CN114069062A - Thermal runaway monitoring device, method and storage medium - Google Patents
Thermal runaway monitoring device, method and storage medium Download PDFInfo
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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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- H—ELECTRICITY
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- 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
- H01M10/4285—Testing apparatus
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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
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
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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
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Abstract
The embodiment of the application provides a thermal runaway monitoring devices, includes: the pressure monitoring chip, the physical interface transceiver and the early warning module; the pressure monitoring chip is electrically connected with the physical interface transceiver, and the early warning module is connected with the physical interface transceiver; the pressure monitoring chip comprises a microcontroller, a sensor, an analog-to-digital converter and a configuration unit; the configuration unit is electrically connected with the microcontroller; the sensor is electrically connected with the analog-to-digital converter, and the analog-to-digital converter is electrically connected with the microcontroller; the microcontroller is used for comparing the first information with preset configuration information, and when the preset configuration information does not contain the first information, the physical interface transceiver controls the early warning module to send out an early warning signal. The thermal runaway monitoring device provided by the embodiment of the application integrates the microcontroller, the sensor, the analog-to-digital converter and the configuration unit on the pressure monitoring chip, so that the thermal runaway monitoring device is small in size and convenient to install.
Description
Technical Field
The embodiment of the application relates to the field of batteries, in particular to a thermal runaway monitoring device, method and storage medium.
Background
With the development of new energy industry, lithium batteries are widely applied to electric vehicles. Under the condition of limited space, the development direction of the power battery is to further improve the energy density ratio, but when the battery with the high energy density ratio is charged and discharged, the temperature of the battery is too high due to improper operation or overlarge current, and if the battery is violently collided, a short circuit phenomenon occurs inside a battery core, and thermal runaway of the battery is very easily caused. The electric core spouts the valve and causes pressure variation to be an important characteristic in thermal runaway earlier stage in the battery package, uses pressure sensor early warning danger usually, and traditional forced induction module comprises power, MCU, pressure sensor, and is bulky, the installation of being not convenient for, and the cost is higher, and the consumption is great.
Disclosure of Invention
Embodiments of the present disclosure provide a thermal runaway monitoring device, method and storage medium to overcome the problems of the prior art.
In a first aspect, an embodiment of the present application provides a thermal runaway monitoring device, including:
the pressure monitoring chip, the physical interface transceiver and the early warning module;
the pressure monitoring chip is electrically connected with the physical interface transceiver, the early warning module is connected with the physical interface transceiver, the pressure monitoring chip is used for monitoring pressure information in the battery pack, the early warning module is used for sending out an early warning signal when the battery pack is out of control due to heat, and the pressure monitoring chip and the early warning module perform data conversion and transmission through the physical interface transceiver;
the pressure monitoring chip comprises a microcontroller, a sensor, an analog-to-digital converter and a configuration unit;
the configuration unit is electrically connected with the microcontroller and is used for storing preset configuration information;
the sensor is electrically connected with the analog-to-digital converter, the analog-to-digital converter is electrically connected with the microcontroller, the sensor is used for monitoring pressure information in the battery pack, and the analog-to-digital converter is used for acquiring the pressure information, converting the pressure information into first information and then sending the first information to the microcontroller;
the microcontroller is used for comparing the first information with preset configuration information, and when the preset configuration information does not contain the first information, the physical interface transceiver controls the early warning module to send out an early warning signal.
Optionally, in an embodiment of the present application, the pressure monitoring chip further includes a timer, and the timer is electrically connected to the microcontroller and is used for waking up the microcontroller periodically.
Optionally, in an embodiment of the present application, the thermal runaway monitoring device includes a normal operation mode and a low power consumption mode;
when the thermal runaway monitoring device is in a normal working mode, the timer wakes up the microcontroller at a first preset frequency, when the thermal runaway monitoring device is in a low power consumption mode, the timer wakes up the microcontroller at a second preset frequency, and the first preset frequency is greater than the second preset frequency.
Optionally, in an embodiment of the present application, the thermal runaway monitoring device further includes a first power supply module and a second power supply module, where the first power supply module is configured to supply power to the pressure monitoring chip, and the second power supply module is configured to supply power to the early warning module.
Optionally, in an embodiment of the present application, the warning signal includes at least one of a sound warning signal, a text warning signal, and a light warning signal.
Optionally, in an embodiment of the present application, the configuration unit is electrically connected to the microcontroller, and is configured to store preset configuration information, including:
sending preset configuration information to a configuration unit through a physical interface transceiver and a microcontroller;
and storing preset configuration information through the configuration unit.
In a second aspect, an embodiment of the present application provides a thermal runaway monitoring method, which is applied to a thermal runaway monitoring apparatus, and includes:
acquiring and storing preset configuration information input by a user;
acquiring pressure information in the battery pack at a preset frequency;
converting the pressure information into first information;
and comparing the first information with preset configuration information, and sending out an early warning signal when the preset configuration information does not contain the first information.
Optionally, in an embodiment of the present application, the obtaining of the pressure information in the battery pack at a preset frequency specifically includes:
when the thermal runaway monitoring device is in a normal working mode, pressure information in the battery pack is acquired at a first preset frequency, and when the thermal runaway monitoring device is in a low power consumption mode, the pressure information in the battery pack is acquired at a second preset frequency, wherein the first preset frequency is greater than the second preset frequency.
Optionally, in an embodiment of the present application, the warning signal includes at least one of a sound warning signal, a text warning signal, and a light warning signal.
In a third aspect, an embodiment of the present application provides a storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method according to any one of the second aspect is implemented.
The thermal runaway monitoring device provided by the embodiment of the application integrates the microcontroller, the sensor, the analog-to-digital converter and the configuration unit on the pressure monitoring chip, so that the thermal runaway monitoring device is small in size and convenient to install.
Drawings
Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic diagram of a thermal runaway monitoring device according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of another thermal runaway monitoring apparatus provided in an embodiment of the present application;
fig. 3 is a flowchart of a thermal runaway monitoring method according to an embodiment of the present application.
Description of reference numerals: the pressure monitoring system comprises a pressure monitoring chip 10, a physical interface transceiver 20, an early warning module 30, a microcontroller 101, a sensor 102, an analog-to-digital converter 103, a configuration unit 104 and a timer 105.
Detailed Description
The following further describes specific implementation of the embodiments of the present invention with reference to the drawings.
Example one
Referring to fig. 1, an embodiment of the present application provides a thermal runaway monitoring device, including:
the pressure monitoring chip 10, the physical interface transceiver 20 and the early warning module 30;
specifically, the pressure monitoring chip 10 may be an ASIC (Application Specific Integrated Circuit), which refers to an Integrated Circuit designed and manufactured according to the requirements of a Specific user and a Specific electronic system, and has the advantages of small size, low power consumption, high reliability, high performance, high security, low cost, and the like. The ASIC may be designed using a complex programmable logic device or a field programmable logic array, or may be designed using other methods, which are not limited in this application.
The Physical interface transceiver 20 may be a PHY (Port Physical Layer), which may include a PCS (Physical Coding Sublayer) that may add and decode information transmitted or received, and a PMD (Physical Media Dependent Sublayer). Optionally, in a specific embodiment, the physical interface transceiver 20 includes a MII/GMII (media independent interface) sublayer, a PCS (physical coding sublayer), a PMA (physical medium attachment) sublayer, a PMD (physical medium dependent) sublayer, and an MDI sublayer, and when transmitting data, 1bit of error detection code may be added every 4 bits, and then parallel data is converted into serial stream data, and then the data is encoded according to the encoding rule of the physical layer and then converted into an analog signal to transmit the data. When receiving data, the data can be decoded according to the decoding rule of the physical layer, serial stream data is converted into parallel data, and finally, the data is verified according to the error detection code. The physical interface transceiver 20 may also detect whether data is being transmitted on the network before transmitting the data, and wait if data is being transmitted, and wait a random time to send the data once the network is idle. Optionally, the physical interface transceiver 20 may also adjust the duty cycle with a certain driving capability and a certain frequency of Pulse Width Modulation (PWM) to convey numerical information.
The pressure monitoring chip 10 is electrically connected with the physical interface transceiver 20, the early warning module 30 is connected with the physical interface transceiver 20, the pressure monitoring chip 10 is used for monitoring pressure information in the battery pack, the early warning module 30 is used for sending out an early warning signal when the battery pack is out of control due to heat, and the pressure monitoring chip 10 and the early warning module 30 perform data conversion and transmission through the physical interface transceiver 20;
specifically, the pressure monitoring chip 10 monitors pressure information in the battery pack, and when the pressure information is monitored to be abnormal, sends a signal indicating that the pressure information is abnormal to the physical interface transceiver 20, and the physical interface transceiver 20 sends a control instruction to the early warning module 30 to control the early warning module 30 to send an early warning signal after receiving the signal indicating that the pressure information is abnormal, so that early warning of thermal runaway is timely performed on a user at an early stage of the thermal runaway, and accidents caused by the thermal runaway are effectively prevented.
The pressure monitoring chip 10 comprises a microcontroller 101, a sensor 102, an analog-to-digital converter 103 and a configuration unit 104;
specifically, the microcontroller 101, the sensor 102, the analog-to-digital converter 103, and the configuration unit 104 may be integrated on an ASIC, so that the size of the pressure monitoring chip 10 and the thermal runaway monitoring device may be reduced, and the installation may be facilitated. The microcontroller 101 may be an ARM core, such as an ARM-Cortex core or a 51 core, or may be other cores, which is not limited in this application.
The sensor 102 may monitor pressure information within the battery pack, which may be information directly indicative of pressure or indirectly indicative of pressure, such as temperature, voltage, current, etc. The sensor 102 may be an MSMS sensor, etc., and the application is not limited thereto.
The Analog-to-Digital Converter 103 may be an ADC circuit (Analog-to-Digital Converter), i.e., an Analog-to-Digital conversion circuit, which can convert an Analog signal of a continuous variable into a discrete Digital signal, and the Analog-to-Digital Converter 103 in this application can convert a pressure into a Digital physical quantity for storage, processing and transmission.
The configuration unit 104 is electrically connected with the microcontroller 101 and is used for storing preset configuration information;
specifically, the configuration unit 104 may be a memory, and a user may input data to the configuration unit 104 through the physical interface transceiver 20 and the microcontroller 101.
The sensor 102 is electrically connected with the analog-to-digital converter 103, the analog-to-digital converter 103 is electrically connected with the microcontroller 101, the sensor 102 is used for monitoring pressure information in the battery pack, and the analog-to-digital converter 103 is used for acquiring the pressure information, converting the pressure information into first information and then sending the first information to the microcontroller 101;
specifically, the sensor 102 sends the monitored pressure information in the battery pack to the analog-to-digital converter 103, where the pressure information may be information directly representing pressure or information indirectly representing pressure, such as temperature, voltage, current, and the like. The analog-to-digital converter 103 acquires pressure information, the pressure information is analog signals, the pressure information is converted into first information, the first information is digital information, and the first information is sent to the microcontroller 101, so that the thermal runaway monitoring device can monitor the thermal runaway more accurately.
The microcontroller 101 is configured to compare the first information with preset configuration information, and control the early warning module 30 to send an early warning signal through the physical interface transceiver 20 when the preset configuration information does not include the first information.
Specifically, the preset configuration information may be pressure information in the battery pack when the battery normally works, and may be a range interval, and when the range interval does not contain the pressure information of the current battery pack indicated by the first information, it indicates that the pressure in the current battery pack is too large, that is, the battery has thermal runaway, and at this time, the physical interface transceiver 20 controls the early warning module 30 to send out an early warning signal, so as to timely perform early warning of thermal runaway for the user, thereby avoiding occurrence of thermal runaway accidents.
Referring to fig. 2, optionally, in an embodiment of the present application, the pressure monitoring chip 10 further includes a timer 105, where the timer 105 is electrically connected to the microcontroller 101 and is used for waking up the microcontroller 101 at regular time;
if the pressure monitoring chip 10 is always in the wake-up state, the power consumption of the thermal runaway monitoring module is large, and the timer 105 wakes up the pressure monitoring chip 10 regularly, so that the power consumption of the thermal runaway monitoring module can be reduced while the thermal runaway is monitored timely.
Optionally, in an embodiment of the present application, the thermal runaway monitoring device includes a normal operation mode and a low power consumption mode;
when the thermal runaway monitoring device is in the normal operating mode, the timer 105 wakes up the microcontroller 101 at a first preset frequency, and when the thermal runaway monitoring device is in the low power consumption mode, the timer 105 wakes up the microcontroller 101 at a second preset frequency, where the first preset frequency is greater than the second preset frequency.
Specifically, the thermal runaway monitoring module can be set to a normal working mode in the normal running process, and the thermal runaway monitoring module is set to a low power consumption mode when the vehicle stops, so that the reduction of the power consumption of the thermal runaway monitoring module is facilitated.
The first preset frequency and the second preset frequency can be numerical values set manually according to actual needs, and the first preset frequency and the second preset frequency are not limited in the application.
Optionally, in an embodiment of the present application, the thermal runaway monitoring device further includes a first power supply module and a second power supply module, where the first power supply module is configured to supply power to the pressure monitoring chip 10, and the second power supply module is configured to supply power to the early warning module 30.
Thus, the mutual interference between the pressure monitoring chip 10 and the early warning module 30 can be avoided.
Optionally, in an embodiment of the present application, the warning signal includes at least one of a sound warning signal, a text warning signal, and a light warning signal.
Specifically, the early warning module 30 may be a buzzer, and the sound early warning signal may be a sound signal sent by the buzzer, or may be a voice prompt of the center console of the automobile; the early warning module 30 may also be an alarm lamp, and the light early warning signal may be a light signal emitted by the alarm lamp; the early warning module 30 may also be a display screen of a center console of an automobile, and the text early warning signal may be a text signal displayed on the display screen. Of course, the warning signal may also be a combination of two or more of the above signals, or a combination of the above signals, which is not limited in this application.
Optionally, in an embodiment of the present application, the configuration unit 104 is electrically connected to the microcontroller 101, and is configured to store preset configuration information, including:
sending the preset configuration information to the configuration unit 104 through the physical interface transceiver 20 and the microcontroller 101;
preset configuration information is stored by the configuration unit 104.
Specifically, the user can customize the required preset configuration information according to actual needs, and input the preset configuration information into the configuration unit 104 through the physical interface transceiver 20 and the microcontroller 101, so that different preset configuration information can be set according to different actual conditions, and the accuracy of the thermal runaway monitoring device for judging the thermal runaway is improved.
Example two
Referring to fig. 3, an embodiment of the present application provides a thermal runaway monitoring method applied to a thermal runaway monitoring apparatus, including:
s201: acquiring and storing preset configuration information input by a user;
specifically, the preset configuration information input by the user may be acquired through the physical interface transceiver 20 and the microcontroller 101, and the preset configuration information may be stored through the configuration unit 104.
S202: acquiring pressure information in the battery pack at a preset frequency;
optionally, in an embodiment of the present application, the obtaining of the pressure information in the battery pack at a preset frequency specifically includes:
when the thermal runaway monitoring device is in a normal working mode, pressure information in the battery pack is acquired at a first preset frequency, and when the thermal runaway monitoring device is in a low power consumption mode, the pressure information in the battery pack is acquired at a second preset frequency, wherein the first preset frequency is greater than the second preset frequency.
Specifically, the pressure information in the battery pack may be obtained by the sensor 102 at a preset frequency, and the sensor 102 may be a pressure sensor, which is not limited in this application. The thermal runaway monitoring module can be set to be in a normal working mode in the normal running process, and the thermal runaway monitoring module is set to be in a low power consumption mode when the vehicle stops, so that the reduction of the power consumption of the thermal runaway monitoring module is facilitated. The first preset frequency and the second preset frequency can be numerical values set manually according to actual needs, and the first preset frequency and the second preset frequency are not limited in the application.
S203: converting the pressure information into first information;
specifically, the pressure information may be converted into the first information by the analog-to-digital converter 103. The sensor 102 sends the monitored pressure information in the battery pack to the analog-to-digital converter 103, the analog-to-digital converter 103 collects the pressure information, the pressure information is analog signals and is converted into first information, the first information is digital information, and the first information is sent to the microcontroller 101.
And S204, comparing the first information with preset configuration information, and sending out an early warning signal when the preset configuration information does not contain the first information.
Specifically, the preset configuration information may be pressure information in the battery pack when the battery normally works, and may be a range interval, and when the range interval does not contain the pressure information of the current battery pack indicated by the first information, it indicates that the pressure in the current battery pack is too large, that is, the battery has thermal runaway, and at this time, the physical interface transceiver 20 controls the early warning module 30 to send out an early warning signal, so as to timely perform early warning of thermal runaway for the user, thereby avoiding occurrence of thermal runaway accidents.
Optionally, in an embodiment of the present application, the warning signal includes at least one of a sound warning signal, a text warning signal, and a light warning signal.
Specifically, the sound early warning signal may be a sound signal emitted by a buzzer or a voice prompt of an automobile center console; the light early warning signal can be a light signal sent by an alarm lamp; the text early warning signal can be a text signal displayed on a display screen of an automobile center console. Of course, the warning signal may also be a combination of two or more of the above signals, or a combination of the above signals, which is not limited in this application.
EXAMPLE III
The embodiment of the application provides a storage medium, wherein an application program, or firmware and configuration information are stored on the storage medium, and when a processor executes the application program or a microcontroller executes the firmware and the configuration information, the method as in any one of the two embodiments is realized.
The storage medium, the configuration unit 104 or the microcontroller 101 of the embodiment of the present application may exist in various forms, including but not limited to:
(1) e flash or EEPROM, etc.
(2) And other electronic components with data processing and interaction functions.
(3) And other electronic equipment with data interaction function.
Thus, particular embodiments of the present subject matter have been described. Other embodiments are within the scope of the following claims. In some cases, the actions recited in the claims can be performed in a different order and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may be advantageous.
The controller may be implemented in any suitable manner, for example, it may take the form of a microprocessor or processor and a readable medium storing program code (e.g., software or firmware) executable by the (micro) processor, logic gates, switches, application specific integrated circuits, programmable logic controllers, and embedded microcontrollers, or even an apparatus implementing various functions that may be viewed as a structure within both a software module and a hardware component implementing the method.
For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A thermal runaway monitoring device, comprising:
the pressure monitoring chip, the physical interface transceiver and the early warning module;
the pressure monitoring chip is electrically connected with the physical interface transceiver, the early warning module is connected with the physical interface transceiver, the pressure monitoring chip is used for monitoring pressure information in the battery pack, the early warning module is used for sending out an early warning signal when the battery pack is out of control due to heat, and the pressure monitoring chip and the early warning module perform data conversion and transmission through the physical interface transceiver;
the pressure monitoring chip comprises a microcontroller, a sensor, an analog-to-digital converter and a configuration unit;
the configuration unit is electrically connected with the microcontroller and is used for storing preset configuration information;
the sensor is electrically connected with the analog-to-digital converter, the analog-to-digital converter is electrically connected with the microcontroller, the sensor is used for monitoring pressure information in the battery pack, and the analog-to-digital converter is used for acquiring the pressure information, converting the pressure information into first information and then sending the first information to the microcontroller;
the microcontroller is configured to compare the first information with the preset configuration information, and control the early warning module to output an early warning signal through the physical interface transceiver when the preset configuration information does not include the first information.
2. The device of claim 1, wherein the pressure monitoring chip further comprises a timer electrically connected to the microcontroller for periodically waking up the microcontroller.
3. The apparatus of claim 2, wherein the thermal runaway monitoring device comprises a normal operating mode and a low power consumption mode;
when the thermal runaway monitoring device is in a normal working mode, the timer wakes up the microcontroller at a first preset frequency, when the thermal runaway monitoring device is in a low power consumption mode, the timer wakes up the microcontroller at a second preset frequency, and the first preset frequency is greater than the second preset frequency.
4. The device of claim 1, wherein the thermal runaway monitoring device further comprises a first power supply module and a second power supply module, the first power supply module is configured to supply power to the pressure monitoring chip, and the second power supply module is configured to supply power to the early warning module.
5. The apparatus of claim 1, wherein the warning signal comprises at least one of an audible warning signal, a textual warning signal, and a light warning signal.
6. The apparatus of claim 1, wherein the configuration unit is electrically connected to the microcontroller for storing preset configuration information, comprising:
sending the preset configuration information to the configuration unit through the physical interface transceiver and the microcontroller;
and storing the preset configuration information through the configuration unit.
7. A thermal runaway monitoring method is applied to a thermal runaway monitoring device and is characterized by comprising the following steps:
acquiring and storing preset configuration information input by a user;
acquiring pressure information in the battery pack at a preset frequency;
converting the pressure information into first information;
and comparing the first information with the preset configuration information, and sending out an early warning signal when the preset configuration information does not contain the first information.
8. The method according to claim 7, wherein the pressure information in the battery pack is obtained at a predetermined frequency, specifically:
when the thermal runaway monitoring device is in a normal working mode, pressure information in the battery pack is acquired at a first preset frequency, and when the thermal runaway monitoring device is in a low power consumption mode, the pressure information in the battery pack is acquired at a second preset frequency, wherein the first preset frequency is greater than the second preset frequency.
9. The method of claim 7, wherein the alert signal comprises at least one of an audible alert signal, a textual alert signal, and a light alert signal.
10. A storage medium, characterized in that the storage medium has stored thereon a computer program which, when executed by a processor, carries out the method according to any one of claims 7-9.
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