CN214435983U - Vehicle-mounted battery box fire extinguishing module - Google Patents
Vehicle-mounted battery box fire extinguishing module Download PDFInfo
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- CN214435983U CN214435983U CN202023049485.3U CN202023049485U CN214435983U CN 214435983 U CN214435983 U CN 214435983U CN 202023049485 U CN202023049485 U CN 202023049485U CN 214435983 U CN214435983 U CN 214435983U
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Abstract
The utility model relates to a vehicle-mounted battery box fire extinguishing module, which comprises a detection module, a control module, an alarm module, a fire extinguishing module and a manual starting module; the detection module, the control module and the fire extinguishing module are arranged inside the vehicle-mounted battery box; the alarm module and the manual starting module are arranged outside the battery box; the detection module is connected with the control module to send the acquired detection signal to the control module; the control module is respectively connected with the alarm module and the fire extinguishing module so as to control the fire extinguishing module to start fire extinguishing and control the alarm module to alarm when the detection signal reaches a preset threshold value; the manual starting module is connected with the fire extinguishing module to control the fire extinguishing module to start fire extinguishing. The utility model discloses can carry out conflagration early warning to the battery box and judge, move before the conflagration appears, avoid on-vehicle battery burning, guarantee the security of driving a vehicle.
Description
Technical Field
The utility model relates to a vehicle-mounted battery box technical field that puts out a fire, especially a vehicle-mounted battery box module of putting out a fire.
Background
With the continuous popularization of new energy automobiles, the number of new energy automobiles in China is increased rapidly, and the safety problem is increased more and more. Lithium ion batteries are mostly adopted as power systems of new energy automobiles, certain potential safety hazards exist when the lithium ion batteries are used in vehicles, and particularly, safety accidents of smoking, fire and even explosion easily occur to the lithium ion batteries under the conditions of overcharge, overdischarge, extrusion, needling, burning and the like. In recent years, accidents caused by ignition of batteries of new energy automobiles at home and abroad are increased continuously, in order to enhance the safety performance of the batteries of the new energy automobiles, the batteries need to be newly designed and improved, and an early warning and fire extinguishing module is designed in a vehicle-mounted battery box, so that an effective method is provided.
At present, a plurality of design schemes for the fire extinguishing module of the vehicle-mounted battery box exist, the batteries are isolated independently, each battery is provided with a fire extinguishing agent pipeline, the battery box is externally connected with a fire extinguisher, and a netted fire extinguishing agent spraying pipeline is designed. Meanwhile, few design schemes can give out early warning before a fire occurs, and measures for inhibiting the fire are taken to avoid battery combustion.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an among the main aim at overcome prior art, provide an on-vehicle battery box module of putting out a fire, can carry out conflagration early warning to the battery box and judge, move before the conflagration appears, avoided on-vehicle battery burning, guaranteed the security of driving a vehicle.
The utility model adopts the following technical scheme:
an on-board battery box fire suppression module, comprising: the fire extinguishing system comprises a detection module, a control module, an alarm module, a fire extinguishing module and a manual starting module; the detection module, the control module and the fire extinguishing module are arranged inside the vehicle-mounted battery box; the alarm module and the manual starting module are arranged outside the battery box; the detection module is connected with the control module to send the acquired detection signal to the control module; the control module is respectively connected with the alarm module and the fire extinguishing module so as to control the fire extinguishing module to start fire extinguishing and control the alarm module to alarm when the detection signal reaches a preset threshold value; the manual starting module is connected with the fire extinguishing module to control the fire extinguishing module to start fire extinguishing.
Preferably, the fire suppression module includes a gas generant, an igniter, and a housing; the gas generant and igniter are disposed within the housing; the control module and the manual starting module are respectively connected with the igniter to start the igniter.
Preferably, the shell is formed by a soft substance.
Preferably, the fire extinguishing module comprises a fire extinguishing agent bottle in which a fire extinguishing agent is arranged; a fire extinguishing agent control valve is arranged on the fire extinguishing agent bottle; the control module and the manual starting module are respectively connected with the fire extinguishing agent control valve to open the fire extinguishing agent bottle for fire extinguishing.
Preferably, the fire extinguishing module comprises one or more than one fire extinguishing module; the detection module comprises one or more than one detection module.
Preferably, the detection module comprises one or more of a gas detector, a smoke sensor, a temperature sensor and an impact sensor; the gas detector is used for detecting a gas concentration signal; the smoke sensor is used for detecting a smoke concentration signal; the temperature sensor is used for detecting an environment temperature signal; the collision sensor is used for detecting a collision degree signal.
Preferably, the gas detector comprises a gas sensor; the smoke sensor comprises a scattered light type photoelectric smoke detector; the temperature sensor comprises a temperature sensing cable; the impact sensor includes an electronic impact sensor.
Preferably, the alarm module is arranged on a vehicle instrument panel and comprises an indicator light and/or a buzzer.
Preferably, the manual starting module is arranged on the battery box shell and comprises a manual button; the manual starting module is electrically connected with the fire extinguishing module.
Preferably, the control module is connected with the detection module, the alarm module and the fire extinguishing module through a CAN bus.
From the above description of the present invention, compared with the prior art, the present invention has the following advantages:
the utility model relates to a vehicle-mounted battery box fire extinguishing module, which comprises a control module and a manual starting module, wherein the control module can perform fire early warning judgment on a battery box, and acts before a fire occurs to start fire extinguishing; meanwhile, fire extinguishing can be started through the manual starting module when the control module fails; through combining together automatic and manual two kinds of modes of putting out a fire, avoided on-vehicle battery burning, guaranteed the security of driving a vehicle.
The present invention will be described in further detail with reference to the accompanying drawings and examples, but the present invention is not limited to the examples.
Drawings
Fig. 1 is a structural block diagram of a vehicle-mounted battery box fire extinguishing module according to a first embodiment of the present invention;
fig. 2 is a structural diagram of a vehicle-mounted battery box fire extinguishing module according to a first embodiment of the present invention;
fig. 3 is a three-dimensional structure diagram of a vehicle-mounted battery box fire extinguishing module according to a first embodiment of the present invention;
fig. 4 is a three-dimensional structure diagram of a fire extinguishing module according to a first embodiment of the present invention;
fig. 5 is a structural diagram of a fire extinguishing module according to a first embodiment of the present invention;
fig. 6 is a structural block diagram of a vehicle-mounted battery box fire extinguishing module according to a second embodiment of the present invention;
fig. 7 is a structural diagram of a fire extinguishing module of a vehicle-mounted battery box according to a second embodiment of the present invention;
fig. 8 is a three-dimensional structure view of a fire extinguishing module of a vehicle-mounted battery box according to a third embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the following detailed description.
Example one
Referring to fig. 1 to 3, the utility model relates to a vehicle-mounted battery box fire extinguishing system, include: the fire extinguishing system comprises a detection module 2, a control module 1, an alarm module 3, a fire extinguishing module 4 and a manual starting module 5; the detection module 2, the control module 1 and the fire extinguishing module 4 are arranged inside the vehicle-mounted battery box 7; the alarm module 3 and the manual starting module 5 are arranged outside the battery box 7; the detection module 2 is connected with the control module 1 to send the acquired detection signal to the control module 1; the control module 1 is respectively connected with the alarm module 3 and the fire extinguishing module 4 so as to control the fire extinguishing module 4 to start fire extinguishing and control the alarm module 3 to alarm when the detection signal reaches a preset threshold value; the manual starting module 5 is connected with the fire extinguishing module 4 to control the fire extinguishing module 4 to start fire extinguishing.
In this embodiment, a plurality of battery cells 8 are disposed in the battery box 7. The detection module 2 comprises one or more of a gas detector 21, a smoke sensor 22, a temperature sensor 23 and an impact sensor 24; the control module 1 is connected with the detection module 2, the alarm module 3 and the fire extinguishing module 4, and the control module 1 is used for acquiring a detection signal from the detection module 2, controlling the fire extinguishing module 4 to extinguish fire according to the detection signal and controlling the alarm module 3 to alarm; the alarm module 3 reminds people in the vehicle that the battery box 7 is likely to have a fire through an acoustic/optical alarm signal; the fire suppression module 4 includes a gas generating agent 42, an igniter 41, and a housing 40.
Specifically, the detection module 2, the control module 1 and the fire extinguishing module 4 are all located inside the vehicle-mounted battery box 7 or are arranged in a mounting groove formed by the outer protrusion of the inner wall of the battery box 7.
Specifically, the gas detector 21 is configured to detect a gas concentration signal; the smoke sensor 22 is used for detecting a smoke concentration signal; the temperature sensor 23 is used for detecting an environment temperature signal; the impact sensor 24 is used to detect an impact level signal. The gas concentration signal selects a characteristic gas concentration signal generated by the combustion process.
The alarm module 3 is connected with the control module 1, and the control module 1 controls the alarm module 3 to alarm according to the detection signal. Specifically, the alarm module 3 comprises a gas alarm unit, a smoke alarm unit, a temperature alarm unit and a collision alarm unit, and each alarm is realized by adopting an indicator lamp or/and a buzzer. During specific implementation, the gas alarm unit, the smoke alarm unit, the temperature alarm unit and the collision alarm unit can be realized by adopting different lights or/and sounds, and can also be realized by adopting the same lights or/and sounds.
In this embodiment, the alarm module 3 is disposed on a vehicle instrument panel, and the control module 1 is connected to the detection module 2, the alarm module 3, and the fire extinguishing module 4 through a CAN bus.
The gas detector 21 can adopt a gas sensor, detects the concentration of the characteristic gas in the specified combustion process, can detect the characteristic gas before or after combustion, and has high sensitivity.
Specifically, when a single battery in the battery box 7 is overcharged due to some reasons to cause the explosion-proof valve to open, the gas of the CO-like and the CO-like 2 decomposed by the electrolyte in the battery box 7 is increased, when the gas detector 21 can detect the gas components and the gas content, the detected data is sent to the control module 1, the control module 1 judges according to the gas data, and when the preset value is met, the fire extinguishing module 4 is controlled to extinguish a fire and the alarm module 3 is controlled to alarm.
The smoke sensor 22 adopts a scattered light type photoelectric smoke detector, so that large particles of generated smoke can be detected before the lithium battery generates open fire and burns, and the response speed is higher.
Specifically, inside because the battery is unusual to be used when battery box 7, perhaps because the collision that the vehicle appears and the battery box 7 body, the battery cell deformation that the collision arouses lead to the inside smog of box to produce, smoke sensor 22 can in time survey to, control module 1 judges according to this smog information, when satisfying the preset condition, controls module 4 of putting out a fire, and control alarm module 3 reports to the police simultaneously.
The temperature sensor 23 is a temperature sensing cable, and can be arranged near each battery pack or at a position where a short-circuit fault is likely to occur, so that an alarm can be given to abnormal heating, and the detection range is wider.
Specifically, when the battery appears overcharging or overdischarging, probably cause the rising of battery temperature, temperature sensor 23 detects the inside temperature of box to give control module 1 with temperature information transmission, control module 1 judges according to temperature information, and when the temperature reached the default, control fire extinguishing module 4 put out a fire, and control alarm module 3 reports to the police simultaneously.
The collision sensor 24 adopts an electronic collision sensor 24, can detect the collision degree in the battery box 7 in real time, if a serious collision accident occurs to the vehicle, the battery is likely to generate thermal runaway or damage and leakage under severe collision, and at the moment, the collision sensor 24 can trigger the fire extinguishing module 4 to work by using a collision signal so as to prevent the serious accident.
In this embodiment, the control module 1 is implemented by using an MCU or a single chip microcomputer, and can be used to determine whether various data transmitted by the detection module 2 meet the fire standard, and if the data meet the fire standard, the corresponding alarm module 3 is started to alarm on the dashboard of the vehicle, and the fire extinguishing module 4 is started to extinguish the fire of the battery box 7.
The control module 1 may process the following:
s1, presetting a specified gas concentration threshold value, a smoke concentration threshold value, an environment temperature threshold value and a collision degree threshold value of fire occurrence;
s2, receiving a specified gas concentration signal, a smoke concentration signal, an environment temperature signal and a collision degree signal in the battery box 7, which are detected by the detection module 2 in real time;
s3, comparing the received detection signal with preset signal thresholds (a specified gas concentration threshold, a smoke concentration threshold, an environment temperature threshold and a collision degree threshold), judging whether a fire disaster occurs in the battery box 7, and controlling the operation of the alarm module 3 and the fire extinguishing module 4 according to the judgment result;
s4, when the fire extinguishing module 4 cannot automatically extinguish fire due to an accident, the manual starting module 5 can be used for extinguishing fire of the battery box 7.
In a specific embodiment, in S3, when the specified gas concentration signal is greater than the preset specified gas concentration threshold, and/or the smoke concentration signal is greater than the preset smoke concentration threshold, and/or the environment temperature signal is greater than the environment temperature threshold, and/or the collision degree signal is greater than the collision degree threshold, it is determined that a fire occurs in the battery box 7, and the alarm module 3 is controlled to alarm, and the fire extinguishing module 4 is controlled to extinguish the fire.
Specifically, can carry out automatic control through control module 1, simultaneously, can also pass through manual control is carried out to manual starting module 5, just so need not control module 1 at this moment, only need set up a manual starting device at ignitor 41, for example: the starting button of the igniter 41, and the manual control process comprises the following steps: when a fire occurs in the battery box 7, the control module 1 does not successfully start the fire extinguishing module 4 to extinguish the fire due to an accident, and a driver can manually start the fire extinguishing module 4 to extinguish the fire. The present embodiment includes the above two control modes at the same time.
Referring to fig. 4 and 5, the fire extinguishing module 4 includes a gas generating agent 42, an igniter 41, and a housing 40; the gas generating agent 42 and igniter 41 are disposed within the housing 40; the control module 1 and the manual starting module 5 are respectively connected with the igniter 41 to start the igniter 41. The process of putting out a fire of the fire extinguishing module 4 is that when the control module 1 judges that a fire hazard occurs or a manual start button is pressed, a current signal is transmitted to the igniter 41, the igniter 41 detonates sodium azide, the sodium azide is detonated to generate high-pressure nitrogen, the shell 40 wrapping the sodium azide is broken, the battery box 7 is rapidly filled with the sodium azide, and combustion is inhibited.
Because the gas sprayed by the thermal runaway battery is mostly flammable and explosive gas and has low explosion limit, the system is easy to generate internal deflagration after failure, and the damage of the thermal runaway of the battery is increased. The fire extinguishing gas can dilute flammable and explosive gas in the battery system, and damage of secondary detonation to the battery system is reduced.
This embodiment adopts solid-state chemical material to produce fire extinguishing gas to produce nitrogen gas for example, sodium azide can the fast reaction, produces a large amount of nitrogen gas, can play fine fire extinguishing effect, and because the solid-state storage of raw materials, consequently only need occupy several hundred milliliters of volume, and the operation and maintenance cost is close to zero. Therefore, the volume and the weight of the system can be reduced, and the operation and maintenance cost can be reduced.
Specifically, the gas generating agent 42 is, for example, but not limited to, sodium azide (NaN3), and when the igniter 41 is activated, a large amount of fire extinguishing gas is generated by a chemical reaction of the gas generating agent 42, thereby suppressing combustion, and being suitable for extinguishing an electrical fire by an inert gas suffocation mechanism.
The igniter 41 is, for example, but not limited to, an electronic igniter 41. The electronic igniter 41 may be of the type: the BWFD-12 may be of other types, which are specifically set according to actual needs, and this embodiment does not specifically limit this.
The housing 40 may be a housing 40 made of a soft material, for example, a housing 40 made of artificial leather, various flexible plastic films, soft rubber, or the like.
In the specific working process of the fire extinguishing system of the vehicle-mounted battery box 7 in the embodiment, a specified gas concentration threshold, a smoke concentration threshold, an environmental temperature threshold and a collision degree threshold of a fire disaster are preset in the control module 1, the smoke concentration in the battery box 7 is detected in real time through the scattered light type photoelectric smoke detector, the specified gas concentration in the battery box 7 is detected in real time through the gas sensitive sensor, the environmental temperature in the battery box 7 is detected in real time through the temperature sensing cable, and the collision degree in the battery box 7 is detected in real time through the electronic collision sensor 24; then, the control module 1 receives the detection signal transmitted by the detection module 2 in real time, compares the detection signal with a preset signal threshold value, judges whether a fire disaster occurs in the battery box 7, and controls the operation of the alarm module 3 and the fire extinguishing module 4 according to the judgment result.
Specifically, when the designated gas concentration signal is greater than a preset designated gas concentration threshold value, and/or the smoke concentration signal is greater than a preset smoke concentration threshold value, and/or the environment temperature signal is greater than an environment temperature threshold value, and/or the collision degree signal is greater than a collision degree threshold value, it is judged that a fire disaster occurs in the battery box 7, the alarm module 3 is controlled to alarm, and meanwhile, the fire extinguishing module 4 is controlled to extinguish a fire.
In this embodiment, the proposed fire extinguishing system for the vehicle-mounted battery box 7 is characterized in that the detection module 2 is arranged in the battery box 7, the detection module 2 is used for detecting a plurality of indexes such as a gas concentration signal, a smoke concentration signal, an environment temperature signal and a collision degree signal in the battery box 7, and multi-dimensional real-time monitoring of the environment in the battery box 7 is realized, and because the types of data detected by the sensors are generated before a fire disaster occurs, the fire extinguishing module 4 is controlled to act according to the data detected by the sensors, so that fire extinguishing treatment can be performed before the fire disaster occurs, and early warning and judgment are performed on the fire disaster.
In the concrete design of the on-vehicle battery box 7 fire extinguishing systems that this embodiment provided, can divide into the different regions with the battery, separate each other between the region, set up detection module 2 and fire extinguishing module 4 in every district, again by total control module 1 control signal, if there is the district condition of a fire to appear, total control module 1 can open the fire extinguishing module 4 that corresponds the region, handles the condition of a fire more efficiently.
In this embodiment, control module 1, detection module 2 and fire extinguishing module 4 set up inside the box, and as other embodiments, control module 1, detection module 2 and fire extinguishing module 4 can also correspond and set up in the mounting groove that is formed by the inner wall evagination of box.
In this embodiment, the control module 1 and the detection module 2 are separately disposed and arranged, and as another embodiment, the two devices may be integrally disposed.
In the present embodiment, the number of the gas generating agent 42, the igniter 41 and the housing 40 of the fire extinguishing module 4 is calculated according to the amount of the fire extinguishing gas required by the battery box 7, and is greater than the maximum number required by the battery box 7 in number, so as to ensure that the fire extinguishing module 4 can completely extinguish the flame in a short time when the battery box 7 is in a fire, which is not particularly limited in the present embodiment.
Example two
Referring to fig. 6 to 8, the utility model relates to a vehicle-mounted battery box fire extinguishing system, include: the fire extinguishing system comprises a detection module 2, a control module 1, an alarm module 3, a fire extinguishing module 4 and a manual starting module 5; the detection module 2, the control module 1 and the fire extinguishing module 4 are arranged inside the vehicle-mounted battery box 7; the alarm module 3 and the manual starting module 5 are arranged outside the battery box 7; the detection module 2 is connected with the control module 1 to send the acquired detection signal to the control module 1; the control module 1 is respectively connected with the alarm module 3 and the fire extinguishing module 4 so as to control the fire extinguishing module 4 to start fire extinguishing and control the alarm module 3 to alarm when the detection signal reaches a preset threshold value; the manual starting module 5 is connected with the fire extinguishing module 4 to control the fire extinguishing module 4 to start fire extinguishing.
In this embodiment, a plurality of battery cells 8 are disposed in the battery box 7. The detection module 2 comprises one or more of a gas detector 21, a smoke sensor 22, a temperature sensor 23 and an impact sensor 24; the control module 1 is connected with the detection module 2, the alarm module 3 and the fire extinguishing module 4, and the control module 1 is used for acquiring a detection signal from the detection module 2, controlling the fire extinguishing module 4 to extinguish fire according to the detection signal and controlling the alarm module 3 to alarm; the alarm module 3 reminds people in the vehicle that the battery box 7 is likely to have a fire through an acoustic/optical alarm signal; the fire suppression module 4 includes a gas generating agent 42, an igniter 41, and a housing 40.
Specifically, the detection module 2, the control module 1 and the fire extinguishing module 4 are all located inside the vehicle-mounted battery box 7 or are arranged in a mounting groove formed by the outer protrusion of the inner wall of the battery box 7.
Specifically, the gas detector 21 is configured to detect a gas concentration signal; the smoke sensor 22 is used for detecting a smoke concentration signal; the temperature sensor 23 is used for detecting an environment temperature signal; the impact sensor 24 is used to detect an impact level signal. The gas concentration signal selects a characteristic gas concentration signal generated by the combustion process.
The alarm module 3 is connected with the control module 1, and the control module 1 controls the alarm module 3 to alarm according to the detection signal. Specifically, the alarm module 3 comprises a gas alarm unit, a smoke alarm unit, a temperature alarm unit and a collision alarm unit, and each alarm is realized by adopting an indicator lamp or/and a buzzer. During specific implementation, the gas alarm unit, the smoke alarm unit, the temperature alarm unit and the collision alarm unit can be realized by adopting different lights or/and sounds, and can also be realized by adopting the same lights or/and sounds.
In this embodiment, the alarm module 3 is disposed on a vehicle instrument panel, and the control module 1 is connected to the detection module 2, the alarm module 3, and the fire extinguishing module 4 through a CAN bus.
The gas detector 21 can adopt a gas sensor, detects the concentration of the characteristic gas in the specified combustion process, can detect the characteristic gas before or after combustion, and has high sensitivity.
Specifically, when a single battery in the battery box 7 is overcharged due to some reasons to cause the explosion-proof valve to open, the gas of the CO-like and the CO-like 2 decomposed by the electrolyte in the battery box 7 is increased, when the gas detector 21 can detect the gas components and the gas content, the detected data is sent to the control module 1, the control module 1 judges according to the gas data, and when the preset value is met, the fire extinguishing module 4 is controlled to extinguish a fire and the alarm module 3 is controlled to alarm.
The smoke sensor 22 adopts a scattered light type photoelectric smoke detector, so that large particles of generated smoke can be detected before the lithium battery generates open fire and burns, and the response speed is higher.
Specifically, inside because the battery is unusual to be used when battery box 7, perhaps because the collision that the vehicle appears and the battery box 7 body, the battery cell deformation that the collision arouses lead to the inside smog of box to produce, smoke sensor 22 can in time survey to, control module 1 judges according to this smog information, when satisfying the preset condition, controls module 4 of putting out a fire, and control alarm module 3 reports to the police simultaneously.
The temperature sensor 23 is a temperature sensing cable, and can be arranged near each battery pack or at a position where a short-circuit fault is likely to occur, so that an alarm can be given to abnormal heating, and the detection range is wider.
Specifically, when the battery appears overcharging or overdischarging, probably cause the rising of battery temperature, temperature sensor 23 detects the inside temperature of box to give control module 1 with temperature information transmission, control module 1 judges according to temperature information, and when the temperature reached the default, control fire extinguishing module 4 put out a fire, and control alarm module 3 reports to the police simultaneously.
The collision sensor 24 adopts an electronic collision sensor 24, can detect the collision degree in the battery box 7 in real time, if a serious collision accident occurs to the vehicle, the battery is likely to generate thermal runaway or damage and leakage under severe collision, and at the moment, the collision sensor 24 can trigger the fire extinguishing module 4 to work by using a collision signal so as to prevent the serious accident.
In this embodiment, the control module 1 is implemented by using an MCU or a single chip microcomputer, and can be used to determine whether various data transmitted by the detection module 2 meet the fire standard, and if the data meet the fire standard, the corresponding alarm module 3 is started to alarm on the dashboard of the vehicle, and the fire extinguishing module 4 is started to extinguish the fire of the battery box 7.
The control module 1 may process the following:
s1, presetting a specified gas concentration threshold value, a smoke concentration threshold value, an environment temperature threshold value and a collision degree threshold value of fire occurrence;
s2, receiving a specified gas concentration signal, a smoke concentration signal, an environment temperature signal and a collision degree signal in the battery box 7, which are detected by the detection module 2 in real time;
s3, comparing the received detection signal with preset signal thresholds (a specified gas concentration threshold, a smoke concentration threshold, an environment temperature threshold and a collision degree threshold), judging whether a fire disaster occurs in the battery box 7, and controlling the operation of the alarm module 3 and the fire extinguishing module 4 according to the judgment result;
s4, when the fire extinguishing module 4 cannot automatically extinguish fire due to an accident, the manual starting module 5 can be used for extinguishing fire of the battery box 7.
In a specific embodiment, in S3, when the specified gas concentration signal is greater than the preset specified gas concentration threshold, and/or the smoke concentration signal is greater than the preset smoke concentration threshold, and/or the environment temperature signal is greater than the environment temperature threshold, and/or the collision degree signal is greater than the collision degree threshold, it is determined that a fire occurs in the battery box 7, and the alarm module 3 is controlled to alarm, and the fire extinguishing module 4 is controlled to extinguish the fire.
Specifically, can carry out automatic control through control module 1, simultaneously, can also pass through manual control is carried out to manual starting module 5, just so need not control module 1 at this moment, only needs to set up a manual starting device on fire extinguishing agent control valve 44, for example: the fire extinguishing agent control valve 44 is opened by the manual control process of: when a fire occurs in the battery box 7, the control module 1 does not successfully start the fire extinguishing module 4 to extinguish the fire due to an accident, and a driver can manually start the fire extinguishing module 4 to extinguish the fire. The present embodiment includes the above two control modes at the same time.
Specifically, the fire extinguishing module 4 comprises a fire extinguishing agent bottle 43 in which a fire extinguishing agent 45 is arranged; a fire extinguishing agent control valve 44 is arranged on the fire extinguishing agent bottle 43; the control module 1 and the manual starting module 5 are respectively connected with the fire extinguishing agent control valve 44 to open the fire extinguishing agent bottle 43 for fire extinguishing.
The fire extinguishing agent 45 used in the fire extinguishing agent bottle 43 adopts inert gas such as argon or non-combustible gas such as carbon dioxide, and is suitable for extinguishing electrical fire, and the fire extinguishing mechanism is inert gas suffocation.
Specifically, the fire extinguishing agent control valve 44 is an electromagnetic valve, which facilitates the rapid opening of the fire extinguishing agent bottle 43 under the instruction of the control system for fire extinguishing.
Specifically, the manual starting module 5 is arranged outside the battery box 7 and is connected with the fire extinguishing module 4 to directly control the fire extinguishing agent control valve 44. The fire extinguishing system can be started quickly to extinguish fire under unexpected conditions.
In the specific working process of the fire extinguishing system of the vehicle-mounted battery box 7 in the embodiment, a specified gas concentration threshold, a smoke concentration threshold, an environmental temperature threshold and a collision degree threshold of a fire disaster are preset in the control module 1, the smoke concentration in the battery box 7 is detected in real time through the scattered light type photoelectric smoke detector, the specified gas concentration in the battery box 7 is detected in real time through the gas sensitive sensor, the environmental temperature in the battery box 7 is detected in real time through the temperature sensing cable, and the collision degree in the battery box 7 is detected in real time through the electronic collision sensor 24; then, the control module 1 receives the detection signal transmitted by the detection module 2 in real time, compares the detection signal with a preset signal threshold value, judges whether a fire disaster occurs in the battery box 7, and controls the operation of the alarm module 3 and the fire extinguishing module 4 according to the judgment result.
Specifically, when the designated gas concentration signal is greater than a preset designated gas concentration threshold value, and/or the smoke concentration signal is greater than a preset smoke concentration threshold value, and/or the environment temperature signal is greater than an environment temperature threshold value, and/or the collision degree signal is greater than a collision degree threshold value, it is judged that a fire disaster occurs in the battery box 7, the alarm module 3 is controlled to alarm, and meanwhile, the fire extinguishing module 4 is controlled to extinguish a fire.
In this embodiment, the proposed fire extinguishing system for the vehicle-mounted battery box 7 is characterized in that the detection module 2 is arranged in the battery box 7, the detection module 2 is used for detecting a plurality of indexes such as a gas concentration signal, a smoke concentration signal, an environment temperature signal and a collision degree signal in the battery box 7, and multi-dimensional real-time monitoring of the environment in the battery box 7 is realized, and because the types of data detected by the sensors are generated before a fire disaster occurs, the fire extinguishing module 4 is controlled to act according to the data detected by the sensors, so that fire extinguishing treatment can be performed before the fire disaster occurs, and early warning and judgment are performed on the fire disaster.
In the concrete design of the on-vehicle battery box 7 fire extinguishing systems that this embodiment provided, can divide into the different regions with the battery, separate each other between the region, set up detection module 2 and fire extinguishing module 4 in every district, again by total control module 1 control signal, if there is the district condition of a fire to appear, total control module 1 can open the fire extinguishing module 4 that corresponds the region, handles the condition of a fire more efficiently.
In this embodiment, control module 1, detection module 2 and fire extinguishing module 4 set up inside the box, and as other embodiments, control module 1, detection module 2 and fire extinguishing module 4 can also correspond and set up in the mounting groove that is formed by the inner wall evagination of box.
In this embodiment, the control module 1 and the detection module 2 are separately disposed and arranged, and as another embodiment, the two devices may be integrally disposed.
The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.
Claims (10)
1. A vehicle-mounted battery box fire extinguishing module is characterized by comprising: the fire extinguishing system comprises a detection module, a control module, an alarm module, a fire extinguishing module and a manual starting module; the detection module, the control module and the fire extinguishing module are arranged inside the vehicle-mounted battery box; the alarm module and the manual starting module are arranged outside the battery box; the detection module is connected with the control module to send the acquired detection signal to the control module; the control module is respectively connected with the alarm module and the fire extinguishing module so as to control the fire extinguishing module to start fire extinguishing and control the alarm module to alarm when the detection signal reaches a preset threshold value; the manual starting module is connected with the fire extinguishing module to control the fire extinguishing module to start fire extinguishing.
2. The vehicle battery box fire suppression module of claim 1, wherein the fire suppression module comprises a gas generant, an igniter, and a housing; the gas generant and igniter are disposed within the housing; the control module and the manual starting module are respectively connected with the igniter to start the igniter.
3. The vehicle battery box fire extinguishing module according to claim 2, wherein the housing is a housing formed of a soft substance.
4. The vehicle battery box fire suppression module of claim 1, wherein the fire suppression module comprises a fire suppressant bottle having a fire suppressant disposed therein; a fire extinguishing agent control valve is arranged on the fire extinguishing agent bottle; the control module and the manual starting module are respectively connected with the fire extinguishing agent control valve to open the fire extinguishing agent bottle for fire extinguishing.
5. The vehicle-mounted battery box fire extinguishing module according to claim 2 or 4, characterized in that the fire extinguishing module comprises one or more than one; the detection module comprises one or more than one detection module.
6. The on-board battery box suppression module of claim 1, wherein the detection module comprises one or more of a gas detector, a smoke sensor, a temperature sensor, and an impact sensor; the gas detector is used for detecting a gas concentration signal; the smoke sensor is used for detecting a smoke concentration signal; the temperature sensor is used for detecting an environment temperature signal; the collision sensor is used for detecting a collision degree signal.
7. The on-board battery box fire suppression module of claim 6, wherein the gas detector comprises a gas sensor; the smoke sensor comprises a scattered light type photoelectric smoke detector; the temperature sensor comprises a temperature sensing cable; the impact sensor includes an electronic impact sensor.
8. The vehicle battery box fire suppression module according to claim 1, wherein the alarm module is disposed on a vehicle dashboard, including an indicator light and/or a buzzer.
9. The vehicle battery box fire suppression module of claim 1, wherein the manual activation module is disposed at a battery box housing and comprises a manual button; the manual starting module is electrically connected with the fire extinguishing module.
10. The vehicle-mounted battery box fire extinguishing module according to claim 1, wherein the control module is connected with the detection module, the alarm module and the fire extinguishing module through a CAN bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023049485.3U CN214435983U (en) | 2020-12-17 | 2020-12-17 | Vehicle-mounted battery box fire extinguishing module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023049485.3U CN214435983U (en) | 2020-12-17 | 2020-12-17 | Vehicle-mounted battery box fire extinguishing module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214435983U true CN214435983U (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023049485.3U Active CN214435983U (en) | 2020-12-17 | 2020-12-17 | Vehicle-mounted battery box fire extinguishing module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214435983U (en) |
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