CN218675240U - Lithium battery comprehensive test equipment with multifunctional protection - Google Patents
Lithium battery comprehensive test equipment with multifunctional protection Download PDFInfo
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- CN218675240U CN218675240U CN202222665913.8U CN202222665913U CN218675240U CN 218675240 U CN218675240 U CN 218675240U CN 202222665913 U CN202222665913 U CN 202222665913U CN 218675240 U CN218675240 U CN 218675240U
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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
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- 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
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Abstract
The utility model discloses a lithium battery comprehensive test device with multifunctional protection, which relates to the technical field of lithium batteries and comprises a lithium battery module for providing a lithium battery circuit to be detected; the lithium battery stability detection module is used for voltage sampling and overcharge and overdischarge judgment; the threshold detection control module is used for detecting the working state; the overcharge protection module is used for controlling the discharge of the lithium battery circuit; the over-discharge protection module is used for controlling the charging of the lithium battery circuit; and the device power supply charging and discharging module is used for charging and discharging the device power supply circuit. The utility model discloses lithium cell integrated test equipment with multi-functional protection carries out voltage sampling to the lithium battery circuit that needs detected to go on stably overcharging and cross putting the detection, so that detect lithium battery circuit cross fill the discharge state, will share the electric energy of input lithium battery circuit when crossing filling, reduce lithium battery circuit's excessive pressure degree, provide the electric energy for lithium battery circuit when crossing discharging, reduce lithium battery circuit's the degree of putting excessively.
Description
Technical Field
The utility model relates to a lithium cell technical field specifically is a lithium cell integrated test equipment with multi-functional protection.
Background
Lithium cell is as electronic equipment's supply power, need unscheduled carry out the performance detection to it, so as to ensure that it carries out stable work, current lithium cell integrated test equipment only can be to the excessive pressure overdischarge of lithium cell, capacity, performance such as temperature detect, so as to learn the comprehensive properties of lithium cell, in order to detect the excessive pressure and the overdischarge degree of lithium cell, it is in the state of overcharging and overdischarging to need the lithium cell, because the effect that lithium cell integrated test equipment played the detection more, can't be in when overcharging and the state of overdischarging at the lithium cell, carry out corresponding control protection, the injury that causes the lithium cell when unable reduction overcharging and overdischarging, consequently, await the improvement.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a lithium cell integrated test equipment with many functional protection to solve the problem that proposes in the above-mentioned background art.
The basis the embodiment of the utility model provides an in, provide a lithium cell integrated test equipment with multi-functional protection, this lithium cell integrated test equipment with multi-functional protection includes: the device comprises a lithium battery module, a lithium battery stability detection module, a threshold detection control module, an overcharge protection module, an overdischarge protection module and an equipment power supply charge-discharge module;
the lithium battery module is used for providing a lithium battery circuit to be detected;
the lithium battery stability detection module is connected with the lithium battery module, is used for detecting the positive and negative polarities of input electric energy, is used for sampling the electric energy output by the lithium battery module and sampling signals, and is used for performing voltage stabilization control on the sampling signals and outputting first control signals;
the threshold detection control module is connected with the lithium battery stability detection module and the overcharge protection module and is used for comparing the sampling signal with a set electric quantity threshold and controlling the overcharge protection module to work;
the overcharge protection module is connected with the lithium battery stability detection module and is used for receiving the first control signal and isolating and controlling the lithium battery module to perform discharge control;
the over-discharge protection module is connected with the lithium battery stability detection module and the equipment power supply charge-discharge module and is used for receiving the first control signal and isolating and controlling the equipment power supply charge-discharge module to perform discharge work;
and the equipment power supply charging and discharging module is connected with the lithium battery stability detection module and the overcharge protection module and is used for carrying out DC-DC (direct current-direct current) processing on input electric energy and carrying out charging and discharging work by an equipment power supply circuit.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses lithium cell integrated test equipment with multi-functional protection adopts the lithium cell to stabilize detection module and carries out voltage sampling to the lithium battery circuit that needs detected, and stabilize overcharge and overdischarge the detection, so that lithium cell integrated test equipment appears overcharging when detecting lithium battery circuit, share the electric energy of input lithium battery circuit by overcharge protection module controlgear power charge-discharge module, reduce lithium battery circuit's excessive pressure degree, ensure the overcharge detection precision to the lithium cell simultaneously, when overdischarging the detection, provide certain electric energy for lithium battery circuit by overdischarge protection module controlgear power charge-discharge module, reduce lithium battery circuit excessive discharge degree, effectively reduce the damage degree that causes lithium battery circuit when detecting.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic block diagram of a lithium battery comprehensive testing device with multifunctional protection according to an embodiment of the present invention.
Fig. 2 is a circuit diagram of a lithium battery comprehensive test device with multifunctional protection according to an embodiment of the present invention.
Fig. 3 is a connection circuit diagram of an over-discharge protection module according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Embodiment 1, referring to fig. 1, a comprehensive test device for a lithium battery with multifunctional protection includes: the device comprises a lithium battery module 1, a lithium battery stability detection module 2, a threshold detection control module 3, an overcharge protection module 4, an overdischarge protection module 5 and an equipment power supply charging and discharging module 6;
specifically, the lithium battery module 1 is used for providing a lithium battery circuit to be detected;
the lithium battery stability detection module 2 is connected with the lithium battery module 1, is used for detecting the positive polarity and the negative polarity of input electric energy, is used for sampling the electric energy output by the lithium battery module 1 and sampling signals, and is used for performing voltage stabilization control on the sampling signals and outputting first control signals;
the threshold detection control module 3 is connected with the lithium battery stability detection module 2 and the overcharge protection module 4 and is used for comparing the sampling signal with a set electric quantity threshold and controlling the overcharge protection module 4 to work;
the overcharge protection module 4 is connected with the lithium battery stability detection module 2 and is used for receiving the first control signal and isolating and controlling the lithium battery module 1 to perform discharge control;
the over-discharge protection module 5 is connected with the lithium battery stability detection module 2 and the equipment power supply charging and discharging module 6 and is used for receiving the first control signal and isolating and controlling the equipment power supply charging and discharging module 6 to perform discharging work;
and the equipment power supply charging and discharging module 6 is connected with the lithium battery stability detection module 2 and the overcharge protection module 4 and is used for carrying out DC-DC processing on input electric energy and carrying out charging and discharging work by an equipment power supply circuit.
In a specific embodiment, the lithium battery module 1 is configured to provide a lithium battery circuit to be detected, and details are not described herein; the lithium battery stability detection module 2 can adopt a resistance voltage division circuit to sample voltage and adopts a triode circuit and a three-terminal voltage stabilizing circuit to detect overvoltage and overdischarge; the threshold detection control module 3 can adopt a comparison circuit to realize the normal state detection of the lithium battery circuit; the overcharge protection module 4 can adopt an isolation power tube control circuit to complete overcharge protection control; the over-discharge protection module 5 can adopt a triode circuit and an isolation power tube circuit to complete over-discharge protection control; the device power supply charging and discharging module 6 can adopt a DC-DC circuit to adjust voltage, provides required charging and discharging energy for an energy storage power supply circuit of the lithium battery comprehensive test device, and has a discharging function.
specifically, the first end of the lithium battery module is connected with the cathode of the first indicator light LED1, the slider end of the first potentiometer RP1, one end of the third resistor R3 and the collector electrode of the first switching tube VT1, the anode of the first indicator light LED1 is connected with the second shield of the lithium battery module through the first resistor R1, one end of the second resistor R2, the anode of the first voltage stabilizer U1, the anode of the first voltage stabilizer VD1, the other end of the sixth resistor R6 and the ground end, the other end of the first potentiometer RP1 is connected with the first end of the first capacitor C1, the other end of the second capacitor C2, one end of the fifth resistor R5 and the control end of the first voltage stabilizer U1, the second end of the first capacitor C1 is connected with the emergency of the first voltage stabilizer U1 and is connected with the other end of the third resistor R3 and the base electrode of the first switching tube VT1 through the fourth resistor R4, and the emitter electrode of the first switching tube VT1 is connected with the other end of the fifth resistor R5, the cathode of the sixth resistor VD1 and the cathode of the first switching tube VT 1.
In a specific embodiment, the first indicator light LED1 and the first resistor R1 are used for detecting whether there is a reverse connection of electric energy; the first switch tube VT1 can be a PNP type triode; the first voltage stabilizer U1 can select a TL431 three-terminal integrated voltage stabilizing chip to provide a reference source.
Further, the overcharge protection module 4 includes a first optocoupler U2, a seventh resistor R7, an eighth resistor R8, a second voltage regulator tube VD2, a ninth resistor R9, a first power tube Q1, a tenth resistor R10, and a second power tube Q2; the equipment power supply charging and discharging module 6 comprises an equipment energy storage power supply;
specifically, the first end of the first optocoupler U2 is connected with the cathode of the first voltage regulator tube VD1, the second end of the first optocoupler U2 is connected with the ground end, the third end of the first optocoupler U2 is connected with the first end of the equipment energy storage power supply through a seventh resistor R7, the fourth end of the first optocoupler U2 is connected with the anode of the second voltage regulator tube VD2 and is connected with the first end of a ninth resistor R9 and the grid electrode of the first power tube Q1 through an eighth resistor R8, the anode of the second voltage regulator tube VD2, the second end of the ninth resistor R9, the source electrode of the first power tube Q1 and the second end of the equipment energy storage power supply are all grounded, and the drain electrode of the first power tube Q1 is connected with the grid electrode of the second power tube Q2 and is connected with the source electrode of the second power tube Q2 and the first end of the lithium battery module through a tenth resistor R10.
In a specific embodiment, the first power tube Q1 may be an N-channel enhancement type MOS tube, the second power tube Q2 may be a P-channel enhancement type MOS tube, the first power tube Q1 is configured to control the operation of the second power tube Q2, and the second power tube Q2 is configured to control the charging of the energy storage power supply of the device; the first optical coupler U2 can be a PC817 photoelectric coupler.
Further, the threshold detection control module 3 includes a fifteenth resistor R15, a first comparator A1, an electric quantity threshold, a sixteenth resistor R16, and a second switching tube VT2;
specifically, one end of the fifteenth resistor R15 is connected to the first end of the first capacitor C1, the other end of the fifteenth resistor R15 is connected to the inverting terminal of the first comparator A1, the non-inverting terminal of the first comparator A1 is connected to the electric quantity threshold, the output terminal of the first comparator A1 is connected to the base of the second switching tube VT2 through the sixteenth resistor R16, the emitter of the second switching tube VT2 is connected to the ground, and the collector of the second switching tube VT2 is connected to the first end of the ninth resistor R9.
In a specific embodiment, the first comparator A1 may be an LM393 comparator; the electric quantity threshold value is used as a threshold value during overcharging and is used for judging whether the input electric energy exceeds the overcharging value.
Further, the over-discharge protection module 5 includes a third switching tube VT3, a seventeenth resistor R17, a second optocoupler U4, a fourth voltage regulator tube VD4, a nineteenth resistor R19, a twentieth resistor R20, a twenty-first resistor R21, a third power tube Q3, an eighteenth resistor R18, and a fourth power tube Q4;
specifically, the base of the third switch tube VT3 is connected to the emitter of the first switch tube VT1, the collector of the third switch tube VT3 is connected to the first end of the second optocoupler U4 through a seventeenth resistor R17, the second end of the second optocoupler U4 is grounded, the third end of the second optocoupler U4 is connected to the first end of the energy storage power supply of the device and the source of the fourth power tube Q4 through a nineteenth resistor R19, the drain of the fourth power tube Q4 is connected to the first end of the lithium battery module 1 and the emitter of the third switch tube VT3 and to the gate of the fourth power tube Q4 and the drain of the third power tube Q3 through an eighteenth resistor R18, the gate of the third power tube Q3 is connected to one end of a twenty-first resistor R21 and to the cathode of the fourth voltage-regulator tube VD4 and the fourth end of the second optocoupler U4 through a twentieth resistor R20, and the anode of the fourth voltage-regulator tube VD4, the other end of the twenty-first resistor R21 and the source of the third power tube Q3 are grounded.
In a specific embodiment, the third power tube Q3 may be an N-channel enhancement type MOS tube, the fourth power tube Q4 may be a P-channel enhancement type MOS tube, the third power tube Q3 is configured to control the operation of the fourth power tube Q4, and the second power tube is configured to control the discharge of the energy storage power supply of the device;
further, the device power supply charging and discharging module 6 further includes an eleventh resistor R11, a third voltage regulator VD3, a twelfth resistor R12, a second capacitor C2, a first controller U3, a fourteenth resistor R14, a first diode D1, and a second potentiometer RP2;
specifically, one end of the eleventh resistor R11, one end of the twelfth resistor R12, and the fourth and eighth ends of the first controller U3 are all connected to the drain of the second power tube Q2, the other end of the eleventh resistor R11 is connected to the cathode of the third voltage regulator VD3 and the second end of the first controller U3, the other end of the twelfth resistor R12 is connected to the fifth end of the first controller U3 and is connected to the anode of the third voltage regulator VD3, the first end of the first controller U3, one end of the second potentiometer RP2, and the ground through the second capacitor C2, the third end of the first controller U3 is connected to the anode of the first diode D1 through the fourteenth resistor R14, the cathode of the first diode D1 is connected to the other end of the second potentiometer RP2 and the first end of the device energy storage power supply, and the sixth end of the first controller U3 is connected to the slider end of the second potentiometer RP 2.
In a specific embodiment, the NE555 chip may be selected as the first controller U3, and the first potentiometer RP1 is used to adjust the electric energy output by the first controller U3.
The utility model relates to a lithium battery comprehensive test device with multifunctional protection, a lithium battery module 1 is used for providing a lithium battery module to be detected, whether reverse connection exists is detected through a first indicator light LED1, voltage sampling is carried out through a first potentiometer RP1 and a second resistor R2, the sampled signal is subjected to overcharge and overdischarge judgment through a third resistor R3, a fourth resistor R4, a fifth resistor R5 and a first voltage-regulator tube VD1, when the voltage is higher during overcharge, a first switch tube VT1 is conducted, meanwhile, the first comparator A1 outputs low level, the second switch tube VT2 is cut off, a first optical coupler U2 is conducted, the first power tube Q1 is electrified and conducted, and a second power tube Q2 is conducted, one part of electric energy when the lithium battery module is overcharged is transmitted to the first controller U3 by the second power tube Q2, the first controller U3 carries out charging control on the energy storage power supply of the device, the overcharge degree when the lithium battery module is overcharged is reduced, when the electric energy of the lithium battery module is normal, the first comparator A1 outputs a high level, the second switch tube VT2 is conducted, the first power tube Q1 and the second power tube Q2 are cut off, charging is stopped, when the lithium battery module is overdischarged, the first switch tube VT1 is cut off, the third switch tube VT3 is conducted, so that the second optical coupler U4 is conducted, the third power tube Q3 and the fourth power tube Q4 are conducted, the energy storage power supply of the device provides certain electric energy for the lithium battery module, and the overdischarge degree of the lithium battery module is prevented.
This lithium cell integrated test equipment with multi-functional protection adopts lithium cell to stabilize detection module 2 and carries out voltage sampling to the lithium battery circuit that needs to detect, and stabilize overcharge and overdischarge the detection, so that lithium cell integrated test equipment is when detecting that lithium battery circuit appears overcharging, share the electric energy of input lithium battery circuit by overcharge protection module 4 controlgear power supply charge-discharge module 6, reduce lithium battery circuit's excessive pressure degree, ensure the overcharge detection precision to the lithium cell simultaneously, when overdischarging the detection, provide certain electric energy for lithium battery circuit by overdischarge protection module 5 controlgear power supply charge-discharge module 6, reduce lithium battery circuit excess discharge degree, effectively reduce the damage degree that causes lithium battery circuit when detecting.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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 (6)
1. A lithium battery comprehensive test device with multifunctional protection is characterized in that,
this lithium cell integrated test equipment with multi-functional protection includes: the device comprises a lithium battery module, a lithium battery stability detection module, a threshold detection control module, an overcharge protection module, an overdischarge protection module and a device power supply charge-discharge module;
the lithium battery module is used for providing a lithium battery circuit to be detected;
the lithium battery stability detection module is connected with the lithium battery module, is used for detecting the positive and negative polarities of input electric energy, is used for sampling the electric energy output by the lithium battery module and sampling signals, and is used for performing voltage stabilization control on the sampling signals and outputting first control signals;
the threshold detection control module is connected with the lithium battery stability detection module and the overcharge protection module and is used for comparing the sampling signal with a set electric quantity threshold and controlling the overcharge protection module to work;
the overcharge protection module is connected with the lithium battery stability detection module and is used for receiving the first control signal and isolating and controlling the lithium battery module to perform discharge control;
the over-discharge protection module is connected with the lithium battery stability detection module and the equipment power supply charge-discharge module and is used for receiving the first control signal and isolating and controlling the equipment power supply charge-discharge module to perform discharge work;
and the equipment power supply charging and discharging module is connected with the lithium battery stability detection module and the overcharge protection module and is used for carrying out DC-DC processing on input electric energy and carrying out charging and discharging work by an equipment power supply circuit.
2. The lithium battery comprehensive test equipment with multifunctional protection as claimed in claim 1, wherein the lithium battery module comprises a lithium battery module; the lithium battery stability detection module comprises a first resistor, a first indicator light, a first potentiometer, a second resistor, a first capacitor, a first voltage stabilizer, a third resistor, a fourth resistor, a first switching tube, a fifth resistor, a first voltage stabilizing tube and a sixth resistor;
the first end of the lithium battery module is connected with the cathode of the first indicator lamp, the slide end of the first potentiometer, one end of the third resistor and the collector electrode of the first switch tube, the anode of the first indicator lamp is connected with the second shield of the lithium battery module through the first resistor, one end of the second resistor, the anode of the first voltage stabilizer, the anode of the first voltage regulator tube, the other end of the sixth resistor and the ground end, the other end of the first potentiometer is connected with the first end of the first capacitor, the other end of the second capacitor, one end of the fifth resistor and the control end of the first voltage stabilizer, the second end of the first capacitor is connected with the emergency of the first voltage stabilizer and connected with the other end of the third resistor and the base electrode of the first switch tube through the fourth resistor, and the emitter electrode of the first switch tube is connected with the other end of the fifth resistor, the cathode of the first voltage regulator tube and the other end of the sixth resistor.
3. The lithium battery comprehensive test equipment with multifunctional protection as claimed in claim 2, wherein the overcharge protection module comprises a first optocoupler, a seventh resistor, an eighth resistor, a second voltage regulator tube, a ninth resistor, a first power tube, a tenth resistor, and a second power tube; the equipment power supply charging and discharging module comprises an equipment energy storage power supply;
the first end of the first optical coupler is connected with the cathode of the first voltage-stabilizing tube, the second end of the first optical coupler is connected with the ground end, the third end of the first optical coupler is connected with the first end of the energy storage power supply of the equipment through a seventh resistor, the fourth end of the first optical coupler is connected with the anode of the second voltage-stabilizing tube and is connected with the first end of the ninth resistor and the grid electrode of the first power tube through an eighth resistor, the anode of the second voltage-stabilizing tube, the second end of the ninth resistor, the source electrode of the first power tube and the second end of the energy storage power supply of the equipment are all grounded, and the drain electrode of the first power tube is connected with the grid electrode of the second power tube and is connected with the source electrode of the second power tube and the first end of the lithium battery module through a tenth resistor.
4. The lithium battery comprehensive test equipment with multifunctional protection as claimed in claim 3, wherein the threshold detection control module comprises a fifteenth resistor, a first comparator, an electric quantity threshold, a sixteenth resistor and a second switch tube;
one end of the fifteenth resistor is connected with the first end of the first capacitor, the other end of the fifteenth resistor is connected with the inverting end of the first comparator, the non-inverting end of the first comparator is connected with the electric quantity threshold, the output end of the first comparator is connected with the base electrode of the second switch tube through the sixteenth resistor, the emitting electrode of the second switch tube is connected with the ground end, and the collector electrode of the second switch tube is connected with the first end of the ninth resistor.
5. The comprehensive test equipment for the lithium battery with the multifunctional protection function according to claim 4, wherein the over-discharge protection module comprises a third switching tube, a seventeenth resistor, a second optocoupler, a fourth voltage regulator tube, a nineteenth resistor, a twentieth resistor, a twenty-first resistor, a third power tube, an eighteenth resistor and a fourth power tube;
the base electrode of the third switch tube is connected with the emitting electrode of the first switch tube, the collector electrode of the third switch tube is connected with the first end of the second optocoupler through a seventeenth resistor, the second end of the second optocoupler is grounded, the third end of the second optocoupler is connected with the first end of the equipment energy storage power supply and the source electrode of the fourth power tube through a nineteenth resistor, the drain electrode of the fourth power tube is connected with the first end of the lithium battery module and the emitting electrode of the third switch tube and is connected with the grid electrode of the fourth power tube and the drain electrode of the third power tube through an eighteenth resistor, the grid electrode of the third power tube is connected with one end of the twenty-first resistor and is connected with the cathode of the fourth voltage regulator tube and the fourth end of the second optocoupler through the twentieth resistor, and the anode of the fourth voltage regulator tube, the other end of the twenty-first resistor and the source electrode of the third power tube are all grounded.
6. The lithium battery comprehensive test equipment with multifunctional protection as claimed in claim 4, wherein the equipment power supply charging and discharging module further comprises an eleventh resistor, a third voltage regulator tube, a twelfth resistor, a second capacitor, a first controller, a fourteenth resistor, a first diode, a second potentiometer;
one end of the eleventh resistor, one end of the twelfth resistor, the fourth end and the eighth end of the first controller are all connected with the drain electrode of the second power tube, the other end of the eleventh resistor is connected with the cathode of the third voltage-regulator tube and the second end of the first controller, the other end of the twelfth resistor is connected with the fifth end of the first controller and is connected with the anode of the third voltage-regulator tube, the first end of the first controller, one end of the second potentiometer and the ground end through the second capacitor, the third end of the first controller is connected with the anode of the first diode through the fourteenth resistor, the cathode of the first diode is connected with the other end of the second potentiometer and the first end of the energy storage power supply of the equipment, and the sixth end of the first controller is connected with the slide sheet end of the second potentiometer.
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116742764A (en) * | 2023-08-15 | 2023-09-12 | 中碳海巢(北京)新能源科技有限公司 | Energy storage battery charging management system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116742764A (en) * | 2023-08-15 | 2023-09-12 | 中碳海巢(北京)新能源科技有限公司 | Energy storage battery charging management system |
| CN116742764B (en) * | 2023-08-15 | 2023-10-27 | 中碳海巢(北京)新能源科技有限公司 | Energy storage battery charging management system |
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