KR102627262B1 - Environmental adaptability test device and system for electric vehicle battery with firefighting function - Google Patents

Abstract

The present invention is an electric vehicle battery environmental adaptability test device equipped with a plurality of test chambers, and includes a temperature control unit, a humidity control unit, a fire suppression control unit, a wet air supply unit for supplying wet air, and a dry air supply unit for supplying dry air, and has its own fire suppression function. It is possible to determine the possibility and preserve other batteries that have not yet caught fire. In addition, by utilizing statistical data on the surrounding environment in case a fire occurs in a battery, if the possibility of a battery fire occurring is high, an alarm is sent to the manager or the This relates to an electric vehicle battery environmental adaptability test device and system that can prevent fires by stopping testing.

Description

{Environmental adaptability test device and system for electric vehicle battery with firefighting function}

The present invention relates to an environmental adaptability test device and system for an electric vehicle battery with a firefighting function. Specifically, it performs an optimal firefighting function according to a specific fire situation and predicts the possibility of a fire occurrence through fire occurrence statistical data to prevent a fire from occurring in advance. It relates to an electric vehicle battery environmental adaptability test device and system that can prevent environmental damage.

Since its first appearance during the Industrial Revolution, automobiles have been mankind's representative means of transportation, powered by internal combustion engines, commonly called engines, until modern times. An engine is a mechanical device that converts heat energy generated by burning fossil fuel into kinetic energy of a vehicle, and there is a problem in that air pollutants such as carbon dioxide and nitrogen oxides are inevitably generated due to combustion of fuel.

As global warming has emerged as a global issue, discussions on reducing air pollutants are taking place very actively. Representatively, voices suggesting a shift to electric vehicles powered by electrical energy instead of existing vehicles powered by fossil fuels (specifically, gasoline and diesel, etc.) have grown, and recently, the movement has become a reality. As a result of many countries implementing policies such as providing subsidies to electric vehicles, the proportion of electric vehicles among all vehicles has rapidly increased. Electric vehicles operate by using electrical energy stored in a battery as a power source and supplying the electrical energy to a motor to convert it into kinetic energy of the vehicle. For this reason, since it does not require any fossil fuels, it is recognized as an eco-friendly car because it does not generate various air pollutants caused by burning fossil fuels.

As the demand for electric vehicles has recently rapidly increased, the demand for batteries, which are the power source of electric vehicles, has also rapidly increased. However, batteries have the disadvantage of being more vulnerable to fire than internal combustion engine vehicles because it is difficult to extinguish a fire if a fire occurs. For this reason, it is necessary to conduct a thorough environmental adaptability test on the battery in advance to determine in what environment the battery is vulnerable and to supplement this.

Electric vehicle battery environmental adaptability test devices and systems for such battery tests are known, and can test the battery's environmental adaptability by adjusting temperature, humidity, pressure, etc. in the battery's surrounding environment. However, there are cases where a fire occurs in the battery during environmental adaptability testing.

Accordingly, there is an increasing demand for test devices and systems that can take appropriate follow-up measures in case a fire occurs during environmental adaptability testing.

Korean Patent Registration No. 2546821 Korean Patent Registration No. 2433538 Korean Patent Application Publication No. 2023-0079153 Korean Patent Registration No. 2513817

The purpose of the present invention is to provide an electric vehicle battery environmental adaptability test device and system that can determine its own fire suppression potential and preserve other batteries that have not yet caught fire.

The purpose of the present invention is to create an electric vehicle battery environment that can prevent fires by sending an alarm to the manager or stopping the test itself when there is a high possibility of a fire occurring in the battery by using statistical data on the surrounding environment in case a fire occurs in the battery. To provide adaptive testing devices and systems.

