Immersed fire-fighting high-safety battery pack

Abstract

The invention provides an immersed fire-fighting high-safety battery pack which comprises a shell, the shell comprises a bottom plate, side plates, a first end plate and a second end plate, the side plates are fixedly mounted on two sides of the top of the bottom plate respectively, and the first end plate and the second end plate are fixedly mounted at two ends of the top of the shell respectively; and the anti-explosion pressure relief valve is fixedly mounted in the second end plate. According to the immersed fire-fighting high-safety battery pack provided by the invention, through mutual cooperation of the shell, the barrier plate, the overflow groove, the overflow plate, the anti-explosion pressure release valve and other structures, the overflow plate and the barrier plate can play a role in blocking a fire-fighting medium, and only when the liquid level of the fire-fighting medium rises to be higher than the overflow plate, the fire-fighting medium can be stopped; and the fire-fighting medium is discharged through the explosion-proof pressure release valve, so that the fire-fighting medium can be tightly wrapped on the outer side surface of the battery cell, the fire-fighting effect is obviously enhanced, and further deterioration of the thermal runaway phenomenon can be effectively prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of battery packs, and particularly to a highly safe battery pack for submersible fire protection. Background Art

[0002] With the increasing demand for the use of batteries in fields such as ships, the safety of battery packs has become a crucial issue. During the use of battery packs, thermal runaway is a common and dangerous situation. Once thermal runaway occurs, it may lead to serious consequences such as fire or even explosion.

[0003] In the fire protection design of traditional battery packs, most of them directly spray fire protection media on the above of the battery cells through fire protection pipes. However, in this way, it is impossible to ensure that the fire protection media can fully cover the battery cells, thus unable to cool and extinguish the battery cells in a timely and effective manner. This not only reduces the fire protection effect but also may cause the thermal runaway situation to deteriorate further, resulting in greater losses.

[0004] Therefore, it is necessary to provide a highly safe battery pack for submersible fire protection to solve the above technical problems. Summary of the Invention

[0005] The present invention provides a highly safe battery pack for submersible fire protection, which solves the problems of not only reducing the fire protection effect but also possibly causing the thermal runaway situation to deteriorate further, resulting in greater losses.

[0006] To solve the above technical problems, a highly safe battery pack for submersible fire protection provided by the present invention includes:

[0007] A housing, the housing includes a bottom plate, side plates, a first end plate and a second end plate. The side plates are respectively fixedly installed on both sides of the top of the bottom plate, and the first end plate and the second end plate are respectively fixedly installed at both ends of the top of the housing;

[0008] An explosion-proof pressure relief valve, the explosion-proof pressure relief valve is fixedly installed inside the second end plate;

[0009] A cooling and fire protection integrated plate, the cooling and fire protection integrated plate is arranged on the top of the housing;

[0010] A plurality of battery cells, a plurality of the battery cells are all arranged on the side surface of the housing;

[0011] A partition plate, the partition plate is fixedly installed at one end of the inner side surface of the housing close to the explosion-proof pressure relief valve. An overflow groove is formed at the top of the partition plate, an overflow plate is arranged on the inner side surface of the overflow groove, the top of the overflow plate is lower than the top of the partition plate, and the top of the overflow plate is higher than the top of the battery cells. The top of the partition plate is flush with the top of the housing.

[0012] Preferably, the integrated cooling and fire-fighting board includes a sealing board, a pipeline board, a cooling pipeline, a plurality of fire pipelines, a cooling interface and a spray port. The bottom of the sealing board is fixedly installed on the top of the housing, the pipeline board is fixedly installed on the top of the sealing board, the cooling pipeline and the plurality of fire pipelines are both arranged at the bottom of the pipeline board, the cooling joint is fixedly installed at the bottom of the sealing board, and a plurality of spray ports are opened at the bottom of the sealing board.

[0013] Preferably, a fire interface is fixedly installed inside the first end plate, an electric valve is fixedly installed at the output end of the fire interface, a pipeline is fixedly installed at the output end of the electric valve, and a plurality of three-way pipes are fixedly installed at the output end of the pipeline.

