CN113627582A - Lithium battery pressure-proof and separable fireproof data storage device and information storage method - Google Patents
Lithium battery pressure-proof and separable fireproof data storage device and information storage method Download PDFInfo
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- CN113627582A CN113627582A CN202111012130.3A CN202111012130A CN113627582A CN 113627582 A CN113627582 A CN 113627582A CN 202111012130 A CN202111012130 A CN 202111012130A CN 113627582 A CN113627582 A CN 113627582A
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 73
- 238000013500 data storage Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 21
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003063 flame retardant Substances 0.000 claims abstract description 16
- 230000006698 induction Effects 0.000 claims abstract description 12
- 239000000919 ceramic Substances 0.000 claims abstract description 11
- 230000001012 protector Effects 0.000 claims abstract description 11
- 230000002159 abnormal effect Effects 0.000 claims abstract description 9
- 239000002689 soil Substances 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 230000002411 adverse Effects 0.000 claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000741 silica gel Substances 0.000 claims abstract description 6
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 6
- 238000007726 management method Methods 0.000 claims description 23
- 230000007613 environmental effect Effects 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 7
- 239000011324 bead Substances 0.000 claims description 5
- 238000005187 foaming Methods 0.000 claims description 4
- 206010000369 Accident Diseases 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 10
- 230000002265 prevention Effects 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract 1
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- 238000012544 monitoring process Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/0772—Physical layout of the record carrier
- G06K19/07722—Physical layout of the record carrier the record carrier being multilayered, e.g. laminated sheets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00309—Overheat or overtemperature protection
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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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Abstract
The invention relates to a pressure-proof and separable fireproof data storage device and an information storage method for a lithium battery. The invention discloses a lithium battery pressure-proof and separable fireproof data storage device which comprises an induction corner protector, an independent large-capacity storage device, a BMS battery control module and an input safety and alarm device. The plurality of induction corner protectors are arranged at four corners of the lithium battery and comprise a pressure sensor assembly and flame-retardant ultralight soil wrapping the pressure sensor assembly; the independent mass storage device comprises a mass storage card, a silica gel buffer layer, a ceramic heat insulation fireproof layer and an outer metal layer. The invention has the advantages of extrusion early warning, falling prevention protection information collection, storage and alarm protection, temperature and humidity early warning, temperature and humidity protection information collection, storage and alarm protection, and can effectively avoid the occurrence of adverse accidents and the recording of abnormal factors by comprehensively collecting, storing and controlling the information in the operation of the lithium battery.
Description
Technical Field
The invention relates to a lithium battery data information collection and control method, in particular to a lithium battery pressure-proof and separable fireproof data storage device and an information storage method.
Background
Nowadays, the lithium battery application field is becoming extensive day by day, and more or less all trades all have related, have steadily developed in the global field moreover, bring thereupon, bad accident, the incident of catching fire are also more and more, and some is all destroyed seriously, even burns out carbonization completely, can't trace back the true reason that the problem took place. In view of the above, it is necessary to develop a reliable, stable and comprehensive information collection method for stably recording the usage records of the lithium battery for anomaly analysis. The method becomes an important means for safe use, operation management and accident analysis of the battery, and becomes an important way indispensable to the safety of the battery. At present, all domestic lithium batteries do not pay attention to the safety of recorded data, once an accident occurs, the batteries are seriously impacted and extruded, or the batteries are burnt at high temperature and fall into water, the recorded data are likely to be lost, and the difficulty which is difficult to overcome is brought to accident analysis and field data recovery.
In view of the above drawbacks, it is necessary to develop a method for storing and collecting information with extrusion pre-warning and anti-falling protection while meeting the performance requirements of a conventional BMS, and having a method for separating and collecting fire-proof data. After a major accident occurs, the data can still be stored and all the data can be read out smoothly, which becomes an inevitable development approach for the practicability of the lithium battery.
Compared with the conventional lithium battery pack, the lithium battery pack provided by the invention meets the searched patent performance, and simultaneously has the following capacity expansion function mode: the extrusion early warning and anti-falling protection information storage and collection method has a fireproof data separation and collection method, and the comprehensive information collection and control method can effectively avoid the occurrence of bad accidents and the recording of abnormal factors. In addition, a technical approach with low material and structure cost is developed, and the device is convenient to popularize and use.
Disclosure of Invention
The invention aims to provide a pressure-proof and separable fireproof data storage device and an information storage method for a lithium battery, which have the functions of extrusion early warning, falling-proof protection information storage and collection.
In order to achieve the purpose, the technical method adopted by the invention comprises the following steps:
the invention relates to a pressure-proof and separable fireproof data storage device of a lithium battery, which comprises,
the induction angle protectors are arranged at the four corners of the lithium battery and comprise a pressure sensor assembly, flame-retardant ultralight soil wrapping the pressure sensor assembly and the pressure sensor assembly;
the independent large-capacity storage device comprises a large-capacity storage card, a silica gel buffer layer, a ceramic heat-insulating fireproof layer and an outer metal layer, and is arranged in the center of one side face of the lithium battery;
the BMS battery control module is connected with the independent large-capacity storage device, the pressure sensor assembly and the lithium battery;
the input fuse is a temperature control fuse and is connected in series on a power supply circuit of the BMS battery control module, and when the temperature of the power supply circuit is abnormal, the power supply to the battery management system is cut off;
and the alarm device is connected with the BMS battery control module and sends out buzzing sound after receiving buzzing signals sent by the BMS battery control module.
Preferably, the lithium battery pack further comprises a temperature and humidity sensor, the temperature and humidity sensor is connected to the BMS battery control module, the temperature and humidity sensor collects and transmits temperature and humidity information in the lithium battery in real time, the temperature and humidity information is recorded in a large-capacity storage card through the BMS battery control module, and when the humidity value exceeds a normal range, the BMS battery control module quickly cuts off the input and output ports of the charging and discharging port of the lithium battery.
Further preferably, the system also comprises a BMU battery management module, and the temperature and humidity sensor and the pressure sensor assembly are connected with the BMS battery control module through the BMU battery management module.
Preferably, the pressure sensor assembly comprises a pressure sensitive element and a signal processing unit, when the pressure values of the four corners of the lithium battery are larger than the sensing range of the pressure sensitive element, the signal processing unit sends pressure signals to the BMU battery management module, and the BMU battery management module converts the pressure signals into electric signals and transmits the electric signals to the BMS battery control module.
Preferably, the flame-retardant ultralight soil is a high-molecular flame-retardant material, and the high-molecular flame-retardant material and the foaming powder are mixed and foamed to wrap the pressure sensor assembly to form the induction corner protector.
Further preferably, the ceramic heat-insulating and fireproof layer is a relatively compact ceramic heat-insulating and insulating material layer with the thickness of 1.5-2.0mm, and effectively isolates external high temperature and fire source. A
Further preferably, the mass memory card can store data collected for at least one year, and the mass memory card 9 can independently store the use data in the event of an adverse accident or fire and can ensure the safe storage of the data.
The information storage method of the pressure-proof and separable fireproof data storage device of the lithium battery comprises the following steps,
1) when the lithium battery is in use, the pressure sensor assembly senses ambient pressure at all times, and the temperature and humidity sensor collects temperature and humidity information of the battery pack in real time and transmits the sensed ambient pressure and temperature and humidity information to the BMU battery management module;
2) the BMU battery management module converts the environmental pressure and temperature and humidity information into electric signals and transmits the electric signals to the BMS battery control module;
3) the BMS battery control module analyzes the environmental pressure and temperature and humidity information and stores the data in a high-capacity memory card;
4) when the BMS battery control module analyzes that the environmental pressure and the temperature and humidity information deviate from the conventional values greatly, the BMS battery control module cuts off a charge and discharge port and an input and output port of the lithium battery, and a buzzer alarm sends out an alarm signal;
5) when the temperature control fuse detects that the environmental temperature is abnormal, the temperature control fuse is fused at high temperature, so that the power supply of the BMS battery control module is stopped, the internal loop of the battery pack is cut off, and the buzzer alarm sends out an alarm signal.
Further preferably, in step 1), when the lithium battery is strongly squeezed, collided or dropped during use, the sensing angle guards at the four corners of the lithium battery are squeezed, the sensing angle guards squeeze the internal pressure sensor assembly, the environment pressure and the temperature and humidity information transmitted by the pressure sensor assembly can be changed, and the changed environment pressure and temperature and humidity information contain the squeezing force.
Preferably, in step 1), the lithium battery is subjected to high temperature and flooding during use, and temperature and humidity data collected by the temperature and humidity sensor changes.
The invention has the advantages of extrusion early warning, falling prevention protection information collection, storage and alarm protection, temperature and humidity early warning, temperature and humidity protection information collection, storage and alarm protection, and can effectively avoid the occurrence of adverse accidents and the recording of abnormal factors by comprehensively collecting, storing and controlling the information in the operation of the lithium battery.
The data storage device of the product has the advantages of impact resistance, extrusion resistance, high temperature resistance, good waterproof effect, simple structure, low price and the like.
Drawings
FIG. 1 is a structural view of a lithium battery pressure-proof and separable fire-proof data storage device according to the present invention,
figure 2 is a cross-sectional view of a separate mass storage device in the lithium battery pressure proof and detachable fire proof data storage device of the present invention,
FIG. 3 is a connection diagram of the lithium battery voltage-proof and separable fireproof data storage device according to the present invention,
fig. 4 is a flow chart of an information storage method of the present invention.
Reference numerals:
in the drawings: 1. a BMS battery management system; 2. inducing a corner protector; 3. a pressure sensor assembly; 4. protecting the EVA cotton of the battery pack; 5. a stand-alone mass storage device; 6. an outer metal layer; 7. a ceramic heat-insulating fireproof layer; 8. a silica gel buffer layer; 9. a large-capacity memory card; 10. temperature control fuse, 11 lithium batteries.
Detailed Description
The following further describes the specific contents of the present invention:
the invention comprises a lithium battery voltage-proof and separable fireproof data storage device and an information storage method, wherein the lithium battery voltage-proof and separable fireproof data storage device is structurally shown in figure 1 and comprises an induction corner protector 2, an independent large-capacity storage device 5, a BMS battery control module and an input safety and alarm device. The BMS battery control module is connected to the independent mass storage device 5, the pressure sensor assembly 3, the lithium battery and the alarm device.
As shown in fig. 1, the induction angle bead 2 is arranged at four corners of the lithium battery, and each corner is provided with one induction angle bead 2. The induction corner protector 2 structure is composed of a pressure sensor assembly 3 and flame-retardant ultra-light soil wrapping the pressure sensor assembly 3, and the flame-retardant ultra-light soil covered outside is led out by the guide of the pressure sensor assembly 3 and then is connected to the lithium battery.
The flame-retardant ultralight soil is a high-molecular flame-retardant material, and the high-molecular flame-retardant material and foaming powder are mixed and foamed to wrap the pressure sensor assembly 3 to form the induction corner protector 2. The flame-retardant ultralight soil is a novel environment-friendly, nontoxic and tasteless high-molecular flame-retardant material, and has the characteristics of light weight, high elasticity, strong plasticity and the like. The expanded volume is larger after foaming, the specific gravity is very small, the battery pack is extremely light and is not easy to break, 4 induction angle protectors 2 are distributed on 4 corners of the lithium battery, deformation occurs when the battery pack is extruded or falls down from the outside, and the pressure sensor assembly 3 senses deformation occurrence force and is used for sensing the stress condition of the battery pack and transmitting stress signals to the outside.
The pressure sensor assembly 3 comprises a pressure sensitive element and a signal processing unit, when the pressure values of four corners of the lithium battery greatly exceed the sensing range of the pressure sensitive element, the pressure sensor assembly is strongly extruded, collided or dropped, the signal processing unit sends pressure signals to the BMU battery management module, and the BMU battery management module converts the pressure signals into electric signals and transmits the electric signals to the BMS battery control module. The BMS battery control module collects and stores information in an independent high-capacity storage device, and simultaneously, the BMS battery control module directly cuts off the input and output ports of the lithium battery;
as shown in fig. 1, the separate mass storage device 5 is disposed at the center of the upper side of the lithium battery, and as shown in fig. 2, the separate mass storage device 5 includes a mass storage card 9, a silica gel buffer layer 8, a ceramic heat-insulating and fire-proof layer 7, and an outer metal layer 6. The large-capacity memory card 9 can store data collected for at least one year, and the large-capacity memory card 9 can independently store the use data in case of a bad accident or a fire accident, and can ensure the safe storage of the data.
The outer metal layer is ensured to have enough impact resistance, extrusion resistance and high-temperature resistance and fire resistance through material selection, structural strength design and processing technology of the protective layer, and the structural integrity of the whole memory card is effectively ensured. The large-capacity memory card 9 is wrapped by the three-in-one protective layer, and can independently store the use data when an adverse accident or a fire accident occurs, so that the problem reason can be traced. The ceramic heat-insulating fireproof layer is a compact ceramic heat-insulating and insulating material layer, the thickness of the interlayer is 1.5-2.0mm, external high temperature and fire source can be effectively isolated, and the innermost silica gel buffer layer provides sealing protection for the memory card.
As shown in fig. 3, the lithium battery is further provided with a temperature and humidity sensor, the temperature and humidity sensor is connected to the BMS battery control module, the temperature and humidity sensor collects and transmits temperature and humidity information in the lithium battery in real time, and the temperature and humidity information is recorded in the large-capacity memory card 9 through the BMS battery control module, and when the humidity value exceeds a normal range, the BMS battery control module rapidly cuts off the input and output ports of the charge and discharge port of the lithium battery.
BMS battery control module is equipped with the input insurance red, and the input insurance is control by temperature change fuse 10, and it is established ties on BMS battery control module's power supply line, can effectively monitor ambient temperature simultaneously, and when the power supply line temperature was unusual, cut off the power supply to battery management system 1. The temperature control fuse can detect the self through a large current, can detect the environment temperature abnormity, and enables a metal wire or a metal sheet to generate high temperature to be fused, so that the BMS is stopped to supply power, an internal loop of the battery pack is cut off, and the adverse effect of the environment high temperature on the battery pack is effectively prevented.
The battery pack monitoring system is characterized by further comprising an alarm device, wherein the alarm device is connected with the BMS battery control module and sends out buzzing sound after receiving buzzing signals sent by the BMS battery control module.
The BMU battery management module is further included, and the temperature and humidity sensor and the pressure sensor assembly 3 are connected with the BMS battery control module through the BMU battery management module.
The method for information acquisition and storage of the pressure-proof and separable fireproof data storage device of the lithium battery, as shown in the flow chart of figure 4, comprises the following steps,
1) when the lithium battery is strongly extruded, collided or dropped when in use, the sensing angle bead at four corners of the lithium battery is extruded, the sensing angle bead extrudes the internal pressure sensor assembly, the pressure sensor assembly senses the ambient pressure constantly, the ambient pressure and the temperature and humidity information transmitted by the pressure sensor assembly outwards can change, and the changed ambient pressure and temperature and humidity information contain extrusion force.
Meanwhile, the temperature and humidity sensor collects temperature and humidity information of the battery pack in real time and transmits the sensed environmental pressure and temperature and humidity information to the BMU battery management module.
2) The BMU battery management module converts the environmental pressure and temperature and humidity information into electric signals and transmits the electric signals to the BMS battery control module;
3) the BMS battery control module analyzes the environmental pressure and temperature and humidity information and stores the data in a high-capacity memory card;
4) when the BMS battery control module analyzes that the environmental pressure and the temperature and humidity information deviate from the conventional values greatly, the BMS battery control module cuts off a charge and discharge port and an input and output port of the lithium battery, and a buzzer alarm sends out an alarm signal;
5) when the temperature control fuse detects that the environmental temperature is abnormal, the temperature control fuse is fused at high temperature, so that the power supply of the BMS battery control module is stopped, the internal loop of the battery pack is cut off, and the buzzer alarm sends out an alarm signal.
The invention has the advantages of extrusion early warning, falling prevention protection information collection, storage and alarm protection, temperature and humidity early warning, temperature and humidity protection information collection, storage and alarm protection, and can effectively avoid the occurrence of adverse accidents and the recording of abnormal factors by comprehensively collecting, storing and controlling the information in the operation of the lithium battery. The data storage device has the advantages of impact resistance, extrusion resistance, high temperature resistance, good waterproof effect, simple structure, low price and the like.
The lithium battery pack is preferably arranged by the cylindrical battery cell square support, but the arrangement and combination mode is not limited, the combination mode can be flexibly changed according to actual application and environmental change, and the lithium battery pack can be widely applied to customized lithium battery pack products such as children toys, medical equipment, electric tools, electric mobility scooter and the like.
Claims (10)
1. A pressure-proof and separable fireproof data storage device of a lithium battery is characterized by comprising,
the induction corner protectors (2) are arranged at the four corners of the lithium battery, and each induction corner protector (2) comprises a pressure sensor assembly (3), flame-retardant ultralight soil wrapping the pressure sensor assembly (3) and the pressure sensor assembly (3);
the independent large-capacity storage device (5) comprises a large-capacity memory card (9), a silica gel buffer layer (8), a ceramic heat-insulating fireproof layer (7) and an outer metal layer (6) from the inside to the outside, and the independent large-capacity storage device (5) is arranged in the center of one side face of the lithium battery;
the BMS battery control module is connected with the independent large-capacity storage device (5), the pressure sensor assembly (3) and the lithium battery;
the input fuse is a temperature control fuse (10) which is connected in series on a power supply circuit of the BMS battery control module, and cuts off power supply to the battery management system 1 when the temperature of the power supply circuit is abnormal;
and the alarm device is connected with the BMS battery control module and sends out buzzing sound after receiving buzzing signals sent by the BMS battery control module.
2. The lithium battery voltage-proof and separable fireproof data storage device according to claim 1, further comprising a temperature and humidity sensor, wherein the temperature and humidity sensor is connected to the BMS battery control module, the temperature and humidity sensor collects and transmits temperature and humidity information in the lithium battery in real time, the temperature and humidity information is recorded in the large-capacity memory card (9) through the BMS battery control module, and when the humidity value exceeds a normal range, the BMS battery control module rapidly cuts off the input/output port of the charge/discharge port of the lithium battery.
3. The lithium battery voltage-proof and separable fireproof data storage device according to claim 2, further comprising a BMU battery management module, wherein the temperature and humidity sensor and pressure sensor assembly (3) is connected with the BMS battery control module through the BMU battery management module.
4. The lithium battery voltage-proof and separable fire-proof data storage device as claimed in claim 3, wherein the pressure sensor assembly (3) comprises a pressure-sensitive element and a signal processing unit, when the pressure values at four corners of the lithium battery are greatly beyond the sensing range of the pressure-sensitive element, the signal processing unit sends a pressure signal to the BMU battery management module, and the BMU battery management module converts the pressure signal into an electric signal and transmits the electric signal to the BMS battery control module.
5. The lithium battery pressure-proof and separable fireproof data storage device as claimed in claim 3, wherein the flame-retardant ultra-light soil is a high molecular flame-retardant material, and the high molecular flame-retardant material is mixed with foaming powder to foam and wrap the pressure sensor assembly (3) to form the sensing angle bead (2).
6. The lithium battery voltage-proof and separable fireproof data storage device according to claim 1, wherein the ceramic heat-insulating fireproof layer (7) is a relatively dense ceramic heat-insulating and insulating material layer with a thickness of 1.5-2.0mm, and effectively isolates external high temperature and fire source.
7. The lithium battery voltage-proof and separable fireproof data storage device according to claim 1, wherein the large-capacity memory card (9) can guarantee storage of data collected for at least one year, and the large-capacity memory card (9) can independently store use data in case of an adverse accident or a fire accident, and can guarantee safe storage of the data.
8. The information storage method of the lithium battery pressure-proof and separable fireproof data storage device of claim 2, which comprises the steps of,
1) when the lithium battery is in use, the pressure sensor assembly (3) senses ambient pressure at all times, the temperature and humidity sensor collects temperature and humidity information of the battery pack in real time and transmits the sensed ambient pressure and temperature and humidity information to the BMU battery management module;
2) the BMU battery management module converts the environmental pressure and temperature and humidity information into electric signals and transmits the electric signals to the BMS battery control module;
3) the BMS battery control module analyzes the environmental pressure and temperature and humidity information and stores the data in a large-capacity memory card (9);
4) when the BMS battery control module analyzes that the environmental pressure and the temperature and humidity information deviate from the conventional values greatly, the BMS battery control module cuts off a charge and discharge port and an input and output port of the lithium battery, and a buzzer alarm sends out an alarm signal;
5) when the temperature control fuse (10) detects that the environmental temperature is abnormal, the fuse is fused at high temperature, so that the power supply of the BMS battery control module is stopped, the internal loop of the battery pack is cut off, and the buzzer alarm sends out an alarm signal.
9. The information storage method according to claim 8, wherein in the step 1), when the lithium battery is strongly squeezed, collided or dropped during use, the sensing angle guards (2) at the four corners of the lithium battery are squeezed, the sensing angle guards (2) squeeze the internal pressure sensor assembly (3), the environmental pressure and temperature and humidity information transmitted by the pressure sensor assembly (3) is changed, and the changed environmental pressure and temperature and humidity information includes the magnitude of squeezing force.
10. The information storage method as claimed in claim 8, wherein in step 1), the lithium battery is subjected to high temperature and flooding during use, and the temperature and humidity data from the temperature and humidity sensor are changed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111012130.3A CN113627582A (en) | 2021-08-31 | 2021-08-31 | Lithium battery pressure-proof and separable fireproof data storage device and information storage method |
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Cited By (1)
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