CN111509794B - Charge-discharge management system with load power supply - Google Patents

Charge-discharge management system with load power supply Download PDF

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Publication number
CN111509794B
CN111509794B CN202010199324.8A CN202010199324A CN111509794B CN 111509794 B CN111509794 B CN 111509794B CN 202010199324 A CN202010199324 A CN 202010199324A CN 111509794 B CN111509794 B CN 111509794B
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China
Prior art keywords
switch
circuit
storage battery
triode
power supply
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CN202010199324.8A
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Chinese (zh)
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CN111509794A (en
Inventor
杨鸿珍
赵玉虎
金烂聚
吴秋晗
范超
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Hangzhou Dianzi University
Information and Telecommunication Branch of State Grid Zhejiang Electric Power Co Ltd
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Hangzhou Dianzi University
Information and Telecommunication Branch of State Grid Zhejiang Electric Power Co Ltd
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Priority to CN202010199324.8A priority Critical patent/CN111509794B/en
Priority to JP2020101610A priority patent/JP7057924B2/en
Publication of CN111509794A publication Critical patent/CN111509794A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007Regulation of charging or discharging current or voltage
    • H02J7/00712Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00302Overcharge protection
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007Regulation of charging or discharging current or voltage
    • H02J7/00712Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • H02J7/007186Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage obtained with the battery disconnected from the charge or discharge circuit

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a charge-discharge management system with a load power supply, wherein a logic module comprises an exchange circuit and a switch circuit, the exchange circuit is connected between two storage batteries to exchange power supply, the switch circuit is connected between the storage batteries and a mains supply line, the switch circuit comprises a switch ZY2 connected between the storage batteries and the mains supply line, a follow current circuit connected in parallel at two ends of a switch ZY2 and a bypass switch JP2 connected in parallel at two ends of a switch ZY 2; the freewheeling circuit comprises a diode D2 and a controllable switch P2, the anode of the diode D2 is connected with one end of the switch ZY2 opposite to the commercial power line, and the two ends of the controllable switch P2 are respectively connected with one end of the switch ZY2 opposite to the storage battery and the cathode of the diode D2; and a logic control circuit is also connected between the control end of the controllable switch P2 and the storage battery, and when the storage battery reaches the upper limit of the charging capacity, the logic control circuit controls the controllable switch P2 to be closed. The charging and discharging circuit can avoid the condition that the storage battery is in an undervoltage state due to insufficient charging.

Description

Charge-discharge management system with load power supply
Technical Field
The invention relates to the technical field of power supply management, in particular to a charging and discharging management system of a loaded power supply.
Background
The existing power management is generally to perform remote charging and discharging management in a charging and discharging management system built by storage battery remote maintenance equipment. The existing charge-discharge circuit is often not fully charged during charging to cause undervoltage; further, the electric energy stored in the charged storage battery cannot meet the standard, for example, the scheme in the charging and discharging line described in application No. CN 2018111946744.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a charging and discharging management system for a loaded power supply, wherein a charging and discharging circuit can avoid the condition that a storage battery is in an undervoltage state due to insufficient charging.
In order to achieve the purpose, the invention provides the following technical scheme: a charging and discharging management system for a loaded power supply comprises a remote control platform and a power supply management terminal in communication connection with the remote control platform, wherein the power supply management terminal comprises a cabinet, logic modules, a storage battery and a discharging module, the logic modules are arranged in the cabinet, the control platform is in communication connection with the logic modules, the storage battery is electrically connected with the discharging module through the logic modules, the logic modules comprise an exchange circuit and a switch circuit, the exchange circuit is connected between the two storage batteries to exchange power supply, the switch circuit is connected between the storage battery and a mains supply line, and comprises a switch ZY2 connected between the storage battery and the mains supply line, a follow current circuit connected to two ends of a switch ZY2 in parallel and a bypass switch JP2 connected to two ends of a switch ZY2 in parallel; the freewheeling circuit comprises a diode D2 and a controllable switch P2, the anode of the diode D2 is connected to one end of the switch ZY2 opposite to the mains supply line, and two ends of the controllable switch P2 are respectively connected to one end of the switch ZY2 opposite to the storage battery and the cathode of the diode D2; and a logic control circuit is also connected between the control end of the controllable switch P2 and the storage battery, and when the storage battery reaches the upper limit of the charging capacity, the logic control circuit controls the controllable switch P2 to be closed.
As a further improvement, the logic control circuit comprises a storage battery capacity sampling circuit, a comparison module and a time relay; the time relay is connected between the comparison module and the control end of the controllable switch P2, and the storage battery capacity sampling circuit is electrically connected with the comparison module; and when the voltage of the storage battery, which is received by the comparison module and acquired by the storage battery capacity sampling circuit, reaches the upper limit of the charging capacity, controlling the time collector to time.
As a further improvement, the comparison module comprises a primary comparison circuit, a secondary comparison circuit, a capacitor bank, a primary triode and a secondary triode; the input ends of the primary comparison circuit and the secondary comparison circuit are connected to the storage battery capacity sampling circuit to obtain sampling voltage; the output end of the primary comparison circuit is connected to the base electrode of a primary triode, the collector electrode of the primary triode is connected to the sampling circuit to obtain a sampling voltage as a power supply, and the emitter electrode of the primary triode is connected to the capacitor bank to provide power supply charging; the collector electrode of the secondary triode is connected to the capacitor bank to obtain the electric power storage power supply of the capacitor bank, the output end of the secondary comparison circuit is connected to the base electrode of the secondary triode, the emitter electrode of the secondary triode is connected to the control end of the time relay, and when the secondary triode sends a jump level to the time relay, the time relay starts timing.
As a further improvement, the bypass switch JP2 is a knife fuse.
As a further improvement, the bypass switch JP2 includes a fixed shell provided with an assembling groove, and an assembling shell matched with the assembling groove; the fixed shell is provided with wiring terminals which are respectively used for connecting two ends of a switch ZY2, the assembly shell can be assembled in the assembly groove in a turnover mode, and when the assembly shell is turned to the assembly groove in place, a fuse on the assembly shell is connected with the wiring terminals so as to be communicated with two ends of a switch ZY2 through the fuse.
As a further improvement, a placing groove for placing a fuse is formed in one upward side of the assembling shell, a spring is arranged at the bottom of the placing groove, and when the fuse is vertically placed in the placing groove, one end of the fuse is abutted against the spring; when the assembly shell overturns towards the assembly groove, one end of the fuse, which is back to the spring, is abutted against the groove wall of the assembly groove and is extruded by the groove wall, and when the assembly shell overturns in place, two ends of the fuse are respectively connected with the corresponding connecting terminals.
As a further improvement, the side surface of the assembling shell, which is provided with the assembling groove, is provided with a window for connecting the wiring terminal, and when the assembling shell is turned in place, one end of the fuse, which is opposite to the spring, is connected with the wiring terminal through the window.
The invention has the advantages that the current charging and discharging circuit keeps the passage for a long time due to the freewheeling diode when charging, and the charging module supplies power to the load on the communication power supply due to the rise of the uniform charging voltage, so that the charging module is overloaded, even the diode is overloaded and burnt. In the prior art, when the charging module is charged uniformly and the voltage of the communication power supply is consistent, the switch ZY2 is turned on, and the charging module quits working at the moment, so that the storage battery cannot be fully charged, and the charging effect is poor. This scheme can link the voltage of battery and controllable switch P2, through setting up logic control circuit, utilizes logic control circuit to obtain the voltage of battery to control controllable switch P2 and open and close, before the battery did not fill up, controllable switch P2 was in the off-state, when the battery was full of, controllable switch P2 was closed, can not lead to the battery to be full of because of diode D2 long-term route this moment. And the two storage batteries and the two power supply output lines are connected through the exchange circuit, so that the power supply output by the two power supply output lines is more stable. Wherein the switch ZY2 is used for discharging and charging the accumulator as a main switch. The bypass switch JP2 is a standby switch, when the switch ZY2, the diode D2 and the controllable switch P2 are damaged, whether the power supply of the storage battery is available or not can be controlled by manually opening and closing the bypass switch JP2, and the power supply can be continuously carried out in the maintenance process of the switch ZY2, the diode D2 and the controllable switch P2.
Drawings
FIG. 1 is a schematic diagram of a logic module circuit structure according to the present invention
FIG. 2 is a perspective view of one embodiment of a bypass switch JP2 according to the present invention;
fig. 3 is a schematic structural cross-sectional view of one embodiment of a bypass switch JP2 of the present invention.
Reference numerals: 1. a switching circuit; 2. a switching circuit; 3. a logic control circuit; 4. a battery capacity sampling circuit; 5. a comparison module; 6. a time relay; 7. a primary comparison circuit; 8. a secondary comparison circuit; 9. a capacitor bank; 10. a primary triode; 11. a secondary triode; 12. a stationary case; 13. assembling a groove; 14. assembling the shell; 15. a wiring terminal; 16. a fuse; 17. a placement groove; 18. a spring; 19. and (4) a window.
Detailed Description
The invention will be further described in detail with reference to the following examples, which are given in the accompanying drawings.
Referring to fig. 1-3, a load power supply charge and discharge management system of this embodiment includes a remote control platform, and a power management terminal in communication connection with the remote control platform, where the power management terminal includes a cabinet, logic modules all disposed in the cabinet, a power storage bank, and a discharge module, the control platform is in communication connection with the logic modules, and the power storage bank is electrically connected to the discharge module through the logic modules, and is characterized in that the logic modules include a switch circuit 1 and a switch circuit 2, the switch circuit 1 is connected between two storage batteries to exchange power, the switch circuit 2 is connected between the storage batteries and a mains supply line, and the switch circuit 2 includes a switch ZY2 connected between the storage batteries and the mains supply line, a freewheeling circuit connected in parallel at two ends of the switch ZY2, and a bypass switch JP2 connected in parallel at two ends of the switch ZY 2. The logic control circuit 3 comprises a storage battery capacity sampling circuit 4, a comparison module 5 and a time relay 6; the time relay 6 is connected between the comparison module 5 and the control end of the controllable switch P2, and the storage battery capacity sampling circuit 4 is electrically connected with the comparison module 5; and when the voltage of the storage battery, which is received by the comparison module 5 and collected by the storage battery capacity sampling circuit 4, reaches the upper limit of the charging capacity, controlling a time collector to time.
The current charging and discharging circuit is charged because the freewheeling diode keeps the passage for a long time, and the charging can lead to the storage battery not being fully charged at the moment, and the charging effect is poor. This scheme can link the voltage of battery and controllable switch P2, through setting up logic control circuit 3, utilize logic control circuit 3 to obtain the voltage of battery to control controllable switch P2 and open and close, before the battery did not fill up, controllable switch P2 was in the off-state, when the battery was full of, controllable switch P2 was closed, can not lead to the battery to be full of and be in the undervoltage state because diode D2 long-term route this moment. And the two storage batteries and the two power supply output lines are connected through the switching circuit 1, so that the power supply output by the two power supply output lines can be more stable, and the switching circuit is specifically shown in fig. 1. Wherein the switch ZY2 is used for discharging and charging the accumulator as a main switch. The bypass switch JP2 is a standby switch, when the switch ZY2, the diode D2 and the controllable switch P2 are damaged, whether the power supply of the storage battery is available or not can be controlled by manually opening and closing the bypass switch JP2, and the power supply can be continuously carried out in the maintenance process of the switch ZY2, the diode D2 and the controllable switch P2.
The switching circuit 1 is a circuit formed BY a switch BY2, a diode D4, a switch BY1 and a diode D3 in fig. 1.
In addition, the logic control circuit 3 comprises a storage battery capacity sampling circuit 4, a comparison module 5 and a time relay 6; the time relay 6 is connected between the comparison module 5 and the control end of the controllable switch P2, and the storage battery capacity sampling circuit 4 is electrically connected with the comparison module 5; and when the voltage of the storage battery, which is received by the comparison module 5 and collected by the storage battery capacity sampling circuit 4, reaches the upper limit of the charging capacity, controlling a time collector to time.
In the prior art, a controller is generally adopted to control the switch ZY2, and the control mode needs to be independently accessed into a controller module, so that certain cost is caused. This application builds through the circuit that basic discrete component constitutes, and its cost reduces greatly. In the specific process, the current capacity of the storage battery is sampled by the storage battery capacity sampling circuit 4 and is sent to the comparison module 5, after comparison by the comparison module 5, if the current storage battery of the storage battery meets the requirement, a signal is output to the time relay 6, and the electrifying stability is ensured in a time delay mode through the time relay 6.
In a further configuration, the comparing module 5 includes a primary comparing circuit 7, a secondary comparing circuit 8, a capacitor bank 9, a primary triode 10 and a secondary triode 11; the input ends of the primary comparison circuit 7 and the secondary comparison circuit 8 are connected to the storage battery capacity sampling circuit 4 to obtain sampling voltage; the output end of the primary comparison circuit 7 is connected to the base electrode of a primary triode 10, the collector electrode of the primary triode 10 is connected to a sampling circuit to obtain a sampling voltage as a power supply, and the emitter electrode of the primary triode 10 is connected to a capacitor bank 9 to provide power supply charging; the collector of the secondary triode 11 is connected to the capacitor bank 9 to obtain the stored power of the capacitor bank 9, the output end of the secondary comparison circuit 8 is connected to the base of the secondary triode 11, the emitter of the secondary triode 11 is connected to the control end of the time relay 6, and when the secondary triode 11 sends a jump level to the time relay 6, the time relay 6 starts timing.
After the storage battery capacity sampling circuit 4 samples and obtains the electric energy currently stored by the storage battery, the electric energy is transmitted to the primary comparison circuit 7 and the secondary comparison circuit 8 at the same time, in the process of charging the storage battery, the real-time electric energy does not reach the standard, at the moment, the secondary comparison circuit 8 outputs a signal for controlling the disconnection of the secondary triode 11, the primary comparison circuit 7 outputs a signal for controlling the conduction of the primary triode 10, after the primary triode 10 is conducted, the electric energy obtained by sampling of the storage battery capacity sampling circuit 4 is transmitted to the capacitor bank 9 through the primary triode 10, the capacitor bank 9 can be formed by connecting a plurality of capacitors in parallel, when the storage battery is fully charged, the primary voltage comparison circuit outputs a signal for controlling the disconnection of the primary triode 10, the secondary voltage comparison circuit outputs a signal for controlling the conduction of the secondary triode 11, at the moment, the secondary triode 11 is conducted, and the capacitor bank 9 is discharged to the time relay 6 through the secondary triode 11, and then control time relay 6 timing, the mode that adopts electric capacity group 9 to discharge and control time relay 6 timing compares the signal after direct comparison through voltage comparison circuit feedback for time relay 6, has more stable discharge process, avoid the phenomenon that the fortune among the comparison circuit is put and is produced critical jitter, and electric capacity group 9 can exhaust the electric energy after discharging a period, will the automatic shutdown output signal give time relay 6 this moment, have the stable effect of time delay, the timing of cooperation time relay 6 switches on, have more stable power-on effect.
As a preferred embodiment, the bypass switch JP2 is a knife fuse.
The bypass switch JP2 is set as a knife switch fuse, at the moment, the bypass switch JP2 can be used as a switch and a fuse, when the switch ZY2, the diode D2 and the controllable switch P2 are maintained, the bypass switch JP2 can be switched on firstly to be used as temporary power supply, and the switch ZY2, the diode D2 and the controllable switch P2 can be damaged due to the fact that whether the short circuit occurs or not in the power supply process, when the fuse is fused, the bypass switch JP2 can be automatically switched off, so that the safety of a circuit is improved, the scheme is suitable for temporary power supply in emergency, if the switch ZY2, the diode D2 and the controllable switch P2 are damaged and need to be switched on when the bypass switch JP2 is switched on, the circuit is detected and then is switched on, a large amount of time is needed at the moment, so that the power supply cannot be continued in time; according to the scheme, detection is not needed, the bypass switch JP2 is directly switched on, if the circuit has a problem, the fuse can be fused, the circuit is directly cut off, and then the circuit detection is carried out, so that the method and the device can be suitable for the emergency power supply condition.
As another preferred embodiment, the bypass switch JP2 includes a fixed shell 12 having a mounting groove 13, a mounting shell 14 adapted to the mounting groove 13; the fixed shell 12 is provided with connecting terminals 15 for connecting two ends of the switch ZY2, the assembling shell 14 is assembled in the assembling groove 13 in a turnover mode, and when the assembling shell 14 is turned to the position in the assembling groove 13, the fuse 16 on the assembling shell 14 is connected with the connecting terminals 15 to communicate two ends of the switch ZY2 through the fuse 16.
As shown in fig. 2 and 3, by disposing the stationary case 12 in the cabinet and connecting both ends of the switch ZY2 through the connection terminal 15, the switching of the fuse 16 can be switched quickly by the turning of the fitting case 14. The structure can replace a disconnecting link fuse and also has the technical effect realized by the disconnecting link fuse.
Furthermore, a placing groove 17 for placing the fuse 16 is formed in the upward side of the assembling shell 14, a spring 18 is arranged at the bottom of the placing groove 17, and when the fuse 16 is vertically placed in the placing groove 17, one end of the fuse 16 is abutted against the spring 18; when the assembling shell 14 is turned to the assembling groove 13, one end of the fuse 16, which is back to the spring 18, is abutted against the groove wall of the assembling groove 13 and is pressed by the groove wall, and when the assembling shell 14 is turned to the right position, two ends of the fuse 16 are respectively connected with the corresponding connecting terminals 15.
When the user replaces the fuse 16, the user can directly insert a new fuse 16 into the placing groove 17, and then the assembling shell 14 is turned over towards the fixing shell 12, so that the new fuse enters the placing groove 17, the fuse 16 in the placing groove 17 can be connected with the wiring terminal 15, the fuse 16 can be pressed by the elastic force of the arranged spring 18 on the fuse 16 and the reaction force of the assembling groove 13 on the fuse 16, and the fuse 16 is more stable in the process of turning over the assembling shell 14.
As a modification, the side surface of the assembly housing 14, which is provided with the assembly groove 13, is provided with a window 19 for connecting the terminal 15, and when the assembly housing 14 is turned over in place, one end of the fuse 16 opposite to the spring 18 is connected with the terminal 15 through the window 19.
By forming the window 19, the terminal 15 can be more conveniently connected to the contact of the fuse 16, and the assembly is faster and more convenient.
The scope of protection is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the scope of protection of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (5)

1. A load power supply charging and discharging management system comprises a remote control platform and a power supply management terminal in communication connection with the remote control platform, wherein the power supply management terminal comprises a cabinet, a logic module, a storage battery and a discharging module which are all arranged in the cabinet, the control platform is in communication connection with the logic module, and the storage battery is electrically connected with the discharging module through the logic module; the freewheeling circuit comprises a diode D2 and a controllable switch P2, the anode of the diode D2 is connected to one end of the switch ZY2 opposite to the mains supply line, and two ends of the controllable switch P2 are respectively connected to one end of the switch ZY2 opposite to the storage battery and the cathode of the diode D2; a logic control circuit (3) is also connected between the control end of the controllable switch P2 and the storage battery, and when the storage battery reaches the upper limit of the charging capacity, the logic control circuit (3) is used for controlling the controllable switch P2 to be closed;
the logic control circuit (3) comprises a storage battery capacity sampling circuit (4), a comparison module (5) and a time relay (6); the time relay (6) is connected between the comparison module (5) and the control end of the controllable switch P2, and the storage battery capacity sampling circuit (4) is electrically connected with the comparison module (5); when the voltage of the storage battery, which is received by the comparison module (5) and collected by the storage battery capacity sampling circuit (4), reaches the upper limit of the charging capacity, the time relay (6) is controlled to time;
the comparison module (5) comprises a primary comparison circuit (7), a secondary comparison circuit (8), a capacitor bank (9), a primary triode (10) and a secondary triode (11); the input ends of the primary comparison circuit (7) and the secondary comparison circuit (8) are connected to the storage battery capacity sampling circuit (4) to obtain a sampling voltage; the output end of the primary comparison circuit (7) is connected to the base electrode of a primary triode (10), the collector electrode of the primary triode (10) is connected to a sampling circuit to obtain a sampling voltage as a power supply, and the emitter electrode of the primary triode (10) is connected to a capacitor bank (9) to provide power supply charging; the collector of the secondary triode (11) is connected to the capacitor bank (9) to obtain the stored power of the capacitor bank (9), the output end of the secondary comparison circuit (8) is connected to the base of the secondary triode (11), the emitter of the secondary triode (11) is connected to the control end of the time relay (6), and when the secondary triode (11) sends a jump level to the time relay (6), the time relay (6) starts to time;
in the charging process of the storage battery, real-time electric energy does not reach the standard, at the moment, a secondary comparison circuit (8) outputs a signal for controlling a secondary triode (11) to be disconnected, a primary comparison circuit (7) outputs a signal for controlling a primary triode (10) to be conducted, and after the primary triode (10) is conducted, a storage battery capacity sampling circuit (4) samples to obtain electric energy and transmits the electric energy to a capacitor bank (9) through the primary triode (10); when the storage battery is fully charged, the primary comparison circuit (7) outputs a signal for controlling the primary triode (10) to be disconnected, the secondary comparison circuit (8) outputs a signal for controlling the secondary triode (11) to be conducted, the secondary triode (11) is conducted at the moment, the capacitor bank (9) discharges through the secondary triode (11) to the time relay (6), and then the time relay (6) is controlled to time.
2. The system for managing charging and discharging of a loaded power supply according to claim 1, wherein said bypass switch JP2 is a knife fuse.
3. The charging and discharging management system of the loaded power supply according to claim 1, wherein the bypass switch JP2 comprises a fixed shell (12) provided with a mounting groove (13), and a mounting shell (14) matched with the mounting groove (13); the fixed shell (12) is provided with wiring terminals (15) which are respectively used for connecting two ends of a switch ZY2, the assembly shell (14) can be assembled in the assembly groove (13) in a turnover mode, when the assembly shell (14) is turned to the assembly groove (13) in place, a fuse (16) on the assembly shell (14) is connected with the wiring terminals (15) so as to be communicated with two ends of a switch ZY2 through the fuse (16).
4. The charging and discharging management system for the loaded power supply is characterized in that a placing groove (17) for placing the fuse (16) is formed in the upward side of the assembling shell (14), a spring (18) is arranged at the bottom of the placing groove (17), and when the fuse (16) is vertically placed in the placing groove (17), one end of the fuse (16) is abutted against the spring (18); when the assembling shell (14) is turned towards the assembling groove (13), one end of the fuse (16), which is back to the spring (18), is abutted against the groove wall of the assembling groove (13) and is extruded by the groove wall, and when the assembling shell (14) is turned in place, two ends of the fuse (16) are respectively connected with the corresponding connecting terminals (15).
5. The charging and discharging management system for the loaded power supply is characterized in that the side surface, provided with the assembling groove (13), of the assembling shell (14) is provided with a window (19) for connecting the wiring terminal (15), and when the assembling shell (14) is turned to the right position, one end, opposite to the spring (18), of the fuse (16) is connected with the wiring terminal (15) through the window (19).
CN202010199324.8A 2020-03-19 2020-03-19 Charge-discharge management system with load power supply Active CN111509794B (en)

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JP2020101610A JP7057924B2 (en) 2020-03-19 2020-06-11 Charge / discharge management system with load power supply

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CN110021506B (en) * 2019-05-19 2020-12-01 江苏永顺电气设备有限公司 Fuse type circuit switch controller

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