CN219871697U - Lithium battery pack health status acquisition system - Google Patents
Lithium battery pack health status acquisition system Download PDFInfo
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- CN219871697U CN219871697U CN202222655648.5U CN202222655648U CN219871697U CN 219871697 U CN219871697 U CN 219871697U CN 202222655648 U CN202222655648 U CN 202222655648U CN 219871697 U CN219871697 U CN 219871697U
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- detection module
- module
- lithium battery
- main control
- voltage
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 45
- 230000003862 health status Effects 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 63
- 239000000779 smoke Substances 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 238000005259 measurement Methods 0.000 claims description 22
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 4
- 230000036541 health Effects 0.000 abstract description 13
- 238000012545 processing Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000009467 reduction Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- 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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- Secondary Cells (AREA)
Abstract
The utility model provides a lithium battery pack health status collection system, includes main control module, voltage detection module, current detection module, temperature detection module, smog detection module, power module that are connected with main control module corresponds the input, wireless transmission module that is connected with main control module output, voltage detection module, current detection module, temperature detection module, smog detection module still are used for detecting lithium battery pack and power module being surveyed respectively. The voltage detection module, the current detection module, the temperature detection module and the smoke detection module respectively and correspondingly collect voltage, current and temperature parameters of the lithium battery, temperature and smoke data in the battery pack shell, the collected data signals are input to the main control module for processing, and then the data signals are transmitted to the remote battery health management system through the wireless transmission module to provide data support for health management of the lithium battery.
Description
Technical Field
The utility model belongs to the technical field of battery management, and particularly relates to a lithium battery pack health state acquisition system.
Background
The lithium battery is a mainstream technical solution of the current energy storage system by virtue of the advantages of high energy density, low self discharge, no environmental pollution, long service life and the like, and plays an increasingly important role in modern life. As the service time increases, the performance of the lithium ion battery gradually deteriorates, which may cause a decrease in charge and discharge performance and even a catastrophic accident, so that it is necessary to diagnose the health status of the lithium ion battery and predict and alarm the possible occurrence of a fault condition thereof. The acquisition of the lithium battery health state data is a key for supporting the health management of the lithium battery, and if the acquisition of the lithium battery performance state is inaccurate, the timely and accurate diagnosis of the lithium battery health state can be affected. The conventional method for monitoring the performance of the lithium battery has the defects of low state acquisition precision, easiness in interference by external factors and the like.
Disclosure of Invention
In order to solve the problems of low acquisition precision of the health state of the lithium battery and easiness in interference of external factors in the background technology and provide a frame support, the utility model provides a health state acquisition system of a lithium battery pack, which comprises the following specific scheme:
the utility model provides a lithium battery pack health status collection system, includes main control module, voltage detection module, current detection module, temperature detection module, smog detection module, power module that are connected with main control module corresponds the input, wireless transmission module that is connected with main control module output, voltage detection module, current detection module, temperature detection module, smog detection module still are used for detecting lithium battery pack and power module being surveyed respectively.
Specifically, the main control module comprises a singlechip, and the model of the singlechip is GD32F103C8T6.
Specifically, the voltage detection module comprises a voltage measurement chip, the voltage measurement chip adopts AD7280, and SCLK port, SDI port, SDO port, ALETR port, CS port and PD port of the voltage measurement chip are respectively connected with corresponding ports of a singlechip of the main control module.
Specifically, the current detection module comprises a Hall current sensor and an operational amplifier which are connected, the signal ends of the four Hall sensors are respectively connected with corresponding ports of the LMS324, and the four output ends of the LMS324 are respectively connected with corresponding input ends of the main control module.
Specifically, the temperature detection module comprises a heat-sensitive sensor and a voltage measurement chip, wherein the heat-sensitive sensor adopts NTC, the voltage measurement chip is AD7280, and a corresponding port of the voltage measurement chip is connected with a signal end of the heat-sensitive sensor and sends acquired temperature data to the main control module.
Specifically, the smoke detection module comprises a smoke sensor and an analog-to-digital converter which are connected, the smoke sensor is in the use model of MQ-2, the analog-to-digital converter is in the model of ADC0832, and signals of the smoke sensor are transmitted into a singlechip of the main control module after passing through the analog-to-digital converter.
Specifically, the wireless transmission module comprises a 5G wireless communication module, and the wireless transmission module adopts a SIM8200EA-M2.
Specifically, the power module comprises a voltage reduction chip and a voltage stabilizing chip which are connected, wherein the voltage reduction chip adopts LM2596S, and the voltage stabilizing chip adopts AMS1117.
The utility model has the beneficial effects that:
(1) The lithium battery health state acquisition device can realize high-precision data acquisition of voltage and current.
(2) The utility model discloses lithium cell's health status collection system considers the interior environment smog collection of battery case, can in time prevent and handle lithium cell incident etc..
(3) The lithium battery health state acquisition device provided by the utility model adopts the 5G wireless transmission module, so that the long-distance wireless transmission of acquired data can be realized.
Drawings
Fig. 1 is a block diagram of a lithium battery health status collection device;
fig. 2 is a schematic diagram of a voltage acquisition module of the device for acquiring health status parameters of a lithium battery according to the present utility model.
Fig. 3 is a schematic diagram of a current collection module of the device for collecting health status parameters of a lithium battery according to the present utility model.
Fig. 4 is a schematic diagram of a temperature acquisition module of the device for acquiring health status parameters of a lithium battery according to the present utility model.
Fig. 5 is a schematic diagram of a smoke collection module of the device for collecting health status parameters of a lithium battery according to the present utility model.
Fig. 6 is a schematic diagram of a wireless transmission module of the device for acquiring health status parameters of a lithium battery according to the present utility model.
Fig. 7 is a schematic diagram of a power supply acquisition module of the device for acquiring health status parameters of a lithium battery according to the present utility model.
Fig. 8 shows a voltage and temperature detection circuit implemented by AD 7280.
Fig. 9 is a circuit of the current detection module.
In the figure:
1. a main control module; 2. a voltage detection module; 3. a current detection module; 4. a temperature detection module; 5. a smoke detection module; 6. a wireless transmission module; 7. a power module; 8. and a lithium battery pack to be tested.
Detailed Description
As shown in fig. 1, the lithium battery pack health status collection system comprises a main control module, a voltage detection module, a current detection module, a temperature detection module, a smoke detection module, a power module and a wireless transmission module, wherein the voltage detection module, the current detection module, the temperature detection module and the smoke detection module are connected with corresponding input ends of the main control module, and the wireless transmission module is connected with output ends of the main control module. The voltage detection module, the current detection module, the temperature detection module and the smoke detection module respectively and correspondingly collect voltage, current and temperature parameters of the lithium battery, temperature and smoke data in the battery pack shell, the collected data signals are input to the main control module for processing, and then the data signals are transmitted to the remote battery health management system through the wireless transmission module to provide data support for health management of the lithium battery.
As shown in fig. 2, the main control module includes a single-chip microcomputer, and the model of the single-chip microcomputer is GD32F103C8T6.
The voltage measurement realizes multiplexing of battery voltage and an auxiliary ADC measurement channel, and measured data is transmitted to a main control module. The voltage detection module comprises a voltage measurement chip, wherein the voltage measurement chip is AD7280, and the device is provided with a multiplexing battery voltage and an auxiliary ADC measurement channel and can be used for managing a plurality of lithium batteries. And the SCLK port, the SDI port, the SDO port, the ALETR port, the CS port and the PD port of the voltage measurement chip are respectively connected with corresponding ports of a singlechip of the main control module. A specific design circuit is shown in fig. 8.
As shown in fig. 3, the current detection module includes a hall current sensor and an operational amplifier, where the hall current sensor is used to collect the current when the lithium battery is charged or discharged, and the operational amplifier ensures that the output signal is not affected by the power supply voltage conversion, so as to improve the detection accuracy of the current. Specifically, the hall current sensor selects ACS712 to realize current collection when the lithium battery is charged or discharged. The operational amplifier is LMS324, and the device can realize differential amplification of four channels. The signal ends of the four Hall sensors are respectively connected with corresponding ports of the LMS324, and the four output ends of the LMS324 are respectively connected with corresponding input ends of the main control module. Specifically, as shown IN fig. 9, the four hall current sensors ACS712 respectively pass through the peripheral circuits and output to the IN-input ends corresponding to the LMS324, and the corresponding positive input ends are respectively linked with the corresponding circuits to form a radial-following circuit with a amplification factor, so that the output impedance can be effectively reduced, the output current can be increased, the load capacity can be increased, and the current detection precision can be improved.
As shown in fig. 4, the temperature detection module includes a thermal sensor and a voltage measurement chip connected, where the thermal sensor is used to collect the ambient temperature of the lithium battery during operation, the voltage measurement chip and the voltage detection module share the same chip, and use an AD7280 auxiliary port to realize the measurement of the working temperature, and the voltage measurement chip is connected with the signal end of the thermal sensor corresponding to the port and sends the collected temperature data to the main control module. In the scheme, the heat-sensitive sensor adopts NTC, and the heat-sensitive sensor is used for gathering the ambient temperature of lithium cell during operation. Specifically, as shown in fig. 8, the resources of AD7280 are fully utilized, and the temperature detection and the voltage detection are fused.
As shown in fig. 5, the smoke detection module includes a smoke sensor and an analog-to-digital converter connected, wherein the smoke sensor is used for collecting smoke of the environment in the lithium battery pack shell, and the analog-to-digital converter is used for converting collected smoke data into digital information and transmitting the digital information to the main control module. Specifically, the use model of the smoke sensor is MQ-2, the model of the analog-to-digital converter is ADC0832, and signals of the smoke sensor are transmitted into a singlechip of the main control module after passing through the analog-to-digital converter.
As shown in fig. 6, the wireless transmission module includes a 5G wireless communication module, where the 5G wireless communication module collects and implements remote wireless transmission of collected information, and transmits the information processed by the main control module to a remote end, so as to provide data support for the lithium battery health management system. Specifically, the wireless transmission module adopts the SIM8200EA-M2, the device has a multi-band 5G module solution, supports data transmission of R155GNSA/SA up to 4.0Gbps, and has strong expansion capability and rich interfaces including PCIe, USB3.1, GPIO and the like.
As shown in fig. 7, the power module includes a voltage reduction chip and a voltage stabilizing chip connected to each other, the voltage reduction chip realizes voltage reduction, the voltage stabilizing chip realizes voltage stabilizing conversion, and the power module provides +12v, +5v, +3.3v power voltages for each module, so as to ensure normal operation of each module. The voltage reduction chip adopts LM2596S to realize the voltage reduction treatment of +12V and reduce the voltage to +5V. AMS1117 is selected as the voltage stabilizing chip to realize voltage conversion and stabilize +5V voltage to 3.3V output.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (8)
1. The utility model provides a lithium battery pack health status collection system which characterized in that, including main control module, voltage detection module, current detection module, temperature detection module, smog detection module, power module that correspond the input and be connected with main control module, the wireless transmission module who is connected with main control module output, voltage detection module, current detection module, temperature detection module, smog detection module still are used for detecting lithium battery pack and power module being surveyed respectively.
2. The system for collecting health status of a lithium battery pack according to claim 1, wherein the main control module comprises a single chip microcomputer, and the model of the single chip microcomputer is GD32F103C8T6.
3. The system for collecting health status of lithium battery pack according to claim 2, wherein the voltage detection module comprises a voltage measurement chip, the voltage measurement chip is AD7280, and SCLK port, SDI port, SDO port, ALETR port, CS port and PD port of the voltage measurement chip are respectively connected with corresponding ports of a singlechip of the main control module.
4. The system of claim 1, wherein the current detection module comprises a hall current sensor and an operational amplifier, the signal ends of the four hall current sensors are respectively connected with corresponding ports of the LMS324, and the four output ends of the LMS324 are respectively connected with corresponding input ends of the main control module.
5. The system for collecting health status of lithium battery pack according to claim 1, wherein the temperature detection module comprises a thermal sensor and a voltage measurement chip, the thermal sensor adopts NTC, the voltage measurement chip is AD7280, a corresponding port of the voltage measurement chip is connected with a signal end of the thermal sensor, and the collected temperature data is sent to the main control module.
6. The lithium battery pack health status collection system according to claim 1, wherein the smoke detection module comprises a smoke sensor and an analog-to-digital converter which are connected, the smoke sensor is in the type of MQ-2, the analog-to-digital converter is in the type of ADC0832, and signals of the smoke sensor are transmitted into a singlechip of the main control module after passing through the analog-to-digital converter.
7. The system of claim 1, wherein the wireless transmission module comprises a 5G wireless communication module, and wherein the wireless transmission module comprises a SIM8200EA-M2.
8. The system of claim 1, wherein the power module comprises a buck chip and a voltage stabilizing chip connected to each other, wherein the buck chip is LM2596S, and the voltage stabilizing chip is AMS1117.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222655648.5U CN219871697U (en) | 2022-10-09 | 2022-10-09 | Lithium battery pack health status acquisition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222655648.5U CN219871697U (en) | 2022-10-09 | 2022-10-09 | Lithium battery pack health status acquisition system |
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| Publication Number | Publication Date |
|---|---|
| CN219871697U true CN219871697U (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222655648.5U Active CN219871697U (en) | 2022-10-09 | 2022-10-09 | Lithium battery pack health status acquisition system |
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| Country | Link |
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| CN (1) | CN219871697U (en) |
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2022
- 2022-10-09 CN CN202222655648.5U patent/CN219871697U/en active Active
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