CN114470565A

CN114470565A - Battery fire control unit and system

Info

Publication number: CN114470565A
Application number: CN202111593112.9A
Authority: CN
Inventors: 羊众; 周军桥; 李小冬; 王成昆
Original assignee: Jinmao Intelligent Transportation Technology Tianjin Co ltd
Current assignee: Jinmao Intelligent Transportation Technology Tianjin Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-05-13

Abstract

The application provides a battery fire control unit and system belongs to battery technical field. The battery fire fighting device comprises a frame body, a control assembly, a driving assembly, a placing frame and a cooling assembly, wherein the frame body is used for being fixed with the ground, and the control assembly is arranged on the frame body; one end of the driving assembly is connected with the frame body, and the other end of the driving assembly is connected with the placing frame; the rack and the cooling assembly are positioned in the rack body, the cooling assembly is positioned on one side of the rack facing the ground and supported on the ground, the rack and the rack body are in sliding fit in the height direction of the rack body, the rack is used for bearing a fault battery assembly, cooling liquid for cooling the fault battery assembly is stored in the cooling assembly, and the rack with the fault battery assembly can be immersed in or separated from the cooling liquid; the control assembly controls the driving assembly to start or stop so as to drive the placing frame to move or stop within a preset range along the height direction of the frame body. The battery fire-fighting device has high safety.

Description

Battery fire control unit and system

Technical Field

The application relates to the technical field of batteries, in particular to a battery fire fighting device and a battery fire fighting system.

Background

The electric vehicle is a vehicle driven by a motor to run by using a vehicle-mounted power supply as power, the electric vehicle is internally provided with a power battery, the power battery needs to be charged or replaced in the use process of the electric vehicle, generally, the electric vehicle can be continuously and normally used by adopting a mode of replacing the power battery so as not to influence the service life of the power battery, when the battery is replaced, a special replacing station is required to be replaced, the replacing station is internally provided with a plurality of battery bins which are stacked together, each battery bin is internally provided with a plurality of fault battery assemblies which are stacked together, each fault battery assembly comprises an outer battery box and a plurality of power batteries which are positioned in the battery box, when the plurality of power batteries are stacked together, when the battery bins are acted by force or when the environment is changed, the power battery is easy to generate thermal runaway, further, in order to reduce the temperature of the battery box in which the power battery is located, in order to prevent a more disastrous explosion accident, a fire protection system is usually installed in the power station.

However, the fire fighting device included in the fire fighting system in the related art generally only directly conveys the faulty battery assembly into the fire fighting device when cooling the faulty battery assembly, and cannot control the motion state of the faulty battery assembly before the faulty battery assembly enters the fire fighting device.

Therefore, the fire fighting system in the related art has a high risk when the temperature of the faulty battery assembly is lowered.

Disclosure of Invention

In order to solve the problems, the application provides a battery fire fighting device and a battery fire fighting system, which have high safety.

On one hand, the battery fire fighting device comprises a frame body, a control assembly, a driving assembly, a placing frame and a cooling assembly, wherein the frame body is used for being fixed with the ground, and the control assembly is arranged on the frame body; one end of the driving assembly is connected with the frame body, and the other end of the driving assembly is connected with the placing frame; the rack and the cooling assembly are positioned in the rack body, the cooling assembly is positioned on one side of the rack facing the ground and supported on the ground, the rack and the rack body are in sliding fit in the height direction of the rack body, the rack is used for bearing a fault battery assembly, cooling liquid for cooling the fault battery assembly is stored in the cooling assembly, and the rack with the fault battery assembly can be immersed in or separated from the cooling liquid; the control assembly controls the driving assembly to start or stop so as to drive the placing frame to move or stop within a preset range along the height direction of the frame body.

In another aspect, the present application provides a battery fire fighting system, including the above-mentioned battery fire fighting device.

In the battery fire fighting device and the battery fire fighting system, the battery fire fighting device comprises a frame body, a control assembly, a driving assembly, a placing frame and a cooling assembly, wherein the frame body is used for being fixed with the ground, and the control assembly is arranged on the frame body; one end of the driving assembly is connected with the frame body, and the other end of the driving assembly is connected with the placing frame; the rack and the cooling assembly are positioned in the rack body, the cooling assembly is positioned on one side of the rack facing the ground and supported on the ground, the rack and the rack body are in sliding fit in the height direction of the rack body, the rack is used for bearing a fault battery assembly, cooling liquid for cooling the fault battery assembly is stored in the cooling assembly, and the rack with the fault battery assembly can be immersed in or separated from the cooling liquid; the control assembly controls the driving assembly to start or stop so as to drive the placing frame to move or stop within a preset range along the height direction of the frame body. The application provides a battery fire control unit has higher security.

Drawings

FIG. 1a is a first usage state diagram of a first structure of a battery fire fighting device according to an embodiment of the present application;

FIG. 1b is a second state diagram of the first structure of the battery fire fighting device according to the embodiment of the present application;

FIG. 1c is a third state diagram of the first structure of the battery fire fighting device according to the embodiment of the present application;

FIG. 2 is a diagram illustrating a second configuration of a battery fire fighting device according to an embodiment of the present disclosure;

FIG. 3 is a partial schematic structural view of a third structure of a battery fire fighting device according to an embodiment of the present application;

fig. 4a is a schematic view of a first structure of a first frame in a battery fire fighting device according to an embodiment of the present disclosure;

FIG. 4b is a view of FIG. 4a taken along direction A;

fig. 5a is a schematic structural diagram of a first frame body in the battery fire fighting device according to the embodiment of the present application;

FIG. 5B is a view of FIG. 5a taken along direction B;

fig. 6 is a third structural schematic diagram of a first frame body in the battery fire fighting device provided by the embodiment of the present application;

fig. 7 is a first structural schematic diagram of a second frame body in the battery fire fighting device according to the embodiment of the present application;

FIG. 8 is a second structural diagram of a second frame of the battery fire fighting device according to the embodiment of the present disclosure;

fig. 9a is a schematic structural diagram of a first structure of a rack in a battery fire fighting device according to an embodiment of the present application;

FIG. 9b is an enlarged view of a portion of the structure at C in FIG. 9 a;

fig. 10 is a schematic structural diagram of a second structure of a rack in a battery fire fighting device according to an embodiment of the present application;

FIG. 11 is an enlarged view of a portion of the structure shown at D in FIG. 10;

FIG. 12 is an enlarged view of a portion of the structure at E in FIG. 2;

FIG. 13 is an enlarged view of a portion of the structure at F in FIG. 1 b;

fig. 14 is a partial structural schematic view of a support part in the battery fire fighting device provided in the embodiment of the present application;

fig. 15a is a schematic structural diagram of a support frame in a battery fire fighting device according to an embodiment of the present application;

FIG. 15b is an enlarged view of a portion of the structure at G in FIG. 15 a;

FIG. 16a is an enlarged view of a portion of the structure at H in FIG. 1 a;

FIG. 16b is an enlarged view of a portion of the structure at I in FIG. 1 c;

FIG. 17 is a schematic diagram of a first configuration of a cooling module in a battery fire protection device according to an embodiment of the present disclosure;

FIG. 18 is an enlarged view of a portion of the structure at J in FIG. 1 b;

FIG. 19 is a schematic diagram of a second configuration of a cooling module in a battery fire protection device according to an embodiment of the present disclosure;

FIG. 20 is a schematic diagram of a cooling water pipe in a battery fire fighting device according to an embodiment of the present disclosure;

fig. 21 is a schematic structural diagram of a battery fire fighting system according to an embodiment of the present application.

Fig. 22 is a schematic structural diagram of a part of a battery fire fighting system provided in an embodiment of the present application.

Description of reference numerals:

10-battery fire fighting devices; 1-a frame body; 11-a first frame body; 111-a first rectangular frame; 112-a first upright; 113-a first hanging part; 114-a first reinforcement; 115-a second rectangular frame; 116-a second reinforcement; 117 — a first connection; 118-a third reinforcement; 119-a second connecting portion; 120-a third rectangular frame; 130-a fourth reinforcement; 140-fifth reinforcement; 12-a second frame body; 121-a support frame; 1211-a stop; 1212-stop face; 1213-a support; 1214-a chute; 1215-mounting a plate; 1216-connecting plate; 13-a sixth rectangular border; 2-a control component; 21-a travel switch; 3-a drive assembly; 4-placing the rack; 41-a limiting part; 411-a limiting surface; 412-a guide slot; 42-a fourth rectangular border; 421-an extension; 43-a fifth rectangular border; 44-a second hanging part; 441-a base; 442-hanging ring; 4421-bottom arm; 45-a third column; 46-a sixth reinforcement; 47-a third connecting portion; 48-a seventh reinforcement; 49-a pulley; 5-a cooling assembly; 51-a liquid storage cavity; 52-a water tank; 53-support legs; 54-a cushioning guide; 55-water pipe; 56-one-way valve; 57-a support plate; 58-universal wheel; 6-a cooling water pipe; 61-a tube body; 611-a three-way interface; 62-fire sprinkler head; 7-a connecting frame; 20-failed battery assembly; 30-a flange; 40-a control unit; 50-an early warning unit; 60-an alarm unit; 70-a stacking unit; 100-battery fire protection system; h 1-first length; h 2-second length; h 3-third length.

Detailed Description

In the using process of the electric vehicle, the power battery in the electric vehicle needs to be replaced so as to enable the electric vehicle to be produced and used, when power batteries are replaced, a special replacement station is usually needed to replace the power batteries, a plurality of battery bins stacked together are arranged in the replacement station, each battery bin is internally provided with a plurality of fault battery assemblies stacked together, each fault battery assembly comprises an outer battery box and a plurality of power batteries positioned in the battery box, when a plurality of power batteries are stacked together, when the battery compartment is acted by force or the environment is changed, the power batteries are easy to generate thermal runaway, further triggering the battery explosion event, in order to cool the battery box where the power battery generating thermal runaway is located, in order to prevent more disastrous explosion accidents, a fire protection system is generally arranged in a power conversion station in the related art.

For a detailed description of the battery fire protection system in the related art, two battery fire protection systems are listed below to better illustrate the technical problem to be solved by the present application.

Example one: chinese patent CN202021436707.4 discloses a battery fire fighting device and system for a power station, which includes a battery fire box, a battery tray, a first guiding mechanism and a second guiding mechanism; the battery fire-fighting box comprises a frame and a plurality of sealing plates, wherein the sealing plates are arranged on the bottom surface and a plurality of side surfaces of the frame; the sealing plates, one side face of which is close to the top face of the battery fire box, are provided with holes, and a cavity body for placing liquid substances is formed in the sealing plates; the battery tray is placed in the frame and above the cavity body through the first guide mechanism, the battery tray is used for placing the fault battery pack, and the first guide mechanism is used for lowering the fault battery pack into the liquid substance; the second guiding mechanism is connected with the battery fire box, the second guiding mechanism and the hole lower edge are located on the same plane, and the second guiding mechanism is used for moving the fault battery pack to the battery tray from the battery rack.

Before the fault battery pack is put into the liquid material, the fault battery pack is in a motion state all the time, if the fault battery pack is subjected to secondary explosion in the motion process, a more serious accident can be caused, and therefore the safety of the battery replacing station fire protection device and the system is low.

Example two: chinese patent CN202022426669.0 discloses a fire-fighting water tank and a battery stereoscopic warehouse fire-fighting system comprising the same, wherein the fire-fighting water tank comprises a supporting frame, a cargo platform and a stop lever, a water tank body is installed at the lower part in the supporting frame, the cargo platform is horizontally arranged above the water tank body, the stop lever is vertically arranged at one side of the water tank body, the stop lever vertically slides along the supporting frame through a frame body, and drives the cargo platform to descend into or ascend out of the water tank body through a transmission assembly; the battery stereoscopic warehouse fire-fighting system comprises a smoke sensing system detector, a PLC (programmable logic controller), a stacker and a fire-fighting water tank; the smoke sensing system is used for sensing a thermal runaway accident of the warehouse and transmitting thermal runaway accident information to the PLC; the PLC receives the thermal runaway accident information and sends a fire alarm triggering instruction to the stacker according to the thermal runaway accident information; the stacker takes out thermal runaway battery goods according to the fire alarm triggering instruction and sends the thermal runaway battery goods to a goods platform of a fire water tank; the fire-fighting water tank and the stacker are in linkage fit to extinguish fire and cool thermal runaway battery goods.

The cargo platform lifting mechanism belongs to a pure mechanical structure, cannot control a cargo platform in real time, cannot control a fault battery pack in the moving process in real time, and can cause more serious accidents if the fault battery pack undergoes secondary explosion, so that the safety of the fire-fighting water tank and a battery stereoscopic warehouse fire-fighting system comprising the fire-fighting water tank is lower; in addition, foretell battery stereoscopic warehouse fire extinguishing system is in the use, and cargo platform's descending speed needs to rely on the descending speed of stacker, and the practicality is lower.

In order to overcome above-mentioned defect, the embodiment of the application provides a battery fire control unit and system, wherein, battery fire control unit can the exclusive use, and the practicality is higher, in addition, drive assembly among the battery fire control unit can drive the storage rack of placing trouble battery pack and can move promptly and stop in a certain extent, on the one hand, can promote the cooling efficiency to trouble battery pack, on the other hand, before trouble battery pack does not get into cooling module, if trouble battery pack takes place secondary explosion, can in time handle trouble battery pack.

The embodiments of the present application will be described in detail below with reference to the accompanying drawings and detailed description.

In the following description, the height direction of the frame body 1 coincides with the z-axis direction in fig. 1a to 1c, fig. 2, fig. 3, fig. 4a, fig. 5a, fig. 6, fig. 7, fig. 8, fig. 9a, fig. 10, fig. 15a, fig. 17, and fig. 19; the first direction coincides with the x-axis direction in fig. 1a to 1c, fig. 2, fig. 3, fig. 4a, fig. 5a, fig. 6, fig. 7, fig. 8, fig. 9a, fig. 10, fig. 15a, fig. 17, and fig. 19; the second direction coincides with the y-axis direction in fig. 1a to 1c, fig. 2, fig. 3, fig. 4a, fig. 5a, fig. 6, fig. 7, fig. 8, fig. 9a, fig. 10, fig. 15a, fig. 17, and fig. 19.

Referring to fig. 1a to fig. 2, in which, fig. 1a is a first usage state diagram of a first structure of a battery fire fighting device according to an embodiment of the present application; FIG. 1b is a second usage state diagram of the first structure of the battery fire fighting device according to the embodiment of the present application; FIG. 1c is a third state diagram of the first structure of the battery fire fighting device according to the embodiment of the present application; fig. 2 is a use state diagram of a second structure of the battery fire fighting device provided by the embodiment of the application.

As shown in fig. 1a to 2, the present embodiment provides a battery fire fighting device 10, which includes a frame body 1, a control assembly 2, a driving assembly 3, a placing frame 4 and a cooling assembly 5, in a specific embodiment of the present embodiment, the frame body 1 is used for being fixed to the ground, and the control assembly 2 is disposed on the frame body 1; one end of the driving component 3 is connected with the frame body 1, and the other end of the driving component 3 is connected with the placing frame 4; the rack 4 and the cooling assembly 5 are both positioned in the rack body 1, the cooling assembly 5 is positioned on one side of the rack 4 facing the ground and supported on the ground, the rack 4 is in sliding fit with the rack body 1 in the height direction of the rack body 1, and the rack 4 is used for bearing the faulty battery assembly 20; the cooling assembly 5 is provided with a liquid storage cavity 51, cooling liquid used for cooling the faulty battery assembly 20 is stored in the liquid storage cavity 51, specifically, the cooling liquid can be water, and the placing frame 4 on which the faulty battery assembly 20 is placed can be immersed into or separated from the cooling liquid; the control component 2 controls the driving component 3 to start or stop so as to drive the placing frame 4 to move or stop within a preset range along the height direction of the frame body 1. In this way, the control component 2 can implement real-time control on the driving component 3, and the faulty battery component 20 is in a proper position according to actual conditions, so that the safety of the battery fire fighting device 10 provided by the embodiment is high.

Please refer to fig. 1a, fig. 1b, fig. 1c and fig. 3, wherein fig. 3 is a partial structural schematic diagram of a third structure of a battery fire fighting device provided in an embodiment of the present application.

As shown in fig. 1a, 1b, 1c and 3, in some optional embodiments, the rack body 1 includes a first rack body 11 and a second rack body 12 distributed along a height direction thereof and detachably connected to each other, the first rack body 11 is located on a side of the second rack body 12 away from the ground, the second rack body 12 is used for being supported on the ground, one end of the driving assembly 3 is connected to the first rack body 11, the control assembly 2 is disposed on the second rack body 12, the rack 4 and the cooling assembly 5 are both located in the second rack body 12, and the rack 4 and the second rack body 12 are slidably fitted in the height direction of the second rack body 12.

The structure of the first frame 11 will be described in detail below.

Please refer to fig. 1a to 1c and fig. 3 to 6, wherein fig. 4a is a first structural schematic diagram of a first frame of a battery fire fighting device according to an embodiment of the present disclosure; FIG. 4a is a view of FIG. 4a taken along direction A; fig. 5a is a schematic structural diagram of a first frame body in the battery fire fighting device according to the embodiment of the present application; FIG. 5B is a view of FIG. 5a taken along direction B; fig. 6 is a third structural schematic diagram of a first frame body in the battery fire fighting device provided in the embodiment of the present application.

As shown in fig. 1a to 1c and fig. 3 to 6, in a specific embodiment of the present embodiment, the first frame 11 includes a first rectangular frame 111 and four first vertical columns 112 connected to the first rectangular frame 111, a long side frame of the first rectangular frame 111 extends along a first direction, a short side frame of the first rectangular frame 111 extends along a second direction, the four first vertical columns 112 are respectively disposed at four corners of the first rectangular frame 111, an extending direction of the first vertical columns 112 is identical to a height direction of the frame 1, the first vertical columns 112 are configured to be detachably connected to the second frame 12, in order to connect a first end of the driving assembly 3 to the first frame 11, a first hanging portion 113 extending along the second direction is disposed in the first rectangular frame 111, and the first hanging portion 113 is configured to be connected to the first end of the driving assembly 3.

In this embodiment, the driving assembly 3 may be an electric hoist, and one end of the electric hoist is hung on the first hanging portion 113.

In order to reinforce the structure of the first frame 11, specifically, in order to reinforce the structure of the first rectangular frame 111, in this embodiment, the first frame 11 further includes two first reinforcing portions 114 distributed at intervals along the first direction, the first reinforcing portions 114 are connected between two long frames of the first rectangular frame 111, and the first hanging portion 113 is located between the two first reinforcing portions 114.

As shown in fig. 1a to 1c, 4a and 4b, in some alternative embodiments, in order to further reinforce the structure of the first frame body 11, the first frame body 11 further includes a second rectangular frame 115, two second reinforcing parts 116, four first connecting parts 117, four third reinforcing parts 118 and two second connecting parts 119, wherein the second rectangular frame 115 is located on a side of the first rectangular frame 111 facing the second frame body 12, the second rectangular frame 115 is equal in size to the first rectangular frame 111, and the first upright 112 penetrates through a corresponding corner of the second rectangular frame 115 in the height direction of the frame body 1 and is connected to a corresponding corner of the second rectangular frame 115; the extending direction of the second reinforcing part 116 is consistent with the extending direction of the first reinforcing part 114, the second reinforcing part 116 and the first reinforcing part 114 are arranged in a one-to-one correspondence manner in the height direction of the frame body 1, two third reinforcing parts 118 are connected between the correspondingly arranged first reinforcing part 114 and the second reinforcing part 116, and an included angle is formed between the extending direction of the third reinforcing parts 118 and the height direction of the frame body 1; two second connecting portion 119 are connected between two first rib 114, and the extending direction of second connecting portion 119 is unanimous with length direction, and first hanging portion 113 is connected between two second connecting portion 119, like this for the structure of first support body 11 is more stable, in order to bear the pulling force that electric block produced to it.

As shown in fig. 3 and 5a to 6, in other alternative embodiments, the first frame 11 further includes a third rectangular frame 120 and four fourth reinforcing portions 130, the third rectangular frame 120 is located on a side of the first rectangular frame 111 facing away from the second frame 12, a size of the third rectangular frame 120 is smaller than a size of the first rectangular frame 111, an extending direction of a long border of the third rectangular frame 120 is consistent with the first direction, an extending direction of a short border of the third rectangular frame 120 is consistent with the second direction, an extending length of a long border of the third rectangular frame 120 is equal to a shortest distance between the two first reinforcing portions 114, the long border of the first rectangular frame 111 is connected to a corresponding long border of the third rectangular frame 120 through the two fourth reinforcing portions 130, and an extending direction of the fourth reinforcing portions 130 forms an included angle with a height direction of the frame 1. Thus, the mass of the first frame 11 can be reduced, the manufacturing process of the first frame 11 can be simplified, and the first frame 11 can be easily manufactured and transported.

Further, as shown in fig. 6, in order to reinforce the structure of the first frame 11, in some embodiments, the first frame 11 further includes four fifth reinforcing parts 140, and a fifth reinforcing part 140 is connected between the long frame of the first rectangular frame 111 and the corresponding first upright 112, so that the first frame 11 has a more stable structure.

In a specific embodiment of this embodiment, in order to further strengthen the structure of the first frame body 11, a welding connection manner is adopted for the connection between the structural members, for example, the connection between the first rectangular frame 111 and the first upright 112, and the connection between the other structural members is not described, and further, in this embodiment, a square tube of 100mm × 100mm is adopted for each structural member of the first frame body 11, for example, the long side frame and the short side frame of the first rectangular frame 111 are both square tubes of 100mm × 100mm, and the long side frame and the short side frame of the first rectangular frame 111 are connected by welding to form the first rectangular frame 111.

It should be noted that the above two structures of the first frame body 11 can be used in the battery fire fighting device 10 provided in this embodiment, and the specific structure of the first frame body 11 is not limited herein.

The structure of the second frame 12 will be described in detail below.

Please refer to fig. 1a to 3, 7 and 8, wherein fig. 7 is a first structural schematic diagram of a second frame body in a battery fire fighting device according to an embodiment of the present application; fig. 8 is a second structural schematic diagram of a second frame body in the battery fire fighting device provided in the embodiment of the present application.

As shown in fig. 1a to 3, 7 and 8, the second frame 12 includes two supporting frames 121 spaced apart along a first direction, the supporting frames 121 include two stopping portions 1211 spaced apart along a height direction thereof, each stopping portion 1211 has a stopping surface 1212 facing another stopping portion 1211, the two stopping surfaces 1212 are spaced apart by a first length h1 along the height direction of the frame 1, for detachable connection with the first frame 11, the second frame 12 further includes two supporting portions 1213 spaced apart along a second direction, each supporting portion 1213 is a second upright column corresponding to the first upright column 112, the first direction and the height direction of the frame 1 are both perpendicular to the second direction, the extending direction of the supporting portions 1213 is consistent with the height direction of the frame 1, each stopping portion 1211 is connected between the two supporting portions 1213, and the extending direction of each stopping portion 1211 is consistent with the second direction, as shown in fig. 1a to 1c, As shown in fig. 3, 7 and 8, in some alternative embodiments, the first end of the blocking portion 1211 is connected to one of the two supporting portions 1213, and the second end of the blocking portion 1211 is connected to the other of the two supporting portions 1213, as shown in fig. 2, in other alternative embodiments, the first end of the blocking portion 1211 is connected to the supporting portion 1213, and the second end of the blocking portion 1211 is suspended, and there is no particular limitation on the extending length of the blocking portion 1211 in the second direction.

In order to realize the detachable connection between the first frame 11 and the second frame 12 and the detachable connection between the second frame 12 and the ground, in this embodiment, the bottom of the first upright 112 is provided with a flange 30, the top and the bottom of the second upright are both provided with flanges 30, and the flange 30 at the top of the second upright is used for connecting with the flange 30 at the bottom of the first upright 112, so as to realize the detachable connection between the first frame 11 and the second frame 12; the flange 30 at the bottom of the second vertical column is used for being connected with the bottom surface to realize the connection between the second frame body 12 and the ground, so as to connect the frame body 1 with the ground.

In order to further strengthen the structure of the second frame body 12, the connection manner between the structural members is a welding connection manner, for example, the connection between the supporting portion 1213 and the stopping portion 1211, and the connection between the other structural members is not described, and further, in this embodiment, each structural member of the second frame body 12 is a square tube of 100mm × 100mm, for example, the supporting portion 1213 and the stopping portion 1211 are square tubes of 100mm × 100 mm.

Please refer to fig. 1a to 2, 9 and 10, wherein fig. 9a is a schematic view illustrating a first structure of a rack in a battery fire fighting device according to an embodiment of the present disclosure; FIG. 9b is an enlarged view of a portion of the structure at C in FIG. 9 a;

fig. 10 is a schematic structural diagram of a second structure of a rack in a battery fire fighting device according to an embodiment of the present application.

As shown in fig. 1a to 2 and 9a to 10, in order to enable the rack 4 to move or stop within a predetermined range along the height direction of the rack body 1, in this embodiment, the rack 4 has a limiting portion 41, the limiting portion 41 is located between two stopping portions 1211, the limiting portion 41 has two limiting surfaces 411 distributed at intervals along the height direction of the rack body 1, the limiting surfaces 411 and the stopping surfaces 1212 are arranged correspondingly, the interval distance between the two limiting surfaces 411 in the height direction of the rack body 1 is a second length h2, and the maximum distance that the rack 4 moves along the height direction of the rack body 1 is smaller than or equal to the difference between the first length h1 and the second length h 2. Like this, can restrict the displacement distance of rack 4, at certain height range, rack 4 can remove or stop, when trouble battery pack 20 takes place secondary explosion, can in time handle trouble battery pack 20.

In a specific embodiment of this embodiment, the rack 4 includes a fourth rectangular frame 42 and a fifth rectangular frame 43 that are distributed at intervals along the height direction of the rack body 1, the fourth rectangular frame 42 and the fifth rectangular frame 43 are equal in size and are oppositely disposed in the height direction of the rack body 1, wherein the fourth rectangular frame 42 is located on one side of the fifth rectangular frame 43 that is away from the cooling assembly 5, the extending directions of the long frames of the fourth rectangular frame 42 and the fifth rectangular frame 43 are both consistent with the first direction, the extending directions of the short frames of the fourth rectangular frame 42 and the fifth rectangular frame 43 are both consistent with the second direction, and the two ends of the long frame of the fourth rectangular frame 42 along the extending direction thereof form extending portions 421, the limiting portions 41 are disposed in one-to-one correspondence with the extending portions 421, and the limiting portions 41 are detachably connected to the ends of the extending portions 421 or are integrally formed with the extending portions 421, in order to connect the fourth rectangular frame 42 and the fifth rectangular frame 43, the rack 4 further includes four third upright posts 45, and the third upright posts 45 are used for connecting corresponding corners of the fourth rectangular frame 42 and the fifth rectangular frame 43.

In order to fix the second end of the electric hoist to the rack 4, in this embodiment, a second hanging portion 44 extending along the second direction is disposed on the fourth rectangular frame 42, the second end of the electric hoist is hung on the second hanging portion 44, the faulty battery assembly 20 is located between the fourth rectangular frame 42 and the fifth rectangular frame 43, and the faulty battery assembly 20 is disposed on the fifth rectangular frame 43.

In order to strengthen the structure of the placement frame 4, as shown in fig. 9a, in some alternative embodiments, the placement frame 4 may further include four sixth reinforcing portions 46 and two third connecting portions 47, an extending direction of the sixth reinforcing portions 46 is consistent with the second direction, an extending direction of the third connecting portions 47 is consistent with the first direction, the two third connecting portions 47 are disposed at intervals in the second direction, two long frames of the fourth rectangular frame 42 and two long frames of the fifth rectangular frame 43 are connected by the two sixth reinforcing portions 46, the two sixth reinforcing portions 46 located in the fourth rectangular frame 42 are connected by the two third connecting portions 47, and the second hanging portion 44 is connected between the two third connecting portions 47.

Please refer to fig. 2, fig. 10 and fig. 11, wherein fig. 11 is an enlarged schematic view of a portion of the structure at D in fig. 10.

As shown in fig. 2 and 11, in other alternative embodiments, the driving assembly 3 may include two electric hoists, in which case, the frame body 1 only includes the second frame body 12, the top of the second frame body 12 is welded with the sixth rectangular frame 13, the corners of the sixth rectangular frame 13 are connected with the corresponding second upright posts, and the two electric hoists are respectively in one-to-one correspondence with the two short frames of the sixth rectangular frame 13, specifically, the first ends of the electric hoists are hung on the short frames of the sixth rectangular frame 13, the second ends of the electric hoists are hung on the short frames of the fourth rectangular frame 42, in this case, there are two second hanging portions 44, and the second hanging portions 44 are arranged on the short frames corresponding to the fourth rectangular frame 42, specifically, the second hanging portions 44 may include a base 441 and a hanging ring 442, the base 441 is detachably connected with the short frames of the fourth rectangular frame 42, and the hanging ring 442 is rotatably connected with the base 441, the hanging ring 442 is U-shaped, and the second end of the electric hoist is hung on the bottom arm 4421 of the U-shaped hanging ring 442.

When the driving assembly 3 includes two electric hoists, in order to strengthen the structure of the rack 4, as shown in fig. 10, the rack 4 may further include a plurality of seventh reinforcing portions 48, an extending direction of the seventh reinforcing portions 48 is the same as the second direction, and the seventh reinforcing portions 48 are connected between the two long frames of the fourth rectangular frame 42, or the seventh reinforcing portions 48 are connected between the two long frames of the fifth rectangular frame 43, and the number of the seventh reinforcing portions 48 connected between the two long frames of the fourth rectangular frame 42 is equal to the number of the seventh reinforcing portions 48 connected between the two long frames of the fifth rectangular frame 43, and the seventh reinforcing portions 48 are corresponding in position.

Please refer to fig. 2 and fig. 12, wherein fig. 12 is an enlarged schematic view of a portion of the structure at E in fig. 2.

Specifically, as shown in fig. 2 and fig. 11, when the maximum distance that the rack 4 moves along the height direction of the rack body 1 is equal to the difference between the first length h1 and the second length h2, the limiting surface 411 can abut against the corresponding stop surface 1212, that is, when the rack 4 is in the initial state, the limiting surface 411 at the upper end abuts against the upper stop surface 1212, that is, the limiting portion 41 abuts against the upper stop portion 1211; when the rack 4 is lowered to the lowest position, the limiting surface 411 at the lower end abuts against the lower stop surface 1212, that is, the limiting portion 41 abuts against the lower stop portion 1211.

In order to improve the stability of the rack 4 moving in the height direction of the rack body 1, in the present embodiment, the limiting portion 41 is in sliding fit with the supporting portion 1213 in the height direction of the rack body 1.

Please refer to fig. 1a to fig. 1c, fig. 9a, fig. 9b, and fig. 13, wherein fig. 13 is an enlarged schematic view of a portion of the structure at F in fig. 1 b.

As shown in fig. 1a to 1c, 9a, 9b and 13, in order to achieve the sliding fit between the position-limiting portion 41 and the supporting portion 1213, the position-limiting portion 41 has a guide groove 412, the guide groove 412 has two groove walls, and the two groove walls of the guide groove 412 are perpendicular to each other, wherein the extending direction of one groove wall is consistent with the first direction, the extending direction of the other groove wall is consistent with the second direction, the guide groove 412 penetrates the position-limiting portion 41 along the height direction of the rack body 1, the notch of the guide groove 412 faces the supporting portion 1213, that is, the groove wall of the guide groove 412 faces the corresponding side wall surface of the supporting portion 1213, so that the guide groove 412 is in sliding fit with the supporting portion 1213 in the height direction of the rack body 1.

In order to prevent the rack 4 from being collided with the support portion 1213 by an external force during the movement, in some embodiments, a gap is formed between the wall of the guide groove 412 and the support portion 1213 in the first and second directions, so that the rack 4 can be prevented from being collided with the support portion 1213.

Specifically, the gap between the groove wall of the guide groove 412 and the support portion 1213 may be 5mm, and here, the size of the gap is not particularly limited.

Further, in order to prevent the rack 4 from being damaged due to collision between the rack 4 and the support portions 1213, in a specific embodiment of the present embodiment, the position-limiting portion 41 may be made of a nylon material, so that the hardness of the position-limiting portion 41 is less than that of the support portions 1213, and the rack 4 can be protected. In some other embodiments, the limiting portion 41 may be made of other kinds of materials, and the type of the material of the limiting portion 41 is not limited.

Please refer to fig. 10 and 14, wherein fig. 14 is a partial structural schematic view of a support portion in a battery fire fighting device provided in an embodiment of the present application.

As shown in fig. 10 and 4, in other alternative embodiments, the end of the position-limiting portion 41 may be provided with a pulley 49, the axial direction of the pulley 49 is perpendicular to the height direction of the frame body 1, in some specific embodiments, the axial direction of the pulley 49 is along the second direction, and in order to realize the sliding fit between the position-limiting portion 41 and the support portion 1213, correspondingly, the support portion 1213 is provided with a sliding slot 1214, the extending direction of the sliding slot 1214 is consistent with the height direction of the frame body 1, and the pulley 49 and the sliding slot 1214 are in the sliding fit in the height direction of the frame body 1. In this way, the sliding fit between the limiting part 41 and the supporting part 1213 can be realized, so as to improve the stability of the placing rack 4 in the lifting process.

It should be noted that, in order to further strengthen the structure of the rack 4, the connection manner between the structural members is a welded connection manner, for example, the connection between the fourth rectangular frame 42 and the third upright 45, and the connection between the other structural members is not described one by one, and further, in this embodiment, each structural member of the rack 4 is a square tube of 100mm × 100mm, for example, the long frame and the short frame of the fourth rectangular frame 42 are both square tubes of 100mm × 100mm, and the long frame and the short frame of the fourth rectangular frame 42 are connected by welding to form the fourth rectangular frame 42.

Further, in order to prevent the rack 4 from rusting after entering the cooling liquid, in this embodiment, the rack 4 may be provided with a waterproof, anticorrosive and antirust coating, and the specific components of the coating are not limited herein.

In some other embodiments, the maximum distance that the rack 4 moves along the height direction of the rack 1 may also be less than the difference between the first length h1 and the second length h 2. Please refer to fig. 1a to 1c, fig. 7, fig. 15a, fig. 15b, fig. 16a and fig. 16b, wherein fig. 15a is a schematic structural view of a support frame in a battery fire fighting device according to an embodiment of the present disclosure; FIG. 15b is an enlarged view of a portion of the structure at G in FIG. 15 a; FIG. 16a is an enlarged view of a portion of the structure at H in FIG. 1 a; fig. 16b is an enlarged view of a portion of the structure at I in fig. 1 c.

As shown in fig. 1a to 1c, fig. 7, fig. 15a, fig. 15b, fig. 16a and fig. 16b, in the present embodiment, the control assembly 2 includes two travel switches 21, the travel switches 21 are disposed on an inner sidewall of two sidewalls of the support portion 1213 distributed along the second direction, where the inner sidewall refers to a sidewall opposite to the other support portion 1213, the travel switches 21 are electrically connected to a motor inside the electric hoist, the two travel switches 21 are distributed at intervals in the height direction of the rack body 1, the two travel switches 21 are located between two stop portions 1211 in the height direction of the rack body 1, the travel switches 21 are disposed corresponding to the limit surface 411, and the limit surface 411 can contact with the travel switches 21 to close the travel switches 21, so that the travel switches 21 control the drive assembly 3 to be closed. Specifically, travel switch 21 has contact portion 211, and contact portion 211 has the contact, and two contacts set up relatively, and spacing face 411 can contact with two contacts that correspond, and the spacing distance of two contacts on support body 1 direction of height is third length h3, and the maximum distance that rack 4 removed along support body 1 direction of height equals the difference between third length h3 and second length h 2.

Specifically, when the rack 4 is in an initial state, the limiting surface 411 at the upper end is in contact with the contact of the travel switch 21 above; when the rack 4 descends to the lowest position, the limiting surface 411 at the lower end contacts with the contact of the travel switch 21 at the lower position. In this way, the rack 4 can be moved within a certain height range.

In order to prevent the secondary explosion of the failed battery assembly 20 during the descending process of the rack 4, in some alternative embodiments, as shown in fig. 8, a mounting plate 1215 may be disposed on one side of the support portion 1213, and the mounting plate 1215 may be provided with an accessible remote control unit (not shown), such as a remote controller, for controlling the driving assembly 3 to start or stop when the rack 4 does not contact the travel switch 21, so that the driving assembly 3 can drive the rack 4 to move or stop. Thus, when the secondary explosion of the failed battery assembly 20 is predicted, the driving assembly 3 is stopped, and the movement of the rack 4 is stopped to transport the failed battery assembly 20 to a safe area.

It should be noted that in some other embodiments, the driving assembly 3 may also adopt a hydraulic lifting structure, and the hydraulic lifting structure is not described in detail herein.

In order to achieve the cooling of the faulty battery assembly 20, the cooling assembly 5 in the present embodiment is described below.

Please refer to fig. 1a to 2 and 17 to 19, wherein fig. 17 is a first structural schematic diagram of a cooling assembly in a battery fire fighting device according to an embodiment of the present application; FIG. 18 is an enlarged view of a portion of the structure at J in FIG. 1 b; fig. 19 is a schematic diagram of a second structure of a cooling assembly in a battery fire fighting device according to an embodiment of the present application.

As shown in fig. 1a to 2 and 17 to 19, the cooling assembly 5 includes a water tank 52 and support legs 53 located at four corners of the bottom of the water tank 52, a liquid storage cavity 51 is formed in an inner cavity of the water tank 52, the support legs 53 are supported on the ground, a buffer guide portion 54 is disposed at the top of the water tank 52, the buffer guide portions 54 and the third columns 45 are disposed in a one-to-one correspondence manner, the third columns 45 and the buffer guide portions 54 are in sliding fit in the height direction of the rack body 1, so that the rack 4 enters or leaves the liquid storage cavity 51 along the height direction of the rack body 1, wherein, in order to prevent the rack 4 from colliding with the water tank 52, the water tank 52 or the rack 4 is damaged, in this embodiment, a gap is formed between the rack 4 and the buffer guide portion 54, and the hardness of the buffer guide portion 54 is smaller than that of the rack 4.

Specifically, the buffer guide 54 may be made of nylon, and the thickness of the buffer guide 54 may be between 8mm and 10mm, and herein, the material type and thickness of the buffer guide 54 are not particularly limited.

It should be noted that, in this embodiment, the water tank 52 and the supporting legs 53 may be made of carbon structural steel, such as Q235A, while the supporting legs 53 may be square tubes of 80mm × 80mm, and the inside of the water tank 52 may be coated with the same coating as the surface of the rack 4 for corrosion and rust prevention; here, the material of the water tank 52 and the support leg 53 is not particularly limited.

In order to inject the cooling liquid into the liquid storage cavity 51 or discharge the cooling liquid in the liquid storage cavity 51 after cooling the faulty battery assembly 20, in this embodiment, the bottom of the water tank 52 is provided with a water pipe 55 communicated with the liquid storage cavity 51, specifically, one end of the water pipe 55 is communicated with the liquid storage cavity 51, the other end of the water pipe 55 is heard by the outside, and the water pipe 55 is provided with a one-way valve 56, so that the cooling liquid can be injected into the liquid storage cavity 51 or discharged.

It should be noted that, in order to improve the efficiency of injecting or discharging the cooling liquid, in a specific embodiment of the present embodiment, a plurality of water pipes 55 may be disposed at the bottom of the water tank 52, and the number of the water pipes 55 is not limited herein.

Further, in order to improve the stability of the cooling assembly 5, in this embodiment, a supporting plate 57 may be further provided at the bottom of the supporting leg 53, and a projected area of the supporting plate 57 in the height direction of the frame body 1 is larger than a projected area of the supporting leg 53 in the direction. In this way, the support performance of the support legs 53 can be improved, and the stability of the cooling module 5 can be improved.

As shown in fig. 19, in some alternative embodiments, the supporting legs 53 may further be provided with universal wheels 58 having a self-locking function for moving the cooling module 5, so that the cooling module 5 can be moved conveniently and saves time and labor.

Please refer to fig. 1a to fig. 3 and fig. 20, wherein fig. 20 is a schematic structural diagram of a cooling water pipe in a battery fire fighting device according to an embodiment of the present application. In order to improve the cooling effect of the battery fire fighting device 10 provided by the present embodiment on the faulty battery assembly 20, as shown in fig. 1a to 3 and 10, the battery fire fighting device 10 of the present embodiment may further include a cooling water pipe 6, the cooling water pipe 6 being disposed at the bottom of the second rectangular frame 115, or, is disposed on the top of the second housing 12, and when the cooling water pipe 6 is disposed on the top of the second housing 12, the supporting frame 121 further includes a connecting plate 1216 provided on the stopper 1211 positioned above, the connecting plate 1216 being used to fix the cooling water pipe 6, and in particular, the cooling water pipe 6 includes a pipe body 61 and a plurality of fire sprinklers 62 provided on the pipe body 61, and in order to make the fire sprinklers 62 self-start, a sensing member, such as a sensor, may be provided inside the water tank 52, and when the sensor senses that the temperature inside the water tank 52 is high, the fire sprinkler head 62 is activated to spray coolant against the malfunctioning battery assembly 20 within the water tank 52.

In some embodiments, in order to inject the cooling liquid into the pipe body 61, the pipe body 61 may be provided with a three-way port 611, and the cooling liquid may be injected into the pipe body 61 through the three-way port 611.

Further, in the above description, all the detachable connection modes may be connected by a threaded fastener, and all the fixed connection modes may be welded connection modes, which is not always described herein.

It should be noted that the usage principle of the battery fire fighting device 10 provided in this embodiment will be described in detail in the following system embodiments, and will not be described herein.

Referring to fig. 21, fig. 21 is a schematic structural diagram of a battery fire fighting system according to an embodiment of the present application.

As shown in fig. 21, the embodiment further provides a battery fire fighting system 100, which includes the above battery fire fighting device 10, a control unit 40, an early warning unit 50, an alarm unit 60, and a stacking unit 70, where the alarm unit 60 and the early warning unit 50 are both electrically connected to the control unit 40, the early warning unit 50 is configured to detect a faulty battery assembly 20 and transmit an acquired explosion signal to the control unit 40, and after receiving the explosion signal, the control unit 40 controls the alarm unit 60 to send out an alarm signal.

Specifically, after detecting the faulty battery assembly 20, the worker opens the stacking unit 70, the stacking unit 70 has a yoke and a transmission track, the yoke forks the faulty battery assembly 20 and then places the faulty battery assembly on the transmission track, the transmission track transports the faulty battery assembly 20 to the battery fire fighting device 10, the faulty battery assembly 20 is forked into the rack 4 by the yoke, after the faulty battery assembly 20 is placed, the battery fire fighting device 10 is powered on, at this time, the driving assembly 3 drives the rack 4 to descend, when the limiting surface 411 at the lower end abuts against the travel switch 21 or the stopping portion 1211 located below, the rack 4 stops descending, at this time, the faulty battery assembly 20 is completely immersed in the cooling liquid, if the detecting assembly located in the water tank 52 detects that the temperature in the water tank 52 is higher than the rated temperature, the fire sprinkler head 62 sprays water to the faulty battery assembly 20, after the temperature of the surface of the water tank 52 rises by at least 60 degrees, it is indicated that the cooling of the faulty battery assembly 20 is completed, and then the limiting part 41 is detached from the fourth rectangular frame 42, the placing frame 4 is separated from the driving assembly 3, and the cooling assembly 5, the faulty battery assembly 20 and the placing frame 4 are moved together to a scrapped battery processing area for subsequent processing.

Referring to fig. 22, fig. 22 is a schematic view of a partial structure of a battery fire fighting system according to an embodiment of the present application.

In order to connect the stacking unit 70 with the battery fire fighting device 10, as shown in fig. 21, in some embodiments, the battery fire fighting device 10 may further include a connecting frame 7 detachably connected to the upper end of the rack body 1, and the connecting frame 7 is used to connect with the rail of the stacking unit 70. Here, the structure of the link frame 7 is not particularly limited.

It should be noted that the structure of the battery fire fighting device 10 in the present embodiment has been described in detail in the above embodiments, and is not described herein again.

The battery fire fighting system comprises a battery fire fighting device, wherein the battery fire fighting device comprises a frame body, a control assembly, a driving assembly, a placing frame and a cooling assembly, the frame body is used for being fixed with the ground, and the control assembly is arranged on the frame body; one end of the driving assembly is connected with the frame body, and the other end of the driving assembly is connected with the placing frame; the rack and the cooling assembly are positioned in the rack body, the cooling assembly is positioned on one side of the rack facing the ground and supported on the ground, the rack and the rack body are in sliding fit in the height direction of the rack body, the rack is used for bearing a fault battery assembly, cooling liquid for cooling the fault battery assembly is stored in the cooling assembly, and the rack with the fault battery assembly can be immersed in or separated from the cooling liquid; the control assembly controls the driving assembly to start or stop so as to drive the placing frame to move or stop within a preset range along the height direction of the frame body. The battery fire fighting device in the embodiment has higher safety, so that the battery fire fighting system provided by the embodiment has higher safety.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. The battery fire fighting device is characterized by comprising a frame body, a control assembly, a driving assembly, a placing frame and a cooling assembly, wherein the frame body is used for being fixed with the ground, and the control assembly is arranged on the frame body; one end of the driving assembly is connected with the rack body, and the other end of the driving assembly is connected with the placing rack; the rack and the cooling assembly are both positioned in the rack body, the cooling assembly is positioned on one side of the rack body facing the ground and supported on the ground, the rack and the rack body are in sliding fit in the height direction of the rack body, the rack is used for bearing a fault battery assembly, cooling liquid for cooling the fault battery assembly is stored in the cooling assembly, and the rack on which the fault battery assembly is positioned can be immersed into or separated from the cooling liquid;

the control assembly controls the driving assembly to start or stop so as to drive the placing frame to move or stop within a preset range along the height direction of the frame body.

2. The battery fire fighting device of claim 1, wherein the rack body comprises two support frames spaced apart along a first direction, the first direction being perpendicular to a height direction of the rack body; the support frame comprises two stopping parts which are distributed at intervals along the height direction of the support frame, each stopping part is provided with a stopping surface facing the other stopping part, and the interval distance between the two stopping surfaces in the height direction of the frame body is a first length;

the rack has spacing portion, spacing portion is located two between the backstop portion, spacing portion has two edges the spacing face of direction of height interval distribution of support body, spacing face with the backstop face corresponds the setting, two spacing face is in spacing distance in the direction of height of support body is second length, the rack is followed the maximum distance that the direction of height of support body removed is less than or equal to first length with the difference of second length.

3. The battery fire fighting device of claim 2, wherein a maximum distance that the rack moves in the height direction of the rack is equal to a difference between the first length and the second length;

the limiting surface can be abutted against the corresponding stop surface.

4. The battery fire fighting device according to claim 2 or 3, wherein the control assembly comprises a remote control unit and two travel switches, the travel switches are electrically connected with the driving assembly, the two travel switches are distributed at intervals in the height direction of the rack body and are located between the two stopping portions in the height direction of the rack body, the travel switches are arranged corresponding to the limiting surfaces, and the limiting surfaces can be in contact with the travel switches to close the travel switches so that the travel switches control the driving assembly to be closed;

when the placing frame does not contact the travel switch, the remote control unit is used for controlling the driving assembly to start or stop.

5. The battery fire fighting device of claim 4, wherein a maximum distance that the rack moves in the height direction of the rack is less than a difference between the first length and the second length;

travel switch has the contact site, the contact site has the contact, two the contact sets up relatively, spacing face can correspond with two the contact, two the contact is in interval distance in the support body direction of height is the third length, the rack is followed the maximum distance that the support body direction of height removed equals the third length with the difference of second length.

6. The battery fire fighting device of claim 2 or 3, wherein the supporting frame further comprises two supporting portions spaced apart from each other along a second direction, the first direction and the height direction of the frame body are both perpendicular to the second direction, the extending direction of the supporting portions is the same as the height direction of the frame body, and the stopping portion is connected between the two supporting portions;

the limiting part is in sliding fit with the supporting part in the height direction of the frame body.

7. The battery fire fighting device of claim 6, wherein the stopper portion has a guide groove that penetrates through the stopper portion in the height direction of the frame body, a notch of the guide groove facing the support portion so that the guide groove is slidably fitted with the support portion in the height direction of the frame body, wherein a gap is provided between a groove wall of the guide groove and the support portion; or the like, or, alternatively,

the limiting portion is provided with a pulley, the axial direction of the pulley is perpendicular to the height direction of the support body, a sliding groove is formed in the supporting portion, the extending direction of the sliding groove is consistent with the height direction of the support body, and the pulley is in sliding fit with the sliding groove in the height direction of the support body.

8. The battery fire fighting device of any one of claims 1 to 3, wherein the cooling assembly has a reservoir chamber for storing the cooling fluid; the top of the liquid storage cavity is provided with a buffer guide part, and the placing frame and the buffer guide part are in sliding fit in the height direction of the frame body so that the placing frame enters or leaves the liquid storage cavity along the height direction of the frame body;

wherein, a gap is arranged between the placing frame and the buffering guide part, and the hardness of the buffering guide part is less than that of the placing frame.

9. The battery fire fighting device according to any one of claims 1 to 3, wherein the driving assembly includes an electric hoist, the frame body has a first hanging portion, the rack has a second hanging portion, and the first hanging portion and the second hanging portion are spaced apart in a height direction of the frame body;

the first portion of establishing of hanging with the second is hung establish the portion all be located with the direction of height vertically plane of support body, the first end of electric hoist is hung and is located first portion of establishing of hanging, the second end of electric hoist is hung and is located the second is hung and is established the portion.

10. A battery fire fighting system comprising the battery fire fighting device of any one of claims 1 to 9.