[0014] Preferably, the inside of the cooling interface is communicated with the inside of the cooling pipeline, and the plurality of three-way pipes are respectively communicated with the inside of the plurality of fire pipelines.

[0015] Preferably, explosion-proof valves are arranged on the tops of the plurality of battery cells, connection aluminum bars are also arranged on the tops of the plurality of battery cells, one end of the connection aluminum bar is connected with a connection copper bar, and the connection copper bar is fixedly installed on the side surface of the overflow plate.

[0016] Preferably, the high-safety battery pack with immersion fire protection further includes a sliding groove and a rotating groove. The sliding groove is opened at the bottom of the inner side surface of the overflow groove, the overflow plate is slidably connected to the inner side surface of the sliding groove, a rubber sleeve is wrapped around the outer side surface of the overflow plate, and the outer side surface of the rubber sleeve fits against the inner side surface of the sliding groove. A bearing is fixedly installed on the inner side surface of the rotating groove, a rotating ring is fixedly installed on the inner side surface of the bearing, a threaded rod is threadedly connected to the inner side surface of the rotating ring, and one end of the threaded rod abuts against the side surface of the rubber sleeve.

[0017] Preferably, a rotating handle is fixedly installed at one end of the rotating ring.

[0018] Preferably, sliding plates are fixedly installed at the top and bottom of the inner side surface of the rotating groove, moving grooves are opened at the top and bottom of the threaded rod, and the sliding plates are slidably connected to the inner side surfaces of the moving grooves.

[0019] Preferably, the high-safety battery pack with immersion fire protection further includes two sliding frames, the two sliding frames are respectively fixedly installed at both ends of one side of the partition board, a filter plate is slidably connected to the inner side surfaces of the two sliding frames, and a rubber pad is fixedly installed on the top of the filter plate.

[0020] Preferably, the top of the filter plate is flush with the top of the partition board.

[0021] Compared with the related art, a high-safety battery pack with immersion fire protection provided by the present invention has the following beneficial effects:

[0022] The present invention provides a highly safe battery pack for immersion fire protection. Through the cooperation of structures such as a housing, a partition board, an overflow tank, an overflow plate, and an explosion-proof pressure relief valve, the overflow plate and the partition board can block the fire protection medium. Only when the liquid level of the fire protection medium rises above the overflow plate, the fire protection medium will be discharged through the explosion-proof pressure relief valve. In this way, the fire protection medium can closely wrap around the outer side of the battery cell, which not only significantly enhances the fire protection effect but also effectively prevents the further deterioration of the thermal runaway phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG.

[0024] Figure 2 is Figure 1 a schematic structural diagram of the first embodiment of a highly safe battery pack for immersion fire protection provided by the present invention;

[0025] Figure 3 is Figure 2 a schematic structural diagram of the interior of the housing shown;

[0026] Figure 4 is Figure 1 a schematic structural diagram of the integrated cooling and fire protection plate shown;

[0027] Figure 5 is Figure 3 an enlarged schematic diagram of part A shown;

[0028] Figure 6 is Figure 4 an enlarged schematic diagram of part B shown;

[0029] Figure 7 is Figure 6 a schematic structural diagram of the bottom of the sealing plate shown;

[0030] Figure 8 FIG.

[0031] Figure 9 is Figure 8 an enlarged schematic diagram of part C shown;

[0032] Figure 10 FIG.

[0033] Reference numerals in the figure: 1, housing; 11, bottom plate; 12, side plate; 13, first end plate; 14, second end plate; 2, explosion-proof pressure relief valve; 3, integrated cooling and fire-fighting plate; 31, sealing plate; 32, pipeline plate; 33, cooling pipeline; 34, fire-fighting pipeline; 35, cooling interface; 36, spray port; 4, fire-fighting interface; 41, electric valve; 42, pipeline; 43, tee; 5, battery cell; 51, explosion-proof valve; 52, connecting aluminum bar; 53, connecting copper bar; 6, partition board; 61, overflow groove; 62, overflow plate; 7, sliding groove; 71, rubber sleeve; 8, rotating groove; 81, bearing; 82, rotating ring; 83, rotating handle; 84, threaded rod; 85, moving groove; 86, sliding plate; 9, sliding frame; 91, filter plate; 92, rubber pad. Detailed implementation manners

[0034] The present invention will be further described below in conjunction with the accompanying drawings and implementation manners.

