CN219783604U - Fire-fighting structure of battery box - Google Patents
Fire-fighting structure of battery box Download PDFInfo
- Publication number
- CN219783604U CN219783604U CN202320617000.0U CN202320617000U CN219783604U CN 219783604 U CN219783604 U CN 219783604U CN 202320617000 U CN202320617000 U CN 202320617000U CN 219783604 U CN219783604 U CN 219783604U
- Authority
- CN
- China
- Prior art keywords
- fire
- battery
- spray head
- battery box
- fighting
- 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.)
- Active
Links
- 239000007921 spray Substances 0.000 claims abstract description 79
- 238000001514 detection method Methods 0.000 claims abstract description 56
- 239000003112 inhibitor Substances 0.000 claims abstract description 54
- 239000012943 hotmelt Substances 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 11
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003063 flame retardant Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims 1
- 238000009792 diffusion process Methods 0.000 abstract description 7
- 230000002401 inhibitory effect Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 description 8
- 238000005507 spraying Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000001629 suppression Effects 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model provides a fire-fighting structure of a battery box, which comprises the battery box, a battery, a fire detection pipe and a fire-fighting inhibitor storage tank, wherein the battery box is provided with a containing cavity; the battery and the fire detecting tube are arranged in the accommodating cavity and are connected with the battery box; the fire-fighting inhibitor storage tank is connected with the fire detection pipe and communicated with the fire detection pipe; the fire detection tube is made of flame-retardant materials; the fire-fighting structure of the battery box further comprises a spray head and a hot melt piece, wherein the spray head is connected with the fire detection pipe, the spray head is provided with a channel communicated with the fire detection pipe, and the spray head faces the battery; the hot melt piece is arranged in the spray head and seals the channel. According to the structure, the fire detection pipe is made of flame-retardant materials, the spray head communicated with the fire detection pipe is arranged, and the channel of the spray head is sealed through the hot-melt sheet, so that when the battery is in thermal runaway eruption of the content, only the hot-melt sheet can be melted at high temperature, and the spray head can guide the inhibitor sprayed by the fire detection pipe so as to accurately spray the inhibitor onto the battery, thereby playing a role in quickly inhibiting fire, and being beneficial to preventing thermal diffusion.
Description
Technical Field
The utility model relates to the technical field of battery boxes, in particular to a fire-fighting structure of a battery box.
Background
The new energy electric automobile adopts battery case and bag to carry out power supply drive more, and the battery package comprises a plurality of battery monomers, battery management system and components such as box, because the battery has thermal runaway risk, can cause huge potential safety hazard and loss of property once the fire, consequently, need set up fire control measure to the battery case to deal with the thermal runaway of battery.
The utility model patent with the prior art of authorizing publication number CN215275503U discloses a fire-detecting tube type battery pack automatic fire extinguishing device, which belongs to the technical field of battery fire extinguishing devices and comprises a battery pack consisting of a plurality of batteries, wherein the top of the battery pack is connected with a top support, a battery box is arranged outside the battery pack, the battery pack is arranged in the battery box, a fire extinguishing agent bottle is arranged in a reserved space on one side of the battery pack in the battery box, a fire-detecting tube is connected to the outside of the fire extinguishing agent bottle and fixedly arranged above the top support and connected with the battery pack.
In the technical scheme, the fire-fighting work is performed by adopting the fire detection pipe. The fire detection tube is called a fire detection tube, and the fire detection tube is used for spraying an inhibitor in a mode of cracking when encountering heat, so that the fire can be inhibited. However, the shape of the fire detection tube is uncertain when the fire detection tube is broken under heat, and the drainage of the inhibitor cannot be realized, so that the inhibitor cannot be precisely sprayed to the fire, and the effect of inhibiting the fire is poor. Especially when the battery is out of control, after a small part of high-temperature content erupts, the content such as electrolyte, core that most lie in the battery can continuously heat up, is in the phenomenon of burning, boiling, once the fire suppression is untimely, and heat transfer extremely easily causes the thermal diffusion to adjacent battery.
Disclosure of Invention
In view of the above, the utility model provides a fire-fighting structure of a battery box, which can drain inhibitor and efficiently inhibit fire, so as to solve the problem that the fire-inhibiting effect of the conventional fire-fighting measures of the battery box is poor.
The technical scheme of the utility model is realized as follows: the utility model provides a fire-fighting structure of a battery box, which comprises the battery box, a battery, a fire detection pipe and a fire-fighting inhibitor storage tank, wherein,
the battery box is provided with a containing cavity;
the battery and the fire detection tube are arranged in the accommodating cavity;
the fire-fighting inhibitor storage tank is arranged in the accommodating cavity, is connected with the fire detection pipe and is communicated with the fire detection pipe;
the fire detection tube is made of flame-retardant materials;
the fire-fighting structure of the battery box also comprises a spray head and a hot melt piece, wherein,
the spray head is connected with the fire detection pipe, is provided with a channel communicated with the fire detection pipe and faces the battery;
and the hot melting piece is arranged in the spray head and seals the channel.
On the basis of the technical proposal, preferably, the fire detecting tube comprises a tube body and a connecting tube, wherein,
the pipe body is connected with the fire-fighting inhibitor storage tank and communicated with the fire-fighting inhibitor storage tank;
the connecting pipe is connected with the pipe body and is communicated with the pipe body;
the spray head is detachably connected with the connecting pipe.
On the basis of the above technical scheme, preferably, one end of the connecting pipe facing the spray head is provided with external threads, one end of the spray head facing the connecting pipe is provided with internal threads, and the spray head is connected with the external threads of the connecting pipe in a screwing way through the internal threads.
On the basis of the technical proposal, the spray head preferably comprises a spray head body and an annular boss, wherein,
the spray head body is screwed and connected with the external thread of the connecting pipe through the internal thread, and the channel is arranged in the spray head body;
the annular boss is arranged in the nozzle body;
one end of the connecting pipe, which faces the spray head, is matched with the annular boss to clamp the hot-melt sheet.
On the basis of the above technical solution, preferably, the hot-melt sheet comprises an annular plate and a hot-melt film, wherein,
the annular plate is clamped and fixed through the connecting pipe and the annular boss;
and the hot melt film is arranged on the annular plate and seals the middle through hole of the annular plate.
On the basis of the above technical solution, preferably, the annular plate is an elastic plate.
On the basis of the above technical scheme, preferably, the spray head is in a horn-shaped structure towards one end of the battery.
On the basis of the above technical solution, preferably, the battery comprises a battery body and an explosion-proof valve, wherein,
the battery body is arranged in the accommodating cavity and is connected with the battery box;
the explosion-proof valve is arranged on the battery body; the spray head faces the explosion-proof valve.
On the basis of the technical proposal, the device preferably further comprises a BMS, a pressure sensor and a switch valve, wherein,
BMS, set up in holding the intracavity, and connect with battery box;
the pressure sensor is connected in series on the fire detection tube and is electrically connected with the BMS;
the switch valve is connected in series on the fire detection pipe, the switch valve is electrically connected with the BMS, and the switch valve is far away from the fire control inhibitor storage tank relative to the pressure sensor.
On the basis of the technical proposal, the battery box preferably comprises a box body and a box cover, wherein,
a case having an opening;
the battery and the fire-fighting inhibitor storage tank are both arranged in the tank body; the box cover is connected with the box body, and the box cover is closed and opened to form a sealed accommodating cavity;
the fire detection pipe is arranged on the box cover.
Compared with the prior art, the fire-fighting structure of the battery box has the following beneficial effects:
(1) The fire detection pipe is made of flame-retardant materials, and is provided with a spray head communicated with the fire detection pipe, and a channel of the spray head is sealed by a hot-melt sheet, so that when the battery is in thermal runaway and erupts the content, only the hot-melt sheet can be melted at high temperature, and the spray head can guide the inhibitor sprayed by the fire detection pipe so as to accurately spray the inhibitor onto the battery, thereby playing a role of quickly inhibiting fire and being beneficial to preventing thermal diffusion;
(2) The spray head and the fire detecting pipe are of a detachable connection structure, and the hot melt sheet is arranged in the spray head, so that the fire detecting pipe can be quickly replaced after abnormal breakage or work breakage of the hot melt sheet occurs, and the repeated utilization of the fire fighting structure is facilitated;
(3) The hot-melt piece is clamped and fixed through the connecting pipe of the fire detection pipe and the annular boss of the spray head, so that the hot-melt piece cannot remain in the spray head when the spray head is replaced, and the spray head is ensured to be unobstructed after the hot-melt piece is replaced;
(4) The hot-melt piece comprises annular plate and hot-melt film two parts, and the annular plate adopts elastic sheet to make, so, connecting pipe and annular boss are centre gripping annular plate, and one of them can avoid causing the hot-melt piece to break when the centre gripping, and its second can rely on the elasticity of annular plate to improve the screw thread connection fastness of shower nozzle and connecting pipe.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a perspective view of an internal structure of a battery box of the fire-fighting structure of the battery box of the present utility model;
FIG. 2 is a top view of the internal structure of the battery box of the fire fighting structure of the battery box of the present utility model;
FIG. 3 is a diagram showing the connection structure of a fire detecting pipe and a nozzle of the fire-fighting structure of the battery box;
FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 3 in accordance with the present utility model;
FIG. 5 is an exploded view of the fire detection tube and the sprinkler head of the fire fighting structure of the battery box of the present utility model;
FIG. 6 is a cross-sectional view taken along the direction B-B in FIG. 4 in accordance with the present utility model;
FIG. 7 is a front view of the fire fighting structure of the battery box of the present utility model;
FIG. 8 is a cross-sectional view taken along the direction C-C in FIG. 7 in accordance with the present utility model;
FIG. 9 is a cross-sectional view of a thermal fuse of the fire-fighting structure of the battery box of the present utility model;
in the figure: the battery box 1, the box body 11, the box cover 12, the accommodating cavity 101, the opening 102, the battery 2, the battery body 21, the explosion-proof valve 22, the fire detecting tube 3, the tube body 31, the connecting tube 32, the external screw thread 301, the fire-fighting inhibitor storage tank 4, the spray head 5, the spray head body 51, the annular boss 52, the channel 501, the internal screw thread 502, the hot melt sheet 6, the annular plate 61, the hot melt film 62, the BMS7, the pressure sensor 8 and the switch valve 9.
Detailed Description
The following description of the embodiments of the present utility model will clearly and fully describe the technical aspects of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.
As shown in fig. 1 to 9, the fire-fighting structure of the battery box of the present utility model includes a battery box 1, a battery 2, a fire-detecting tube 3, a fire-fighting inhibitor storage tank 4, a spray head 5, a hot-melt sheet 6, a BMS7, a pressure sensor 8, and a switching valve 9.
Wherein, the battery box 1 is provided with a containing cavity 101; the battery 2 and the fire detecting tube 3 are arranged in the accommodating cavity 101 and are connected with the battery box 1; the fire-fighting inhibitor storage tank 4 is arranged in the accommodating cavity 101, and is connected with and communicated with the fire detection tube 3. In the above configuration, the battery box 1 is used as a container for mounting the battery 2, the fire detection tube 3, and the fire control inhibitor storage tank 4. The battery box 1 can be made of aluminum profiles through extrusion molding, and can also be made of steel materials through molding.
The fire detection pipe 3 and the spray head 5 are used for spraying fire-fighting inhibitor to inhibit fire, and the fire-fighting inhibitor storage tank 4 is used for storing fire-fighting inhibitor and transmitting the fire-fighting inhibitor to the fire detection pipe 3 for spraying by the spray head 5.
The conventional fire detection tube is made of a hot melt type material, and can be melted and broken after encountering high temperature so as to spray an inhibitor to inhibit fire, but the shape of a hot melt notch of the fire detection tube is not easy to control, so that the condition that the inhibitor cannot be precisely sprayed to a fire place can occur, the effect and the efficiency of inhibiting the fire are affected, and the fire inhibition tube needs to be improved.
Therefore, in the fire-fighting structure of the battery box, the fire detection tube 3 is made of flame-retardant materials; the fire-fighting structure of the battery box further comprises a spray head 5 and a hot melt piece 6, wherein the spray head 5 is connected with the fire detection tube 3, the spray head 5 is provided with a channel 501 communicated with the fire detection tube 3, and the spray head 5 faces the battery 2; a thermal fuse 6 is provided in the head 5 and seals the passage 501. In the above structure, the fire detecting tube 3 is made of a flame retardant material, and may be a metal tube or other high temperature resistant materials, so that the fire detecting tube 3 is not affected when the battery is heated or ignited due to thermal runaway. The nozzle 5 is communicated with the fire detecting tube 3, and a channel 501 of the nozzle 5 is sealed by a hot melt piece 6. When thermal runaway takes place in the battery, the hot melt piece 6 can be impacted to the high temperature flue gas and the high temperature liquid that erupts, and after the hot melt piece 6 received high temperature to melt, the fire control inhibitor in the fire control inhibitor storage tank 4 can be distributed to shower nozzle 5 departments through fire detection pipe 3 to spout through shower nozzle 5, shower nozzle 5 can realize the direction of fire control inhibitor, thereby realize quick, accurate fire extinguishing work, can effectually restrain high temperature diffusion to avoid the battery box to continuously take place thermal runaway.
The arrangement of the structure is also beneficial to inhibiting the fire in the battery box under extreme conditions, for example, when the vehicle is impacted, the fire detection tube 3 is not easy to damage, and the battery box can still work normally. Typically, the cell 2 is single-generation thermal runaway, followed by heat transfer diffusion. However, when the fire extinguishing agent is impacted, a plurality of batteries 2 may be in thermal runaway, if the batteries 2 are in thermal runaway to spray out the content, the traditional fire detecting tube may be broken in a large area, the fire extinguishing agent can be normally sprayed near the fire extinguishing agent storage tank 4, and the fire extinguishing agent cannot reach the fire detecting tube far away from the fire extinguishing agent storage tank 4, so that a great risk of thermal diffusion still exists. This fire detection pipe 3 and the setting of shower nozzle 5, fire detection pipe 3 is difficult for the damage, and shower nozzle 5 can accurately spray the inhibitor, can improve the utilization efficiency of inhibitor, and shower nozzle 5 still can play the effect of control fire control inhibitor flow simultaneously to when a plurality of shower nozzles 5 are opened, can guarantee that a plurality of shower nozzles 5 all can spray the inhibitor, in order to reduce the thermal diffusion risk. Especially for solid fire-fighting material, the structure effect is better, and of course, fire-fighting inhibitor can also use inert gas to dilute oxygen so as to inhibit fire.
In the fire-fighting structure, the fire detection tube 3 comprises a tube body 31 and a connecting tube 32, wherein the tube body 31 is connected with and communicated with the fire-fighting inhibitor storage tank 4; a connection pipe 32 connected to and penetrating the pipe body 31; the nozzle 5 is detachably connected to the connection pipe 32. The nozzle 5 and the connecting pipe 32 are detachably connected, so that the fire-fighting structure can be reused after rapidly extinguishing fire in slight thermal runaway, and only the nozzle 5 with the intact hot-melt sheet 6 needs to be replaced.
Specifically, an external thread 301 is provided at an end of the connection pipe 32 facing the spray head 5, an internal thread 502 is provided at an end of the spray head 5 facing the connection pipe 32, and the spray head 5 is screwed with the external thread 301 of the connection pipe 32 by the internal thread 502. In the above structure, the connecting pipe 32 is connected with the spray head 5 by screw thread fit, so that when the spray head 5 is replaced, tools are not needed, and the shower head has the advantage of convenience in replacement.
Further, the spray head 5 comprises a spray head body 51 and an annular boss 52, wherein the spray head body 51 is screwed with the external thread 301 of the connecting pipe 32 through the internal thread 502, and a channel 501 is formed in the spray head body 51; an annular boss 52 provided in the head body 51; the end of the connecting tube 32 facing the nozzle 5 is fitted with an annular boss 52 to hold the hot melt sheet 6. In the above structure, the nozzle 5 is matched with the connecting pipe 32 through the annular boss 52 to clamp the hot-melt sheet 6, so that after the nozzle 5 is taken down from the connecting pipe 32, the hot-melt sheet 6 remained in the nozzle 5 can be taken out, the hot-melt sheet 6 can not remain in the nozzle 5, and the channel 501 is ensured to be normal after the hot-melt sheet 6 is replaced.
Because the thermal fuse 6 melts and breaks when encountering heat, the structure is relatively low, and the nozzle 5 can squeeze the thermal fuse 6 when screwed with the connecting pipe 32, and the annular boss 52 of the nozzle 5 and the connecting pipe 32 can rub against the thermal fuse 6, so that the risk of damage to the thermal fuse 6 is reduced, and the strength of the thermal fuse 6 needs to be enhanced.
Specifically, the heat fusible link 6 includes an annular plate 61 and a heat fusible film 62, wherein the annular plate 61 is clamped and fixed by the connecting pipe 32 and the annular boss 52; a heat-fusible film 62 provided on the annular plate 61 and closing the central through hole of the annular plate 61. As described above, the connection pipe 32 and the annular boss 52 are clamped on the annular plate 61, which does not contact the hot melt film 62, so that damage to the hot melt film 62 caused when the hot melt sheet 6 is assembled can be avoided, which is advantageous for improving the reliability of the hot melt sheet 6.
Further, the annular plate 61 is an elastic plate. Thus, the annular plate 61 can improve the screw connection firmness of the spray head 5 and the connecting pipe 32 by virtue of elasticity, the annular plate 61 plays a role of an elastic gasket, and the structural reliability can be further improved.
In order to increase the speed of hot melting of the hot melt sheet 6, the nozzle 5 has a horn-like structure toward one end of the battery 2. In this way, after the battery 2 ejects the high temperature content, the horn-shaped nozzle 5 can perform a current collecting function, so that the battery 2 ejects the high temperature content to quickly impact the hot melt sheet, and the hot melt film 62 is broken, thereby spraying the fire-fighting inhibitor.
In the fire-fighting structure, a battery 2 comprises a battery body 21 and an explosion-proof valve 22, wherein the battery body 21 is arranged in a containing cavity 101 and is connected with a battery box 1; an explosion-proof valve 22 provided on the battery body 21; the spray head 5 is directed towards the explosion proof valve 22. The explosion-proof valve 22 is used for spraying high-temperature content generated when the battery 2 is in thermal runaway so as to avoid explosion of the battery 2, the spray head 5 is aligned to the explosion-proof valve 22, and when the explosion-proof valve 22 is rapidly opened due to rapid increase of internal pressure of the battery 2 in thermal runaway, the thermal fuse 6 can be rapidly melted, and the spray head 5 can rapidly spray fire-fighting inhibitor to the battery 2, so that fire suppression effect is improved.
In this fire-fighting structure, the BMS7 is a battery management system for detecting the operating condition of the battery 2. A BMS7 disposed in the accommodating chamber 101 and connected to the battery case 1; the pressure sensor 8 is connected in series with the fire detecting tube 3 and is electrically connected with the BMS 7; the switch valve 9 is connected in series on the fire detection pipe 3, the switch valve 9 is electrically connected with the BMS7, and the switch valve 9 is far away from the fire control inhibitor storage tank 4 relative to the pressure sensor 8. In the above structure, after the hot melt sheet 6 in the spray head 5 breaks, the fire-fighting inhibitor in the fire-fighting inhibitor storage tank 4 is transmitted to the spray head 5 for spraying through the fire detection pipe 3, the fire-fighting inhibitor storage tank 4 is pre-pressurized to supply the fire-fighting inhibitor under pressure, and after the pressure sensor 8 detects the pressure reduction in the fire-fighting inhibitor storage tank 4, a signal can be transmitted to the BMS7, and the BMS7 informs the outside. When the device is applied to the electric automobile, drivers and passengers can be quickly prompted to escape.
The switch valve 9 is in a normally open state, so that the fire-fighting inhibitor storage tank 4 fills the fire-fighting inhibitor into the fire detection tube 3, and the fire detection tube 3 can keep the early warning pressure. When the maintenance or the replacement of parts is performed, the on-off valve 9 is closed, and then the maintenance or the replacement of parts is performed. Specifically, the switch valve 9 may be provided on the fire-extinguishing agent storage tank 4, and the fire detection pipe 3 is connected by the switch valve 9.
Further, the battery box 1 includes a box body 11 and a box cover 12, wherein the box body 11 has an opening 102; the battery 2 and the fire-fighting inhibitor storage tank 4 are both arranged in the box 11; the box cover 12 is connected with the box body 11 and seals the opening 102 to form a sealed accommodating cavity 101; the fire detection pipe 3 is arranged on the case cover 12. In the above structure, the fire detecting tube 3 is arranged on the case cover 12, and when the case cover 12 is mounted on the case body 11, the spray head 5 can be aligned with the battery 2, so that the fire detecting tube has the advantage of convenience in grouping, and is convenient to disassemble and maintain.
The specific implementation steps are as follows:
when the battery 2 is in thermal runaway, the high-temperature content generated by the battery 2 causes the pressure in the battery 2 to rise, so that the explosion-proof valve 22 is broken under pressure, at the moment, the battery 2 ejects the high-temperature content to impact the hot-melt sheet 6, the hot-melt sheet 6 is broken under heating, the fire-fighting inhibitor in the fire-fighting inhibitor storage tank 4 is conveyed to the spray head 5 through the fire detection pipe 3, and the spray head 5 sprays the fire to the battery 2, so that the fire suppression effect is achieved. Meanwhile, as the fire-fighting inhibitor storage tank 4 is lowered in pressure, the pressure sensor 8 transmits the signal to the BMS7, and the BMS7 informs the outside to ensure personnel safety.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. The fire-fighting structure of the battery box comprises the battery box (1), a battery (2), a fire detection tube (3) and a fire-fighting inhibitor storage tank (4), wherein,
the battery box (1) is provided with a containing cavity (101);
the battery (2) and the fire detecting tube (3) are arranged in the accommodating cavity (101);
the fire-fighting inhibitor storage tank (4) is arranged in the accommodating cavity (101), is connected with the fire detection tube (3) and is communicated with each other;
the method is characterized in that: the fire detecting pipe (3) is made of flame-retardant materials;
the fire-fighting structure of the battery box also comprises a spray head (5) and a hot melt piece (6), wherein,
the spray head (5) is connected with the fire detection tube (3), the spray head (5) is provided with a channel (501) communicated with the fire detection tube (3), and the spray head (5) faces the battery (2);
the hot melt piece (6) is arranged in the spray head (5) and seals the channel (501).
2. The battery box fire protection structure of claim 1, wherein: the fire detection tube (3) comprises a tube body (31) and a connecting tube (32), wherein,
the pipe body (31) is connected with the fire-fighting inhibitor storage tank (4) and communicated with each other;
the connecting pipe (32) is connected with the pipe body (31) and is communicated with each other;
the spray head (5) is detachably connected with the connecting pipe (32).
3. The battery box fire protection structure of claim 2, wherein: the shower nozzle is characterized in that an external thread (301) is arranged at one end of the connecting pipe (32) facing the shower nozzle (5), an internal thread (502) is arranged at one end of the shower nozzle (5) facing the connecting pipe (32), and the shower nozzle (5) is connected with the external thread (301) of the connecting pipe (32) in a screwing mode through the internal thread (502).
4. The battery box fire protection structure of claim 3, wherein: the spray head (5) comprises a spray head body (51) and an annular boss (52), wherein,
the spray head body (51) is screwed with the external thread (301) of the connecting pipe (32) through the internal thread (502), and the channel (501) is arranged in the spray head body (51);
the annular boss (52) is arranged in the nozzle body (51);
one end of the connecting pipe (32) facing the spray head (5) is matched with the annular boss (52) to clamp the hot melt piece (6).
5. The battery box fire protection structure of claim 4, wherein: the heat fusible piece (6) comprises an annular plate (61) and a heat fusible film (62), wherein,
the annular plate (61) is clamped and fixed through the connecting pipe (32) and the annular boss (52);
the hot melt film (62) is arranged on the annular plate (61) and seals the middle through hole of the annular plate (61).
6. The battery box fire protection structure of claim 5, wherein: the annular plate (61) is an elastic plate.
7. The fire protection structure for a battery box according to any one of claims 1 to 6, wherein: the spray head (5) is in a horn-shaped structure towards one end of the battery (2).
8. The fire protection structure for a battery box according to any one of claims 1 to 6, wherein: the battery (2) comprises a battery body (21) and an explosion-proof valve (22), wherein,
the battery body (21) is arranged in the accommodating cavity (101) and is connected with the battery box (1);
the explosion-proof valve (22) is arranged on the battery body (21);
the spray head (5) faces the explosion-proof valve (22).
9. The fire protection structure for a battery box according to any one of claims 1 to 6, wherein: also comprises a BMS (7), a pressure sensor (8) and a switch valve (9), wherein,
the BMS (7) is arranged in the accommodating cavity (101) and is connected with the battery box (1);
the pressure sensor (8) is connected in series with the fire detecting tube (3) and is electrically connected with the BMS (7);
the switching valve (9) is connected to the fire detecting pipe (3) in series, the switching valve (9) is electrically connected with the BMS (7), and the switching valve (9) is far away from the fire control inhibitor storage tank (4) relative to the pressure sensor (8).
10. The fire protection structure for a battery box according to any one of claims 1 to 6, wherein: the battery box (1) comprises a box body (11) and a box cover (12), wherein,
the box body (11) is provided with an opening (102);
the battery (2) and the fire-fighting inhibitor storage tank (4) are both arranged in the box body (11);
the box cover (12) is connected with the box body (11) and seals the opening (102) to form a sealed accommodating cavity (101);
the fire detecting pipe (3) is arranged on the box cover (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320617000.0U CN219783604U (en) | 2023-03-27 | 2023-03-27 | Fire-fighting structure of battery box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320617000.0U CN219783604U (en) | 2023-03-27 | 2023-03-27 | Fire-fighting structure of battery box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219783604U true CN219783604U (en) | 2023-10-03 |
Family
ID=88187903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320617000.0U Active CN219783604U (en) | 2023-03-27 | 2023-03-27 | Fire-fighting structure of battery box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219783604U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117815601A (en) * | 2024-03-05 | 2024-04-05 | 四川特威特消防科技有限公司 | Perfluoro-hexanone multi-stage fire extinguishing device for electrical cabinet |
-
2023
- 2023-03-27 CN CN202320617000.0U patent/CN219783604U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117815601A (en) * | 2024-03-05 | 2024-04-05 | 四川特威特消防科技有限公司 | Perfluoro-hexanone multi-stage fire extinguishing device for electrical cabinet |
| CN117815601B (en) * | 2024-03-05 | 2024-06-18 | 四川特威特消防科技有限公司 | Perfluoro-hexanone multi-stage fire extinguishing device for electrical cabinet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109432634B (en) | Fire fighting method of container type lithium ion battery energy storage system | |
| CN219783604U (en) | Fire-fighting structure of battery box | |
| CN209804781U (en) | Battery module and have its vehicle | |
| CN216603874U (en) | Two-stage fire extinguishing system with energy storage battery clusters | |
| CN104882639A (en) | Method and device for restraining and preventing thermal runaway of lithium ion battery | |
| WO2022116908A1 (en) | High-energy lithium battery and large energy storage system comprising same | |
| CN210516927U (en) | Safety protection device for lithium ion battery | |
| CN216928778U (en) | Battery module, battery cluster, fire-fighting equipment and closed energy storage system | |
| CN214596904U (en) | Fire-fighting system of energy storage station | |
| CN113889698B (en) | Energy storage cabinet and fire extinguishing system thereof | |
| CN219941643U (en) | Battery fire extinguishing device and battery pack | |
| CN211530139U (en) | Module box and battery module | |
| CN213401914U (en) | Low-voltage distribution box with fire monitoring function | |
| CN217280954U (en) | Battery pack with fire-fighting inhibiting function | |
| CN211024884U (en) | Battery energy storage system | |
| CN218944200U (en) | Battery energy storage device and fire control system thereof | |
| CN209200034U (en) | Battery pack and vehicle | |
| CN217773051U (en) | Fire extinguishing system | |
| CN215900784U (en) | Energy storage system | |
| CN211962859U (en) | Local total flooding cooperative fire extinguishing device | |
| CN210963690U (en) | Fire extinguishing system | |
| CN113422149A (en) | Lithium iron phosphate battery system with high energy and explosion-proof functions | |
| CN218961630U (en) | Fire extinguishing and fire fighting system of battery changing cabinet and cabinet body structure | |
| CN218890090U (en) | Fire extinguishing device of battery and battery | |
| CN218420736U (en) | Fire extinguishing apparatus and battery module with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |