CN114726061A - Control system for lithium battery power management - Google Patents
Control system for lithium battery power management Download PDFInfo
- Publication number
- CN114726061A CN114726061A CN202210614548.XA CN202210614548A CN114726061A CN 114726061 A CN114726061 A CN 114726061A CN 202210614548 A CN202210614548 A CN 202210614548A CN 114726061 A CN114726061 A CN 114726061A
- Authority
- CN
- China
- Prior art keywords
- module
- battery
- voltage
- resistor
- diode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00308—Overvoltage protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Protection Of Static Devices (AREA)
Abstract
The invention discloses a control system for lithium battery power management, which relates to the field of lithium battery control and comprises the following components: the voltage input module is used for externally connecting voltage and supplying power to the battery power supply module and the delay module; the battery power supply module is used for charging the battery; receiving battery voltage information, and regulating the voltage output to the battery according to the battery voltage; a battery module for storing electrical energy; compared with the prior art, the invention has the beneficial effects that: according to the invention, the output voltage of the battery power supply module is adjusted through the feedback module, the output voltage of the battery power supply module is larger at the beginning, and the charging voltage is reduced along with the increase of the battery voltage, so that a quick charging effect is established; whether the battery charging is abnormal or not is detected through the time delay module and the charging fault detection module, and the battery power supply module is adjusted to be charged at a constant voltage when the charging is abnormal, so that the charging effect of the battery is ensured.
Description
Technical Field
The invention relates to the field of lithium battery control, in particular to a control system for lithium battery power supply management.
Background
Lithium batteries are a type of battery using a non-aqueous electrolyte solution using lithium metal or a lithium alloy as a positive/negative electrode material, and are used to store electric energy.
The lithium battery charging and discharging control system on the market at present lacks battery charging circuit exception handling circuit for when charging circuit trouble, often the battery is not fully charged, and the user easily thinks the battery trouble, causes wrong cognition, needs the improvement.
Disclosure of Invention
The present invention is directed to a control system for lithium battery power management to solve the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a control system for lithium battery power management, comprising:
the voltage input module is used for externally connecting voltage and supplying power to the battery power supply module and the delay module;
the battery power supply module is used for charging the battery; receiving battery voltage information, and regulating the voltage output to the battery according to the battery voltage;
a battery module for storing electrical energy by a battery;
the overvoltage leakage module is used for leaking out the ground when the voltage of the battery exceeds an upper limit threshold;
the over-discharge disconnection module is used for disconnecting the battery power supply circuit when the battery voltage is lower than a lower limit threshold value;
the feedback module is used for feeding back the voltage information of the battery and outputting the voltage information to the battery power supply module;
the time delay module is used for controlling the charging fault detection module to work in a time delay mode after the voltage input module supplies power;
the charging fault detection module is used for detecting the voltage information of the battery and controlling the battery power supply module to supply power at a constant voltage when detecting that the voltage of the battery is abnormal;
the output end of the voltage input module is connected with the first input end of the battery power supply module, the input end of the delay module, the output end of the battery power supply module is connected with the input end of the battery module, the output end of the battery module is connected with the input end of the overvoltage discharge module, the input end of the overdischarge disconnection module, the input end of the feedback module, the first input end of the charging fault detection module, the output end of the feedback module is connected with the second input end of the battery power supply module, the output end of the delay module is connected with the second input end of the charging fault detection module, and the output end of the charging fault detection module is connected with the third input end of the battery power supply module.
As a still further scheme of the invention: the battery power supply module comprises a voltage stabilizer, a first resistor, a second resistor, a third resistor, a first triode, silicon controlled rectifier, a first diode, first resistor is connected to the input of voltage stabilizer, the output of voltage input module, the base of first triode is connected to the other end of first resistor, the output of feedback module, the earthing terminal of voltage stabilizer is connected to the collecting electrode of first triode, a third resistor, the positive pole of silicon controlled rectifier, second resistor is connected to the projecting pole of first triode, the other end ground connection of second resistor, the negative pole of first diode is connected to the negative pole of silicon controlled rectifier, the positive ground connection of first diode, the output of charging fault detection module is connected to the control pole of silicon controlled rectifier, the other end of third resistor is connected to the output of voltage stabilizer, the input of battery module.
As a still further scheme of the invention: the overvoltage discharging module comprises a second MOS tube, a fourth diode, a fifth diode and a fifth resistor, the D pole of the second MOS tube is connected with the output end of the battery module and the anode of the fourth diode, the cathode of the fourth diode is connected with the cathode of the fifth diode, the anode of the fifth diode is connected with the G pole of the second MOS tube and the fifth resistor, the other end of the fifth resistor is grounded, and the S pole of the second MOS tube is grounded.
As a still further scheme of the invention: the over-discharge disconnection module comprises a sixth diode, a sixth resistor, a seventh resistor, a third MOS tube and a fourth MOS tube, wherein the cathode of the sixth diode is connected with the output end of the battery module, the seventh resistor and the S pole of the fourth MOS tube, the other end of the seventh resistor is connected with the G pole of the fourth MOS tube and the D pole of the third MOS tube, the S pole of the third MOS tube is grounded, the G pole of the third MOS tube is connected with the anode of the sixth diode and the sixth resistor, and the other end of the sixth resistor is grounded.
As a still further scheme of the invention: the feedback module comprises a fourth resistor, a first potentiometer, a first capacitor and a controllable precise voltage-stabilizing source, one end of the fourth resistor is connected with the output end of the battery module, the other end of the fourth resistor is connected with the first potentiometer, the other end of the first potentiometer is grounded, the sliding end of the first potentiometer is connected with the control electrode of the first capacitor and the controllable precise voltage-stabilizing source, the other end of the first capacitor is grounded, the anode of the controllable precise voltage-stabilizing source is grounded, and the cathode of the controllable precise voltage-stabilizing source is connected with the second input end of the battery power supply module.
As a still further scheme of the invention: the time delay module comprises an eighth resistor, a ninth resistor, a second potentiometer, a second capacitor and a fifth triode, one end of the eighth resistor is connected with the ninth resistor and the output end of the voltage input module, the other end of the eighth resistor is connected with the second potentiometer, the other end of the second potentiometer is connected with the second capacitor and the base electrode of the fifth triode, the other end of the second capacitor is grounded, the collector electrode of the fifth triode is connected with the other end of the ninth resistor, and the emitter electrode of the fifth triode is connected with the second input end of the charging fault detection module.
As a still further scheme of the invention: the charging fault detection module comprises a sixth MOS tube, a seventh diode, a tenth resistor, a phase inverter and an eighth diode, the D pole of the sixth MOS tube is connected with the output end of the battery module, the G pole of the sixth MOS tube is connected with the output end of the delay module, the S pole of the sixth MOS tube is connected with the negative pole of the seventh diode, the positive pole of the seventh diode is connected with the input end of the phase inverter and the tenth resistor, the other end of the tenth resistor is grounded, the output end of the phase inverter is connected with the positive pole of the eighth diode, and the negative pole of the eighth diode is connected with the third input end of the battery power supply module.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the output voltage of the battery power supply module is regulated through the feedback module, the output voltage of the battery power supply module is larger at the beginning, and the charging voltage is reduced along with the increase of the battery voltage, so that a quick charging effect is established; whether battery charging is abnormal or not is detected through the time delay module and the charging fault detection module, and the battery power supply module is adjusted to be charged at constant voltage when charging is abnormal, so that the charging effect of the battery is guaranteed.
Drawings
Fig. 1 is a schematic diagram of a control system for lithium battery power management.
Fig. 2 is a circuit diagram of a control system for lithium battery power management.
Fig. 3 is a circuit diagram of the delay module and the charging failure detection module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person skilled in the art without making creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1, a control system for lithium battery power management includes:
the voltage input module 1 is used for externally connecting voltage and supplying power to the battery power supply module 2 and the delay module 7;
the battery power supply module 2 is used for charging the battery; receiving battery voltage information, and regulating the voltage output to the battery according to the battery voltage;
a battery module 3 for storing electric energy by a battery;
the overvoltage leakage module 4 is used for leaking out the ground when the battery voltage exceeds an upper limit threshold;
the over-discharge disconnection module 5 is used for disconnecting the battery power supply circuit when the battery voltage is lower than a lower limit threshold;
the feedback module 6 is used for feeding back the battery voltage information and outputting the battery voltage information to the battery power supply module 2;
the delay module 7 is used for controlling the charging fault detection module 8 to work in a delayed mode after the voltage input module 1 supplies power;
the charging fault detection module 8 is used for detecting the battery voltage information and controlling the battery power supply module 2 to supply power at a constant voltage when detecting that the battery voltage is abnormal;
the output end of the voltage input module 1 is connected with the first input end of the battery power supply module 2, the input end of the delay module 7, the output end of the battery power supply module 2 is connected with the input end of the battery module 3, the output end of the battery module 3 is connected with the input end of the overvoltage leakage module 4, the input end of the overdischarge disconnection module 5, the input end of the feedback module 6, the first input end of the charging fault detection module 8, the output end of the feedback module 6 is connected with the second input end of the battery power supply module 2, the output end of the delay module 7 is connected with the second input end of the charging fault detection module 8, and the output end of the charging fault detection module 8 is connected with the third input end of the battery power supply module 2.
In a specific embodiment: referring to fig. 2, the voltage input module 1 supplies a direct current, the voltage of the direct current is introduced into an alternating current through a plug, and the low-voltage direct current is obtained through voltage reduction, rectification, filtering and other measures and is supplied to the battery power supply module 2 and the delay module 7. The battery module 3 comprises a second diode D2, a third diode D3 and a battery E1, wherein the anode of the second diode D2 is connected to the output end of the battery power supply module, the cathode of the second diode D2 is connected to the anode of the third diode D3, and the cathode of the third diode D3 is connected to the anode of the battery E1. The second diode D2 is a light emitting diode indicating whether the battery E1 is charging.
In this embodiment: referring to fig. 2, the battery power supply module 2 includes a voltage regulator U1, a first resistor R1, a second resistor R2, a third resistor R3, a first triode V1, a thyristor K1, and a first diode D1, an input terminal of the voltage regulator U1 is connected to the first resistor R1 and an output terminal of the voltage input module 1, another terminal of the first resistor R1 is connected to a base of the first triode V1 and an output terminal of the feedback module 6, a collector of the first triode V1 is connected to a ground terminal of the voltage regulator U1, a positive terminal of the third resistor R3 and a thyristor K1, an emitter of the first triode V1 is connected to the second resistor R2, another terminal of the second resistor R2 is grounded, the negative pole of the controllable silicon K1 is connected with the negative pole of the first diode D1, the positive pole of the first diode D1 is grounded, the control electrode of the controlled silicon K1 is connected with the output end of the charging fault detection module 8, and the output end of the voltage stabilizer U1 is connected with the other end of the third resistor R3 and the input end of the battery module 3.
The input voltage VIN supplies power to the base of the first triode V1 through the first resistor R1, the first triode V1 is turned on, the ground terminal of the voltage stabilizer U1 is grounded through the first triode V1 and the second resistor R2, and the voltage stabilizer U1 outputs direct current to supply power to the battery E1.
The voltage stabilizer U1 has a feedback regulation power supply mode and a constant voltage power supply mode, the base voltage of the first triode V1 in the feedback regulation power supply mode receives the battery voltage VCC1 after sampling processing by the feedback module 6, after the battery voltage VCC1 rises, the base voltage of the first triode V1 is reduced, the current flowing through the second resistor R2 is reduced, the voltage of the second resistor R2 is reduced, and further the output voltage of the voltage stabilizer U1 is reduced, so that the output voltage of the voltage stabilizer U1 is reduced along with the increase of the battery voltage VCC1, and the quick charging of initial grounding of charging is ensured.
In the constant voltage power supply mode, because feedback module 6 trouble or first triode V1 department trouble, it is lower to lead to charging fault detection module 8 to detect battery voltage VCC1 (compare in the initial time quick charge of normal feedback regulation power supply mode), and then charging fault detection module 8 control silicon controlled rectifier K1 switches on, make first diode D1 (zener diode) access circuit, make have the constant voltage between stabiliser U1's earthing terminal and the ground, make stabiliser U1 constant voltage output, guarantee battery E1 charging quality.
In another embodiment: the second resistor R2 can be replaced by a potentiometer, and in the feedback module 6 of the present invention, the potentiometer is used to adjust the voltage output to the first transistor V1, so as to complete the output voltage regulation of the voltage regulator U1, and therefore, the resistor can be used to meet the requirement.
In this embodiment: referring to fig. 2, the overvoltage discharging module 4 includes a second MOS transistor V2, a fourth diode D4, a fifth diode D5, and a fifth resistor R5, wherein a D pole of the second MOS transistor V2 is connected to the output terminal of the battery module 3 and an anode of the fourth diode D4, a cathode of the fourth diode D4 is connected to a cathode of the fifth diode D5, an anode of the fifth diode D5 is connected to a G pole of the second MOS transistor V2 and the fifth resistor R5, another end of the fifth resistor R5 is grounded, and an S pole of the second MOS transistor V2 is grounded.
When the voltage of the battery E1 is normal, the fifth diode D5 (zener diode) is not conductive; when the voltage of the battery E1 exceeds the upper limit threshold, the fifth diode D5 is conducted, so that the second MOS tube V2 is enabled to be conducted, the voltage on the battery E1 is grounded through the second MOS tube V2 and is discharged quickly, and the battery E1 is prevented from being damaged by overvoltage.
