CN114870299A - Electronic and mechanical double-control battery pack fire extinguishing system - Google Patents
Electronic and mechanical double-control battery pack fire extinguishing system Download PDFInfo
- Publication number
- CN114870299A CN114870299A CN202210647553.0A CN202210647553A CN114870299A CN 114870299 A CN114870299 A CN 114870299A CN 202210647553 A CN202210647553 A CN 202210647553A CN 114870299 A CN114870299 A CN 114870299A
- Authority
- CN
- China
- Prior art keywords
- fire extinguishing
- storage container
- battery pack
- electronic
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/46—Construction of the actuator
- A62C37/48—Thermally sensitive initiators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Battery Mounting, Suspending (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention relates to the field of battery pack fire extinguishing, in particular to an electronic and mechanical double-control battery pack fire extinguishing system. The electronic and mechanical double-control battery pack fire extinguishing system comprises a shell, an electronic fire extinguishing device and a controller, wherein a battery pack and a temperature sensor are arranged in the shell; the electronic fire extinguishing device comprises a first storage container and a first spray head connected with the first storage container, and a spray nozzle of the first spray head is positioned in the shell; when the temperature in the shell reaches a first set temperature, the controller controls the electronic fire extinguishing device to spray fire extinguishing agent into the shell; the mechanical fire extinguishing device comprises a second storage container and a second spray head connected to the bottom of the second storage container, the second storage container is fixed on the outer side of the top of the shell, and a spray nozzle of the second spray head is positioned in the shell; the second nozzle is provided with a nozzle fusible body for plugging the nozzle, and the nozzle fusible body is fused when the temperature in the shell reaches a second set temperature so that the fire extinguishing agent in the second storage container is sprayed into the shell from the nozzle of the second nozzle.
Description
Technical Field
The invention relates to the field of battery pack fire extinguishing, in particular to an electronic and mechanical double-control battery pack fire extinguishing system.
Background
With the introduction of national general environmental strategies, power batteries and energy storage batteries will meet new development peaks. Currently, chemical energy storage represented by lithium ion batteries is widely used. However, the chemical battery has strong instability of the applied compounds, and has a certain probability of generating fire hazard in production and life, thereby causing casualties and property loss.
The principle of fire caused by thermal runaway of chemical batteries based on different compounds is different. But the comprehensive characteristics of the heat-insulating material can generate heat accumulation in the using process, so that the heat runaway is caused, and finally, the fire is caused. From the angle, the method for effectively monitoring the thermal runaway of the energy storage battery in the using process and timely extinguishing the fire after the thermal runaway is the main method for reducing the fire caused by the energy storage battery at present.
The patent of the Chinese utility model with the publication number of CN205924764U provides a battery pack with an automatic fire extinguishing control function, which comprises a shell, a battery module and a fire extinguishing system, wherein the battery module is positioned in the shell; the temperature sensing cable sets up inside the casing for the temperature in the monitoring casing, and well accuse unit controls the fire extinguisher according to the temperature value of temperature sensing cable monitoring and puts out a fire.
In the technology, the central control unit controls the fire extinguisher to extinguish fire according to the temperature value monitored by the temperature sensing cable, and the hollow unit and the temperature sensing cable are both electronic elements and belong to electronic control fire extinguishment; when the central control unit or the temperature sensing cable breaks down, the battery pack can not be put out a fire, and a fire accident can still be caused.
Disclosure of Invention
The invention aims to provide an electronic and mechanical double-control battery pack fire extinguishing system, which aims to solve the problem that the battery pack in the prior art can not extinguish fire due to the failure of an electronic element.
In order to realize the purpose, the invention discloses an electronic and mechanical double-control battery pack fire extinguishing system, which adopts the technical scheme that:
the electronic and mechanical double-control battery pack fire extinguishing system comprises a shell, an electronic fire extinguishing device and a controller, wherein a battery pack and a temperature sensor for monitoring the temperature in the shell are arranged in the shell; the electronic fire extinguishing device comprises a first storage container for storing fire extinguishing agent and a first spray head connected with the first storage container, wherein a nozzle of the first spray head is positioned in the shell; the controller is in signal connection with the temperature sensor and is in control connection with the electronic fire extinguishing device, and when the temperature in the shell reaches a first set temperature, the controller controls the electronic fire extinguishing device to spray fire extinguishing agent into the shell; the fire extinguishing device comprises a first storage container and a first spray head, wherein the first storage container is used for storing fire extinguishing agents, the first spray head is connected to the bottom of the first storage container, the first storage container is fixed on the outer side of the top of the shell, and a nozzle of the first spray head is located in the shell; the second nozzle is provided with a nozzle fusible body for plugging the nozzle, and the nozzle fusible body is fused when the temperature in the shell reaches a second set temperature so that the fire extinguishing agent in the second storage container is sprayed into the shell from the nozzle of the second nozzle.
The beneficial effects are that: the mechanical fire extinguishing device is arranged on the basis of the electronic fire extinguishing device, and the electronic fire extinguishing device adopts an electronic control mode to realize that the first spray head sprays out the fire extinguishing agent; the mechanical fire extinguishing device adopts the technical scheme that when the temperature in the shell reaches the set temperature, the nozzle can be melted, so that the fire extinguishing agent in the second storage container can be sprayed into the shell from the nozzle of the second spray nozzle. The two fire extinguishing devices have different working principles, and can increase the probability of fire extinguishing and reduce the occurrence of fire accidents when a fire disaster occurs.
As a further improvement, a bypass protection circuit is also arranged in the shell and comprises a series circuit connected in series with the main circuit of the battery pack and a parallel circuit connected in parallel with the main circuit of the battery pack; the series circuit is provided with an electromagnet and a fusible conductor which can be melted when the temperature in the shell reaches a set temperature, and the parallel circuit is provided with a disconnecting link; when the battery pack supplies power to the outside, the electromagnet is electrified to adsorb the disconnecting link to disconnect the parallel circuit, and when the fusible conductor is fused, the electromagnet is electrified to release the disconnecting link to conduct the parallel circuit.
The beneficial effects are that: by designing the bypass protection circuit, when the battery pack of the battery pack cannot work due to circuit breaking, the normal work of other battery packs cannot be influenced.
As a further improvement, the spout may be fused to the fusible conductor.
The beneficial effects are that: by the design, the second spray head and the series circuit share the nozzle for melting, and the structure is simplified.
In a further development, the second spray heads are provided with at least two fusible conductors of at least two second spray heads, which are arranged in a series circuit.
The beneficial effects are that: by the design, the series circuit can be broken only by melting the melt in any nozzle.
As a further improvement, the first set temperature is less than the second set temperature.
The beneficial effects are that: design like this, can utilize electronic extinguishing device to carry out the cooling and the fire extinguishing of early fire source, if the temperature continues to rise, recycle mechanical extinguishing device and put out a fire.
As a further improvement, the second spray head comprises an air duct and a connecting pipe arranged on the outer side of the lower end of the air duct, the connecting pipe is connected to the bottom of the second storage container, and the upper end of the air duct is positioned at the top of the second storage container; an annular cavity is formed between the air duct and the connecting pipe, and the nozzle of the second spray head is positioned on the bottom wall of the annular cavity.
The beneficial effects are that: design like this, inside because gaseous perfluor hexanone accessible air duct that the effect of temperature rise produced of first storage container gushes out, and the spout of second shower nozzle also sprays liquid fire extinguishing agent under the internal pressure effect simultaneously, and the gas-liquid mixture's that the spout department produced this moment effect of putting out a fire is better. After the fire is controlled to a certain degree, along with the release of the internal pressure of the first storage container and the cooling of the first storage container by the perfluorohexanone, the pressure in the shell is possibly higher than the pressure in the first storage container, at the moment, the gas in the shell enters the first storage container through the gas guide pipe, and the nozzle of the second spray head is kept to continuously spray the fire extinguishing agent.
As a further improvement, the connecting pipe is screwed at the bottom of the second storage container, and the second storage container is detachably fixed at the top of the shell.
The beneficial effects are that: by the design, the second spray pipe is convenient to replace.
As a further improvement, the gas-guide tube is internally provided with a gas-guide tube fusible body which is fused when the temperature in the shell reaches a second set temperature.
The beneficial effects are that: design like this, when avoiding pouring into fire extinguishing agent or the battery package rocks to second storage container, liquid fire extinguishing agent gets into the casing by the air duct.
As a further improvement, the first storage container is used for storing liquid fire extinguishing agents, the electronic fire extinguishing device further comprises a fire extinguishing agent conveying pipe and a gas storage container used for storing compressed gas, the gas storage container, the first storage container and the first spray head are sequentially connected on the fire extinguishing agent conveying pipe in series, a compressed gas valve is arranged between the gas storage container and the first storage container, a fire extinguishing agent valve is arranged between the first storage container and the first spray head, and the controller is in control connection with the compressed gas valve and the fire extinguishing agent valve.
The beneficial effects are that: compared with a gaseous extinguishing agent, the liquid extinguishing agent with the same volume has better fire extinguishing effect.
As a further improvement, the controller is arranged outside the housing, and the controller has a battery.
The beneficial effects are that: by the design, the controller can not be influenced to control the electronic fire extinguishing device to extinguish fire due to the outage of the battery pack.
Drawings
FIG. 1 is a schematic diagram of the electronic and mechanical dual control battery pack fire suppression system of the present invention;
FIG. 2 is a schematic structural view of a second storage container of FIG. 1;
FIG. 3 is a schematic structural view of the second showerhead shown in FIG. 2;
FIG. 4 is a flow chart of the electronic fire extinguishing apparatus of FIG. 1;
fig. 5 is a flow chart of the mechanical fire extinguishing apparatus of fig. 1.
In the figure: 11. a housing; 12. a battery pack; 13. a first nozzle; 14. a fire extinguishing agent delivery pipe; 15. a series circuit; 16. a second nozzle; 17. a second storage container; 18. a fire suppressant valve; 19. a first storage container; 20. a compressed gas valve; 21. a gas storage container; 22. a valve control circuit; 23. an electromagnet; 24. A storage battery; 25. a control module; 26. a sensor communication line; 27. a disconnecting link; 28. a parallel circuit; 29. A temperature sensor; 30. protecting the load; 31. a main circuit positive electrode line; 32. a main loop negative line; 33. An air duct; 34. a connecting pipe; 35. an annular cavity; 36. the nozzle can be fused; 37. the gas-guide tube can be fused; 38. and a liquid injection port.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the 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 of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, which may be present, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …," or the like, does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, the terms "front", "back", "upper", "lower", "left" and "right" are based on the orientations and positional relationships shown in the drawings and are only for convenience in describing the present invention, but do not indicate that the referred device or component must have a specific orientation, and thus, should not be construed as limiting the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
Embodiment 1 of the electronic and mechanical double-control battery pack fire extinguishing system of the present invention:
as shown in fig. 1, the electronic and mechanical dual-control battery pack fire extinguishing system includes a housing 11, an electronic fire extinguishing apparatus, a mechanical fire extinguishing apparatus and a controller, wherein a battery pack 12 and a temperature sensor 29 are disposed in the housing 11, and the temperature sensor 29 is used for monitoring the temperature in the housing 11. The battery pack 12 includes a battery cell and a battery control board connected in series, and the casing 11 and the battery pack 12 together form a battery pack.
In this embodiment, the battery pack 12 is connected to a main circuit positive line 31 and a main circuit negative line 32, and the main circuit positive line 31 and the main circuit negative line 32 are respectively connected to two adjacent battery packs to realize series connection between the battery packs.
In this embodiment, the electronic fire extinguishing apparatus includes a first storage container 19 for storing fire extinguishing agent and a first spray head 13 connected to the first storage container 19, and a nozzle of the first spray head 13 is located in the housing 11 for spraying the fire extinguishing agent into the housing 11.
Preferably, the first storage container 19 is used for storing liquid fire extinguishing agent, the electronic fire extinguishing apparatus further comprises a fire extinguishing agent delivery pipe 14 and a gas storage container 21 for storing compressed gas, the fire extinguishing agent delivery pipe 14 is a liquid storage tank, and the gas storage container 21 is a gas storage tank. The gas storage container 21, the first storage container 19 and the first spray head 13 are connected in series on the fire extinguishing agent delivery pipe 14 in sequence, a compressed gas valve 20 is arranged between the gas storage container 21 and the first storage container 19, and a fire extinguishing agent valve 18 is arranged between the first storage container 19 and the first spray head 13. Wherein, the controller is in signal connection with the temperature sensor 29 through a sensor communication line 26, and the controller is in control connection with the compressed gas valve 20 and the fire extinguishing agent valve 18 through a valve control line 22; the controller controls the electronic fire extinguishing device to be opened according to the temperature information in the shell 11 monitored by the temperature sensor 29. In use, the compressed gas valve 20 and the fire extinguishing agent valve 18 are opened, and the liquid fire extinguishing agent in the first storage container 19 is pushed by the compressed gas and sprayed out of the first spray head 13. Wherein the compressed gas is charged from the top of the first storage container 19 and the fire extinguishing agent is pressed out from the bottom of the first storage container 19.
In this embodiment, the fire extinguishing agent delivery pipe 14 and the first nozzle 13 both have a certain high temperature resistance and deformation resistance. First shower nozzle 13 is atomizer, makes the fire extinguishing agent atomizing at the fire extinguishing agent spraying in-process, not only can enlarge the spraying face, also helps the quick gasification of liquid fire extinguishing agent simultaneously, reaches the purpose of putting out a fire fast.
In this embodiment, the controller is disposed outside the housing 11, the controller includes the storage battery 24 and the control module 25, the control module 25 is independently powered by the storage battery 24, and the controller is not affected by the power failure of the battery pack 12 to control the electronic fire extinguishing apparatus to extinguish a fire.
As shown in fig. 1, the mechanical fire extinguishing apparatus includes a second storage container 17 fixed to the outside of the top of the housing 11 and a second spray head 16 connected to the bottom of the second storage container 17, the spray nozzle of the second spray head 16 being located in the housing 11 for spraying the fire extinguishing agent into the housing 11. The second storage container 17 is a storage box, and a liquid pouring port 38 is provided in a ceiling thereof.
As shown in fig. 2 and 3, the second spray head 16 includes a gas guide tube 33 and a connecting tube 34 disposed outside the lower end of the gas guide tube 33, the connecting tube 34 is connected to the bottom of the second storage container 17, and the upper end of the gas guide tube 33 is located at the top of the second storage container 17, so that the pressurized gas in the housing 11 can enter the second storage container 17. An annular cavity 35 is formed between the air duct 33 and the connecting pipe 34, the nozzles of the second spray head 16 are positioned on the bottom wall of the annular cavity 35 and are arranged at intervals along the circumferential direction of the connecting pipe, a nozzle fusible body 36 for plugging the nozzles of the second spray head 16 is arranged on the second spray head 16, and the nozzle fusible body 36 is melted when the temperature in the shell 11 reaches a set temperature, so that the fire extinguishing agent in the second storage container 17 flows into the shell 11 from the nozzles of the second spray head 16.
In this embodiment, the gas-guide tube fusible body 37 is disposed in the gas-guide tube 33, the gas-guide tube fusible body 37 is circular, and the gas-guide tube fusible body 37 melts when the temperature in the housing 11 reaches the set temperature. Specifically, after the fusible body 37 of the gas-guide tube is melted, the gaseous perfluorohexanone generated by the temperature rise in the second storage container 17 can flow out through the gas-guide tube 33, and meanwhile, the nozzle of the second nozzle 16 sprays the liquid fire extinguishing agent under the action of the internal pressure, so that the fire extinguishing effect of the gas-liquid mixture generated at the nozzle is better. When the fire is controlled to a certain degree, the pressure inside the housing 11 may be higher than the pressure inside the second storage container 17 due to the release of the internal pressure of the second storage container 17 and the cooling of the second storage container 17 by the perfluorohexanone, and at this time, the gas inside the housing 11 enters the second storage container 17 through the gas pipe 33, and the fire extinguishing agent continues to be sprayed from the nozzle of the second spray head 16.
In this embodiment, the connecting tube 34 and the gas-guiding tube 33 are made of refractory aluminum alloy, and both the spout meltable body 36 and the gas-guiding tube meltable body 37 are fusible conductors, preferably, the fusible conductors are made of lead material, the melting point of lead is 327.45 ℃, and the lead is gasified during melting, so that the obstruction to the fire extinguishing agent spraying can be reduced. In other embodiments, the fusible conductor may be made of a tin alloy material.
In this embodiment, the connection pipe 34 is screwed into the bottom of the second storage container 17, and the second storage container 17 is detachably and hermetically fixed to the top of the housing 11, for example, the second storage container 17 is fixed to the housing 11 by a locking. An insulating layer is provided on the external thread of the connecting tube 34 to prevent the electricity in the series circuit 15 from being conducted to the second storage container 17.
As shown in fig. 1, a bypass protection circuit is further disposed in the housing 11, and includes a series circuit 15 connected in series to the main circuit of the battery pack and a parallel circuit 28 connected in parallel to the main circuit of the battery pack; the series circuit 15 is provided with an electromagnet 23 and the spout fusible body 36, and the parallel circuit 28 is provided with a knife switch 27; when the battery pack 12 supplies power to the outside, the electromagnet 23 electrically adsorbs the disconnecting link 27 to disconnect the parallel circuit 28, when the spout meltable body 36 is melted, the series circuit 15 is disconnected, and the electromagnet 23 loses power to release the disconnecting link 27 to conduct the parallel circuit 28. A protection load 30 is provided on the parallel circuit 28.
In this embodiment, two second nozzles 16 are provided, and the fusible bodies 36 of the two second nozzles 16 are both disposed on the series circuit 15, so that the series circuit 15 can be disconnected only by melting the fusible bodies 36 of any one of the nozzles. In other embodiments, the number of second spray heads may be set as desired.
As shown in fig. 1 and 4, the electronic fire extinguishing apparatus provides a first heavy fire protection guarantee for the battery pack, and after the electronic fire extinguishing apparatus is turned on, the temperature sensor 29 acquires the temperature in the housing 11 in real time, and the controller judges the real-time temperature. Because the thermal runaway of the battery is usually rapid and violent, the controller is required to set a higher temperature sampling frequency so as to judge the fire in time; if temperature sampling is carried out every 5 seconds, when the temperature reaches the first set temperature set by the system, the system gives an alarm, the temperature sampling frequency is increased, sampling is carried out for not less than 20 times within 2 seconds, and abnormal data interference is eliminated. Determining the first set temperature T is reached 0 Then, the system automatically gives an alarm to a master station or a data center through a built-in communication module, the alarm must be reset through manual reset or close-range operation of a palm machine, manual confirmation and check of the fire problem are guaranteed, and potential safety hazards are reduced; meanwhile, the electronic fire extinguishing device is controlled to spray fire extinguishing agent to cool and extinguish the early fire source.
When the temperature in the housing 11 is effectively controlled, the controller controls the electronic fire extinguishing device to stop the spraying of the fire extinguishing agent and monitors the pressure of the gas storage container 21 through the pressure sensing system when the pressure is less than P 0 And then carrying out under-voltage alarm.
When the electronic fire extinguishing apparatus fails to effectively control thermal runaway due to failure or malfunction, the temperature in the housing 11 will continue to rise, and the mechanical fire extinguishing apparatus starts to operate when the second set temperature is reached. As shown in fig. 1 and 5, the nozzle on the second nozzle 16 can melt the melt 36, and the series circuit 15 is disconnected, i.e. the main circuit of the battery pack is cut off; at this time, the electromagnet 23 loses power, the disconnecting link 27 falls down, the parallel circuit 28 is conducted, bypass protection is achieved, and other battery packs can work normally. In addition, after the nozzle of the second nozzle 16 melts the melt 36, the fire extinguishing agent in the second storage container 17 is sprayed out from the nozzle of the second nozzle 16, so as to extinguish the fire.
In this embodiment, perfluorohexanone that is liquid at room temperature is used as the fire extinguishing agent in each of the first storage container 19 and the second storage container 17. The perfluorohexanone is a fluorinated ketone compound, is a clear, colorless and tasteless liquid, and is environment-friendly; the evaporation heat is only 1/25 of water, and the vapor pressure is 25 times of water in the aspect of fire extinguishing performance, so that the fire extinguishing agent is easy to gasify and exists in a gaseous state, the fire extinguishing agent mainly depends on heat absorption to achieve the fire extinguishing effect, the fire extinguishing concentration is 4-6%, and the safety margin is high; the fire extinguishing agent is extremely easy to gasify, and is very convenient for on-site cleaning after fire extinguishing.
In this embodiment, the compressed gas in the gas storage container 21 is nitrogen, which is a very inert gas having stable chemical properties and a very low liquefaction temperature (-196.56 ℃), and is more suitable than a carbon dioxide compressed gas having the same chemical properties (which can condense carbon dioxide into dry ice in a partially cold area).
Embodiment 2 of the electronic and mechanical double-control battery pack fire extinguishing system of the present invention:
the present embodiment is different from embodiment 1 in that, in embodiment 1, the bypass protection circuit realizes bypass protection by fusing the fusible conductor. In this embodiment, the bypass protection circuit controls the electronic switch through the controller to implement bypass protection.
Embodiment 3 of the electronic and mechanical double-control battery pack fire extinguishing system of the present invention:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the nozzle of the second spray head can be a fusible conductor in a series circuit. In this embodiment, the nozzle of the second nozzle may be provided separately from the fusible conductor of the series circuit, and in this case, the fusible conductor of the nozzle of the second nozzle may be a fusible conductor or a fusible nonconductor.
Embodiment 4 of the electronic and mechanical double-control battery pack fire extinguishing system of the present invention:
this embodiment is different from embodiment 1 in that in embodiment 1, a connection pipe is screwed to the bottom of a second storage container detachably fixed to the top of a housing. In this embodiment, the connection pipe is welded to the bottom of the second storage container.
Embodiment 5 of the electronic and mechanical double-control battery pack fire extinguishing system of the present invention:
the present embodiment is different from embodiment 1 in that, in embodiment 1, the second spray head includes an air duct and a connection pipe disposed outside a lower end of the air duct. In this embodiment, the second nozzle only includes the connecting pipe, and the lower extreme of connecting pipe is equipped with the shrouding, is equipped with fusible conductor on the shrouding.
Embodiment 6 of the electronic and mechanical double-control battery pack fire extinguishing system of the present invention:
the present embodiment is different from embodiment 1 in that in embodiment 1, the first storage container is used for storing the fire extinguishing agent in a liquid state, and the electronic fire extinguishing apparatus further includes a fire extinguishing agent delivery pipe and a gas storage container for storing compressed gas. In this embodiment, no gas storage container is provided, and the first storage container is used to store the gaseous extinguishing agent having a certain pressure.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. The electronic and mechanical double-control battery pack fire extinguishing system comprises a shell (11), an electronic fire extinguishing device and a controller, wherein a battery pack (12) and a temperature sensor (29) for monitoring the temperature in the shell (11) are arranged in the shell (11); the electronic fire extinguishing device comprises a first storage container (19) for storing fire extinguishing agent and a first spray head (13) connected with the first storage container (19), wherein a spray opening of the first spray head (13) is positioned in the shell (11); the controller is in signal connection with the temperature sensor (29) and is in control connection with the electronic fire extinguishing device, and when the temperature in the shell (11) reaches a first set temperature, the controller controls the electronic fire extinguishing device to spray fire extinguishing agent into the shell (11); the fire extinguishing device is characterized by further comprising a mechanical fire extinguishing device, wherein the mechanical fire extinguishing device comprises a second storage container (17) used for storing a fire extinguishing agent and a second spray head (16) connected to the bottom of the second storage container (17), the second storage container (17) is fixed on the outer side of the top of the shell (11), and a spray nozzle of the second spray head (16) is positioned in the shell (11); the second spray head (16) is provided with a spout meltable body (36) for blocking the spout of the second spray head, and the spout meltable body (36) is melted when the temperature in the shell (11) reaches a second set temperature, so that the fire extinguishing agent in the second storage container (17) is sprayed into the shell (11) from the spout of the second spray head (16).
2. An electronic and mechanical double controlled battery pack fire extinguishing system according to claim 1, characterized in that a bypass protection circuit is further provided in the housing (11), the bypass protection circuit comprising a series circuit (15) connected in series to the main circuit of the battery pack and a parallel circuit (28) connected in parallel to the main circuit of the battery pack; the series circuit (15) is provided with an electromagnet (23) and a fusible conductor which can be melted when the temperature in the shell (11) reaches a set temperature, and the parallel circuit (28) is provided with a disconnecting link (27); when the battery pack (12) supplies power to the outside, the electromagnet (23) electrically attracts the disconnecting link (27) to disconnect the parallel circuit (28), and when the fusible conductor melts, the electromagnet (23) loses power to release the disconnecting link (27) to conduct the parallel circuit (28).
3. The electronically and mechanically controlled battery pack fire suppression system according to claim 2, wherein said spout fusible body (36) is said fusible electrical conductor.
4. An electronically and mechanically double controlled battery pack fire suppression system according to claim 3, characterized in that the second spray heads (16) are provided with at least two, the fusible conductors of at least two second spray heads (16) being provided on the series circuit (15).
5. The electronically and mechanically controlled battery pack fire suppression system according to any one of claims 1 to 4, wherein the first set temperature is less than the second set temperature.
6. The electronic and mechanical double controlled battery pack fire extinguishing system according to any one of claims 1 to 4, wherein the second spray head (16) comprises a gas guide tube (33) and a connecting tube (34) arranged outside the lower end of the gas guide tube (33), the connecting tube (34) is connected to the bottom of the second storage container (17), and the upper end of the gas guide tube (33) is positioned at the top of the second storage container (17); an annular cavity (35) is formed between the air duct (33) and the connecting pipe (34), and the nozzle of the second spray head (16) is positioned on the bottom wall of the annular cavity (35).
7. The electronic and mechanical double controlled battery pack fire extinguishing system according to claim 6, wherein the connection pipe (34) is screwed at the bottom of the second storage container (17), and the second storage container (17) is detachably fixed at the top of the housing (11).
8. The electronic and mechanical double control battery pack fire extinguishing system according to claim 6, wherein the gas-guide tube fusible body (37) is provided in the gas-guide tube (33), and the gas-guide tube fusible body (37) is melted when the temperature in the housing (11) reaches the second set temperature.
9. The electronic and mechanical double-control battery pack fire extinguishing system according to any one of claims 1 to 4, wherein the first storage container (19) is used for storing liquid fire extinguishing agent, the electronic fire extinguishing apparatus further comprises a fire extinguishing agent delivery pipe (14) and a gas storage container (21) for storing compressed gas, the gas storage container (21), the first storage container (19) and the first spray head (13) are sequentially connected in series on the fire extinguishing agent delivery pipe (14), a compressed gas valve (20) is arranged between the gas storage container (21) and the first storage container (19), a fire extinguishing agent valve (18) is arranged between the first storage container (19) and the first spray head (13), and the controller is in control connection with the compressed gas valve (20) and the fire extinguishing agent valve (18).
10. Electronically and mechanically double controlled battery pack fire extinguishing system according to any of claims 1 to 4, characterized in that the controller is arranged outside the housing (11), the controller having a battery (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210647553.0A CN114870299B (en) | 2022-06-08 | 2022-06-08 | Electronic and mechanical double-control battery pack fire extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210647553.0A CN114870299B (en) | 2022-06-08 | 2022-06-08 | Electronic and mechanical double-control battery pack fire extinguishing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114870299A true CN114870299A (en) | 2022-08-09 |
| CN114870299B CN114870299B (en) | 2023-03-31 |
Family
ID=82682045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210647553.0A Active CN114870299B (en) | 2022-06-08 | 2022-06-08 | Electronic and mechanical double-control battery pack fire extinguishing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114870299B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499027A (en) * | 2019-01-11 | 2019-03-22 | 山东天康达安防科技有限公司 | A kind of perfluor hexanone battery compartment fire extinguishing system |
| CN110051953A (en) * | 2019-05-15 | 2019-07-26 | 智慧式有限公司 | A kind of wisdom formula fire-fighting system |
| CN111790083A (en) * | 2020-07-13 | 2020-10-20 | 烟台创为新能源科技股份有限公司 | Early warning and fire extinguishing system and method for thermal runaway of lithium ion battery |
| CN113730847A (en) * | 2021-08-23 | 2021-12-03 | 广东能源集团科学技术研究院有限公司 | Fire extinguishing system and method of energy storage battery device based on temperature switch |
| WO2022022265A1 (en) * | 2020-07-30 | 2022-02-03 | 哲弗智能系统（上海）有限公司 | Fire extinguishing system, and ship |
| CN114432620A (en) * | 2021-12-28 | 2022-05-06 | 南京能启能电子科技有限公司 | Electrochemistry energy storage power station fire extinguishing system |
-
2022
- 2022-06-08 CN CN202210647553.0A patent/CN114870299B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499027A (en) * | 2019-01-11 | 2019-03-22 | 山东天康达安防科技有限公司 | A kind of perfluor hexanone battery compartment fire extinguishing system |
| CN110051953A (en) * | 2019-05-15 | 2019-07-26 | 智慧式有限公司 | A kind of wisdom formula fire-fighting system |
| CN111790083A (en) * | 2020-07-13 | 2020-10-20 | 烟台创为新能源科技股份有限公司 | Early warning and fire extinguishing system and method for thermal runaway of lithium ion battery |
| WO2022022265A1 (en) * | 2020-07-30 | 2022-02-03 | 哲弗智能系统（上海）有限公司 | Fire extinguishing system, and ship |
| CN113730847A (en) * | 2021-08-23 | 2021-12-03 | 广东能源集团科学技术研究院有限公司 | Fire extinguishing system and method of energy storage battery device based on temperature switch |
| CN114432620A (en) * | 2021-12-28 | 2022-05-06 | 南京能启能电子科技有限公司 | Electrochemistry energy storage power station fire extinguishing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114870299B (en) | 2023-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109432634B (en) | Fire fighting method of container type lithium ion battery energy storage system | |
| CN216603874U (en) | Two-stage fire extinguishing system with energy storage battery clusters | |
| CN213555021U (en) | Lithium battery production line fire extinguishing system | |
| CN110882503A (en) | Fire-fighting system and fire-fighting method of power exchange cabinet | |
| CN112419652A (en) | Fire alarm for plastic tray production line | |
| CN112370692A (en) | Method and device for automatic fire alarm and automatic fire extinguishing of lithium ion battery fire | |
| CN114870299B (en) | Electronic and mechanical double-control battery pack fire extinguishing system | |
| CN209173262U (en) | A kind of car power battery fire extinguishing prevention and control device | |
| CN219783604U (en) | Fire-fighting structure of battery box | |
| CN218944200U (en) | Battery energy storage device and fire control system thereof | |
| CN115719852A (en) | Passive flame-retardant fire-extinguishing battery box and use method thereof | |
| KR20230150432A (en) | Fire suppression system of lithium battery energy storage cabinet | |
| CN218632326U (en) | Passive flame-retardant fire-extinguishing battery box cover plate | |
| CN212141221U (en) | Automatic fire extinguishing electric box | |
| CN113521603A (en) | Twelve-bin charging and battery replacing cabinet with fire-fighting system | |
| CN217961053U (en) | Battery package fire extinguishing systems | |
| CN218961630U (en) | Fire extinguishing and fire fighting system of battery changing cabinet and cabinet body structure | |
| CN220546493U (en) | Distributed electrochemical energy storage safety fire protection system | |
| CN114288588B (en) | Fire early warning system and method for electric vehicle charging shed | |
| CN220914419U (en) | Battery with fire extinguishing function and battery pack | |
| CN213252708U (en) | Energy storage fire extinguishing system | |
| CN218317349U (en) | Aircraft overhead luggage compartment with wisdom fire control function | |
| CN215995365U (en) | Fire-fighting controller based on PLC control and used for lithium battery fire-fighting system | |
| CN213642916U (en) | Fire fighting device for energy storage container | |
| CN220110297U (en) | Fire early warning and fire extinguishing system for energy storage box and cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 461000 plant 3, Xuchang Overseas Students Pioneer Park, Shangde Road, urban and rural integration demonstration zone, Xuchang City, Henan Province Applicant after: Henan Hongshuo Electric Co.,Ltd. Address before: 461000 plant 3, Xuchang Overseas Students Pioneer Park, Shangde Road, urban and rural integration demonstration zone, Xuchang City, Henan Province Applicant before: Henan BAOYING electromechanical Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |