as the anode of the end I of the output voltage; the inductor C1And terminal II and the transformer T1And the VI end is electrically connected and used as a negative electrode of the I end of the output voltage.
Preferably, the load ii side circuit and the load iii side circuit each have the same circuit configuration as the load i side circuit.
Preferably, the load IV side circuit comprises a diode D7Diode D8Inductor L4And a capacitor C4(ii) a The diode D7The terminal I is used as the terminal 1 of the circuit at the side of the load IV; the diode D8The terminal I is used as the terminal 2 of the circuit at the side of the load IV; the diode D7And the diode D8Terminal II, the inductance L4The ends I are electrically connected; the inductance L4Terminal II of and the capacitor C4The end I is electrically connected and is used as the anode of the ends IV, V, VI and VII of the output voltage; the inductor C4And the terminal II is electrically connected with the terminal VI of the transformer T4 and is used as the cathode of the terminals IV, V, VI and VII of the output voltage.
Preferably, the power supply is located in the power supply module; the square wave control signal I is generated by the square wave control signal module I; the square wave control signal II is generated by the square wave control signal module II; the selection control switch is positioned in the selection control switch module and is in signal connection with the communication module; the output voltage I end of the power supply circuit is used as an input power supply of the TBP0306 storage battery charging module; the output voltage II end of the power supply circuit is used as an input power supply of the TBP0307 storage battery charging module; the output voltage III end of the power supply circuit is used as an input power supply of the DDZ-01A storage battery charging module; the output voltage IV end of the power supply circuit is used as an input power supply of the TBP316 storage battery charging module I; the output voltage V end of the power supply circuit is used as an input power supply of the TBP316 storage battery charging module II; the VI end of the output voltage of the power supply circuit is used as an input power supply of the TBP316 storage battery charging module III; and the VII end of the output voltage of the power supply circuit is used as an input power supply of the TBP316 storage battery charging module IV.
Compared with the prior art, the invention has the beneficial effects that:
(1) the photovoltaic array and the combiner box are used as a power source of the whole device, the photovoltaic array and the combiner box are suitable for areas which are difficult to be related to power networks in the field and suburb, the application range of the storage battery charging box is expanded, and the possibility is provided for charging the storage batteries in the army and the field camp.
(2) The charging port, the charging circuit, the power supply system and the human-computer interaction device are all in modular design, so that the whole charging box is convenient to disassemble, assemble and carry.
(3) The power supply circuit adopted by the invention has the advantages of less power supply voltage ripples, low harmonic content and good power quality.
(4) The power supply circuit design of the invention can complete the simultaneous charging of 7 storage batteries (4 types of storage batteries), is convenient to use and greatly reduces the charging time.
(5) The human-computer interaction device can display the charging state of the storage battery, is provided with 7 'on' and 'off' buttons simultaneously, controls each charging port, facilitates daily use, and is visual in display and convenient to operate.
Drawings
Fig. 1 is a schematic diagram of the external structure of a novel battery charging box according to the present invention;
FIG. 2 is a power supply circuit diagram of a novel battery charging box of the present invention;
FIG. 3 is a diagram of various voltage waveforms on the coil side of the transformer when the power supply circuit of the present invention is in operation;
fig. 4 is a diagram showing waveforms of voltages on the output voltage side when the power supply circuit of the present invention is in operation.
Detailed Description
In order to further understand the structure, characteristics and other objects of the present invention, the following detailed description is given with reference to the accompanying preferred embodiments and the accompanying drawings, wherein the embodiments described in the drawings are only used for illustrating the technical solutions of the present invention and do not limit the present invention.
Firstly, as shown in fig. 1, fig. 1 is an external structural schematic diagram of a novel battery charging box of the present invention; the battery charging box includes: the system comprises a TBP0306 storage battery charging module 1, a TBP0307 storage battery charging module 2, a DDZ-01A storage battery charging module 3, a TBP316 storage battery charging module I4, a TBP316 storage battery charging module II 5, a TBP316 storage battery charging module III 6, a TBP316 storage battery charging module IV 7, a power supply module 8, a square wave control signal module I9, a square wave control signal module II 10, a selection control switch module 11, a communication module 12, a bearing circuit board 13, a bearing box 14, a photovoltaic power generation device 15 and a human-computer interaction device 16; the seven storage battery charging modules, the power supply module 8, the square wave control signal module I9, the square wave control signal module II 10, the selection control switch module 11 and the communication module 12 are divided into two rows in total and are all modularly and fixedly connected to the bearing circuit board 13; the seven storage battery charging modules are arranged in parallel in a row; the power supply module 8, the square wave control signal module I9, the square wave control signal module II 10, the selection control switch module 11 and the communication module 12 are arranged in another row in parallel; the upper half part of the bearing box body 14 is a hollow box body, and the lower half part is a storage chamber; the two bearing circuit boards 13 are fixedly connected to the upper half part of the bearing box body 14; the end I of the photovoltaic power generation device 15 is electrically connected with the power module 8 and used for supplying power; the human-computer interaction device 16 is in signal connection with the communication module 12 and is used for displaying and controlling.
The working principle is as follows: firstly, when some storage batteries need to be charged in the field or in stations and the like, a user inserts the storage batteries into storage battery charging modules corresponding to the types of the storage batteries; then, by means of the human-computer interaction device 16, pressing an "on" button corresponding to the working battery charging module; secondly, the human-computer interaction device 16 works and sends a control signal to the communication module 12; thirdly, the communication module 12 controls the power module 8, the square wave control signal module I9, the square wave control signal module II 10 and the selection control switch module 11 to work, power is supplied to the relevant storage battery charging module, and the storage battery enters a charging state; thirdly, displaying the relevant histogram on the human-computer interaction device 16, and displaying the charging capacity, namely the SOC, in the storage battery in real time; and finally, when the electric quantity of the storage battery is fully charged by more than 85%, a user can press an off button corresponding to the human-computer interaction device 16, the storage battery charging operation is finished, the storage battery charging module stops supplying power, and the related histogram stops displaying.
In addition, the power supply standard of the TBP0306 storage battery charging module 1 is 25.2V/1.8A; the power supply standard of the TBP0307 storage battery charging module 2 is 14.4V/0.4A; the power supply standard of the DDZ-01A storage battery charging module 3 is 4.25V/2A; the power supply standards of the TBP316 storage battery charging module I4, the TBP316 storage battery charging module II 5, the TBP316 storage battery charging module III 6 and the TBP316 storage battery charging module IV 7 are 14.4V/0.75A.
In addition, the photovoltaic power generation apparatus 15 includes a photovoltaic power generation array 151 and a junction box 152; the photovoltaic power generation array is used for photovoltaic power generation; the junction box 152 is used for junction, and smoothly merges the electric energy generated by the photovoltaic into the power module 8.
In addition, referring to fig. 2, fig. 2 is a power supply circuit diagram of a novel battery charging box; the power supply circuit includes: a power supply 81, a square wave control signal I91, a square wave control signal II 101, a selection control switch 111, a transformer T1131, a transformer T2132, a transformer T3133, a transformer T4134, a load I side circuit 135, a load II side circuit 136, a load III side circuit 137 and a load IV side circuit 138; the negative electrode of the power supply 81 is electrically connected with the end I of the square wave control signal I91 and the end II of the square wave control signal II 101; the positive electrode of the power supply 81 is electrically connected to the terminal i of the selection control switch 111; the end II of the square wave control signal I91 is electrically connected with the end I of the transformer T1131, the end I of the transformer T2132, the end I of the transformer T3133 and the end I of the transformer T4134; the I end of the square wave control signal II 101 is electrically connected with the II end of the transformer T1131, the II end of the transformer T2132, the II end of the transformer T3133 and the II end of the transformer T4134; the end II of the selection control switch 111 is electrically connected with the end III of the transformer T1131; the end III of the selection control switch 111 is electrically connected with the end III of the transformer T2132; the IV end of the selection control switch 111 is electrically connected with the III end of the transformer T3133; the v terminal of the selection control switch 111 is electrically connected to the iii terminal of the transformer T3133; the v end of the selection control switch 111 is electrically connected with the iii end of the transformer T4134; the IV end, the V end and the VI end of the transformer T1131 are electrically connected with the I-side circuit 135 of the load; the IV end, the V end and the VI end of the transformer T2132 are electrically connected with the load II side circuit 136; the IV, V and VI terminals of the transformer T3133 are electrically connected to the load III side circuit 137; the iv, v and vi terminals of the transformer T4134 are electrically connected to the load iv side circuit 138.
The load I-side circuit 135 includes a diode D 11351. Diode D 21352. Inductor L11353 and a capacitor C 11354, and (3) preparing; the diode D 11351 as the 1 terminal of the I side circuit 135 of the load; the diode D 21352 as the 2 terminal of the load i side circuit 135; the diode D 11351 and the diode D 21352, the inductor L11353 are electrically connected with each other; the inductance L11353 and the capacitor C 11354 is electrically connected with the I end of the output voltage and is used as the anode of the I end of the output voltage; the inductor C 11354 and the transformer T 1131 is electrically connected and serves as the negative terminal of the output voltage i.
The load ii side circuit 136, the load iii side circuit 137, and the load iv side circuit 138 have the same or similar circuit configurations as the load i side circuit 135.
Please refer to fig. 3. FIG. 3 is a diagram of various voltage waveforms on the coil side of the transformer when the power supply circuit of the present invention is in operation; fig. a) shows the operation of the square-wave control signal I91At the same time, the voltage waveform at the two ends of the winding of the primary coil N1 of the switching transformer; graph b) shows the voltage waveform across the winding of the primary winding N2 of the switching transformer when the square wave control signal ii 92 is in operation; graph c) shows the output voltage u across the winding of the secondary winding N3 of the switching transformer when the square wave control signal I91 and the square wave control signal II 101 work in turn0The waveform of (2). Graph d) shows a full-wave rectified voltage waveform of the output voltage across the winding of the secondary winding N3 of the switching transformer.
In diagram c), Up-represent the output voltage u across the winding of the secondary winding N3 of the switching transformer, respectively0Positive maximum value (half-wave mean value) and negative maximum value (half-wave mean value), [ Up []、[Up-]Respectively representing the positive maximum value (half-wave average value) and the negative maximum value (half-wave average value) of the flyback output voltage across the winding of the secondary coil N3 of the switching transformer.
In theory of electricity, the flyback output voltages [ Up ] and [ Up- ] have high pulse amplitudes, but have low energy, i.e., narrow widths, and have amplitudes that become low after clipping and averaging. In the rectification output circuit, the amplitude of flyback output voltage [ Up ], [ Up- ] is generally not higher than the amplitude of Up, Up-, and the amplitude is higher than the voltage amplitude limit of Up, Up-to-be-filtered capacitor, or the input power voltage amplitude limit is input through the mutual inductance of two primary coils of the transformer.
In fig. d), when the solid line waveform corresponds to the square wave control signal i 91, the output voltage at the two ends of the winding of the secondary coil N3 of the switching transformer has a waveform after bridge or full-wave rectification; when the dotted line waveform corresponds to the square wave control signal II 101, the output voltage at the two ends of the winding of the secondary coil N3 of the switching transformer is in a waveform after bridge type or full wave rectification. U shapeaRepresenting the average value of the rectified output voltage. From the waveform diagram of fig. d), it is difficult to take the average value of the output voltage from the pulsating direct current only by filtering the rectified output voltage with the energy storage capacitor, and the average value of the output voltage must be taken by using the energy storage filter inductor at the same time.
Finally, please refer to fig. 4. FIG. 4 is a graph of voltage waveforms on the output voltage side of the power supply circuit of the present invention during operation; graph a) is the rectified output voltage u0A waveform diagram of (a). The solid line shows the waveform of the rectified output voltage of the winding of the secondary coil N3 of the transformer when the square wave control signal I91 works; the dotted line represents the waveform of the square wave control signal II 101 after the output voltage of the winding of the secondary coil N3 of the transformer is rectified. Up represents the rectified output peak voltage (forward output voltage), Up-represents the rectified output minimum voltage (flyback output voltage), and ua represents the average value of the rectified output voltages.
Diagram b) shows the capacitor C1Waveform diagram of the voltage across. Uo denotes the output voltage; Δ Uc represents the capacitor charging voltage delta, 2 Δ Uc being equal to the output voltage ripple. When the square wave control signal I91 works, the voltage U is inputiApplied to both ends of the winding of the transformer coil N1, the winding of the transformer coil N3 outputs a positive voltage u with an amplitude Up (half-wave mean value) during the Ton period when the square wave control signal I91 is on0Then applied to a filter circuit consisting of a filter inductor L and a filter capacitor C, during which the voltage e across the filter inductor LLComprises the following steps:
In the formula: u shapeiFor input voltage, UoIs a direct current output voltage, namely: u shapeoFor the voltage u across the filter capacitorcAverage value of (a).
Integrating the formula (1) to obtain:
Where i (0) is an initial current (t is a current flowing through the inductor L at 0 time), that is: at the working moment of the square wave control signal I91, the current flowing through the inductor L is also called the initial current flowing through the inductor L. From fig. 4, it can be seen that I (0) ═ Ix. When the square wave control signal I91 is suddenly switched from the period Ton to the period Toff, the current i flowing through the inductor LLThe maximum value is reached:
It can also be seen from fig. 4: i ism＝Io+Ix,
Uo＝UaNamely:
output voltage:
the following can be obtained from equations (3) and (4):
Equations (4) and (5) are the Uo expressions for the supply circuit output voltage. In the formula, Uo is output voltage, Ui is input voltage, Up is forward output voltage of a winding of a secondary coil N3 of the transformer, Up-is flyback output voltage of a winding of a secondary coil N3 of the transformer, and N is the turn ratio of a winding of a secondary coil N3 of the switching power supply to a winding of a primary coil N1 or a winding of a primary coil N2.
From the above analysis results, equation (3) can be written as:
Or
Square wave control signal I91 stop working moment (7)
As can be seen from FIG. 4, when the duty cycles of the square wave control signals I91 and II 101 are both 0.5, Up is substantially equal to Up. Since, when the duty ratios of the square wave control signals i 91 and ii 101 are both 0.5, the calculation results of the equations (6) and (7) are 0. Therefore, when the duty ratios of the square wave control signals i 91 and ii 101 are both 0.5, the waveform of the rectified output voltage Uo is substantially pure direct current, no alternating current component exists, the output voltage Uo is equal to the maximum value Up, and energy storage inductance filtering is not needed.
If the output voltage UO is required to be adjustable, the duty ratio of the two square wave control signals I91 and II 101 must be less than 0.5; because the power supply circuit has voltage output in both forward and reverse states, the duty ratio of the two square wave control signals I91 and II 101 is equivalent to one time smaller under the condition of the same output voltage (average value). Therefore, if the adjustable range of the output voltage is required to be maximum, the duty ratio of the two square wave control signals i 91 and ii 101 is preferably 0.25.
When the duty cycle of both square wave control signals i 91 and ii 101 takes 0.25, Upa is 3Upa-, so we can also consider Up equal to 3 Up-. By substituting the above known conditions for the formula (7), the following can be obtained:
Or
D is 0.25 hr (9)
At the same time, the output voltage U can be derivedoComprises the following steps:
Equations (8), (9) and (10) are expressions for calculating the filter inductance and the filter output voltage when D is 0.25. In which Uo is the output voltage, UiFor the input voltage, T is the working period of the two square wave control signals I91 and II 101, F is the working frequency of the two square wave control signals I91 and II 101, D is the duty ratio of the two square wave control signals I91 and II 101, and N is the turn ratio of the winding of the secondary coil N3 to the winding of the primary coil N1 or N2. The intermediate or average values of the filter inductance L and the output voltage Uo are calculated by equations (8), (9) and (10).
By the above formula (10):
when D is 0.25, when the duty ratio of the two square wave control signals I91 and II 101 is 0.25, U is startediUnder the condition of a constant input voltage, the power supply requirement and the function of the storage battery power box can be realized by setting the turn ratio N of the winding of the secondary coil N3 to the winding of the primary coil N1 or N2.
It should be noted that the above summary and the detailed description are intended to demonstrate the practical application of the technical solutions provided by the present invention, and should not be construed as limiting the scope of the present invention. Various modifications, equivalent substitutions, or improvements may be made by those skilled in the art within the spirit and principles of the invention. The scope of the invention is to be determined by the appended claims.
Claims (10)
1. A storage battery charging box is characterized by comprising a TBP0306 storage battery charging module (1), a TBP0307 storage battery charging module (2), a DDZ-01A storage battery charging module (3), a TBP316 storage battery charging module I (4), a TBP316 storage battery charging module II (5), a TBP316 storage battery charging module III (6), a TBP316 storage battery charging module IV (7), a power supply module (8), a square wave control signal module I (9), a square wave control signal module II (10), a selective control switch module (11), a communication module (12), a bearing circuit board (13), a bearing box body (14), a photovoltaic power generation device (15) and a human-computer interaction device (16); the system comprises a TBP0306 storage battery charging module (1), a TBP0307 storage battery charging module (2), a DDZ-01A storage battery charging module (3), a TBP316 storage battery charging module I (4), a TBP316 storage battery charging module II (5), a TBP316 storage battery charging module III (6), a TBP316 storage battery charging module IV (7), a power supply module (8), a square wave control signal module I (9), a square wave control signal module II (10), a selection control switch module (11) and a communication module (12) which are divided into two rows, and all the two rows are modularly and fixedly connected to a bearing circuit board (13); the TBP0306 battery charging module (1), the TBP0307 battery charging module (2), the DDZ-01A battery charging module (3), the TBP316 battery charging module I (4), the TBP316 battery charging module II (5), the TBP316 battery charging module III (6) and the TBP316 battery charging module IV (7) are arranged in parallel in one row; the power supply module (8), the square wave control signal module I (9), the square wave control signal module II (10), the selection control switch module (11) and the communication module (12) are arranged in another row in parallel; the upper half part of the bearing box body (14) is a hollow box body, and the lower half part is a storage chamber; the two bearing circuit boards (13) are fixedly connected to the upper half part of the bearing box body (14); the end I of the photovoltaic power generation device (15) is electrically connected with the power module (8) and used for supplying power; the man-machine interaction device (16) is in signal connection with the communication module (12) and is used for displaying and controlling.
2. The battery charging box according to claim 1, wherein said TBP0306 battery charging module (1) has a power supply standard of 25.2V/1.8A, said TBP0307 battery charging module (2) has a power supply standard of 14.4V/0.4A, and said DDZ-01A battery charging module (3) has a power supply standard of 4.25V/2A.
3. The battery charging box according to claim 1, wherein the TBP316 battery charging module i (4), TBP316 battery charging module ii (5), TBP316 battery charging module iii (6) and TBP316 battery charging module iv (7) are all powered at 14.4V/0.75A.
4. A battery charging box according to claim 1, characterized in that said photovoltaic generator (15) comprises a photovoltaic generator array (151) and a combiner box (152); the photovoltaic power generation array (151) is electrically connected with the end I of the junction box (152) and is used for photovoltaic power generation; and the II end of the confluence box (152) is used as the I end of the photovoltaic power generation device (15) and used for confluence.
5. Battery charging box according to claim 1, characterized in that said human-machine interaction device (16) comprises a fixing post (161) and a LEC control screen (162); wherein, the fixed column (161) is placed on the ground; the LEC control screen (162) is fixedly connected to the fixing column (161); and a histogram electric quantity display and open and close control buttons corresponding to 7 storage battery power supply modules are arranged on the LEC control screen (162).
6. A power supply circuit of a battery charging box according to claim 1, characterized in that the power supply circuit comprises a power source (81), a square wave control signal i (91), a square wave control signal ii (101), a selection control switch (111), a transformer T1(131), a transformer T2(132), a transformer T3(133), a transformer T4(134), a load i side circuit (135), a load ii side circuit (136), a load iii side circuit (137), and a load iv side circuit (138); the negative electrode of the power supply (81) is electrically connected with the end I of the square wave control signal I (91) and the end II of the square wave control signal II (101); the positive electrode of the power supply (81) is electrically connected with the end I of the selection control switch (111); the II end of the square wave control signal I (91) is electrically connected with the I end of the transformer T1(131), the I end of the transformer T2(132), the I end of the transformer T3(133) and the I end of the transformer T4 (134); the I end of the square wave control signal II (101) is electrically connected with the II end of the transformer T1(131), the II end of the transformer T2(132), the II end of the transformer T3(133) and the II end of the transformer T4 (134); the end II of the selection control switch (111) is electrically connected with the end III of the transformer T1 (131); the terminal III of the selection control switch (111) is electrically connected with the terminal III of the transformer T2 (132); the IV end of the selection control switch (111) is electrically connected with the III end of the transformer T3 (133); the V end of the selection control switch (111) is electrically connected with the III end of the transformer T4 (134); the IV end, the V end and the VI end of the transformer T1(131) are electrically connected with the I-side circuit (135) of the load; the IV end, the V end and the VI end of the transformer T2(132) are electrically connected with the load II side circuit (136); the IV end, the V end and the VI end of the transformer T3(133) are electrically connected with the load III side circuit (137); and the IV end, the V end and the VI end of the transformer T4(134) are electrically connected with the load IV side circuit (138).
7. Supply circuit according to claim 6, characterized in that the I-side load circuit (135) comprises a diode D1(1351) Diode D2(1352) Inductor L1(1353) And a capacitor C1(1354) (ii) a Wherein the diode D1(1351) As the 1 terminal of the I side circuit (135) of the load; the diode D2(1352) As the 2 terminal of the I side circuit (135) of the load; the diode D1(1351) And the diode D2(1352) Terminal II, the inductance L1(1353) The ends I are electrically connected; the inductance L1(1353) Terminal II of and the capacitor C1(1354) The end I of the transformer is electrically connected and used as the anode of the end I of the output voltage; the inductor C1(1354) And terminal II and the transformer T1(131) The VI end of the transformer is electrically connected and used as a negative electrode of the I end of the output voltage.
8. The power supply circuit according to claim 6, wherein the load II side circuit (136) and the load III side circuit (137) each have the same circuit configuration as the load I side circuit (135).
9. The power supply circuit of claim 6, wherein said load IV side circuit (138) comprises a diode D7(1381) Diode D8(1382) Inductor L4(1383) And a capacitor C4(1384) (ii) a Wherein the diode D7(1381) As the 1 terminal of the load IV side circuit (138); the diode D8(1382) As the 2 terminal of the load IV side circuit (138); the diode D7(1381) And the diode D8(1382) Terminal II, the inductance L4(1383) The ends I are electrically connected; the inductance L4(1383) Terminal II of and the capacitor C4(1384) The end I is electrically connected and used as the anode of the ends IV, V, VI and VII of the output voltage; the inductor C4(1384) And the terminal II of the transformer T4(134) is electrically connected with the terminal VI and is used as the cathode of the terminals IV, V, VI and VII of the output voltage.
10. Battery charging box according to claim 1 or 6, characterized in that said power source (81) is located in said power module (8); the square wave control signal I (91) is generated by the square wave control signal module I (9); the square wave control signal II (101) is generated by the square wave control signal module II (10); the selection control switch (111) is positioned in the selection control switch module (11) and is in signal connection with the communication module (12); the output voltage I end of the power supply circuit is used as an input power supply of the TBP0306 storage battery charging module (1); the output voltage II end of the power supply circuit is used as an input power supply of the TBP0307 storage battery charging module (2); the output voltage III end of the power supply circuit is used as an input power supply of the DDZ-01A storage battery charging module (3); the output voltage IV end of the power supply circuit is used as an input power supply of the TBP316 storage battery charging module I (4); the output voltage V end of the power supply circuit is used as an input power supply of the TBP316 storage battery charging module II (5); the VI end of the output voltage of the power supply circuit is used as an input power supply of the TBP316 storage battery charging module III (6); and the VII end of the output voltage of the power supply circuit is used as an input power supply of the TBP316 storage battery charging module IV (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911335935.4A CN110970976A (en) | 2019-12-23 | 2019-12-23 | Storage battery charging box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911335935.4A CN110970976A (en) | 2019-12-23 | 2019-12-23 | Storage battery charging box |
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| CN110970976A true CN110970976A (en) | 2020-04-07 |
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| CN207612074U (en) * | 2017-04-01 | 2018-07-13 | 浙江科技学院 | A kind of charging pile control system with identification function of taking pictures |
| CN208986841U (en) * | 2018-09-28 | 2019-06-14 | 汉能移动能源控股集团有限公司 | A kind of power supply circuit and clarifier |
| CN209250268U (en) * | 2018-09-30 | 2019-08-13 | 广东电网有限责任公司 | Battery charge controller applied to unmanned plane |
| CN209282897U (en) * | 2019-03-02 | 2019-08-20 | 四川无限电科技有限公司 | A kind of mobile phone is with carrying charging unit |
| CN211556896U (en) * | 2019-12-23 | 2020-09-22 | 辽宁科技大学 | Novel storage battery charging box |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207612074U (en) * | 2017-04-01 | 2018-07-13 | 浙江科技学院 | A kind of charging pile control system with identification function of taking pictures |
| CN208986841U (en) * | 2018-09-28 | 2019-06-14 | 汉能移动能源控股集团有限公司 | A kind of power supply circuit and clarifier |
| CN209250268U (en) * | 2018-09-30 | 2019-08-13 | 广东电网有限责任公司 | Battery charge controller applied to unmanned plane |
| CN209282897U (en) * | 2019-03-02 | 2019-08-20 | 四川无限电科技有限公司 | A kind of mobile phone is with carrying charging unit |
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