An electric vehicle battery environmental adaptability test device according to an embodiment of the present invention includes a plurality of test chambers, and also includes a temperature control unit, a humidity control unit, a fire suppression control unit, a wet air supply unit that supplies wet air, and a dry air supply unit that supplies dry air. A temperature control unit is configured to independently control the internal temperature of each of the plurality of test chambers, and the temperature control unit includes a first temperature control mode for raising or lowering the internal temperature of the test chamber at a first rate, and a test chamber. A second temperature control mode that increases or decreases the internal temperature of the test chamber at a second rate, a third temperature control mode that increases or decreases the internal temperature of the test chamber at a third rate, and a predetermined temperature inside the test chamber. The internal temperature of the test chamber can be controlled in the fourth temperature control mode maintained for a period of time, and the wet air supply unit includes a water storage unit, a wet air supply passage that supplies wet air from the water storage unit into the test chamber, and It includes a wet air blower and a heating unit that heats water in the water storage unit to generate water vapor, and the dry air supply unit includes a dry air supply passage that supplies dry air into the test chamber and a dry air blower and a dehumidifying filter installed in the dry air supply passage, The humidity control unit may control the heating unit and the wet air blower to increase the humidity in the test chamber, or operate the dry air blower to decrease the humidity in the test chamber.

The electric vehicle battery environmental adaptability test device according to an embodiment of the present invention further includes a fire extinguishing liquid supply unit, the fire extinguishing liquid supply unit includes a fire extinguishing liquid storage unit and a fire extinguishing liquid supply passage connected from the fire extinguishing liquid storage unit to the test chamber, and each test In the chamber, a heat sensor, a spark sensor, and a smoke sensor are disposed, and the fire suppression control unit performs the corresponding test when a fire is detected by any two or more of the heat sensor, the spark sensor, and the smoke sensor. It is determined that a fire has occurred within the chamber, and control is provided to supply fire extinguishing liquid into the test chamber where the fire occurred through the fire extinguishing liquid supply unit.

The electric vehicle battery environmental adaptability test device according to an embodiment of the present invention further includes a vacuum environment creation unit, and the fire suppression control unit controls the vacuum environment creation unit so that the inside of another test chamber adjacent to the test chamber in which the fire occurred is in a vacuum state. , This can prevent the fire from moving from the test chamber where the fire occurred to an adjacent test chamber.

The electric vehicle battery environmental adaptability test device according to an embodiment of the present invention further includes a record storage unit, wherein the record storage unit generates and stores battery identification information for all batteries placed in the electric vehicle battery environmental adaptability test device, and generates and stores battery identification information for all batteries placed in the electric vehicle battery environmental adaptability test device. If it is determined by the suppression control unit that a fire has occurred in the test chamber, the time from a predetermined time before the time of fire occurrence to the time of fire occurrence is designated as the fire cause time, and the battery identification information during the fire cause time is stored in the fire environment. It is designated as information and stored in a separate storage space, and a fire report is generated based on fire environment information. Battery identification information includes a battery identification ID that can identify each battery, the number of the test chamber where the battery is placed, The time at which the battery test was conducted in the test chamber and information on temperature, humidity, and pressure for each hour may be included.

In the electric vehicle battery environmental adaptability test device according to an embodiment of the present invention, the fire suppression control unit includes fire environment information such as the highest pressure, lowest pressure, average slope of pressure change, highest humidity, lowest humidity, at least during the fire cause time, Determine the average slope of humidity change, highest temperature, lowest temperature, and average slope of temperature change, and the highest pressure, lowest pressure, average slope of pressure change, highest humidity, lowest humidity, and humidity during the fire cause time in multiple fire environment information. Calculates and remembers statistical values of change average slope, highest temperature, minimum temperature, and temperature change average slope, and informs the manager in advance when environmental conditions matching the statistics within a predetermined range are recognized during battery testing in the test chamber. A caution alarm can be sent.

In the electric vehicle battery environmental adaptability test device according to an embodiment of the present invention, the fire suppression control unit, when a fire is detected in a plurality of test chambers, has the similarity of the fire occurrence time and fire environment information of the test chamber in which the fire was detected. Compare, and if it is determined that the fire occurrence time and fire environment information of the multiple test chambers where the fire was detected are similar by satisfying predetermined standards, the cause of the fire occurring in the multiple test chambers is determined to be the same, and In this case, batteries placed in test chambers other than the test chamber where the fire occurred are controlled to be automatically discharged to the outside, and if the fire occurrence time and fire environment information of the plurality of test chambers where the fire was detected do not meet predetermined standards, It is determined that the cause of the fire occurring in a plurality of test chambers is an independent cause unrelated to each other, and fire extinguishing liquid can be supplied to each test chamber in which a fire is detected through a fire extinguishing liquid supply unit.

In the electric vehicle battery environmental adaptability test device according to an embodiment of the present invention, the fire suppression control unit recognizes a first environmental condition that matches a statistical value within a predetermined first range while the battery test is in progress in the test chamber. , If an alarm is sent to the administrator to inquire whether to stop the test, and the administrator does not reply to the alarm to inquire whether to stop the test, and a second environmental condition matching the statistical value within a predetermined second range is recognized, the test is performed. Control is performed to stop testing in the chamber, and the second range may be a range closer to the statistical value than the first range.

According to an embodiment of the present invention, it is possible to provide an electric vehicle battery environmental adaptability test device and system that can determine the possibility of self-extinguishing a fire and preserve other batteries that have not yet caught fire.

According to an embodiment of the present invention, an electric vehicle can prevent a fire by sending an alarm to the manager or stopping the test itself when there is a high possibility of a fire occurring in the battery by using statistical data on the surrounding environment in the event of a fire in the battery. Battery environmental adaptability test devices and systems can be provided.

Figure 1 is a perspective view of an electric vehicle battery environmental adaptability test device according to an embodiment of the present invention.
Figure 2 is a configuration diagram of an electric vehicle battery environmental adaptability test device according to an embodiment of the present invention.
Figure 3 is a flowchart showing an algorithm for determining the possibility of self-fire suppression and controlling follow-up measures in an electric vehicle battery environmental adaptability test device according to an embodiment of the present invention.
Figure 4 is a flowchart showing an algorithm for predicting the possibility of fire occurrence and preventing it in advance in an electric vehicle battery environmental adaptability test device according to an embodiment of the present invention.

Hereinafter, embodiments will be described in detail with reference to the attached drawings. However, various changes can be made to the embodiments, so the scope of the patent application is not limited or limited by these embodiments. It should be understood that all changes, equivalents, or substitutes for the embodiments are included in the scope of rights.

Specific structural or functional descriptions of the embodiments are disclosed for illustrative purposes only and may be modified and implemented in various forms. Accordingly, the embodiments are not limited to the specific disclosed form, and the scope of the present specification includes changes, equivalents, or substitutes included in the technical spirit.

Terms such as first or second may be used to describe various components, but these terms should be interpreted only for the purpose of distinguishing one component from another component. For example, a first component may be named a second component, and similarly, the second component may also be named a first component.

When a component is referred to as being “connected” to another component, it should be understood that it may be directly connected or connected to the other component, but that other components may exist in between.

The terms used in the examples are for descriptive purposes only and should not be construed as limiting. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the technical field to which the embodiments belong. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

In addition, when describing with reference to the accompanying drawings, identical components will be assigned the same reference numerals regardless of the reference numerals, and overlapping descriptions thereof will be omitted. In describing the embodiments, if it is determined that detailed descriptions of related known technologies may unnecessarily obscure the gist of the embodiments, the detailed descriptions are omitted.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms. The present embodiments only serve to ensure that the disclosure of the present invention is complete and that common knowledge in the technical field to which the present invention pertains is not limited. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

In the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, are the same as those commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. It has meaning. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless clearly defined in the embodiments of the present invention, have an ideal or excessively formal meaning. It is not interpreted as

The shapes, sizes, proportions, angles, numbers, etc. disclosed in the drawings for explaining embodiments of the present invention are illustrative, and the present invention is not limited to the matters shown. Additionally, in describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. When ‘includes’, ‘has’, ‘consists of’, etc. mentioned in this specification are used, other parts may be added unless ‘only’ is used. When a component is expressed in the singular, the plural is included unless specifically stated otherwise.

When interpreting a component, it is interpreted to include the margin of error even if there is no separate explicit description.

In the case of a description of a positional relationship, for example, if the positional relationship of two parts is described as 'on top', 'on the top', 'on the bottom', 'next to', etc., 'immediately' Alternatively, there may be one or more other parts placed between the two parts, unless 'directly' is used.

When an element or layer is referred to as “on” another element or layer, it includes instances where the element or layer is directly on top of or intervening with another element. Like reference numerals refer to like elements throughout the specification.

The size and thickness of each component shown in the drawings are shown for convenience of explanation, and the present invention is not necessarily limited to the size and thickness of the components shown.

Each feature of the various embodiments of the present invention can be partially or fully combined or combined with each other, and as can be fully understood by those skilled in the art, various technical interconnections and operations are possible, and each embodiment may be implemented independently of each other. It may be possible to conduct them together due to a related relationship.

Figure 1 is a perspective view of an electric vehicle battery environmental adaptability test device 1 according to an embodiment of the present invention. Figure 2 is a configuration diagram of an electric vehicle battery environmental adaptability test device 1 according to an embodiment of the present invention.

The electric vehicle battery environmental adaptability test apparatus 1 according to an embodiment of the present invention may be provided with a plurality of test chambers 90 for testing the environmental adaptability of the battery.

In one embodiment, the electric vehicle battery environmental adaptability test device 1 includes a temperature control unit 10, a humidity control unit 20, a fire suppression control unit 30, a wet air supply unit 40 for supplying wet air, and a dry air supply unit for supplying dry air. It may include a supply unit 50.

In one embodiment, the temperature control unit 10 may be configured to independently control the internal temperature of each of the plurality of test chambers 90. As a result, different tests can be performed for each test chamber 90 and more test results can be obtained within a limited time, enabling efficient testing.

In one embodiment, the temperature control unit 10 has a first temperature control mode that increases or decreases the internal temperature of the test chamber 90 at a first rate, and increases or decreases the internal temperature of the test chamber 90 at a second rate. A second temperature control mode that lowers the internal temperature of the test chamber 90, a third temperature control mode that increases or decreases the internal temperature of the test chamber 90 at a third rate, and maintaining the internal temperature of the test chamber 90 at a constant temperature for a predetermined time. The internal temperature of the test chamber 90 can be controlled in the fourth temperature control mode.

The first temperature control mode may increase or decrease the temperature inside the test chamber 90 at a rate of, for example, 5°C. Additionally, the second temperature control mode may increase or decrease the temperature inside the test chamber 90 at a rate of, for example, 7°C. Additionally, the third temperature control mode may increase or decrease the temperature inside the test chamber 90 at a rate of, for example, 10°C.

In addition to the first to third temperature control modes, the temperature control unit 10 may further execute various temperature control modes that change the temperature inside the test chamber 90 at various speeds. This allows detailed testing of how the battery reacts in complex and diverse environmental changes.

When controlling the internal temperature of the test chamber 90 in the fourth temperature control mode, the temperature control unit 10 can maintain the internal temperature of the test chamber 90 at an extreme temperature for a long time. For example, the temperature control unit 10 can maintain the temperature of the test chamber 90 at -40°C for 1000 hours in the fourth temperature control mode. By doing this, it is possible to check how long the battery can endure in extreme environments, its durability, and how it reacts when its durability runs out.

In one embodiment, the wet air supply unit 40 includes a water storage unit 41, a wet air supply passage 42 that supplies wet air from the water storage unit 41 into the test chamber 90, and a wet air supply passage 42. It may include an installed wet air blower 43 and a heating unit 44 that heats the water in the water storage unit 41 to generate water vapor.

According to the above-described embodiment, water vapor generated by heating the water in the water storage unit 41 is supplied into the test chamber 90 to increase the humidity in the test chamber 90. The heating unit 44 may be configured to adjust the amount of heat transfer of heat applied to the water storage unit 41. Additionally, the wet air blower 43 may be configured to adjust its rotation speed differently. As a result, the humidity can be easily adjusted freely, and the environmental adaptability of the battery in areas such as Southeast Asia with high humidity can be easily tested.

In one embodiment, the dry air supply unit 50 may include a dry air supply passage 52 that supplies dry air into the test chamber 90, and a dry air blower 53 and a dehumidifying filter 54 installed in the dry air supply passage. At this time, the dry wind blower 53 may be configured to adjust the rotation speed differently.

According to the above-described embodiment, the wind supplied by the dry wind blower 53 passes through the dehumidifying filter 54 and moisture is removed to form dry air, and the dry wind thus formed passes through the dry air supply passage 52 to the test chamber ( 90), the humidity in the test chamber 90 can be lowered. That is, the humidity in the test chamber 90 can be adjusted to be dry. As a result, the humidity can be easily adjusted freely, and the environmental adaptability of the battery in low-humidity, dry desert areas, etc. can be easily tested.

In one embodiment, the humidity control unit 20 operates the heating unit 44 and the wet air blower 43 to increase the humidity in the test chamber 90, or operates the dry air blower 53 to increase the humidity in the test chamber 90. It can be controlled to lower the humidity inside. That is, the humidity control unit 20 can control the wet air supply unit 40 and the dry air supply unit 50 to freely and easily control the humidity in the test chamber 90, and can test the environmental adaptation of the battery in various humidity environments. can be easily performed.

The electric vehicle battery environmental adaptability test device 1 according to an embodiment of the present invention may further include a digestive fluid supply unit 60.

In one embodiment, the digestive fluid supply unit 60 may include a digestive fluid storage unit 61 and a digestive fluid supply passage 62 connected from the digestive fluid storage unit 61 into the test chamber 90. The extinguishing liquid stored in the extinguishing liquid storage unit 61 may be supplied into the test chamber 90 through the extinguishing liquid supply passage 62.

In one embodiment, a heat sensor, a spark sensor, and a smoke sensor may be disposed within each test chamber 90. The heat detection sensor is a sensor that detects the temperature within the test chamber 90 and determines whether a fire has occurred. A spark detection sensor is a sensor that detects whether a fire has occurred by detecting sparks, that is, light, generated by a fire. A smoke detection sensor is a sensor that detects whether a fire has occurred by detecting smoke generated when a fire occurs, that is, combustion products. By simultaneously using multiple sensors that determine whether a fire has occurred in different ways, it is possible to more accurately determine whether a fire has occurred.

In one embodiment, the fire suppression control unit 30 determines that a fire has occurred in the test chamber 90 when a fire is detected by any two or more of a heat detection sensor, a spark detection sensor, and a smoke detection sensor. It is possible to control the supply of fire extinguishing fluid into the test chamber 90 where a fire occurs through the fire extinguishing fluid supply unit 60.

According to the above-described embodiment, the fire suppression process is performed only when it is determined that a fire has been detected by two or more of several sensors that determine whether a fire has occurred in different ways, thereby preventing false detection of a fire. It can be minimized and more accurate judgment of whether there is a fire is possible.

The electric vehicle battery environmental adaptability test device 1 according to an embodiment of the present invention may further include a vacuum environment creation unit 70.

In one embodiment, the fire suppression control unit 30 may control the vacuum environment creation unit 70 so that the inside of another test chamber 90 adjacent to the test chamber 90 where a fire occurs is in a vacuum state.

For a fire to occur, oxygen is essential for combustion. If the inside of the other test chamber 90 adjacent to the test chamber 90 where the fire occurred is placed in a vacuum state, the fire cannot spread because there is no oxygen for combustion. The inventors of the present invention took advantage of this fact to develop the present invention, which prevents the possibility of fire from spreading in advance by creating a vacuum inside the other test chambers 90 adjacent to it when a fire is detected in a specific test chamber 90. It was not proposed. At this time, the 'adjacent' test chamber 90 refers to the neighboring test chamber 90 that is directly adjacent to the test chamber 90 where the fire occurred, and the facing direction is any of the following: up, down, left, right, or diagonal. Even so, it is irrelevant.

According to the above-described embodiment, it is possible to prevent the fire from moving from the test chamber 90 where the fire occurred to the adjacent test chamber 90, thereby minimizing damage caused by the fire.

The electric vehicle battery environmental adaptability test device 1 according to an embodiment of the present invention may further include a recording storage unit 80.

In one embodiment, the recording storage unit 80 may be configured to generate and store battery identification information for all batteries disposed in the electric vehicle battery environmental adaptability test device 1.

In one embodiment, the battery identification information includes a battery identification ID that can identify each battery, the number of the test chamber 90 in which the battery is placed, the time when the battery test was performed in the test chamber 90, and the temperature for each time, Humidity and pressure information may be included. In this way, an identification ID can be assigned to each battery to distinguish them from each other, and by recording environmental information (temperature, humidity, pressure, etc.) for each time the test was conducted for each battery, the environmental adaptability of each battery can be determined in what environment. It can be converted into data and easily used for later analysis.

In one embodiment, when the fire suppression control unit 30 determines that a fire has occurred in the test chamber 90, the fire suppression control unit 30 determines the time from a predetermined time before the time the fire occurred to the time the fire occurred. can be designated as the fire cause time. For example, if test chamber 1 detects a fire at 14:23 on September 1, 2023, the fire occurs from 14:08 on September 1, 2023, 15 minutes before the fire detection time, to the time of fire detection. The cause can be specified by time.

Additionally, in one embodiment, the fire suppression control unit 30 may designate battery identification information during the fire cause time as fire environment information and store it in a separate storage space.

In this way, fire cause analysis can be performed more easily by identifying and identifying environmental conditions in the time period immediately before the fire when fire occurrence conditions are likely to have been met.

In one embodiment, the fire suppression control unit 30 may generate a fire report based on fire environment information. For example, a fire report may be in a form that can be easily seen by graphing the change trend and average value or upper/lower limit of each environmental condition element (e.g., temperature, humidity, pressure, etc.) during the time of the fire cause. As a result, managers can look at the fire report and determine the cause of the fire and the environmental conditions of the battery fire at a glance, and can also easily find clues about countermeasures.

Figure 3 is a flowchart showing an algorithm for determining the possibility of self-fire suppression and controlling follow-up measures in the electric vehicle battery environmental adaptability test device 1 according to an embodiment of the present invention. Figure 4 is a flowchart showing an algorithm for predicting the possibility of fire occurrence and preventing it in advance in the electric vehicle battery environmental adaptability test device 1 according to an embodiment of the present invention.

In the electric vehicle battery environmental adaptability test device 1 according to an embodiment of the present invention, the fire suppression control unit 30 includes at least the highest pressure, lowest pressure, and average slope of pressure change during the fire cause time in fire environment information, It can be configured to determine the highest humidity, lowest humidity, average slope of humidity change, highest temperature, lowest temperature, and average slope of temperature change.

At this time, the average pressure change slope is the average pressure change rate per unit time between the pressure at the start time and the pressure at the end time of the fire cause time. In addition, the average humidity change slope is the average humidity change rate per unit time between the pressure at the start time and the pressure at the end of the fire cause time. In addition, the average temperature change slope is the average temperature change rate per unit time between the pressure at the start time and the pressure at the end of the fire cause time.

The fire suppression control unit 30 also includes the highest pressure, lowest pressure, average slope of pressure change, highest humidity, lowest humidity, average slope of humidity change, highest temperature, lowest temperature and It can be configured to calculate and remember the statistical value of the average slope of temperature change, and to send a precautionary alarm to the administrator when environmental conditions matching the statistical value within a predetermined range are recognized during the battery test in the test chamber 90. there is.

According to the above-described embodiment, in the case where a fire occurs, the surrounding environment information is classified and organized in detail and then the statistics are calculated, and the calculated statistics are compared with a new test environment to predict the possibility of a fire occurrence in advance. there is. Specifically, by collecting data on the surrounding environmental conditions of the battery when a fire actually occurs and calculating statistical values for this, the environmental conditions with a high probability of a fire occurring can be scientifically identified, and by comparing this with the subsequent test environmental conditions, the The likelihood of occurrence can be predicted reliably.

In the electric vehicle battery environmental adaptability test device 1 according to an embodiment of the present invention, when a fire is detected within a plurality of test chambers 90, the fire suppression control unit 30 controls the plurality of test chambers in which the fire was detected. The similarity of the fire occurrence time and fire environment information of (90) is compared, and if the fire occurrence time and fire environment information of the plurality of test chambers (90) where the fire was detected are all judged to be similar by satisfying a predetermined standard, , it can be determined that the cause of the fire occurring in the plurality of test chambers 90 is the same.

In this case, the fire suppression control unit 30 may determine that the fire caused by one cause has already spread to a plurality of test chambers 90 and that it is impossible to suppress the fire on its own because the scale of the fire exceeds the standard value. there is. Since the fire suppression control unit 30 cannot suppress fire on its own, it can control batteries placed in test chambers 90 other than the test chamber 90 where the fire occurred to be automatically discharged to the outside in order to minimize damage.

In one embodiment, the fire suppression control unit 30 detects fire occurring in the plurality of test chambers 90 when the fire occurrence time and fire environment information of the plurality of test chambers 90 where the fire is detected do not meet a predetermined standard. The cause of the fire can be determined to be independent and unrelated. In this case, the fire suppression control unit 30 determines that fire suppression is possible on its own since each fire is in an initial state before it is transferred to another test chamber 90, and each fire in which the fire is detected through the fire extinguishing liquid supply unit 60 is It may be configured to supply fire extinguishing fluid to the test chamber 90.

At this time, the similarity of the fire occurrence time and fire environment information of the test chamber 90 where the fire was detected refers to whether the fire detected in different test chambers 90 occurred at a similar time and the environment when the fire occurred. It was determined whether the conditions were similar. Through this similarity judgment, it can be determined whether the fire detected in different test chambers 90 originates from one fire (i.e., a single cause) or whether it is a plurality of fires caused by separate and independent causes. .

According to the above-described embodiment, rather than simply trying to extinguish a fire simply because a fire is detected, the possibility of self-extinguishing the fire is first predicted by identifying a more specific situation, and then minimizing damage in an optimal manner according to the prediction. There is an effect that can be done.

In the electric vehicle battery environmental adaptability test device 1 according to an embodiment of the present invention, the fire suppression control unit 30 matches the statistical value within a predetermined first range during the battery test in the test chamber 90. When the first environmental condition is recognized, it may be configured to send an alarm to the administrator to inquire whether to stop the test.

In one embodiment, the fire suppression control unit 30 does not respond to the administrator's alarm inquiring whether to stop the test and also recognizes a second environmental condition that matches the statistic within a predetermined second range within the test chamber. You can control the test to stop.

In the above-described embodiment, the second range is a range that is closer to the above-described statistic than the first range. In addition, environmental conditions that match statistical values within a predetermined range mean, for example, a case where the environmental conditions fall within 20% of statistical values (statistical values such as temperature, humidity, and pressure at the time of fire occurrence). At this time, the 20% figure is only a simple example, and the above-mentioned figure may be set differently depending on the situation.

According to the above-described embodiment, the possibility of fire occurrence in a new test can be predicted in advance by using environmental condition statistics in case of past fire occurrence, and if the possibility of fire occurrence is high, by sending an alarm to the manager or directly controlling the test interruption. It is effective in preventing fire occurrence.

Although embodiments of the present invention have been described in more detail with reference to the accompanying drawings, the present invention is not necessarily limited to these embodiments, and various modifications may be made without departing from the technical spirit of the present invention. . Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

Therefore, other implementations, other embodiments, and equivalents of the claims also fall within the scope of the following claims.

10: temperature control unit
20: Humidity control unit
30: Fire suppression control unit
40: Wet air supply unit
50: Dry wind supply department
60: Digestive juice supply unit
70: Vacuum environment creation department
80: record storage unit
90: test chamber

Claims (5)

An electric vehicle battery environmental adaptability test device (1) equipped with a plurality of test chambers (90),
A temperature control unit 10, a humidity control unit 20, a fire suppression control unit 30, a wet air supply unit 40 for supplying wet air, a dry air supply unit 50 for supplying dry air, a fire extinguishing liquid supply unit 60, and a record storage unit ( 80), including
The temperature control unit 10 is configured to independently control the internal temperature of each of the plurality of test chambers 90,
The temperature control unit 10 has a first temperature control mode that increases or decreases the internal temperature of the test chamber 90 at a first rate, and increases or decreases the internal temperature of the test chamber 90 at a second rate. a second temperature control mode that raises or lowers the internal temperature of the test chamber 90 at a third rate, and a third temperature control mode that sets the internal temperature of the test chamber 90 to a constant temperature for a predetermined period of time. The internal temperature of the test chamber 90 can be controlled in a fourth temperature control mode that maintains,
The wet air supply unit 40 includes a water storage unit 41, a wet air supply passage 42 that supplies wet air from the water storage unit 41 into the test chamber 90, and a wet air supply passage 42 installed in the wet air supply passage 42. It includes a blower 43 and a heating unit 44 that heats the water in the water storage unit 41 to generate water vapor,
The dry air supply unit 50 includes a dry air supply passage 52 that supplies dry air into the test chamber 90, a dry air blower 53 installed in the dry air supply passage, and a dehumidifying filter 54,
The humidity control unit 20 operates the heating unit 44 and the wet air blower 43 to increase the humidity in the test chamber 90, or operates the dry air blower 53 to increase the humidity in the test chamber ( 90) Control to lower the humidity inside,
The digestive fluid supply unit 60 includes a digestive fluid storage unit 61 and a digestive fluid supply passage 62 connected from the digestive fluid storage unit 61 into the test chamber 90,
In each of the test chambers 90, a heat detection sensor, a spark detection sensor, and a smoke detection sensor are disposed,
When a fire is detected by any two or more of the heat detection sensor, the spark detection sensor, and the smoke detection sensor, the fire suppression control unit 30 determines that a fire has occurred within the test chamber 90 and determines that a fire has occurred in the test chamber 90. Controlling the supply of fire extinguishing fluid into the test chamber 90 where the fire occurred through the fire extinguishing fluid supply unit 60,
The record storage unit 80,
Generate and store battery identification information for all batteries placed in the electric vehicle battery environmental adaptability test device (1),
When the fire suppression control unit 30 determines that a fire has occurred in the test chamber 90, the time from a predetermined time before the time the fire occurred to the time the fire occurred is designated as the fire cause time,
The battery identification information during the fire cause time is designated as fire environment information and stored in a separate storage space,
Generate a fire report based on the fire environment information,
The battery identification information includes a battery identification ID that can identify each battery, the number of the test chamber 90 in which the battery is placed, the time when the battery test was performed in the test chamber 90, and the temperature, humidity, and containing pressure information,
Electric vehicle battery environmental adaptability test device (1). delete According to paragraph 1,
It further includes a vacuum environment creation unit (70),
The fire suppression control unit 30 controls the vacuum environment creation unit 70 so that the inside of the other test chamber 90 adjacent to the test chamber 90 where the fire occurred is in a vacuum state,
This prevents the fire from moving from the test chamber 90 where the fire occurred to the adjacent test chamber 90,
Electric vehicle battery environmental adaptability test device (1). delete According to paragraph 1,
The fire suppression control unit 30,
In the fire environment information, determine the highest pressure, lowest pressure, average slope of pressure change, highest humidity, lowest humidity, average slope of humidity change, highest temperature, lowest temperature, and average slope of temperature change during at least the fire cause time,
Calculate statistical values of the highest pressure, lowest pressure, average slope of pressure change, highest humidity, lowest humidity, average slope of humidity change, highest temperature, lowest temperature, and average slope of temperature change during the fire cause time in a plurality of fire environment information. and remember,
During a battery test in the test chamber 90, if an environmental condition matching the statistical value is recognized within a predetermined range, a precautionary alarm is sent to the administrator.
Electric vehicle battery environmental adaptability test device (1).