In another embodiment: the fourth diode D4 may be omitted and the fourth diode D4 is a light emitting diode indicating whether the overvoltage discharging module 4 is operated or not.
In this embodiment: referring to fig. 2, the overdischarge-breaking module 5 includes a sixth diode D6, a sixth resistor R6, a seventh resistor R7, a third MOS transistor V3, and a fourth MOS transistor V4, a negative electrode of the sixth diode D6 is connected to the output terminal of the battery module 3, the seventh resistor R7, and an S electrode of the fourth MOS transistor V4, another end of the seventh resistor R7 is connected to the G electrode of the fourth MOS transistor V4 and the D electrode of the third MOS transistor V3, the S electrode of the third MOS transistor V3 is grounded, the G electrode of the third MOS transistor V3 is connected to the positive electrode of the sixth diode D6, the sixth resistor R6, and another end of the sixth resistor R6 is grounded.
In the discharging process of the battery E1, the sixth diode D6 is conducted (voltage stabilizing diode), so that the third MOS tube V3 is conducted, the G electrode of the fourth MOS tube V4 (PMOS tube) is grounded through the third MOS tube V3 (NMOS tube), the fourth MOS tube V4 is conducted, and the battery E1 discharges; when the voltage of the battery E1 drops and reaches the lower threshold, the sixth diode D6 is turned off, so that the G pole of the fourth MOS transistor V4 is at a high level and the fourth MOS transistor V4 is turned off.
In another embodiment: the third MOS transistor V3 can be replaced by a triode.
In this embodiment: referring to fig. 2, the feedback module 6 includes a fourth resistor R4, a first potentiometer RP1, a first capacitor C1, and a controllable precision voltage regulator Z1, one end of the fourth resistor R4 is connected to the output end of the battery module 3, the other end of the fourth resistor R4 is connected to the first potentiometer RP1, the other end of the first potentiometer RP1 is grounded, the sliding end of the first potentiometer RP1 is connected to the control electrode of the first capacitor C1 and the controllable precision voltage regulator Z1, the other end of the first capacitor C1 is grounded, the positive electrode of the controllable precision voltage regulator Z1 is grounded, and the negative electrode of the controllable precision voltage regulator Z1 is connected to the second input end of the battery power supply module 2.
The voltage sum of the fourth resistor R4 and the first potentiometer RP1 is the real-time voltage of the battery E1, the voltage of the battery E1 is sampled and output to the control electrode of the controllable precise voltage-stabilizing source Z1, the voltage of the control electrode and the voltage of the negative electrode of the controllable precise voltage-stabilizing source Z1 are in a certain voltage range in inverse proportion, so that the voltage of the negative electrode of the controllable precise voltage-stabilizing source Z1 is reduced along with the increase of the voltage VCC1 of the battery, the voltage of the base electrode of the first triode V1 is reduced, and the output voltage of the voltage stabilizer U1 is reduced.
In another embodiment: the first potentiometer RP1 can be replaced by a resistor, so that the voltage output to the control electrode of the controllable precision voltage regulator Z1 cannot be adjusted under the condition that the voltage of the battery E1 is not changed, and the charging speed of the battery E1 cannot be changed.
In this embodiment: referring to fig. 3, the delay module 7 includes an eighth resistor R8, a ninth resistor R9, a second potentiometer RP2, a second capacitor C2, and a fifth transistor V5, wherein one end of the eighth resistor R8 is connected to the ninth resistor R9 and the output end of the voltage input module 1, the other end of the eighth resistor R8 is connected to the second potentiometer RP2, the other end of the second potentiometer RP2 is connected to the second capacitor C2 and the base of the fifth transistor V5, the other end of the second capacitor C2 is grounded, the collector of the fifth transistor V5 is connected to the other end of the ninth resistor R9, and the emitter of the fifth transistor V5 is connected to the second input end of the charging fault detection module 8.
The voltage VIN starts to be supplied, the eighth resistor R8 and the second potentiometer RP2 supply power to the second capacitor C2, and the voltage of the second capacitor C2 increases and becomes a high level, so that the fifth triode V5 is turned on, and the charging fault detection module 8 is triggered to operate. The time that the second capacitor C2 is charged to the high level is the delay time.
In another embodiment: the second potentiometer RP2 can be replaced by a resistor, which results in an inability to adjust the delay time.
In this embodiment: referring to fig. 3, the charging fault detection module 8 includes a sixth MOS transistor V6, a seventh diode D7, a tenth resistor R10, an inverter U2, and an eighth diode D8, a D-pole of the sixth MOS transistor V6 is connected to the output end of the battery module 3, a G-pole of the sixth MOS transistor V6 is connected to the output end of the delay module 7, an S-pole of the sixth MOS transistor V6 is connected to a negative pole of the seventh diode D7, an anode of the seventh diode D7 is connected to the input end of the inverter U2 and the tenth resistor R10, the other end of the tenth resistor R10 is grounded, the output end of the inverter U2 is connected to the anode of the eighth diode D8, and a cathode of the eighth diode D8 is connected to the third input end of the battery power supply module 2.
Taking specific numerical values as examples, the numerical values are only examples, and do not represent actual numerical values, the battery E1 is charged in the feedback regulation power supply mode at the beginning, because there is a delay, when the charging fault detection module 8 operates, the voltage of the battery E1 has at least reached 10V, when receiving the trigger signal of the delay module 7, the sixth MOS transistor V6 is turned on, and further, whether the voltage of the battery E1 can break down the seventh diode D7 (a zener diode, whose rated voltage is lower than 10V, which may be about 5V), and when breaking down, the tenth resistor R10 is at a high level, and the inverter U2 outputs a low level, which indicates that the feedback regulation power supply mode operates normally, and the feedback module 6 and the first triode V1 operate normally; when the seventh diode D7 is not broken down, it indicates that the fast charging in the initial state of the feedback regulation power supply mode is abnormal, at this time, the inverter U2 outputs a high level to control the conduction of the thyristor K1, so that the ground terminal of the voltage regulator U1 is grounded through the thyristor K1 and the first diode D1 (zener diode), so that the voltage regulator U1 outputs a constant voltage, and the charging quality of the battery E1 is maintained.
In another embodiment: the inverter U2 can be replaced by a PNP triode, but the output voltage of the inverter U2 is stable, and the subsequent circuit is guaranteed not to fluctuate in operation.
The working principle of the invention is as follows: the voltage input module 1 is externally connected with voltage and supplies power to the battery power supply module 2 and the delay module 7, and the battery power supply module 2 charges a battery; the battery voltage information is received, the voltage output to the battery is adjusted according to the battery voltage, the battery module 3 stores electric energy in the battery, the overvoltage leakage module 4 leaks out when the battery voltage exceeds an upper limit threshold value, the overdischarge disconnection module 5 disconnects the battery power supply circuit when the battery voltage is lower than a lower limit threshold value, the feedback module 6 feeds back the battery voltage information and outputs the battery voltage information to the battery power supply module 2, the charging fault detection module 8 is controlled to work when the battery voltage is delayed after the voltage input module 1 of the delay module 7 supplies power, the charging fault detection module 8 detects the battery voltage information, and the battery power supply module 2 is controlled to supply power at a constant voltage when the battery voltage is detected to be abnormal. The charging voltage of the battery is adjusted through the battery power supply module 2 according to the change of the battery voltage, and the stable operation of the battery charging is ensured.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a control system to lithium battery power management which characterized in that:
this control system to lithium battery power management includes:
the voltage input module is used for externally connecting voltage and supplying power to the battery power supply module and the delay module;
the battery power supply module is used for charging the battery; receiving battery voltage information, and regulating the voltage output to the battery according to the battery voltage;
a battery module for storing electrical energy by a battery;
the overvoltage leakage module is used for leaking out the ground when the voltage of the battery exceeds an upper limit threshold;
the over-discharge disconnection module is used for disconnecting the battery power supply circuit when the battery voltage is lower than a lower limit threshold value;
the feedback module is used for feeding back the voltage information of the battery and outputting the voltage information to the battery power supply module;
the time delay module is used for controlling the charging fault detection module to work in a time delay mode after the voltage input module supplies power;
the charging fault detection module is used for detecting the voltage information of the battery and controlling the battery power supply module to supply power at a constant voltage when detecting that the voltage of the battery is abnormal;
the output end of the voltage input module is connected with the first input end of the battery power supply module, the input end of the delay module, the output end of the battery power supply module is connected with the input end of the battery module, the output end of the battery module is connected with the input end of the overvoltage discharge module, the input end of the overdischarge disconnection module, the input end of the feedback module, the first input end of the charging fault detection module, the output end of the feedback module is connected with the second input end of the battery power supply module, the output end of the delay module is connected with the second input end of the charging fault detection module, and the output end of the charging fault detection module is connected with the third input end of the battery power supply module.
2. The control system for lithium battery power management of claim 1, wherein the battery power supply module comprises a voltage stabilizer, a first resistor, a second resistor, a third resistor, a first triode, a thyristor, and a first diode, wherein an input terminal of the voltage stabilizer is connected to the first resistor and an output terminal of the voltage input module, the other terminal of the first resistor is connected to a base of the first triode and an output terminal of the feedback module, a collector of the first triode is connected to a ground terminal of the voltage stabilizer, the third resistor and an anode of the thyristor, an emitter of the first triode is connected to the second resistor, and the other terminal of the second resistor is grounded, the negative pole of silicon controlled rectifier is connected the negative pole of first diode, and the positive pole ground connection of first diode, the control electrode of silicon controlled rectifier connect the output of charging fault detection module, and the other end of third resistance, the input of battery module are connected to the output of stabiliser.
3. The control system for lithium battery power management according to claim 1, wherein the overvoltage leakage module comprises a second MOS transistor, a fourth diode, a fifth diode, and a fifth resistor, wherein a D electrode of the second MOS transistor is connected to the output terminal of the battery module and an anode electrode of the fourth diode, a cathode electrode of the fourth diode is connected to a cathode electrode of the fifth diode, an anode electrode of the fifth diode is connected to a G electrode of the second MOS transistor and the fifth resistor, another end of the fifth resistor is grounded, and an S electrode of the second MOS transistor is grounded.
4. The control system for power management of the lithium battery as defined in claim 1, wherein the over-discharge disconnection module comprises a sixth diode, a sixth resistor, a seventh resistor, a third MOS transistor and a fourth MOS transistor, a negative electrode of the sixth diode is connected to the output end of the battery module, the seventh resistor and a positive electrode of the fourth MOS transistor, a negative electrode of the seventh resistor is connected to the G electrode of the fourth MOS transistor and the D electrode of the third MOS transistor, the S electrode of the third MOS transistor is grounded, the G electrode of the third MOS transistor is connected to the positive electrode of the sixth diode and the sixth resistor, and the other end of the sixth resistor is grounded.
5. The control system for the power management of the lithium battery as defined in claim 1 or 2, wherein the feedback module comprises a fourth resistor, a first potentiometer, a first capacitor and a controllable precision voltage regulator, one end of the fourth resistor is connected with the output end of the battery module, the other end of the fourth resistor is connected with the first potentiometer, the other end of the first potentiometer is grounded, the sliding end of the first potentiometer is connected with the first capacitor and the control electrode of the controllable precision voltage regulator, the other end of the first capacitor is grounded, the positive electrode of the controllable precision voltage regulator is grounded, and the negative electrode of the controllable precision voltage regulator is connected with the second input end of the battery power supply module.
6. The control system for lithium battery power management as claimed in claim 1, wherein the delay module comprises an eighth resistor, a ninth resistor, a second potentiometer, a second capacitor and a fifth triode, one end of the eighth resistor is connected to the ninth resistor and the output end of the voltage input module, the other end of the eighth resistor is connected to the second potentiometer, the other end of the second potentiometer is connected to the second capacitor and the base of the fifth triode, the other end of the second capacitor is grounded, the collector of the fifth triode is connected to the other end of the ninth resistor, and the emitter of the fifth triode is connected to the second input end of the charging failure detection module.
7. The control system for the power management of the lithium battery as claimed in claim 1 or 2, wherein the charging fault detection module comprises a sixth MOS transistor, a seventh diode, a tenth resistor, an inverter and an eighth diode, wherein the D pole of the sixth MOS transistor is connected to the output end of the battery module, the G pole of the sixth MOS transistor is connected to the output end of the delay module, the S pole of the sixth MOS transistor is connected to the negative pole of the seventh diode, the positive pole of the seventh diode is connected to the input end of the inverter and the tenth resistor, the other end of the tenth resistor is grounded, the output end of the inverter is connected to the positive pole of the eighth diode, and the negative pole of the eighth diode is connected to the third input end of the battery power supply module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210614548.XA CN114726061B (en) | 2022-06-01 | 2022-06-01 | Control system for lithium battery power management |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210614548.XA CN114726061B (en) | 2022-06-01 | 2022-06-01 | Control system for lithium battery power management |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114726061A true CN114726061A (en) | 2022-07-08 |
| CN114726061B CN114726061B (en) | 2022-08-16 |
Family
ID=82232917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210614548.XA Active CN114726061B (en) | 2022-06-01 | 2022-06-01 | Control system for lithium battery power management |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114726061B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116599192A (en) * | 2023-07-17 | 2023-08-15 | 国家电投集团沧州新能源发电有限公司 | Photovoltaic off-grid, commercial network and energy storage hybrid power supply system |
| CN116687670A (en) * | 2023-05-24 | 2023-09-05 | 露乐健康科技股份有限公司 | Intelligent absorbent article with monitoring function, system and method |
| CN116831818A (en) * | 2023-05-24 | 2023-10-03 | 露乐健康科技股份有限公司 | Intelligent absorbent article with automatic monitoring function, method and system |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101599651A (en) * | 2009-06-30 | 2009-12-09 | 聊城大学 | General rapid intelligent charger and charging method |
| CN102306943A (en) * | 2011-09-15 | 2012-01-04 | 河北工业大学 | Lithium ion battery management system |
| CN102545358A (en) * | 2012-02-28 | 2012-07-04 | 江苏省电力公司徐州供电公司 | Charger with full-automatic switching-off function |
| CN103248114A (en) * | 2013-05-27 | 2013-08-14 | 浙江南峰电气有限公司 | Standby power supply charge-discharge control circuit for far-end communication base station |
| CN105048407A (en) * | 2015-08-06 | 2015-11-11 | 侯天凤 | Load protected delay power off circuit preventing direct current backflow |
| US20170123008A1 (en) * | 2015-11-04 | 2017-05-04 | Boston-Power, Inc. | Device and method for detecting transient electrical short circuits in a battery cell or pack |
| CN208028797U (en) * | 2018-01-30 | 2018-10-30 | 大族激光科技产业集团股份有限公司 | A kind of regenerative braking circuit of servo-drive system |
| CN109638918A (en) * | 2018-12-25 | 2019-04-16 | 昆山龙腾光电有限公司 | A kind of charging circuit and electronic equipment |
| CN110138025A (en) * | 2019-04-23 | 2019-08-16 | 深圳先进储能材料国家工程研究中心有限公司 | Induction dustbin rechargeable battery |
| CN110492049A (en) * | 2019-09-23 | 2019-11-22 | 珠海格力电器股份有限公司 | Battery and battery pack |
| CN110635543A (en) * | 2019-07-15 | 2019-12-31 | 重庆市渝北职业教育中心 | Charging control system based on single chip microcomputer |
| CN210806804U (en) * | 2019-11-29 | 2020-06-19 | 厦门著赫电子科技有限公司 | Motor-driven battery pack management system |
| CN212461799U (en) * | 2019-12-11 | 2021-02-02 | 中国人民解放军陆军军事交通学院 | Lead-acid storage battery maintenance device and lead-acid storage battery |
| CN214626439U (en) * | 2021-04-09 | 2021-11-05 | 深圳市星皇通讯设备有限公司 | Lithium battery discharge protection circuit |
| CN113917310A (en) * | 2021-08-26 | 2022-01-11 | 深圳市菲尼基科技有限公司 | Integrated protection board test system |
| CN114301134A (en) * | 2021-12-29 | 2022-04-08 | 广州南方电力集团科技发展有限公司 | Back-up power on-off control circuit |
| CN114368308A (en) * | 2022-02-09 | 2022-04-19 | 安徽凯承源电子科技有限公司 | Unmanned aerial vehicle quick charging system |
-
2022
- 2022-06-01 CN CN202210614548.XA patent/CN114726061B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101599651A (en) * | 2009-06-30 | 2009-12-09 | 聊城大学 | General rapid intelligent charger and charging method |
| CN102306943A (en) * | 2011-09-15 | 2012-01-04 | 河北工业大学 | Lithium ion battery management system |
| CN102545358A (en) * | 2012-02-28 | 2012-07-04 | 江苏省电力公司徐州供电公司 | Charger with full-automatic switching-off function |
| CN103248114A (en) * | 2013-05-27 | 2013-08-14 | 浙江南峰电气有限公司 | Standby power supply charge-discharge control circuit for far-end communication base station |
| CN105048407A (en) * | 2015-08-06 | 2015-11-11 | 侯天凤 | Load protected delay power off circuit preventing direct current backflow |
| US20170123008A1 (en) * | 2015-11-04 | 2017-05-04 | Boston-Power, Inc. | Device and method for detecting transient electrical short circuits in a battery cell or pack |
| CN208028797U (en) * | 2018-01-30 | 2018-10-30 | 大族激光科技产业集团股份有限公司 | A kind of regenerative braking circuit of servo-drive system |
| CN109638918A (en) * | 2018-12-25 | 2019-04-16 | 昆山龙腾光电有限公司 | A kind of charging circuit and electronic equipment |
| CN110138025A (en) * | 2019-04-23 | 2019-08-16 | 深圳先进储能材料国家工程研究中心有限公司 | Induction dustbin rechargeable battery |
| CN110635543A (en) * | 2019-07-15 | 2019-12-31 | 重庆市渝北职业教育中心 | Charging control system based on single chip microcomputer |
| CN110492049A (en) * | 2019-09-23 | 2019-11-22 | 珠海格力电器股份有限公司 | Battery and battery pack |
| CN210806804U (en) * | 2019-11-29 | 2020-06-19 | 厦门著赫电子科技有限公司 | Motor-driven battery pack management system |
| CN212461799U (en) * | 2019-12-11 | 2021-02-02 | 中国人民解放军陆军军事交通学院 | Lead-acid storage battery maintenance device and lead-acid storage battery |
| CN214626439U (en) * | 2021-04-09 | 2021-11-05 | 深圳市星皇通讯设备有限公司 | Lithium battery discharge protection circuit |
| CN113917310A (en) * | 2021-08-26 | 2022-01-11 | 深圳市菲尼基科技有限公司 | Integrated protection board test system |
| CN114301134A (en) * | 2021-12-29 | 2022-04-08 | 广州南方电力集团科技发展有限公司 | Back-up power on-off control circuit |
| CN114368308A (en) * | 2022-02-09 | 2022-04-19 | 安徽凯承源电子科技有限公司 | Unmanned aerial vehicle quick charging system |
Non-Patent Citations (1)
| Title |
|---|
| 王茂等: "便携式仪器电池组管理***设计", 《微处理机》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116687670A (en) * | 2023-05-24 | 2023-09-05 | 露乐健康科技股份有限公司 | Intelligent absorbent article with monitoring function, system and method |
| CN116831818A (en) * | 2023-05-24 | 2023-10-03 | 露乐健康科技股份有限公司 | Intelligent absorbent article with automatic monitoring function, method and system |
| CN116831818B (en) * | 2023-05-24 | 2024-04-09 | 露乐健康科技股份有限公司 | Intelligent absorbent article with automatic monitoring function, method and system |
| CN116687670B (en) * | 2023-05-24 | 2024-04-09 | 露乐健康科技股份有限公司 | Intelligent absorbent article with monitoring function, system and method |
| CN116599192A (en) * | 2023-07-17 | 2023-08-15 | 国家电投集团沧州新能源发电有限公司 | Photovoltaic off-grid, commercial network and energy storage hybrid power supply system |
| CN116599192B (en) * | 2023-07-17 | 2023-09-08 | 国家电投集团沧州新能源发电有限公司 | Photovoltaic off-grid, commercial network and energy storage hybrid power supply system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114726061B (en) | 2022-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114726061B (en) | Control system for lithium battery power management | |
| EP3145043A1 (en) | Explosion-proof circuit, charging circuit and charging/discharging protection circuit of battery | |
| CN104617626B (en) | Charging protection circuit used for capacitor voltage reduction | |
| CN218070994U (en) | Low-voltage early warning protector circuit | |
| CN113285425B (en) | Rectifier with protection function | |
| CN204424972U (en) | For the charge protector of capacitance decompression | |
| CN203896006U (en) | Charging protection control circuit for mobile power supply | |
| CN212726497U (en) | Standby power supply circuit of electric energy meter | |
| CN214543660U (en) | Lithium battery anti-overcharging circuit and lithium battery charger | |
| CN215956093U (en) | Solar controller | |
| CN213457805U (en) | Multifunctional voltage stabilizing circuit | |
| CN115360801B (en) | Charging control device and power supply apparatus | |
| CN218888391U (en) | Power supply circuit capable of rapidly outputting voltage, current and power frequency | |
| CN219477658U (en) | Uninterrupted power supply circuit | |
| CN218829197U (en) | Mobile power supply charger circuit and mobile power supply charger | |
| CN209626990U (en) | A kind of automatic battery charger input undervoltage and overvoltage crowbar | |
| CN218216768U (en) | Overcharge-proof device of charging test instrument | |
| CN219164275U (en) | Storage battery pack charge-discharge protection circuit | |
| CN220234225U (en) | Control circuit of electric appliance | |
| CN218771347U (en) | Protection circuit, power supply unit and power supply system | |
| CN214045153U (en) | Novel circuit structure supporting synchronous charging of double batteries | |
| CN213637096U (en) | Lithium battery charging and discharging protection circuit for Bluetooth sound box | |
| CN215120185U (en) | Overcharge protection circuit of lead storage battery | |
| CN220209993U (en) | Battery management module based on separation components and parts | |
| CN218415889U (en) | Battery charging protection circuit and lithium battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |