CN217526159U - Fire extinguishing system and battery with same - Google Patents

Abstract

The utility model provides a fire extinguishing system and have its battery. Fire extinguishing systems sets up in the box of battery, and fire extinguishing systems includes: the pipeline assembly comprises a main pipeline and a plurality of branch pipelines communicated with the main pipeline, and the plurality of branch pipelines are arranged in one-to-one correspondence with the plurality of battery modules of the battery; the storage structure is used for storing the fire extinguishing agent and is communicated with each branch pipeline through the main pipeline; each branch pipeline comprises a first pipeline section and a second pipeline section, the main pipeline is communicated with the second pipeline section through the first pipeline section, the second pipeline section is rotatably connected with the first pipeline section, and a fire extinguishing agent spraying part communicated with the second pipeline section is arranged on the second pipeline section. The utility model discloses the problem of battery package after getting on fire among the prior art sustained combustion has been solved effectively.

Description

Fire extinguishing system and battery with same

Technical Field

The utility model relates to a battery technology field particularly, relates to a fire extinguishing systems and have its battery.

Background

At present, with new energy automobile more and more popularized, the battery package problem of catching a fire also frequently, at the initial stage of catching a fire of battery package, owing to lack effectual means of putting out a fire, cause the battery package to last the burning, not only have the condemned risk of whole car, also can cause the threat to driver, passenger's life safety, influence vehicle safety in utilization.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a fire extinguishing systems and have its battery to the battery package burns the problem of after getting on fire among the solution prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a fire extinguishing system provided in a case of a battery, the fire extinguishing system including: the pipeline assembly comprises a main pipeline and a plurality of branch pipelines communicated with the main pipeline, and the plurality of branch pipelines are arranged in one-to-one correspondence with the plurality of battery modules of the battery; the storage structure is used for storing the fire extinguishing agent and is communicated with each branch pipeline through the main pipeline; each branch pipeline comprises a first pipeline section and a second pipeline section, the main pipeline is communicated with the second pipeline section through the first pipeline section, the second pipeline section is rotatably connected with the first pipeline section, and a fire extinguishing agent spraying part communicated with the second pipeline section is arranged on the second pipeline section.

Further, the fire suppression system further comprises: and the driving device is arranged on the first pipe section and is in driving connection with the second pipe section so as to drive the second pipe section to rotate relative to the first pipe section.

Further, the second pipe section has a through hole, and the fire extinguishing agent spraying portion includes: the spraying body is provided with a transition cavity and an outlet, the through hole is communicated with the outlet through the transition cavity, and the outlet is positioned on the side wall of the spraying body; wherein, the number of the outlets is one; alternatively, the outlet is provided in plurality, and the plurality of outlets are arranged at intervals along the circumferential direction and/or the axial direction of the injection body.

Further, the injection body includes: the first end of the cylinder body is connected with the second pipe section; the cover plate is arranged opposite to the second end of the cylinder; the second end of the cylinder body is connected with the cover plate through the connecting plate, so that the side edge of the connecting plate, at least part of the end surface of the second end and at least part of the plate surface of the cover plate surround to form an outlet; wherein, the number of the connecting plates is one; or the connecting plates are arranged at intervals along the circumferential direction of the cylinder.

Further, the fire extinguishing agent spraying portion further includes: the carousel rotationally sets up on the apron and is located the transition intracavity, and the pivot of carousel is for the center pin off-centre setting of via hole to through the impact force promotion carousel rotation of the fire extinguishing agent of follow via hole discharge.

Further, the turntable includes: the rotary disc body is rotatably connected with the cover plate; a plurality of strip-shaped parts, all set up on the carousel body and set up along the circumference interval of carousel body, each strip-shaped part is along the radial extension of carousel body.

Further, the fire suppression system further comprises: the adjusting structure is arranged at the communication position of the first pipe section and the second pipe section and is used for adjusting the flow or the flow speed of the fire extinguishing agent entering the second pipe section; and/or the adjusting structure is arranged at the communication part of the main pipeline and the branch pipeline and is used for adjusting the flow or the flow speed of the fire extinguishing agent entering the branch pipeline.

Further, the adjusting structure is rotatably arranged at the through hole to shield or avoid the through hole, so that the flow or the flow speed of the fire extinguishing agent entering the second pipe section is adjusted.

Furthermore, the number of the adjusting structures is multiple, and the adjusting structures and the branch pipelines are arranged in a one-to-one correspondence manner; the fire suppression system further comprises: the detection devices are arranged in one-to-one correspondence with the adjustment structures and are used for detecting the voltage value of each battery module, and when the detection value of the detection device is smaller than the preset voltage value, the adjustment structures are controlled to rotate to avoid at least part of through holes; or each detection device is used for detecting the smoke value of each battery module, and when the detection value of each detection device is larger than the preset smoke value, the adjustment structure is controlled to rotate to avoid at least part of through holes.

According to another aspect of the utility model, a battery is provided, which comprises a box body, a battery module and a fire extinguishing system, wherein the battery module and the fire extinguishing system are both arranged in the box body; wherein, the fire extinguishing system is the above fire extinguishing system.

Use the technical scheme of the utility model, set up fire extinguishing system in the box of battery, fire extinguishing system includes the pipeline subassembly and stores the structure, stores the total pipeline and each branch pipeline intercommunication that the structure passes through the pipeline subassembly, and a plurality of branch pipelines set up with a plurality of battery module one-to-ones of battery to make the fire extinguishing agent can follow the blowout of fire extinguishing agent injection portion and put out a fire the operation to corresponding battery module. Like this, if the battery package is on fire, be located the fire extinguishing agent of storage structure on spraying the battery module on fire through main pipeline, first pipeline section, second pipeline section and fire extinguishing agent injection portion in proper order to put out a fire the operation, and then solved among the prior art battery package and fired back sustained combustion's problem. Simultaneously, the second pipeline section rotationally is connected with first pipeline section to drive fire extinguishing agent injection portion through the second pipeline section and rotate, and then enlarged the spray regime of fire extinguishing agent injection portion, realize putting out a fire fast, promoted fire extinguishing system's fire extinguishing efficiency.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the scope of the invention. In the drawings:

figure 1 shows a schematic perspective view of an embodiment of a fire suppression system according to the present invention;

FIG. 2 shows an exploded view of the fire suppression system of FIG. 1;

FIG. 3 shows an enlarged schematic view at A of the fire suppression system of FIG. 2;

FIG. 4 shows an enlarged schematic view at B of the fire suppression system of FIG. 2;

FIG. 5 is a schematic perspective view of the fire suppression system of FIG. 1 with the piping components assembled with the storage structure and the fire suppressant spray;

FIG. 6 shows a cross-sectional view of a branch conduit of the conduit assembly of FIG. 5;

FIG. 7 is a schematic diagram of the bypass hole of the branch conduit of the conduit assembly of FIG. 5 in a fully open position;

fig. 8 shows a schematic structural view of the through hole of the branch duct of the duct assembly of fig. 5 in a partially opened state.

Wherein the figures include the following reference numerals:

10. a box body; 11. a lower box body; 20. a main pipeline; 30. a branch pipe; 31. a first tube section; 32. a second tube section; 40. a battery module; 50. a storage structure; 60. a fire extinguishing agent spraying section; 61. a spray body; 611. an outlet; 612. a barrel; 613. a cover plate; 614. a connecting plate; 62. a turntable; 621. a turntable body; 622. a strip-shaped member; 70. a drive device; 80. and adjusting the structure.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional terms such as "upper" and "lower" is generally with respect to the orientation shown in the drawings, or to the vertical, perpendicular, or gravitational orientation; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself, but the above directional terms are not intended to limit the present invention.

In order to solve the problem that the battery package burns continuously after catching fire among the prior art, this application provides a fire extinguishing systems and has its battery.

As shown in fig. 1 to 8, a fire extinguishing system including a piping assembly and a storage structure 50 is provided in a case 10 of the battery. The pipe assembly includes a main pipe 20 and a plurality of branch pipes 30 communicating with the main pipe 20, and the plurality of branch pipes 30 are provided in one-to-one correspondence with a plurality of battery modules 40 of the battery. The storage structure 50 is used to store the fire extinguishing agent, and the storage structure 50 is communicated with each branch pipe 30 through the main pipe 20. Wherein, each branch pipeline 30 comprises a first pipeline section 31 and a second pipeline section 32, the main pipeline 20 is communicated with the second pipeline section 32 through the first pipeline section 31, the second pipeline section 32 is rotatably connected with the first pipeline section 31, and the second pipeline section 32 is provided with a fire extinguishing agent spraying part 60 communicated with the second pipeline section 32.

Use the technical scheme of this embodiment, set up fire extinguishing system in the box 10 of battery, fire extinguishing system includes the pipeline subassembly and stores structure 50, stores structure 50 and communicates through pipeline subassembly's total pipeline 20 and each branch pipeline 30, and a plurality of battery module 40 one-to-one of a plurality of branch pipelines 30 and battery sets up to make fire extinguishing agent can follow the blowout of fire extinguishing agent injection part 60 and put out a fire the operation to corresponding battery module 40. Like this, if the battery package is on fire, the fire extinguishing agent that is located storage structure 50 sprays on the battery module 40 on fire through main pipeline 20, first pipeline section 31, second pipeline section 32 and fire extinguishing agent injection portion 60 in proper order to put out a fire the operation, and then the problem of the battery package after on fire sustained combustion among the prior art has been solved. Simultaneously, second pipe section 32 rotationally is connected with first pipe section 31 to drive fire extinguishing agent injection portion 60 through second pipe section 32 and rotate, and then enlarged the spray regime of fire extinguishing agent injection portion 60, realize putting out a fire fast, promoted fire extinguishing system's fire extinguishing efficiency.

Optionally, the main conduit 20 is made of a metal material.

Optionally, the branch pipe 30 is made of metal.

Optionally, the first tube section 31 and the second tube section 32 are spaced apart in the thickness direction (height direction) of the battery to ensure that the second tube section 32 does not interfere with the movement of the first tube section 31 during rotation.

In this embodiment, the second pipe section 32 is located above the first pipe section 31.

In the present embodiment, there are four battery modules 40, four branch pipes 30, and four branch pipes 30 are disposed corresponding to four battery modules 40.

It should be noted that the number of the branch pipes 30 is not limited to this, and can be adjusted according to the working condition and the use requirement. Optionally, the branch lines 30 are two, or three, or five, or six, or more.

Alternatively, the fire extinguishing agent spraying portion 60 is plural, and the plural fire extinguishing agent spraying portions 60 are provided in one-to-one correspondence with the plural second pipe sections 32.

As shown in fig. 3, the fire suppression system further includes a drive device 70. Wherein the driving device 70 is arranged on the first pipe section 31, the driving device 70 is in driving connection with the second pipe section 32 to drive the second pipe section 32 to rotate relative to the first pipe section 31. Therefore, the driving device 70 drives the second pipe section 32 to rotate relative to the first pipe section 31, the intelligentization degree of the fire extinguishing system is improved, and the labor intensity of workers is reduced.

Alternatively, the driving device 70 is a brushless motor. Like this, because brushless motor has characteristics such as low interference, noise are low, the operation is smooth and easy, long service life and no spark, further prevent that the battery is inside to catch fire, promoted the safety in utilization of battery.

As shown in fig. 4, the second pipe section 32 has a through hole, and the fire extinguishing agent spraying part 60 includes a spraying body 61. Wherein the injection body 61 has a transition cavity and an outlet 611, the via hole is communicated with the outlet 611 through the transition cavity, and the outlet 611 is located on the side wall of the injection body 61. Like this, above-mentioned setting makes fire extinguishing agent spout from the lateral part of fire extinguishing agent injection portion 60, and then has enlarged the spray regime of fire extinguishing agent injection portion 60, realizes putting out a fire fast, has promoted fire extinguishing system's fire extinguishing efficiency.

Specifically, if the battery pack fires, the fire extinguishing agent in the storage structure 50 is sprayed out from the outlet 611 after sequentially passing through the via holes and the transition cavity of the main pipeline 20, the first pipe section 31 and the second pipe section 32, and is sprayed onto the battery module 40 which fires, so that the flow fluency of the fire extinguishing agent in the fire extinguishing system is improved, and the operation reliability of the fire extinguishing system is improved.

Optionally, the outlet 611 is one; alternatively, the outlet 611 is plural, and the plural outlets 611 are provided at intervals in the circumferential direction and/or the axial direction of the injection body 61. Like this, above-mentioned setting makes the number of export 611 select, the mode of arranging is more nimble to satisfy different user demand and operating mode, also promoted staff's processing flexibility.

In this embodiment, the number of outlets 611 of each fire extinguishing agent spraying portion 60 is two, the two outlets 611 are provided at intervals in the circumferential direction of the spraying body 61, and the fire extinguishing agent can be sprayed through the two outlets 611 to extinguish a fire, thereby widening the spraying range of the fire extinguishing agent.

It should be noted that the number of the outlets 611 is not limited to this, and may be adjusted according to the working condition and the use requirement. Alternatively, the outlets 611 of each fire extinguishing agent spraying part 60 are three, or four, or five, or six, or more.

As shown in fig. 4, the injection body 61 includes a cylinder 612, a cap 613, and a connection plate 614. Wherein the first end of the cylinder 612 is connected to the second tube segment 32. A cover plate 613 is disposed opposite the second end of the barrel 612. The second end of the cylinder 612 is connected to the cover 613 by a connecting plate 614 so that the side edge of the connecting plate 614, at least part of the end surface of the second end and at least part of the plate surface of the cover 613 surround the outlet 611. Thus, the above arrangement ensures that the fire extinguishing agent introduced into the fire extinguishing agent spraying portion 60 is all sprayed from the outlet 611 to avoid the fire extinguishing agent from being wasted and even affecting the fire extinguishing efficiency of the fire extinguishing system. Meanwhile, the arrangement makes the structure of the spraying body 61 simpler, easy to process and realize, and reduces the processing cost and the processing difficulty of the fire extinguishing agent spraying part 60.

Specifically, there is a predetermined space between the second end of the cylinder 612 and the cover plate 613, and at least a portion of the predetermined space forms the outlet 611. The connecting plate 614 is an arc-shaped plate, the arc-shaped plate and the cylinder 612 are coaxially arranged, and the outer peripheral surface of the arc-shaped plate and the outer peripheral surface of the cylinder 612 are arranged in parallel and level mode, so that the appearance of the injection body 61 is more attractive.

Optionally, one connecting plate 614; alternatively, the connection plate 614 is provided in plurality, and the plurality of connection plates 614 are arranged at intervals along the circumference of the cylinder 612. Like this, above-mentioned setting makes the number of connecting plate 614 select more in a flexible way to satisfy different user demand and operating mode, also promoted staff's processing flexibility.

In the embodiment, there are two connecting plates 614, two connecting plates 614 are arranged at intervals along the circumference of the cylinder 612, and the outlet 611 is formed between two adjacent connecting plates 614.

It should be noted that the number of the connection plates 614 is not limited to this, and may be adjusted according to the working condition and the use requirement. Optionally, the connecting plates 614 are three, or four, or five, or six, or more.

As shown in fig. 4, the fire extinguishing agent spraying part 60 further includes a turntable 62. Wherein, the turntable 62 is rotatably disposed on the cover plate 613 and located in the transition chamber, and the rotating shaft of the turntable 62 is eccentrically disposed with respect to the central axis of the through hole to push the turntable 62 to rotate by the impact force of the fire extinguishing agent discharged from the through hole. Like this, the fire extinguishing agent that passes the via hole is eccentric to be spouted on carousel 62, and the injection force promotes carousel 62 and rotates, and the fire extinguishing agent is splashed immediately and is taken to all around to make the fire extinguishing agent's the scope of putting out a fire bigger, and then ensure that the fire extinguishing agent who spouts from fire extinguishing agent injection portion 60 can cover the battery module 40 that corresponds with this fire extinguishing agent injection portion 60.

As shown in fig. 4, the turntable 62 includes a turntable body 621 and a plurality of bars 622. The turntable body 621 is rotatably connected to the cover plate 613. A plurality of bars 622 are all disposed on the turntable body 621 and are disposed at intervals along the circumferential direction of the turntable body 621, and each bar 622 extends along the radial direction of the turntable body 621. Specifically, the gap between two adjacent bars 622 gradually increases in the direction from the center of the turntable body 621 to the edge thereof, so that the fire extinguishing agent enters the gap and moves in the radial direction of the turntable 62 until being ejected from the outlet 611.

In the present embodiment, the width of each strip 622 is consistent along the radial direction of the turntable 62, so that the structure of the strip 622 is simpler and is easy to process and implement.

Optionally, the fire suppression system further comprises an adjustment structure 80, the adjustment structure 80 being arranged at the communication of the first pipe section 31 and the second pipe section 32 for adjusting the flow or velocity of the fire suppressant entering the second pipe section 32; and/or, an adjustment structure 80 is provided at the communication of the main conduit 20 with the branch conduits 30 for adjusting the flow or velocity of the fire suppressant entering the branch conduits 30. Thus, the flow or velocity of the fire suppressant entering the second pipe segment 32 is adjusted by the adjustment structure 80; and/or, through the flow or the velocity of flow of the fire extinguishing agent of adjustment entering branch pipeline 30 of adjustment structure 80, and then adjust the fire extinguishing agent flow or the velocity of flow that each fire extinguishing agent injection portion 60 erupted, spray more fire extinguishing agents on the battery module 40 on fire promptly, realize the rational distribution of fire extinguishing agent, not only avoid the fire extinguishing agent extravagant, also realize putting out a fire fast, promoted fire extinguishing system's fire extinguishing efficiency.

In the present embodiment, an adjustment structure 80 is provided at the communication of the first pipe section 31 and the second pipe section 32 for adjusting the flow or velocity of the fire suppressant entering the second pipe section 32.

As shown in fig. 7 and 8, an adjustment structure 80 is rotatably disposed at the through hole to block or avoid the through hole, thereby adjusting the flow rate of the fire suppressant entering the second pipe section 32. Specifically, the volume of sheltering from that shelters from the via hole through adjustment structure 80 can be adjusted the flow or the velocity of flow of fire extinguishing agent in the via hole to make adjustment structure 80 easier, simple and convenient to the adjustment of fire extinguishing agent flow or velocity of flow, reduced the adjustment degree of difficulty.

Specifically, adjustment structure 80 includes a plurality of rotating vane and pivot, and a plurality of rotating vane wear to establish in the pivot and can follow the pivot and rotate, shelter from or dodge the via hole through the rotating vane to the rotating vane quantity of sheltering from the via hole through the adjustment is adjusted the flow or the velocity of flow of fire extinguishing agent.

Optionally, a plurality of rotating blades are in driving connection with the driving device 70, so that each rotating blade is driven to rotate around the rotating shaft by the driving device 70, that is, the driving device 70 drives the rotating blades to rotate while driving the second pipe section 32 to rotate, and the opening and closing of the through hole and the adjustment of the flow or flow rate of the fire extinguishing agent are realized along with the rotation of the second pipe section 32, so that the number of driving devices in the fire extinguishing system is reduced, and the control difficulty of the fire extinguishing system is reduced.

Optionally, the adjustment mechanism 80 further includes a drive mechanism drivingly coupled to the plurality of rotary blades for driving the rotary blades about the rotary shaft.

Optionally, there are a plurality of adjusting structures 80, and a plurality of adjusting structures 80 are disposed in one-to-one correspondence with the plurality of branch pipes 30. The fire extinguishing system further comprises a plurality of detection devices, the detection devices are arranged in one-to-one correspondence with the adjustment structures 80, each detection device is used for detecting the voltage value of each battery module 40, and when the detection value of the detection device is smaller than the preset voltage value, the adjustment structures 80 are controlled to rotate to avoid at least part of through holes; or, each detection device is used for detecting the smoke value of each battery module 40, and when the detection value of the detection device is greater than the preset smoke value, the control adjustment structure 80 is rotated to avoid at least part of the through holes. Like this, control according to detection device's detected value and adjust structure 80 and rotate, and then adjust the flow or the velocity of flow of fire extinguishing agent to make fire extinguishing agent rational distribution in fire extinguishing systems, promote fire extinguishing systems's fire extinguishing efficiency.

In the present embodiment, each detection device is configured to detect a voltage value of each battery module 40, and when a detection value of the detection device is smaller than a preset voltage value, the adjustment structure 80 is controlled to rotate to avoid at least a portion of the through holes. Like this, if detection device detects that the magnitude of voltage of certain battery module 40 reduces and be less than and predetermine the magnitude of voltage, then judge this battery module 40 and catch fire, need put out a fire to it, control the adjustment structure 80 corresponding with this detection device this moment and rotate to make adjustment structure 80 dodge the hole, ensure that the fire extinguishing agent can spout through via hole, fire extinguishing agent injection part 60.

Specifically, during the initial state, all adjustment structures 80 all rotate to shelter from all via holes, and fire extinguishing system can not spray the fire extinguishing agent this moment. In the battery operation process, if the detection device detects that the voltage value of a certain battery module 40 is reduced and is smaller than the preset voltage value, the battery module 40 is judged to be on fire, at the moment, the adjusting structure 80 corresponding to the detection device is controlled to rotate, so that the adjusting structure 80 avoids at least part of through holes, and the fire extinguishing agent can be sprayed out through the through holes and the fire extinguishing agent spraying part 60. Wherein, the flow or velocity of the fire suppressant passing through the via hole can be adjusted by adjusting the area of the adjustment structure 80 that avoids the via hole.

As shown in fig. 1 and 2, the present application further provides a battery, which includes a box 10, a battery module 40 and a fire extinguishing system, wherein the battery module 40 and the fire extinguishing system are both disposed in the box 10. Wherein, the fire extinguishing system is the above fire extinguishing system.

As shown in fig. 1 and 2, the housing 10 includes an upper housing and a lower housing 11, and the fire extinguishing system is provided on the lower housing 11. Specifically, the pipeline assembly is welded on the lower box body 11, so that the connection strength of the pipeline assembly and the lower box body is improved.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

set up fire extinguishing system in the box of battery, fire extinguishing system includes the pipeline subassembly and stores the structure, stores the total pipeline and each branch pipeline intercommunication that the structure passes through the pipeline subassembly, and a plurality of battery module one-to-one ground of a plurality of branch pipelines and battery set up to make the fire extinguishing agent can follow the blowout of fire extinguishing agent injection portion and put out a fire the operation to corresponding battery module. Like this, if the battery package is on fire, be located the fire extinguishing agent of storage structure on spraying the battery module on fire through main pipeline, first pipeline section, second pipeline section and fire extinguishing agent injection portion in proper order to put out a fire the operation, and then solved among the prior art battery package and fired back sustained combustion's problem. Simultaneously, the second pipeline section is rotationally connected with first pipeline section to drive fire extinguishing agent injection portion through the second pipeline section and rotate, and then enlarged the spray range of fire extinguishing agent injection portion, realize putting out a fire fast, promoted fire extinguishing system's fire extinguishing efficiency.

It is to be understood that the above-described embodiments are only some of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A fire extinguishing system provided in a case (10) of a battery, characterized in that it comprises:

the pipeline assembly comprises a main pipeline (20) and a plurality of branch pipelines (30) communicated with the main pipeline (20), wherein the plurality of branch pipelines (30) are arranged in one-to-one correspondence with a plurality of battery modules (40) of the battery;

-a storage structure (50) for storing a fire extinguishing agent, said storage structure (50) communicating with each of said branch lines (30) through said main line (20);

wherein each branch pipeline (30) comprises a first pipeline section (31) and a second pipeline section (32), the main pipeline (20) is communicated with the second pipeline section (32) through the first pipeline section (31), the second pipeline section (32) is rotatably connected with the first pipeline section (31), and a fire extinguishing agent spraying part (60) communicated with the second pipeline section (32) is arranged on the second pipeline section (32).

2. The fire suppression system of claim 1, further comprising:

the driving device (70) is arranged on the first pipe section (31), and the driving device (70) is in driving connection with the second pipe section (32) so as to drive the second pipe section (32) to rotate relative to the first pipe section (31).

3. The fire extinguishing system according to claim 1, wherein the second pipe section (32) has a through hole, and the fire extinguishing agent spraying portion (60) includes:

an injection body (61) having a transition cavity through which the via communicates with the outlet (611) and an outlet (611), the outlet (611) being located on a side wall of the injection body (61); wherein the outlet (611) is one; alternatively, the outlet (611) is provided in a plurality, and the outlets (611) are arranged at intervals in the circumferential direction and/or the axial direction of the injection body (61).

4. A fire extinguishing system according to claim 3, characterized in that the spraying body (61) comprises:

a barrel (612), a first end of the barrel (612) being connected to the second tube segment (32);

a cover plate (613) disposed opposite the second end of the barrel (612);

a connecting plate (614), wherein the second end of the cylinder (612) is connected with the cover plate (613) through the connecting plate (614), so that the side edge of the connecting plate (614), at least part of the end surface of the second end and at least part of the plate surface of the cover plate (613) surround to form the outlet (611); wherein the connecting plate (614) is one; or, the connecting plates (614) are multiple, and the connecting plates (614) are arranged at intervals along the circumferential direction of the cylinder (612).

5. The fire extinguishing system according to claim 4, wherein the fire extinguishing agent spraying portion (60) further comprises:

and the rotating disc (62) is rotatably arranged on the cover plate (613) and is positioned in the transition cavity, and the rotating shaft of the rotating disc (62) is eccentrically arranged relative to the central shaft of the through hole so as to push the rotating disc (62) to rotate through the impact force of the fire extinguishing agent discharged from the through hole.

6. The fire suppression system of claim 5, wherein the turntable (62) comprises:

a turntable body (621) rotatably connected to the cover plate (613);

the plurality of strip-shaped pieces (622) are arranged on the rotary disc body (621) and are arranged at intervals along the circumferential direction of the rotary disc body (621), and each strip-shaped piece (622) extends along the radial direction of the rotary disc body (621).

7. The fire suppression system of claim 3, further comprising:

an adjustment structure (80), said adjustment structure (80) being arranged at the communication of said first pipe section (31) and said second pipe section (32) for adjusting the flow or velocity of the extinguishing agent entering into said second pipe section (32); and/or the adjusting structure (80) is arranged at the communication part of the main pipeline (20) and the branch pipeline (30) for adjusting the flow or the flow speed of the fire extinguishing agent entering the branch pipeline (30).

8. A fire extinguishing system according to claim 7, wherein the adjustment structure (80) is rotatably arranged at the through hole to block or avoid the through hole and thereby adjust the flow or velocity of the fire extinguishing agent entering the second pipe section (32).

9. The fire extinguishing system according to claim 8, wherein the adjusting structure (80) is plural, and plural adjusting structures (80) are provided in one-to-one correspondence with plural branch pipes (30); the fire suppression system further comprises:

the detection devices are arranged in one-to-one correspondence with the adjustment structures (80), each detection device is used for detecting the voltage value of each battery module (40), and when the detection value of the detection device is smaller than a preset voltage value, the adjustment structures (80) are controlled to rotate to avoid at least part of the through holes; or each detection device is used for detecting the smoke value of each battery module (40), and when the detection value of the detection device is larger than the preset smoke value, the adjustment structure (80) is controlled to rotate to avoid at least part of the through holes.

10. A battery is characterized by comprising a box body (10), a battery module (40) and a fire extinguishing system, wherein the battery module (40) and the fire extinguishing system are both arranged in the box body (10); wherein the fire suppression system is as claimed in any one of claims 1 to 9.

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