[0035] First embodiment

[0036] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , where Figure 1 is a schematic structural diagram of the first embodiment of a highly safe battery pack for immersion fire protection provided by the present invention; Figure 2 is Figure 1 a schematic structural diagram of another perspective shown in Figure 3 is Figure 2 a schematic diagram of the internal structure of the housing shown in

[0037] Figure 4 is Figure 1 a schematic structural diagram of the integrated cooling and fire-fighting plate shown in Figure 5 is Figure 3 a schematic enlarged view of part A shown in Figure 6 is Figure 4 a schematic enlarged view of part B shown in Figure 7 is Figure 6 a schematic diagram of the bottom structure of the sealing plate shown in. A highly safe battery pack for immersion fire protection includes: a housing 1, the housing 1 includes a bottom plate 11, side plates 12, a first end plate 13 and a second end plate 14, the side plates 12 are respectively fixedly installed on both sides of the top of the bottom plate 11, and the first end plate 13 and the second end plate 14 are respectively fixedly installed at both ends of the top of the housing 1;

[0038] An explosion-proof pressure relief valve 2, the explosion-proof pressure relief valve 2 is fixedly installed inside the second end plate 14;

[0039] The integrated cooling and fire-fighting panel 3 is disposed on the top of the housing 1;

[0040] A plurality of battery cells 5 are all disposed on the side surface of the housing 1;

[0041] A partition plate 6 is fixedly installed at one end of the inner side surface of the housing 1 close to the explosion-proof pressure relief valve 2. An overflow groove 61 is formed at the top of the partition plate 6. An overflow plate 62 is disposed on the inner side surface of the overflow groove 61. The top of the overflow plate 62 is lower than the top of the partition plate 6 and higher than the top of the battery cells 5. The top of the partition plate 6 is flush with the top of the housing 1.

[0042] The housing 1 is a box structure composed of two side plates 12, a bottom plate 11, a first end plate 13 and a second end plate 14, and has an IP67 protection level. When in use, it is used for installing the battery cells 5;

[0043] A battery management system is disposed inside the housing 1. The battery management system is electrically connected to a temperature sensor, a voltage sensor and a smoke alarm. When the battery pack enters a thermal runaway state, the battery management system can control the opening of the electric valve 41 inside the housing 1 according to the information sensed by the temperature sensor, the voltage sensor and the smoke alarm, so that the fire-fighting medium fills the entire battery pack housing 1 and submerges all the battery cells 5;

[0044] The battery management system includes a data processing module, a control module and a communication module. The data processing module is used for receiving and processing the data transmitted by the temperature sensor, the voltage sensor and the smoke alarm. The control module controls the opening of the electric valve according to the processing result of the data processing module. The communication module is used for communicating with external devices.

[0045] The integrated cooling and fire-fighting panel 3 includes a sealing plate 31, a pipeline plate 32, a cooling pipeline 33, a plurality of fire-fighting pipelines 34, a cooling interface 35 and a spray nozzle 36. The bottom of the sealing plate 31 is fixedly installed on the top of the housing 1. The pipeline plate 32 is fixedly installed on the top of the sealing plate 31. The cooling pipeline 33 and the plurality of fire-fighting pipelines 34 are both disposed at the bottom of the pipeline plate 32. The cooling joint 35 is fixedly installed at the bottom of the sealing plate 31. A plurality of spray nozzles 36 are formed at the bottom of the sealing plate 31.

[0046] A fire-fighting interface 4 is fixedly installed inside the first end plate 13. The output end of the fire-fighting interface 4 is fixedly installed with an electric valve 41. The output end of the electric valve 41 is fixedly installed with a pipeline 42. The output end of the pipeline 42 is fixedly installed with a plurality of three-way pipes 43.

[0047] The interior of the cooling interface 35 communicates with the interior of the cooling pipeline 33, and the interiors of the multiple three-way pipes 43 respectively communicate with the interiors of the multiple fire pipelines 34.

[0048] Through the setting of the cooling interface 35, the coolant can be conveyed to the interior of the cooling pipeline 33 to play a role in cooling the battery cells 5. Through the setting of the fire interface 4, the fire-fighting medium can be conveyed to the interiors of the multiple fire pipelines 34, and then ejected through the spray nozzles 36, so that the fire-fighting medium accumulates on the outer side surface of the battery cells 5.

[0049] Explosion-proof valves 51 are provided at the tops of the multiple battery cells 5, and connection aluminum bars 52 are also provided at the tops of the multiple battery cells 5. One end of the connection aluminum bar 52 is connected to a connection copper bar 53, and the connection copper bar 53 is fixedly installed on the side surface of the overflow plate 62.

[0050] Through the provided connection aluminum bars 52 and connection copper bars 53, the multiple battery cells 5 can be connected to each other. Both the overflow plate 62 and the partition plate 6 are made of insulating materials, so that the connection copper bar 53 can be installed on the overflow plate 62.

[0051] After the installation is completed, the distance between the top of the overflow plate 62 and the bottom of the cooling and fire-fighting integrated plate 3 can be used for discharging high-temperature and high-pressure gases during use.

[0052] The working principle of a highly safe battery pack for immersion fire protection provided by the present invention is as follows:

[0053] When the battery pack enters thermal runaway, the battery management system will activate the fire protection according to the information sensed by the temperature, voltage, and smoke alarm. The process of activating the fire protection is to open the electric valve 41 inside the battery pack, so that the fire-fighting medium enters the inner side surface of the fire pipeline 34 through the pipeline 42 and the three-way pipe 43, and then is ejected through the spray nozzle 36, so that the fire-fighting medium covers the surface of the battery cells 5. At this time, since the partition plate 6 is installed on the inner side surface of the housing 1 near one end of the explosion-proof pressure relief valve 2, the fire-fighting medium can accumulate on the inner side surface of the housing 1 until the height of the accumulated fire-fighting medium exceeds the top of the overflow plate 62. At this time, the excess fire-fighting medium will enter the side of the partition plate 6 away from the battery cells 5 through the overflow plate 62, and then be discharged through the explosion-proof pressure relief valve 2. In this way, the fire-fighting medium can wrap the outer side surface of the battery cells 5, and the gas generated by high temperature can also enter the explosion-proof pressure relief valve 2 through the top of the overflow plate 62 for discharge.

[0054] Compared with the related technology, a highly safe battery pack for immersion fire protection provided by the present invention has the following beneficial effects:

[0055] Through the cooperation of structures such as the housing 1, the partition plate 6, the overflow tank 61, the overflow plate 62, and the explosion-proof pressure relief valve 2, the overflow plate 62 and the partition plate 6 can block the fire extinguishing medium. Only when the liquid level of the fire extinguishing medium rises above the overflow plate 62 will the fire extinguishing medium be discharged through the explosion-proof pressure relief valve 2. In this way, the fire extinguishing medium can tightly wrap around the outer side of the battery cell 5, which not only significantly enhances the fire extinguishing effect but also effectively prevents the further deterioration of the thermal runaway phenomenon.

[0056] Second Embodiment

[0057] Please refer to Figure 8 and Figure 9 Based on a highly safe battery pack for immersion fire extinguishing provided in the first embodiment of the present application, the second embodiment of the present application proposes another highly safe battery pack for immersion fire extinguishing. The second embodiment is merely a preferred manner of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0058] Specifically, the difference of a highly safe battery pack for immersion fire extinguishing provided in the second embodiment of the present application is that a highly safe battery pack for immersion fire extinguishing further includes a sliding groove 7 and a rotating groove 8. The sliding groove 7 is opened at the bottom of the inner side surface of the overflow tank 61, the overflow plate 62 is slidably connected to the inner side surface of the sliding groove 7, a rubber sleeve 71 is wrapped around the outer side surface of the overflow plate 62, and the outer side surface of the rubber sleeve 71 fits against the inner side surface of the sliding groove 7. A bearing 81 is fixedly installed on the inner side surface of the rotating groove 8, a rotating ring 82 is fixedly installed on the inner side surface of the bearing 81, a threaded rod 84 is threadedly connected to the inner side surface of the rotating ring 82, and one end of the threaded rod 84 abuts against the side surface of the rubber sleeve 71.

[0059] A rotating handle 83 is fixedly installed at one end of the rotating ring 82.

[0060] Sliding plates 86 are fixedly installed at the top and bottom of the inner side surface of the rotating groove 8. Moving grooves 85 are opened at the top and bottom of the threaded rod 84, and the sliding plates 86 are slidably connected to the inner side surfaces of the moving grooves 85.

[0061] Through the setting of the rotating handle 83, when in use, it is convenient for the user to rotate the rotating ring 82;

[0062] When the threaded rod 84 moves, the sliding plates 86 can slide on the inner side surfaces of the moving grooves 85, so as to play a role in limiting the threaded rod 84 and prevent the threaded rod 84 from rotating.

[0063] The working principle of a highly safe battery pack for immersion fire extinguishing provided by the present invention is as follows:

[0064] After installing the partition board 6, the user can move the overflow board 62 up and down, so that the bottom of the overflow board 62 slides on the inner side of the chute 7 until the top of the overflow board 62 is moved to the top of the battery cell 5. In this way, the fire-fighting medium can completely wrap the outer side of the battery cell 5. Then, rotate the handle 83, so that the handle 83 drives the rotating ring 82 to be threadedly connected to the outer side of the threaded rod 84, so that one end of the threaded rod 84 moves towards one side of the overflow board 62, so that one end of the threaded rod 84 abuts against the side of the rubber sleeve 71, so as to play a role in limiting the overflow board 62.

[0065] Compared with the related art, a high-safety battery pack for immersion fire protection provided by the present invention has the following beneficial effects:

[0066] By sliding the overflow board 62 up and down on the inner side of the chute 7, the blocking height of the overflow board 62 can be adjusted according to the height of the battery cell 5, so that the partition board 6 can be used for battery cells 5 of different heights, increasing the adaptability of the partition board 6.

[0067] Third Embodiment

[0068] Please refer to Figure 10 , based on a high-safety battery pack for immersion fire protection provided in the first embodiment of the present application, the third embodiment of the present application proposes another high-safety battery pack for immersion fire protection. The third embodiment is only a preferred way of the first embodiment, and the implementation of the third embodiment will not affect the independent implementation of the first embodiment.

[0069] Specifically, the difference of a high-safety battery pack for immersion fire protection provided in the third embodiment of the present application is that a high-safety battery pack for immersion fire protection further includes two sliding frames 9, and the two sliding frames 9 are respectively fixedly installed at both ends of one side of the partition board 6. A filter plate 91 is slidably connected to the inner side of the two sliding frames 9, and a rubber pad 92 is fixedly installed on the top of the filter plate 91.

[0070] The top of the filter plate 91 is flush with the top of the partition board 6.

[0071] Through the arrangement of the rubber pad 92, after installing the cooling and fire protection integrated board 3, the stability of the installation of the filter plate 91 can be increased, and impurities can also be prevented from flowing out from the top of the filter plate 91;

[0072] Through the arrangement of the sliding frame 9, it is convenient for the user to disassemble and maintain the filter plate 91 during subsequent use.

[0073] The working principle of a high-safety battery pack for immersion fire protection provided by the present invention is as follows:

[0074] During installation, the filter plate 91 is inserted into the inner side of the sliding frame 9 for installation. Then, the integrated cooling and fire-fighting plate 3 is covered on the top of the housing 1, so that the top of the rubber pad 92 abuts against the bottom of the integrated cooling and fire-fighting plate 3.

[0075] Compared with the related art, a highly safe battery pack for immersion fire-fighting provided by the present invention has the following beneficial effects:

[0076] Through the cooperation of structures such as the sliding frame 9, the filter plate 91 and the rubber pad 92, during use, when the fire-fighting medium overflows, it can block the impurities shed from the surface of the battery cells, thus preventing the impurities from entering the inside of the explosion-proof pressure relief valve 2 and affecting the normal use of the explosion-proof pressure relief valve 2.

[0077] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A high-safety battery pack for immersion firefighting, characterized in that: include: A shell, the shell comprising a bottom plate, a side plate, a first end plate and a second end plate, the side plates are respectively fixedly mounted on both sides of the top of the bottom plate, and the first end plate and the second end plate are respectively fixedly mounted on both ends of the top of the shell; An explosion-proof pressure relief valve, the explosion-proof pressure relief valve is fixedly installed inside the second end plate; A cooling and fire fighting integrated plate, wherein the cooling and fire fighting integrated plate is arranged on the top of the shell; A plurality of battery cells, wherein the plurality of battery cells are arranged on the side surface of the shell; A baffle plate is fixedly mounted on the inner side surface of the shell near one end of the explosion-proof pressure relief valve, an overflow groove is provided on the top of the baffle plate, an overflow plate is provided on the inner side surface of the overflow groove, the top of the overflow plate is lower than the top of the baffle plate, and the top of the overflow plate is higher than the top of the battery cell, and the top of the baffle plate is flush with the top of the shell.

2. A high-safety battery pack for immersion firefighting according to claim 1, characterized in that: The cooling and fire protection integrated panel includes a sealing plate, a pipeline plate, a cooling pipeline, multiple fire protection pipelines, a cooling interface and a spray port. The bottom of the sealing plate is fixedly installed on the top of the shell, the pipeline plate is fixedly installed on the top of the sealing plate, the cooling pipeline and multiple fire protection pipelines are all arranged at the bottom of the pipeline plate, the cooling joint is fixedly installed on the bottom of the sealing plate, and multiple spray ports are opened at the bottom of the sealing plate.

3. A high-safety battery pack for immersion firefighting according to claim 2, characterized in that: A fire interface is fixedly installed inside the first end plate, an electric valve is fixedly installed at the output end of the fire interface, a pipeline is fixedly installed at the output end of the electric valve, and a plurality of three-way pipes are fixedly installed at the output end of the pipeline.

4. A high-safety battery pack for immersion firefighting according to claim 3, characterized in that: The interior of the cooling interface is connected to the interior of the cooling pipeline, and the plurality of tee pipes are connected to the interiors of the plurality of fire-fighting pipes respectively.

5. The high-safety battery pack for immersion firefighting according to claim 1, characterized in that: An explosion-proof valve is provided on the top of each of the battery cells. A connecting aluminum bar is also provided on the top of each of the battery cells. One end of the connecting aluminum bar is connected to a connecting copper bar, and the connecting copper bar is fixedly installed on the side of the overflow plate.

6. A high-safety battery pack for immersion firefighting according to claim 1, characterized in that: It also includes a slide groove and a rotating groove, the slide groove is opened at the bottom of the inner side of the overflow groove, the overflow plate is slidably connected to the inner side of the slide groove, the outer side of the overflow plate is wrapped with a rubber sleeve, the outer side of the rubber sleeve fits the inner side of the slide groove, the inner side of the rotating groove is fixedly installed with a bearing, the inner side of the bearing is fixedly installed with a rotating ring, the inner side of the rotating ring is threadedly connected with a threaded rod, and one end of the threaded rod abuts against the side of the rubber sleeve.

7. A high-safety battery pack for immersion firefighting according to claim 6, characterized in that: A rotating handle is fixedly mounted on one end of the rotating circle.

8. A high-safety battery pack for immersion firefighting according to claim 7, characterized in that: The top and bottom of the inner side of the rotating groove are fixedly mounted with slide plates, the top and bottom of the threaded rod are provided with moving grooves, and the slide plates are slidably connected to the inner side of the moving groove.

9. A high-safety battery pack for immersion firefighting according to claim 1, characterized in that: It also includes two sliding frames, which are respectively fixedly installed at two ends of one side of the blocking plate, the inner sides of the two sliding frames are slidably connected with filter plates, and the top of the filter plate is fixedly installed with a rubber pad.

10. A high-safety battery pack for immersion firefighting according to claim 9, characterized in that: The top of the filter plate is flush with the top of the baffle plate.

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