CN113730848A - Fire extinguishing support device for thermal runaway prevention and control of lithium ion battery module - Google Patents
Fire extinguishing support device for thermal runaway prevention and control of lithium ion battery module Download PDFInfo
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- CN113730848A CN113730848A CN202111024130.5A CN202111024130A CN113730848A CN 113730848 A CN113730848 A CN 113730848A CN 202111024130 A CN202111024130 A CN 202111024130A CN 113730848 A CN113730848 A CN 113730848A
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- lithium ion
- ion battery
- pulley
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- 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
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/005—Delivery of fire-extinguishing material using nozzles
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- 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
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- Public Health (AREA)
- Business, Economics & Management (AREA)
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- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a fire extinguishing support device for thermal runaway prevention and control of a lithium ion battery module, which comprises a support frame, wherein lithium ion battery support plates are respectively welded at the bottom and the middle part in the support frame, and the two lithium ion battery support plates are parallel; pulley mechanisms are arranged in the front vertical surface, the rear vertical surface, the left vertical surface, the right vertical surface, the upper horizontal surface and the lower horizontal surface of the supporting frame, a fire-proof curtain rolling mechanism is arranged at the bottom of the supporting frame, fire extinguishing agent conveying pipelines are distributed in the supporting frame, a locking mechanism is arranged on the supporting frame, and a nozzle is also arranged on the pulley mechanism at the top. The high-concentration fire extinguishing concentration can be quickly formed and maintained near the crash lithium ion battery module, the lithium ion battery can be quickly extinguished, the time is won for subsequent disposal work, and the fire extinguishing loss is reduced.
Description
Technical Field
The invention relates to the technical field of fire extinguishing supports, in particular to a fire extinguishing support device for thermal runaway prevention and control of a lithium ion battery module.
Background
The lithium ion battery has outstanding fire safety problem, and brings little difficulty to fire design, especially fire suppression.
At present, the problem of thermal runaway of the lithium ion battery cannot be completely avoided, and once the thermal runaway occurs, effective inhibition measures are not taken, so that the lithium ion battery is possibly subjected to chain thermal runaway so as to develop a large-scale fire.
Aiming at the thermal runaway of the lithium ion battery, the treatment mode in the prior art is to discharge a fire extinguishing agent to the space where the lithium ion battery is located, and form a full-submerged fire extinguishing environment by means of the self-dispersivity and diffusivity of the fire extinguishing agent to realize suppression or fire extinguishing, but the effect of the mode is not ideal.
According to research, the suppression effect of directly and directionally acting the fire extinguishing agent on the thermal runaway lithium ion battery is obviously superior to that of passively forming a full-flooding fire extinguishing mode depending on the fire extinguishing agent. In addition, because the lithium ion battery is usually packaged into a battery module after being regularly arranged by single electric cores in the using mode and then stacked and discharged, once the lithium ion battery module positioned at the stacking center is out of control due to heat, the lithium ion battery module is blocked by the front and back battery modules, the left and right battery modules and the upper and lower battery modules, and a fire extinguishing agent in the environment is not easy to permeate into the lithium ion battery module or can permeate into the lithium ion battery module after a long period of time is consumed to form higher fire extinguishing concentration, so that the optimal fire extinguishing time is influenced.
Disclosure of Invention
The applicant provides a fire extinguishing support device for lithium ion battery module thermal runaway prevention and control aiming at the defects in the prior art, so that high-concentration fire extinguishing concentration can be quickly formed and maintained near a failed lithium ion battery module, the lithium ion battery can be quickly extinguished, time is won for subsequent disposal work, and fire extinguishing loss is reduced.
The technical scheme adopted by the invention is as follows:
a fire extinguishing support device for thermal runaway prevention and control of a lithium ion battery module comprises a support frame, wherein lithium ion battery support plates are welded at the bottom and the middle part in the support frame respectively, and the two lithium ion battery support plates are parallel; pulley mechanisms are arranged in the front vertical surface, the rear vertical surface, the left vertical surface, the right vertical surface, the upper horizontal surface and the lower horizontal surface of the supporting frame, a fire-proof curtain rolling mechanism is arranged at the bottom of the supporting frame, fire extinguishing agent conveying pipelines are distributed in the supporting frame, a locking mechanism is arranged on the supporting frame, and a nozzle is also arranged on the pulley mechanism at the top.
The further technical scheme is as follows:
the support frame is welded into a cuboid structure through twelve angle steels, specifically vertical support angle steels positioned at four corners, and longitudinal support angle steels and transverse support angle steels are welded at the bottom and the top of the vertical support angle steels respectively.
And round holes are uniformly spaced on the lithium ion battery supporting plate.
The structure of a single pulley mechanism is as follows: the sealing device comprises a sleeve, wherein a shaft tube is coaxially arranged in the sleeve, the bottom of the shaft tube is in extrusion contact with the sleeve through a sealing ring and realizes radial sealing, and the shaft tube makes linear reciprocating motion along the axis of the sleeve; the top of central siphon is fixed with the pulley base, linear motion is to the pulley base along with the central siphon, a pair of guide bar is installed through the supporting shoe to sheathed tube outer wall, and it has the spout to open on the guide bar, install the movable pulley through the pulley pivot on the pulley base, movable pulley externally mounted presses the rope lid, and the pulley pivot passes pulley base back both ends simultaneously and inserts in the spout of guide bar, and the movable pulley rotates along the pulley pivot, and the movable pulley is walked around to the pulley rope, and one end is connected fixedly with the rope buckle ring on the sleeve pipe, and the other end is connected with fire prevention curtain rolling mechanism.
The locking mechanism has the structure that: the novel box is characterized by comprising a box body, the box body is of a rectangular structure, the interior of the box body is hollow, a spring seat is arranged on one end face of the interior of the box body, a spring is sleeved on the spring seat, the head of the spring is connected with a pressing tongue, one side of the pressing tongue is processed into an arc-shaped face, the other side of the pressing tongue is a horizontal plane, when external force acts on the arc-shaped face of the pressing tongue, the pressing tongue is pushed to extrude the spring to enter the box body, and when the external force is removed, the pressing tongue can pop out of the box body under the thrust action of the spring.
Two sides of the tongue depressor are provided with symmetrical grooves.
The structure of the fireproof curtain rolling mechanism is as follows: the bottom of the supporting frame is provided with a rotating shaft through a bearing device, the rotating shaft is wound with fireproof cloth, the tail end of the fireproof cloth is pressed through a pressing strip, and a rope buckle ring on the pressing strip is connected with a pulley rope of the pulley mechanism.
The structure of the fire extinguishing agent conveying pipeline is as follows: the pipeline structure comprises a longitudinal pipeline and a transverse pipeline which are matched with the bottom of a supporting frame in shape, the middle of the longitudinal pipeline is connected with a pulley mechanism through a three-way connecting pipe, the corners of the longitudinal pipeline and the transverse pipeline which are positioned at one end are connected through a four-way elbow, the corners of the longitudinal pipeline and the transverse pipeline which are positioned at the other end are connected through a two-way elbow, a middle mounting four-way connecting pipe of the transverse pipeline is provided with a vertical pipeline, and one of the four-way elbow is provided with a vertical pipeline.
The invention has the following beneficial effects:
the lithium ion battery provided by the invention has a wide application prospect as a future energy storage and supply device, but the lithium ion battery in the existing research and development system has the hidden danger of thermal runaway, so that the large-scale popularization and application of the lithium ion battery are limited to a great extent, and the prevention and control for solving the thermal runaway of the lithium ion battery is an important research content in the field of fire fighting, especially the rapid suppression and the fighting of fire caused by the thermal runaway of the lithium ion battery.
The device skillfully uses the fire extinguishing agent under pressure as a fire extinguishing means and a driving power source of the whole device, solves the problem that the fire-proof cloth is tightened from the bottom to the top and is pulled up by utilizing the characteristic of stroke amplification of the movable pulley, isolates the crash lithium ion battery through a relatively airtight and limited space formed by the fire-proof cloth, prevents heat from being transferred and diffused to the outside, maintains long-time and high-concentration fire extinguishing concentration, greatly reduces the influence of the crash lithium ion battery on adjacent batteries and equipment, reduces the thermal runaway diffusion probability among the batteries, and simultaneously improves the disposal speed and the disposal force of the crash lithium ion battery.
Compared with the existing disposal means for releasing the fire extinguishing agent to the whole battery storage room, the device provided by the invention has the advantages that the fire extinguishing efficiency is high, the battery which is not in trouble can be effectively protected, the loss is reduced, the advantages are outstanding, and the effect is obvious.
The device disclosed by the invention is compact in structure, supports modular assembly, and can form a support for quickly extinguishing fire for a large-scale lithium ion battery through modular assembly of the support frame, so that directional quick fire extinguishing can be carried out on a failed lithium ion battery at any position.
The device aims to solve the problems of directional accurate discharge of the fire extinguishing agent when thermal runaway occurs during the storage or use period of the lithium ion battery and reduce the probability of large-scale thermal runaway diffusion caused by heat transfer of a failed lithium ion battery to other normal batteries.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic structural diagram of the present invention (omitting the support plate of the lithium ion battery).
Fig. 4 is a schematic structural view of the rolling mechanism of the fire retardant curtain of the present invention.
Fig. 5 is a schematic view of the construction of a single pulley mechanism of the present invention.
Fig. 6 is a partially enlarged view of a portion B in fig. 5.
Fig. 7 is a partially enlarged view of a portion C in fig. 5.
Fig. 8 is a schematic view of the internal mounting of the sleeve and shaft tube in a single pulley mechanism of the present invention.
Fig. 9 is a schematic structural view of the locking mechanism of the present invention.
Fig. 10 is a front view of the locking mechanism of the present invention.
Fig. 11 is a top view of fig. 10.
Fig. 12 is a full sectional view taken along section D-D in fig. 11.
Fig. 13 is a layout view of fire suppressant delivery lines according to the present invention.
Wherein: 1. a support frame; 2. a pulley mechanism; 3. a locking mechanism; 4. a fire curtain rolling mechanism; 5. a fire extinguishing agent delivery line; 6. a nozzle; 7. a lithium ion battery support plate;
101. vertical support angle steel; 102. longitudinal support angle steel; 103. transverse support angle steel;
201. a sleeve; 202. an axle tube; 203. a seal ring; 204. a guide bar; 205. a pulley base; 206. a pulley rotating shaft; 207. a movable pulley; 208. pressing the rope cover; 209. a pulley rope; 210. a support block;
301. a box body; 302. a spring; 303. tongue depressing; 304. a groove; 305. a spring seat;
401. a bearing device; 402. fireproof cloth; 403. layering;
501. a four-way elbow bend; 502. a two-way elbow bend; 503. a three-way connecting pipe; 504. a four-way connecting pipe; 505. a longitudinal conduit; 506. a transverse conduit; 507. a vertical pipeline.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 13, the fire extinguishing support device for lithium ion battery module thermal runaway prevention and control of the present embodiment includes a support frame 1, lithium ion battery support plates 7 are respectively welded at the bottom and the middle position in the support frame 1, and the two lithium ion battery support plates 7 are parallel; pulley mechanisms 2 are arranged on the front vertical surface, the rear vertical surface, the left vertical surface and the right vertical surface of the supporting frame 1, the upper horizontal surface and the lower horizontal surface of the supporting frame 1, fire-proof curtain rolling mechanisms 4 are arranged on six surfaces of the supporting frame 1, fire extinguishing agent conveying pipelines 5 are distributed in the supporting frame 1, locking mechanisms 3 are arranged above the supporting frame 1, and nozzles 6 are arranged on the pulley mechanisms 2 on the top.
The supporting frame 1 is welded into a cuboid structure through twelve angle steels, specifically, vertical supporting angle steels 101 located at four corners are welded, and a longitudinal supporting angle steel 102 and a transverse supporting angle steel 103 are welded at the bottom and the top of the vertical supporting angle steel 101 respectively.
The lithium ion battery supporting plate 7 is provided with round holes at uniform intervals.
The structure of the single pulley mechanism 2 is as follows: the device comprises a sleeve 201, wherein an axle tube 202 is coaxially arranged in the sleeve 201, the bottom of the axle tube 202 is in extrusion contact with the sleeve 201 through a sealing ring 203 and realizes radial sealing, and the axle tube 202 makes linear reciprocating motion along the axis of the sleeve 201; the top of central siphon 202 is fixed with pulley base 205, pulley base 205 is the linear motion along with central siphon 202, a pair of guide bar 204 is installed through supporting shoe 210 to the outer wall of sleeve pipe 201, it has the spout to open on the guide bar 204, install movable pulley 207 through pulley pivot 206 on the pulley base 205, movable pulley 207 external installation presses rope cover 208, pulley pivot 206 passes pulley base 205 back both ends simultaneously and inserts in the spout of guide bar 204, movable pulley 207 rotates along pulley pivot 206, pulley rope 209 walks around movable pulley 207, one end is connected fixedly with the rope buckle on the sleeve pipe 201, the other end is connected with fire prevention curtain rolling mechanism 4.
The locking mechanism 3 has the structure that: the box body 301 is a rectangular structure, the box body 301 is hollow, a spring seat 305 is arranged on one end face of the interior of the box body 301, a spring 302 is sleeved on the spring seat 305, the head of the spring 302 is connected with a pressing tongue 303, one side of the pressing tongue 303 is processed into an arc-shaped face, and the other side of the pressing tongue 303 is a horizontal plane.
The structure of the fire-proof curtain rolling mechanism 4 is as follows: the bottom of the supporting frame 1 is provided with a rotating shaft through a bearing device 401, the rotating shaft is wound with a fireproof cloth 402, the tail end of the fireproof cloth 402 is pressed through a pressing strip 403, and a rope retaining ring on the pressing strip 403 is connected with a pulley rope 209 of the pulley mechanism 2.
The structure of the fire extinguishing agent conveying pipeline 5 is as follows: the pulley mechanism comprises a longitudinal pipeline 505 and a transverse pipeline 506 which are matched with the bottom of a support frame 1 in shape, the middle of the longitudinal pipeline 505 is connected with a pulley mechanism 2 through a three-way connecting pipe 503, the corners of the longitudinal pipeline 505 and the transverse pipeline 506 which are positioned at one end are connected through a four-way elbow 501, the corners of the longitudinal pipeline 505 and the transverse pipeline 506 which are positioned at the other end are connected through a two-way elbow 502, a four-way connecting pipe 504 is arranged in the middle of the transverse pipeline 506, and a vertical pipeline 507 is further arranged on one four-way elbow 501.
The specific structure and function of the invention are as follows:
the fire-extinguishing agent fire-fighting device mainly comprises a supporting frame 1, a pulley mechanism 2, a locking mechanism 3, a fire-proof curtain rolling mechanism 4, a fire-extinguishing agent conveying pipeline 5, a nozzle 6, a lithium ion battery supporting plate 7 and the like.
As shown in fig. 1 and 3, the supporting frame 1 is constructed by twelve angle steels in a welding manner, and includes four vertical supporting angle steels 101, four longitudinal supporting angle steels 102 and four transverse supporting angle steels 103, and the whole supporting frame 1 is of a rectangular parallelepiped structure.
The lithium ion battery supporting plate 7 is fixedly connected with the supporting frame 1 in a welding mode, and the lithium ion battery module is stored on the lithium ion battery supporting plate 7.
The pulley mechanisms 2 are respectively installed in the front, rear, left and right vertical surfaces and the upper and lower horizontal surfaces of the supporting frame 1, and the components of the pulley mechanisms 2 are shown in fig. 5, 6, 7 and 8.
The pulley mechanism 2 comprises a sleeve 201, a shaft tube 202, a sealing ring 203, a guide rod 204, a pulley base 205, a pulley rotating shaft 206, a movable pulley 207, a rope pressing cover 208, a pulley rope 209 and a supporting block 210.
Wherein shaft tube 202 is arranged in sleeve 201 and the axis coincides, the bottom of shaft tube 202 is in extrusion contact with sleeve 201 through sealing ring 203 to realize radial sealing, and shaft tube 202 can do linear reciprocating motion along the axis of sleeve 201. The pulley base 205 is mechanically installed on the top of the shaft tube 202 to move linearly with the shaft tube 202. The pulley rotation shaft 206 passes through the pulley base 205, and both ends are inserted into the middle grooves of the guide bars 204. The movable pulley 207 can rotate along the pulley rotating shaft 206, the pulley rope 209 passes around the movable pulley 207, one end of the pulley rope is fixedly connected with the rope fastening ring on the sleeve 201, and the other end of the pulley rope is connected with the pressing strip 403 in the fire-proof curtain rolling mechanism 4.
As shown in fig. 9, 10, 11 and 12, the locking mechanism 3 is welded and fixed to the support frame 1, and the locking mechanism 3 is composed of a box 301, a spring 302, a pressing tongue 303 and the like.
One side of the pressing tongue 303 is processed into an arc-shaped surface, the other side is a horizontal surface, the pressing tongue 303 is fixedly connected with the spring 302, when external force acts on the arc-shaped surface of the pressing tongue 303, the pressing tongue 303 can be pushed to extrude the spring 302 and enter the box body 301, and when the external force is removed, the pressing tongue 303 can pop out of the box body 301 under the pushing force of the spring 302.
As shown in fig. 4, the fire-proof curtain rolling mechanism 4 mainly includes a bearing device 401, a fire-proof cloth 402, and a pressing strip 403.
In order to facilitate ventilation and heat dissipation of the battery, the fireproof cloth 402 is rolled and wound on the rotating shaft, the tail end of the fireproof cloth is pressed tightly by the pressing strip 403, and a rope buckle ring on the pressing strip 403 is connected with the pulley rope 209. When one end of the pulley rope 209 is lifted upwards, the fireproof cloth 402 can be driven to rotate around the rotating shaft and be unfolded upwards, the fireproof cloth 402 is made of a low-air-permeability flame-retardant heat-insulating material, and when the battery is in thermal runaway, the heat can be blocked from being transmitted and diffused when the battery is in fire and burns, the heat is limited in a local range, and the fire is prevented from spreading and expanding.
Fire extinguishing agent delivery pipe 5 as shown in fig. 13, the fire extinguishing agent delivery pipe 5 is composed of a four-way elbow 501, a two-way elbow 502, a three-way connecting pipe 503, a four-way connecting pipe 504, a longitudinal pipe 505, a transverse pipe 506, and a vertical pipe 507. Wherein the pipeline is connected with the pipe fittings through sealing threads.
In the actual use process:
the working principle of the lithium ion battery fire extinguishing support is that when a lithium ion battery cell or a lithium ion battery module is out of control thermally, a battery management system of the lithium ion battery or sensors arranged near the lithium ion battery detect and judge that the lithium ion battery is out of control and then send an alarm signal to a fire alarm host, the fire alarm host receives the signal and automatically judges and then starts a gas fire extinguishing program, a control instruction is sent to a gas fire extinguishing device, an electromagnetic starter on the gas fire extinguishing device receives the instruction to act and then opens a container valve to release fire extinguishing agent, the fire extinguishing agent under pressure enters a fire extinguishing conveying pipeline through one end of the outer side of a four-way elbow 501 and then enters six sleeves 201 through pipelines, pipe accessories and the like, the pressure in the sleeves 201 pushes an axle tube 202 to move upwards along the bottom, the axle tube 202 moves with a pulley base 205, and under the limitation of the contact between a guide rod 204 and a pulley rotating shaft 206, the movable pulley 207 moves only linearly upward. The invention reasonably utilizes the stroke amplification characteristic of the pulley mechanism 2, the joint of the pulley rope 209 and the retaining ring on the pressing strip 403 is used as a movable end, and the speed and the displacement of the movable end are twice of those of the movable pulley 207. The pulley mechanism 2 in the four vertical surfaces is used for explaining that when the movable pulley 207 moves linearly from the middle height position of each surface to the top in the initial period, the movable end of the pulley rope 209 also moves linearly from the bottom position of each surface to the top, because the speed and the displacement are doubled, when the movable pulley 207 moves upwards for half the length of the vertical support angle steel 101 and reaches the top, the movable end of the pulley rope 209 moves upwards for one time, the length of the vertical support angle steel 101 also reaches the top, because the movable end of the pulley rope 209 is connected with the pressing strip 403, the pressing strip 403 moves upwards, the rolled and tightened fireproof cloth 402 is pulled upwards and unfolded from the bottom to the top, the fireproof cloth 402 completely shields the four vertical surfaces, and the fire insulation blocking of the failed lithium ion battery module is realized. Meanwhile, when the pulley rotating shaft 206 moves to the top, the arc surface of the pressing tongue 303 in the locking mechanism 3 is extruded, the pressing tongue 303 compresses the spring 302 and then enters the box body 301, and when the pulley rotating shaft 206 passes through the pressing tongue 303, the pressing tongue 303 is popped out under the acting force of the spring 302, so that the falling of the pulley rotating shaft 206 is limited, and the limiting locking function is realized. The principle of unfolding the flameproof fabric 402 in the horizontal plane is the same.
The fire extinguishing agent under pressure is sprayed through a pulley mechanism 2 at the top, as shown in fig. 8, a sleeve 201 in the pulley mechanism 2 is slightly different, and a side branch pipe is arranged at the bottom end of the sleeve 201 and is connected with the nozzle 6 in a threaded mode. Due to the action of the sealing ring 203, the fire extinguishing agent under pressure in the top casing 201 does not discharge when pushing the shaft tube 202, and after the sealing ring 203 passes through the side branch tube, the fire extinguishing agent can be ejected from the side branch tube through the nozzle 6.
The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.
Claims (8)
1. The utility model provides a be used for lithium ion battery module thermal runaway prevention and control to use fire extinguishing support device which characterized in that: the lithium ion battery support plate comprises a support frame (1), wherein lithium ion battery support plates (7) are respectively welded at the bottom and the middle part in the support frame (1), and the two lithium ion battery support plates (7) are parallel; pulley mechanisms (2) are arranged in the front vertical surface, the rear vertical surface, the left vertical surface and the right vertical surface of the supporting frame (1) and in the upper horizontal surface and the lower horizontal surface of the supporting frame, a fireproof curtain rolling mechanism (4) is arranged at the bottom of the supporting frame (1), fire extinguishing agent conveying pipelines (5) are distributed in the supporting frame (1), locking mechanisms (3) are arranged on the supporting frame (1), and nozzles (6) are also arranged on the pulley mechanisms (2) at the top.
2. The fire extinguishing support device for the thermal runaway prevention and control of the lithium ion battery module according to claim 1, wherein: the supporting frame (1) is welded into a cuboid structure through twelve angle steels, specifically is a vertical supporting angle steel (101) positioned at four corners, and a longitudinal supporting angle steel (102) and a transverse supporting angle steel (103) are respectively welded at the bottom and the top of the vertical supporting angle steel (101).
3. The fire extinguishing support device for the thermal runaway prevention and control of the lithium ion battery module according to claim 1, wherein: and round holes are uniformly arranged on the lithium ion battery supporting plate (7).
4. The fire extinguishing support device for the thermal runaway prevention and control of the lithium ion battery module according to claim 1, wherein: the structure of the single pulley mechanism (2) is as follows: the sealing device comprises a sleeve (201), wherein an axle tube (202) is coaxially arranged in the sleeve (201), the bottom of the axle tube (202) is in extrusion contact with the sleeve (201) through a sealing ring (203) and realizes radial sealing, and the axle tube (202) makes linear reciprocating motion along the axis of the sleeve (201); the top of central siphon (202) is fixed with pulley base (205), pulley base (205) is linear motion along with central siphon (202), a pair of guide bar (204) is installed through supporting shoe (210) to the outer wall of sleeve pipe (201), and it has the spout to open on guide bar (204), install movable pulley (207) through pulley pivot (206) on pulley base (205), and movable pulley (207) external mounting presses rope cover (208), and in pulley pivot (206) passed pulley base (205) back both ends and inserted the spout of guide bar (204) simultaneously, movable pulley (207) rotated along pulley pivot (206), and pulley rope (209) are walked around movable pulley (207), and one end is connected fixedly with the rope retaining ring on sleeve pipe (201), and the other end is connected with fire curtain rolling mechanism (4).
5. The fire extinguishing support device for the thermal runaway prevention and control of the lithium ion battery module according to claim 1, wherein: the locking mechanism (3) is structurally characterized in that: including box body (301), box body (301) cuboid structure, the inside of box body (301) is cavity to an inside terminal surface at box body (301) is provided with spring holder (305), set spring (302) on spring holder (305), tongue (303) are pressed in the head connection of spring (302), tongue (303) one side processing is the arcwall face, and one side is the horizontal plane, when external force is in tongue (303) arcwall face department of pressing, promotes tongue (303) extrusion spring (302) and gets into in box body (301), when external force withdraws, tongue (303) can pop out box body (301) under the thrust effect of spring (302).
6. The fire extinguishing support device for the thermal runaway prevention and control of the lithium ion battery module according to claim 5, wherein: two sides of the tongue depressor (303) are provided with symmetrical grooves (304).
7. The fire extinguishing support device for the thermal runaway prevention and control of the lithium ion battery module according to claim 1, wherein: the structure of the fireproof curtain rolling mechanism (4) is as follows: the bottom of the supporting frame (1) is provided with a rotating shaft through a bearing device (401), the rotating shaft is wound with a fireproof cloth (402), the tail end of the fireproof cloth (402) is pressed through a pressing strip (403), and a rope buckle ring on the pressing strip (403) is connected with a pulley rope (209) of the pulley mechanism (2).
8. The fire extinguishing support device for the thermal runaway prevention and control of the lithium ion battery module according to claim 1, wherein: the structure of the fire extinguishing agent conveying pipeline (5) is as follows: the pipeline structure comprises a longitudinal pipeline (505) and a transverse pipeline (506), wherein the shape of the bottom of the supporting frame (1) is matched with that of the bottom of the longitudinal pipeline (505), the middle of the longitudinal pipeline (505) is connected with a pulley mechanism (2) through a three-way connecting pipe (503), the corners of the longitudinal pipeline (505) and the transverse pipeline (506) which are positioned at one end are connected through a four-way elbow (501), the corners of the longitudinal pipeline (505) and the transverse pipeline (506) which are positioned at the other end are connected through a two-way elbow (502), a four-way connecting pipe (504) is installed in the middle of the transverse pipeline (506), and a vertical pipeline (507) is further installed on one four-way elbow (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111024130.5A CN113730848A (en) | 2021-09-02 | 2021-09-02 | Fire extinguishing support device for thermal runaway prevention and control of lithium ion battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111024130.5A CN113730848A (en) | 2021-09-02 | 2021-09-02 | Fire extinguishing support device for thermal runaway prevention and control of lithium ion battery module |
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|---|---|
| CN113730848A true CN113730848A (en) | 2021-12-03 |
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| CN202111024130.5A Pending CN113730848A (en) | 2021-09-02 | 2021-09-02 | Fire extinguishing support device for thermal runaway prevention and control of lithium ion battery module |
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| CN202291894U (en) * | 2011-10-11 | 2012-07-04 | 湖南长丰汽车沙发有限责任公司 | Pneumatic rolling door of robot welding house |
| CN107910606A (en) * | 2017-10-27 | 2018-04-13 | 天津市捷威动力工业有限公司 | A kind of lithium ion battery bag thermal runaway control device |
| CN210521585U (en) * | 2019-05-16 | 2020-05-15 | 上海蔚来汽车有限公司 | Fire-fighting system for charging and replacing power station and charging and replacing power station comprising same |
| CN212935176U (en) * | 2020-09-25 | 2021-04-09 | 北京博瑞翔伦科技发展有限公司 | Power tunnel is with block terminal that has fire resistive construction |
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Application publication date: 20211203 |