CN113984312A - Safety control method and safety control system for battery vibration test - Google Patents
Safety control method and safety control system for battery vibration test Download PDFInfo
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- CN113984312A CN113984312A CN202111268106.6A CN202111268106A CN113984312A CN 113984312 A CN113984312 A CN 113984312A CN 202111268106 A CN202111268106 A CN 202111268106A CN 113984312 A CN113984312 A CN 113984312A
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- 238000012360 testing method Methods 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000003745 diagnosis Methods 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000007921 spray Substances 0.000 claims abstract description 14
- 230000007613 environmental effect Effects 0.000 claims abstract description 10
- 239000000779 smoke Substances 0.000 claims description 34
- 238000001514 detection method Methods 0.000 claims description 22
- 238000005507 spraying Methods 0.000 claims description 19
- 239000000178 monomer Substances 0.000 claims description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 9
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/022—Vibration control arrangements, e.g. for generating random vibrations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/027—Specimen mounting arrangements, e.g. table head adapters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
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Abstract
The invention discloses a safety control method and a safety control system for a battery vibration test, and belongs to the technical field of batteries. The invention relates to a safety control method and a safety control system for a battery vibration test, which comprises the following steps: acquiring parameter information of a BMS system of a battery; acquiring state information of a battery; acquiring environmental temperature information of a laboratory; diagnosing the battery according to the parameter information, the state information of the battery and the laboratory environment temperature information to obtain a diagnosis result; according to the diagnosis result, whether to loosen the clamp, whether to close the vibration device, whether to give an alarm, and whether to spray water to the battery are selected. In the battery vibration test process, the state and parameters of the battery are automatically monitored in real time, and when the battery has potential safety hazards, the clamp can be automatically loosened, so that the aim of quickly detaching the battery from the vibration equipment can be fulfilled; compared with the prior art, in the whole test process, the on-duty of the tester is not needed, and the personal safety of the tester is protected.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a safety control method and a safety control system for a battery vibration test.
Background
The vibration test is an important link for inspecting the quality of the battery product in the research and development process of the battery product. In the prior art, in the vibration test of the battery, the battery needs to be fixed on a vibration table top of vibration equipment by using a clamp, and a tester needs to be watched in the whole test process and check the state of the battery in real time, so that the battery can be found in time when a dangerous case occurs. The test method cannot ensure the safety of test personnel and equipment, and has great potential safety hazard.
Disclosure of Invention
The invention aims to provide a safety control method and a safety control system for a battery vibration test, so as to improve the safety of the battery vibration test.
In order to realize the purpose, the following technical scheme is provided:
in one aspect, a safety control method for a battery vibration test is provided, in which a vibration device is used to perform the vibration test on a battery, the vibration device includes at least one clamp for clamping the battery, and the safety control method includes the following steps:
acquiring parameter information of a BMS system of the battery; the parameter information comprises a thermal runaway signal, maximum voltage and minimum voltage, total pressure, all monomer temperatures and all monomer voltages;
acquiring state information of the battery; the status information includes a temperature of the battery and whether the battery generates smoke;
acquiring environmental temperature information of a laboratory;
diagnosing the battery according to the parameter information, the state information of the battery and the laboratory environment temperature information to obtain a diagnosis result;
and according to the diagnosis result, selecting whether to loosen the clamp, close the vibration equipment, send out an alarm and spray water to the battery.
As an alternative to the safety control method, among the selection of whether to release the clamp, whether to turn off the vibration device, whether to issue an alarm, and whether to spray water to the battery, according to the diagnosis result, the safety control method further includes the steps of:
the diagnostic result is a first result, a second result, or a third result;
if the battery is in the first result, giving an alarm and closing the vibration equipment;
if the battery is in the second result, giving an alarm, closing the vibration equipment and loosening the clamp;
and if the battery is in the third result, giving an alarm, closing the vibration equipment, loosening the clamp and spraying water to the battery.
As an alternative to the safety control method, in acquiring the state information of the battery, the safety control method further includes the steps of:
and carrying out smoke detection on the first position and the second position of the battery.
As an alternative to the safety control method, when the battery is in the first result, the cell temperature signal is lost, the cell voltage signal is lost, the maximum voltage fluctuation exceeds ± 0.05V, the minimum voltage fluctuation exceeds ± 0.05V, the total voltage fluctuation exceeds ± 3V, or the total voltage signal is lost;
obtaining the thermal runaway signal, the battery producing smoke, the temperature of the battery, and the laboratory temperature differential all exceeding 50 ℃ or the temperature of the battery exceeding 60 ℃ when the battery is at the second result;
when the battery is in the third result, the temperature of the battery exceeds 60 ℃ and smoke is generated at both position one and position two of the battery, the thermal runaway signal is obtained and smoke is generated at position one or position two, the thermal runaway signal is obtained and the temperature of the battery exceeds 60 ℃, the temperature of the battery exceeds 60 ℃ while smoke is generated at both position one and position two of the battery and the thermal runaway signal is obtained.
As an alternative to the safety control method, the safety control method further comprises the steps of:
manually controlling the clamp to clamp again, controlling the vibration device to start again, controlling the alarm to be relieved and/or controlling the water spraying to the battery to stop.
As an alternative to the safety control method, in acquiring the state information of the battery, the state information further includes whether the battery generates carbon monoxide and/or whether the battery generates combustible gas.
In another aspect, there is provided a safety control system for a battery vibration test, based on the safety control method as described in any one of the above, the safety control system including:
the information acquisition module is used for acquiring parameter information of a BMS system of the battery; the parameter information comprises a thermal runaway signal, maximum voltage and minimum voltage, total pressure, all monomer temperatures and all monomer voltages;
the state detection module is used for acquiring the state information of the battery; the status information includes a temperature of the battery and whether the battery generates smoke;
the temperature detection module is used for acquiring the environmental temperature information of the laboratory;
the diagnosis module is used for diagnosing the battery according to the parameter information, the state information of the battery and the laboratory environment temperature information to obtain a diagnosis result;
an alarm for issuing an alarm;
the spraying device is used for spraying water to the battery;
and the automatic control module is used for selecting whether to loosen the clamp, close the vibration equipment, start the alarm and start the spraying device according to the diagnosis result.
As an alternative to the safety control system, the safety control system further comprises a manual control module for manually controlling the clamp to clamp again, controlling the vibration device to start again, controlling the alarm to close and/or controlling the spray device to close.
As an alternative to the safety control system, the condition detection module comprises a temperature sensor and a smoke sensor.
As an alternative to the safety control system, the status detection module further comprises a carbon monoxide sensor and/or a combustible gas sensor.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a safety control method and a safety control system for a battery vibration test, which comprises the following steps: acquiring parameter information of a BMS system of a battery; the parameter information comprises a thermal runaway signal, maximum voltage and minimum voltage, total pressure, all monomer temperature and all monomer voltage; acquiring state information of a battery; the state information comprises the temperature of the battery and whether the battery generates smoke or not; acquiring environmental temperature information of a laboratory; diagnosing the battery according to the parameter information, the state information of the battery and the laboratory environment temperature information to obtain a diagnosis result; according to the diagnosis result, whether to loosen the clamp, whether to close the vibration device, whether to give an alarm, and whether to spray water to the battery are selected. In the battery vibration test process, the state and the parameter of real-time automatic monitoring battery, when there is the potential safety hazard in the battery, anchor clamps can loosen automatically, can reach the purpose of dismantling the battery from vibrating equipment fast to shift to the safety zone fast with the battery that has the potential safety hazard, in addition, still can close vibrating equipment, send out the police dispatch newspaper and spray water to the battery, can further improve battery vibration test security. In addition, compared with the prior art, in the whole test process, the on-duty of the tester is not needed, and the personal safety of the tester is protected.
Drawings
Fig. 1 is a flowchart of a safety control method for a battery vibration test in embodiment 1 of the present invention;
fig. 2 is a structural diagram of a safety control system for a battery vibration test in embodiment 2 of the present invention.
Reference numerals:
1. an information acquisition module; 2. a state detection module; 3. a temperature detection module; 4. a diagnostic module; 5. an automatic control module; 6. an alarm; 7. a spraying device; 100. a vibrating device; 200. and (4) clamping.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Example 1
As shown in fig. 1, the present embodiment provides a safety control method for a battery vibration test, in which a vibration device is used to perform the vibration test on a battery, the vibration device includes at least one clamp for clamping the battery, and the safety control method includes the following steps:
s110, acquiring parameter information of a BMS system of the battery; the parameter information includes a thermal runaway signal, maximum and minimum voltages, total pressure, all cell temperatures, and all cell voltages.
The BMS system of the battery can monitor the state of the battery in real time, and comprises the voltage of the battery and the voltage and the temperature of all the monomers, and can monitor whether the battery is out of thermal runaway or not, and report a thermal runaway signal when the battery is out of thermal runaway.
S120, acquiring state information of the battery; the status information includes the temperature of the battery and whether the battery generates smoke.
In order to monitor the state of the battery more comprehensively in the vibration test process, the temperature of the battery and whether the battery generates smoke need to be monitored, and the battery is over-high in temperature or generates smoke, which indicates that potential safety hazards exist in the battery. Specifically, two different positions can be selected on the battery and respectively recorded as a first position and a second position, and the first position and the second position of the battery are subjected to smoke detection so as to more accurately judge the danger level of the battery. If smoke is generated at the first position and the second position, the situation that the battery is abnormal and the danger level is high is indicated, and the situation needs to be dealt with as soon as possible, so that the safety of testing personnel and equipment is prevented from being threatened. Preferably, the distance between the first position and the second position is greater than 1m, so as to avoid that the two positions are too close to each other, which is easy to generate interference and cause misjudgment.
In addition, when the battery fails, carbon monoxide and combustible gas are generated, and in other embodiments, in the step of acquiring the state information of the battery, the state information further includes whether the battery generates carbon monoxide or not and whether the battery generates combustible gas or not, so as to further monitor the state of the battery comprehensively.
And S130, acquiring the environmental temperature information of the laboratory.
In the vibration test process, the heating of the battery can increase the environmental temperature of the laboratory, and the environmental temperature of the laboratory is monitored so as to be used as a reference.
And S140, diagnosing the battery according to the parameter information, the state information of the battery and the laboratory environment temperature information to obtain a diagnosis result.
Parameter information, state information and laboratory ambient temperature information of the BMS system of the battery are integrated, the state of the battery in the vibration test process can be comprehensively monitored, and the danger level of the battery can be accurately judged.
S150, selecting whether to loosen the clamp, close the vibration equipment, send an alarm and spray water to the battery according to the diagnosis result.
Wherein the diagnosis result is the first result, the second result or the third result. Specifically, if the battery is in the first result, the danger level of the battery is low, only an alarm needs to be given and the vibration equipment needs to be closed, so that a tester is prompted to check the battery, the fault reason is checked, the test can be continued by eliminating the fault, and if the fault cannot be solved, the test needs to be suspended. If the battery is in the second result, the danger level of the battery is moderate, and in order to ensure the safety of testing personnel, an alarm is sent out, the vibration equipment is closed, and the clamp is loosened, so that the battery is transferred to a safety area at the first time on the premise of ensuring the safety of personnel, and the fault reason is checked. If the battery is in the third result and the danger level of the battery is high, an alarm needs to be sent out, the vibration equipment needs to be closed, the clamp needs to be loosened, the water is sprayed on the battery, then fire fighting and personnel evacuation are organized according to the test site condition, and the battery is transferred to a safety area as soon as possible on the premise that the safety of the personnel and the equipment is guaranteed.
Specifically, when the battery is in the first result, the battery only has the problems of single temperature signal loss, single voltage signal loss, maximum voltage fluctuation exceeding +/-0.05V, minimum voltage fluctuation exceeding +/-0.05V, total voltage fluctuation exceeding +/-3V or total voltage signal loss; when the battery is in the second result, obtaining a thermal runaway signal, generating smoke by the battery, and obtaining the conditions that the temperature difference of the battery and the laboratory temperature exceeds 50 ℃ or the temperature difference of the battery exceeds 60 ℃, and the battery generates heat and generates smoke, even generates thermal runaway; when the battery is in the third result, the temperature of the battery exceeds 60 ℃, smoke is generated at the first position and the second position of the battery, a thermal runaway signal is obtained, smoke is generated at the first position or the second position, the thermal runaway signal is obtained, the temperature of the battery exceeds 60 ℃, smoke is generated at the first position and the second position of the battery, the thermal runaway signal is obtained, and the battery has great potential safety hazard.
The safety control method for the battery vibration test provided by the embodiment automatically monitors the state and parameters of the battery in real time in the battery vibration test process, when the battery has potential safety hazards, the clamp can be automatically loosened, the purpose of rapidly detaching the battery from the vibration equipment can be achieved, so that the battery with the potential safety hazards can be rapidly transferred to a safety area, in addition, the vibration equipment can be closed, an alarm is given out, water is sprayed to the battery, and the safety of the battery vibration test can be further improved. In addition, compared with the prior art, in the whole test process, the on-duty of the tester is not needed, and the personal safety of the tester is protected.
Further, the safety control method for the battery vibration test further includes: and manually controlling the clamp to clamp again, controlling the vibration equipment to start again, controlling the alarm to be relieved and controlling the water spraying to stop.
In the vibration test process, if the test is stopped due to the fault of the battery, when the fault is solved, the test is required to be continuously carried out, and the clamp can be manually controlled to clamp again, the vibration equipment is controlled to start again, the alarm is controlled to be relieved, and the water spraying to the battery is controlled to stop. In addition, the continuous test is set as manual control, so that the problem that the experimenter does not find due to automatic fault elimination can be avoided, and the quality of the battery can be accurately tested through the vibration test.
Example 2
As shown in fig. 2, the present embodiment provides a safety control system for a battery vibration test, which can perform the safety control method for a battery vibration test described in the above embodiment; the battery vibration test method comprises the steps that vibration equipment 100 is adopted to carry out vibration test on a battery, the vibration equipment 100 comprises at least one clamp 200 used for clamping the battery, a safety control system comprises an information acquisition module 1, a state detection module 2, a temperature detection module 3, a diagnosis module 4, an automatic control module 5, an alarm 6 and a spraying device 7, and the information acquisition module 1 is used for acquiring parameter information of a BMS system of the battery; the parameter information comprises a thermal runaway signal, maximum voltage and minimum voltage, total pressure, all monomer temperature and all monomer voltage; the state detection module 2 is used for acquiring the state information of the battery; the state information comprises the temperature of the battery and whether the battery generates smoke or not; the temperature detection module 3 is used for acquiring the environmental temperature information of the laboratory; the diagnosis module 4 is used for diagnosing the battery according to the parameter information, the state information of the battery and the laboratory environment temperature information to obtain a diagnosis result; the alarm 6 is used for giving an alarm; the spraying device 7 is used for spraying water to the battery; the automatic control module 5 is used for selecting whether to release the clamp 200, whether to turn off the vibration device 100, whether to start the alarm 6 and whether to start the spraying device 7 according to the diagnosis result. Further, the state detection module 2 includes a first temperature sensor and a smoke sensor. The temperature detection module 3 includes a second temperature sensor.
It can be understood that the information acquisition module 1, the state detection module 2, and the temperature detection module 3 are respectively connected to the diagnosis module 4 through signal lines, the diagnosis module 4 is connected to the automatic control module 5 through signal lines, and the control module is respectively connected to the vibration device 100, the clamp 200, the alarm 6, and the spraying apparatus 7 through signal lines.
Specifically, the information acquisition module 1 can acquire parameter information of the BMS system of the battery and transmit the parameter information to the diagnosis module 4; the first temperature sensor can collect the temperature on the surface or inside of the battery and transmit the temperature to the diagnosis module 4; the smoke sensor can detect whether the battery generates smoke or not and transmit the information to the diagnosis module 4; the second temperature sensor can detect the ambient temperature of the laboratory and transmit the information to the diagnostic module 4; then, the diagnosis module 4 judges whether the battery is in the first result, the second result or the third result according to the above information, and transmits the three structures to the automatic control module 5. If the battery is in the first result, the danger level of the battery is low, the automatic control module 5 only needs to control the alarm 6 to be started and control the vibration equipment 100 to be closed, a tester is prompted to check the battery, the fault reason is checked, the test can be continued by eliminating the fault, and if the fault cannot be solved, the test needs to be suspended. If the battery is in the second result, the danger level of the battery is moderate, and in order to ensure the safety of the testing personnel, the automatic control module 5 needs to control the alarm 6 to be started, control the vibration equipment 100 to be closed and control the clamp 200 to be loosened, so that the battery can be transferred to a safety area at the first time to investigate the fault reason on the premise of ensuring the safety of the personnel. If the battery is in the third result and the danger level of the battery is high, the automatic control module 5 needs to control the alarm 6 to be started, control the vibration device 100 to be closed, control the clamp 200 to be loosened, control the spray device 7 to be started, organize fire fighting and personnel evacuation according to the test site conditions, and transfer the battery to a safety area as soon as possible on the premise of ensuring the safety of the personnel and the equipment.
Further, the first temperature sensor is provided with two, wherein one temperature sensor is arranged inside the battery to detect the temperature inside the battery, and the other temperature sensor is arranged on the surface of the battery to detect the temperature on the surface of the battery.
Optionally, the number of the smoke sensors is two, the two smoke sensors are arranged above the battery and are 50cm away from the upper surface of the battery, or are arranged near the battery pressure release valve, and the interval between the two smoke sensors is more than 1m, so that misjudgment caused by interference is avoided.
In other embodiments, the status detection module 2 further includes a carbon monoxide sensor and a combustible gas sensor. The carbon monoxide sensor can detect whether the battery generates carbon monoxide or not and transmit the information to the diagnosis module 4; the combustible gas sensor can detect whether the battery generates combustible gas or not and transmit the information to the diagnosis module 4, so that the diagnosis module 4 can further comprehensively diagnose the state of the battery in the test process.
It can be understood that, in order to realize automatic control, the clamp 200 is driven by the electric driving part, that is, the automatic control module 5 only needs to control the electric driving part to act, so as to drive the clamp 200 to hold the battery tightly, and the automatic control module 5 can also control the direction of the electric driving part to act, so as to drive the clamp 200 to loosen the battery.
The diagnostic module 4 and the automatic control module 5 may be described as being combined as an automatic controller, illustratively, a PLC, and relays are provided between the PLC and the vibration device 100, the clamp 200, the alarm 6, and the spray device 7 to achieve control. Illustratively, the information acquisition module 1 is a CAN box to perform online monitoring of the BMS system of the battery and to realize information transceiving. The PLC and the CAN box are both mature prior art, and are not described herein again.
Optionally, the safety control system for the battery vibration test further comprises a display, the display is connected to the automatic control module 5 through a signal line, and the display can display the fault type of the battery and can also display the control instruction and the processing suggestion sent by the automatic control module 5 (for example, the battery is transferred to the safety zone as soon as possible).
Optionally, the safety control system further comprises a manual control module for manually controlling the clamp 200 to clamp again, controlling the vibration device 100 to start again, controlling the alarm 6 to turn off, and controlling the spray device 7 to turn off. The safety control system for the battery vibration test may have false alarm to stop the vibration test, and at this time, the control instruction sent by the automatic control module 5 can be manually cancelled through the manual control module, so that the vibration test is continuously performed.
Alternatively, the spraying device 7 may be any device as long as it can spray water to the battery, and the specific structure thereof is not limited herein.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A safety control method for a battery vibration test is characterized in that a vibration device is adopted to carry out the vibration test on the battery, the vibration device comprises at least one clamp used for clamping the battery, and the safety control method comprises the following steps:
acquiring parameter information of a BMS system of the battery; the parameter information comprises a thermal runaway signal, maximum voltage and minimum voltage, total pressure, all monomer temperatures and all monomer voltages;
acquiring state information of the battery; the status information includes a temperature of the battery and whether the battery generates smoke;
acquiring environmental temperature information of a laboratory;
diagnosing the battery according to the parameter information, the state information of the battery and the laboratory environment temperature information to obtain a diagnosis result;
and according to the diagnosis result, selecting whether to loosen the clamp, close the vibration equipment, send out an alarm and spray water to the battery.
2. The safety control method according to claim 1, wherein among the selection of whether to release the clamp, whether to turn off the vibration device, whether to issue an alarm, and whether to spray water to the battery according to the diagnosis result, the safety control method further comprises the steps of:
the diagnostic result is a first result, a second result, or a third result;
if the battery is in the first result, giving an alarm and closing the vibration equipment;
if the battery is in the second result, giving an alarm, closing the vibration equipment and loosening the clamp;
and if the battery is in the third result, giving an alarm, closing the vibration equipment, loosening the clamp and spraying water to the battery.
3. The safety control method according to claim 2, wherein in acquiring the state information of the battery, the safety control method further comprises the steps of:
and carrying out smoke detection on the first position and the second position of the battery.
4. The safety control method according to claim 3, wherein the cell temperature signal loss, the cell voltage signal loss, the maximum voltage fluctuation exceeding ± 0.05V, the minimum voltage fluctuation exceeding ± 0.05V, the total voltage fluctuation exceeding ± 3V, or the total voltage signal loss when the battery is in the first result;
obtaining the thermal runaway signal, the battery producing smoke, the temperature of the battery, and the laboratory temperature differential all exceeding 50 ℃ or the temperature of the battery exceeding 60 ℃ when the battery is at the second result;
when the battery is in the third result, the temperature of the battery exceeds 60 ℃ and smoke is generated at both position one and position two of the battery, the thermal runaway signal is obtained and smoke is generated at position one or position two, the thermal runaway signal is obtained and the temperature of the battery exceeds 60 ℃, the temperature of the battery exceeds 60 ℃ while smoke is generated at both position one and position two of the battery and the thermal runaway signal is obtained.
5. The safety control method according to claim 1, characterized by further comprising the steps of:
manually controlling the clamp to clamp again, controlling the vibration device to start again, controlling the alarm to be relieved and/or controlling the water spraying to the battery to stop.
6. The safety control method according to claim 1, wherein in acquiring the state information of the battery, the state information further includes whether the battery generates carbon monoxide and/or whether the battery generates a combustible gas.
7. A safety control system for a battery vibration test, characterized in that the safety control system includes, based on the safety control method according to any one of claims 1 to 6:
the information acquisition module is used for acquiring parameter information of a BMS system of the battery; the parameter information comprises a thermal runaway signal, maximum voltage and minimum voltage, total pressure, all monomer temperatures and all monomer voltages;
the state detection module is used for acquiring the state information of the battery; the status information includes a temperature of the battery and whether the battery generates smoke;
the temperature detection module is used for acquiring the environmental temperature information of the laboratory;
the diagnosis module is used for diagnosing the battery according to the parameter information, the state information of the battery and the laboratory environment temperature information to obtain a diagnosis result;
an alarm for issuing an alarm;
the spraying device is used for spraying water to the battery;
and the automatic control module is used for selecting whether to loosen the clamp, close the vibration equipment, start the alarm and start the spraying device according to the diagnosis result.
8. The safety control system of claim 7, further comprising a manual control module for manually controlling the clamp to re-clamp, the vibratory device to re-activate, the alarm to turn off, and/or the spray device to turn off.
9. The safety control system of claim 7, wherein the status detection module comprises a temperature sensor and a smoke sensor.
10. The safety control system of claim 9, wherein the status detection module further comprises a carbon monoxide sensor and/or a combustible gas sensor.
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