Safety battery pack integrated with fire-fighting and cooling pipelines

Abstract

The invention provides a safety type battery pack integrated with fire-fighting and cooling pipelines, which comprises a shell, a plurality of battery cells are arranged in the shell, and anti-explosion valves are arranged at the tops of the plurality of battery cells; the fire fighting and cooling integrated plate is arranged at the top of the shell and comprises a pipeline plate, a bottom plate, a cooling pipeline, a fire fighting pipeline and a through hole, and the bottom plate is fixedly installed at the bottom of the pipeline plate. According to the safety battery pack integrated with the fire-fighting and cooling pipelines, the shell, the fire-fighting and cooling integrated plate and other structures are matched with one another, so that the cooling and fire-fighting functions of the battery pack are integrated on one water cooling plate, the integration of the functions is realized, and the occupied space is reduced; and the number of the battery cells placed in the standard container is increased, so that the energy density of the battery pack is improved, and the use efficiency and the cruising ability of the battery are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of container batteries, and in particular to a safety battery pack with integrated fire protection and cooling pipes. Background Art

[0002] A container battery pack is a device used to store and provide electrical energy. It can store a large amount of electrical energy and can meet the power needs of a variety of high-power equipment or equipment that runs for a long time. It is an effective solution for large-scale energy storage and supply.

[0003] However, container battery systems have extremely high safety requirements. On the one hand, the battery system is at risk of fire and explosion caused by overcharging, overheating or short circuit, so good fire and explosion resistance are required. On the other hand, the environment in which container batteries are located is harsh, requiring the battery system to use corrosion-resistant materials to ensure long-term use. At the same time, the severe vibration and impact during use also put forward seismic and impact resistance requirements for the structural design of the battery system.

[0004] At present, the existing battery packs are mostly independent of each other in terms of cooling and fire protection functions. This design takes up a large space, resulting in a limited number of battery cells placed in a standard container and low energy density.

[0005] Therefore, it is necessary to provide a safe battery pack with integrated fire protection and cooling pipes to solve the above technical problems. Summary of the invention

[0006] The present invention provides a safe battery pack with integrated fire protection and cooling pipes, which solves the problem that the cooling and fire protection functions of the battery pack are independent of each other, occupying a large space, resulting in a limited number of battery cells placed in a standard container and low energy density.

[0007] In order to solve the above technical problems, the present invention provides a safety battery pack with integrated fire protection and cooling pipes, comprising:

[0008] A shell, wherein a plurality of battery cells are arranged inside the shell, and explosion-proof valves are arranged on the tops of the plurality of battery cells;

[0009] A fire-fighting cooling integrated plate, the fire-fighting cooling integrated plate is arranged on the top of the shell, the fire-fighting cooling integrated plate comprises a pipeline plate, a bottom plate, a cooling pipe, a fire-fighting pipe and a through hole, the bottom plate is fixedly mounted on the bottom of the pipeline plate, the cooling pipe and the fire-fighting pipe are both arranged at the bottom of the pipeline plate, and the through hole is opened at the bottom of the bottom plate;

[0010] A fire-fighting joint, the fire-fighting joint is fixedly installed inside the side of the shell, an electric valve is fixedly installed on the output end of the fire-fighting joint, a fire-fighting pipe is fixedly installed on the output end of the electric valve, a plurality of three-way pipes are fixedly installed on the output end of the fire-fighting pipe, a connecting pipe is fixedly installed on the output end of the plurality of three-way pipes, and the interior of the connecting pipe is connected with the interior of the fire-fighting pipe;

[0011] A cooling water joint is fixedly installed at the bottom of the base plate, and the interior of the cooling water joint is connected with the interior of the cooling pipe.

[0012] Preferably, a sealing gasket is provided at the edge of the bottom of the bottom plate, and the bottom of the sealing gasket abuts against the top of the shell.

[0013] Preferably, mounting screws are provided inside the fire-fighting cooling integrated plate and the edge of the sealing gasket, and the bottom of the mounting screws is threadedly connected to the top of the shell.

[0014] Preferably, a plurality of the through holes are provided, and the plurality of the through holes are respectively provided on the tops of the plurality of the battery cells.

[0015] Preferably, the safety battery pack with integrated fire protection and cooling pipes further includes a threaded ring, which is threadedly connected to the inner side of the through hole, a solenoid valve is fixedly installed on the top of the threaded ring, a nozzle is fixedly installed on the bottom of the threaded ring, a baffle is fixedly installed on the outer side of the nozzle, a mounting frame is sleeved on the outer side of the threaded ring, and a temperature sensor is fixedly installed on the bottom of the mounting frame.

[0016] Preferably, a sealing ring is also sleeved on the outer side of the threaded ring.

[0017] Preferably, the bottom of the sealing ring is arranged on the top of the mounting frame, and the top of the sealing ring abuts against the bottom of the base plate.

[0018] Preferably, the temperature sensor and the solenoid valve are electrically connected.

[0019] Preferably, the safety battery pack with integrated fire protection and cooling pipes further includes a protective plate, which is mounted on the top of the fire protection and cooling integrated plate by screws.

[0020] Preferably, a buffer pad is fixedly mounted on the bottom of the protective plate, and the bottom of the buffer pad abuts against the top of the fire-fighting cooling integrated plate.

[0021] Compared with the related art, the safety battery pack with integrated fire protection and cooling pipes provided by the present invention has the following beneficial effects:

[0022] The present invention provides a safe battery pack with integrated fire protection and cooling pipes, which integrates the cooling and fire protection functions of the battery pack on a water-cooled plate through the cooperation of structures such as a shell and a fire protection cooling integrated plate, thereby realizing functional integration, reducing occupied space, and increasing the number of battery cells placed in a standard container, thereby increasing the energy density of the battery pack and improving the battery utilization efficiency and endurance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a first embodiment of a safety battery pack with integrated fire protection and cooling pipes provided by the present invention;

[0024] Figure 2 for Figure 1 The schematic diagram of the internal structure of the shell shown;

[0025] Figure 3 for Figure 1 The schematic diagram of the fire protection cooling integrated plate structure shown;

[0026] Figure 4 for Figure 1 An enlarged schematic diagram of part A is shown;

[0027] Figure 5 for Figure 4 The schematic diagram of the bottom structure of the pipeline plate shown;

[0028] Figure 6 for Figure 3 An enlarged schematic diagram of part B is shown;

[0029] Figure 7 for Figure 6 An enlarged schematic diagram of part C is shown;

[0030] Figure 8 A schematic structural diagram of a second embodiment of a safety battery pack with integrated fire protection and cooling pipes provided by the present invention;

[0031] Fig. 9 for Figure 8 The schematic diagram of the side structure of the nozzle shown;

[0032] Fig.10 A schematic structural diagram of a third embodiment of a safety battery pack with integrated fire protection and cooling pipes provided by the present invention.

[0033] Numbers in the figure: 1. Shell, 11. Battery cell, 12. Explosion-proof valve, 2. Fire-fighting cooling integrated plate, 21. Pipe plate, 22. Bottom plate, 23. Cooling pipe, 24. Fire-fighting pipe, 25. Through hole, 3. Sealing gasket, 4. Fire-fighting joint, 41. Electric valve, 42. Fire-fighting pipe, 43. Three-way pipe, 44. Connecting pipe, 5. Mounting screw, 6. Cooling water joint, 7. Threaded ring, 71. Solenoid valve, 72. Baffle, 73. Nozzle, 74. Sealing ring, 8. Mounting frame, 81. Temperature sensor, 9. Protective plate, 91. Buffer pad. DETAILED DESCRIPTION

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

[0035] First embodiment

[0036] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 ,in, Figure 1 A schematic structural diagram of a first embodiment of a safety battery pack with integrated fire protection and cooling pipes provided by the present invention; Figure 2 for Figure 1 The schematic diagram of the internal structure of the shell shown; Figure 3 for Figure 1 The schematic diagram of the fire protection cooling integrated plate structure shown; Figure 4 for Figure 1 An enlarged schematic diagram of part A is shown; Figure 5 for Figure 4 The schematic diagram of the bottom structure of the pipeline plate shown; Figure 6 for Figure 3 An enlarged schematic diagram of part B is shown; Figure 7 for Figure 6 An enlarged schematic diagram of part C is shown. A safety battery pack with integrated fire protection and cooling pipes comprises: a housing 1, a plurality of battery cells 11 are arranged inside the housing 1, and explosion-proof valves 12 are arranged on the tops of the plurality of battery cells 11;

[0037] The fire-fighting cooling integrated plate 2 is arranged on the top of the shell 1, and the fire-fighting cooling integrated plate 2 includes a pipeline plate 21, a bottom plate 22, a cooling pipe 23, a fire-fighting pipe 24 and a through hole 25. The bottom plate 22 is fixedly installed on the bottom of the pipeline plate 21, the cooling pipe 23 and the fire-fighting pipe 24 are both arranged at the bottom of the pipeline plate 21, and the through hole 25 is opened at the bottom of the bottom plate 22;

[0038] A fire-fighting connector 4, the fire-fighting connector 4 is fixedly installed inside the side of the housing 1, an electric valve 41 is fixedly installed on the output end of the fire-fighting connector 4, a fire-fighting pipe 42 is fixedly installed on the output end of the electric valve 41, a plurality of three-way pipes 43 are fixedly installed on the output end of the fire-fighting pipe 42, and a connecting pipe 44 is fixedly installed on the output end of the plurality of three-way pipes 43, and the interior of the connecting pipe 44 is connected to the interior of the fire-fighting pipe 42;

[0039] The cooling water joint 6 is fixedly installed at the bottom of the base plate 22 , and the interior of the cooling water joint 6 and the interior of the cooling pipe 23 are connected.

[0040] The cooling pipe 23 is used to cool the battery cells in the battery pack to ensure that the battery cells work within a suitable temperature range and improve the performance and life of the battery; the fire protection pipe 24 is connected to the fire protection entrance in the front of the battery pack inside the battery pack. The fire protection pipe of the fire protection cooling integrated plate 2 can be designed as multiple pipes according to the arrangement of the battery cells. After the fire protection medium enters through the fire protection joint 4, it is controlled by the switch of the fire protection electric valve 41 and enters the internal fire protection pipe 24;

[0041] When processing, the cooling pipe 23 and the fire fighting pipe 24 can be formed on the pipeline plate 21 at one time by a stamping process, and then the bottom plate 22 is welded to the bottom of the pipeline plate 21 to separate the cooling pipe 23 and the fire fighting pipe 24.

[0042] A sealing gasket 3 is disposed at the edge of the bottom of the bottom plate 22 , and the bottom of the sealing gasket 3 abuts against the top of the housing 1 .

[0043] By providing the sealing gasket 3 , after the fire protection cooling integrated plate 2 is installed, the sealing performance of the housing 1 can be increased.

[0044] The fire-fighting cooling integrated plate 2 and the sealing gasket 3 are both provided with mounting screws 5 inside their edges, and the bottoms of the mounting screws 5 are threadedly connected to the top of the housing 1 .

[0045] A plurality of through holes 25 are provided, and the plurality of through holes 25 are respectively provided at the tops of the plurality of battery cells 11 .

[0046] There may be a plurality of through holes 25 above each battery cell, and the through holes 25 may serve as fire outlets. Fire sprinklers may also be welded at the positions of the through holes 25 to control the water outlet direction and the size of water drops.

[0047] The working principle of a safety battery pack with integrated fire protection and cooling pipes provided by the present invention is as follows:

[0048] When in use, when the thermal runaway detection devices such as the temperature sensor, voltage sensor, and smoke sensor inside the housing 1 detect that the battery cell is in thermal runaway, the electric valve 41 is opened, so that the firefighting medium enters the interior of the firefighting pipe 24 through the firefighting pipe 42, the three-way pipe 43, and the connecting pipe 44, and then is ejected through the through hole 25, thereby playing the role of cooling the battery cell 11 and extinguishing the fire;

[0049] When the battery cell needs to be cooled, the coolant enters the interior of the cooling pipe 23 through the cooling water connector 6 , thereby achieving the effect of cooling the battery cell 11 .

[0050] Compared with the related art, the safety battery pack with integrated fire protection and cooling pipes provided by the present invention has the following beneficial effects:

[0051] By cooperating with each other through structures such as the shell 1 and the fire-fighting cooling integrated plate 2, the cooling and fire-fighting functions of the battery pack are integrated on a water-cooled plate, thereby realizing functional integration, reducing occupied space, and increasing the number of battery cells placed in a standard container, thereby increasing the energy density of the battery pack and improving the battery's utilization efficiency and endurance.

[0052] Second embodiment

[0053] Please refer to Figure 8 , Fig. 9 Based on the safety battery pack with integrated fire protection and cooling pipes provided in the first embodiment of the present application, the second embodiment of the present application proposes another safety battery pack with integrated fire protection and cooling pipes. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0054] Specifically, the difference of the safety battery pack with integrated fire protection and cooling pipes provided in the second embodiment of the present application is that the safety battery pack with integrated fire protection and cooling pipes also includes a threaded ring 7, which is threadedly connected to the inner side of the through hole 25, and a solenoid valve 71 is fixedly installed on the top of the threaded ring 7, a nozzle 73 is fixedly installed on the bottom of the threaded ring 7, a baffle 72 is fixedly installed on the outer side of the nozzle 73, and a mounting frame 8 is sleeved on the outer side of the threaded ring 7, and a temperature sensor 81 is fixedly installed on the bottom of the mounting frame 8.

[0055] A sealing ring 74 is also sleeved on the outer side of the threaded ring 7 .

[0056] The bottom of the sealing ring 74 is disposed on the top of the mounting bracket 8 , and the top of the sealing ring 74 abuts against the bottom of the bottom plate 22 .

[0057] The temperature sensor 81 and the solenoid valve 71 are electrically connected.

[0058] It is threadedly connected to the inner side of the through hole 25 through the thread ring 7. In this way, when in use, it is convenient for the user to install the nozzle 73.

[0059] Through the setting of the mounting bracket 8, the temperature sensor 81 can be installed, so that the temperature sensor 81 is as close as possible to the battery cell 11, thereby increasing the effect of temperature detection.

[0060] By the sealing ring 74 abutted against the bottom of the bottom plate 22, the sealing effect can be increased in this way, and the fire-fighting medium is prevented from flowing out from the inner side of the through hole 25.

[0061] When the solenoid valve 71 is in use, it is connected to the temperature sensor 81. When the temperature reaches the preset temperature, the solenoid valve 71 can be automatically opened, so that the fire-fighting medium enters the inner side of the nozzle 73 and then is ejected.

[0062] The working principle of a safety-type battery pack integrating a fire-fighting and cooling pipeline provided by the present invention is as follows:

[0063] When in use, when the temperature sensor 81 detects that the temperature of the battery cell 11 is too high, the electric valve 41 will be controlled to open at this time, so that the fire-fighting medium enters the interior of the fire-fighting pipeline 24. Then, the solenoid valve 71 at the top of the battery cell 11 will be opened, so that the fire-fighting medium inside the fire-fighting pipeline 24 is ejected through the nozzle 73 and then sprayed on the top of the battery cell 11, thereby playing a role in extinguishing the fire and cooling the battery cell 11.

[0064] Compared with the related art, a safety-type battery pack integrating a fire-fighting and cooling pipeline provided by the present invention has the following beneficial effects:

[0065] Through the cooperation of structures such as the thread ring 7, the solenoid valve 71, the nozzle 73, the mounting bracket 8 and the temperature sensor 81, when in use, the temperature sensor 81 can detect the battery cell 11 with too high temperature, and accordingly the solenoid valve 71 is opened, so that the fire-fighting medium is accurately sprayed on the battery cell 11 through the nozzle 73, thereby increasing the effect of extinguishing the fire and cooling the battery cell 11.

[0066] Third Embodiment

[0067] Please refer to Fig.10, based on a safety battery pack integrating a fire-fighting and cooling pipeline provided by the first embodiment of the present application, another safety battery pack integrating a fire-fighting and cooling pipeline is proposed in the third embodiment of the present application. The third embodiment is only a preferred manner of the first embodiment, and the implementation of the third embodiment will not affect the independent implementation of the first embodiment.

[0068] Specifically, the difference of a safety battery pack integrating a fire-fighting and cooling pipeline provided by the third embodiment of the present application is that a safety battery pack integrating a fire-fighting and cooling pipeline further includes a protection plate 9, and the protection plate 9 is installed on the top of the fire-fighting and cooling integrated plate 2 by screws.

[0069] A buffer pad 91 is fixedly installed at the bottom of the protection plate 9, and the bottom of the buffer pad 91 abuts against the top of the fire-fighting and cooling integrated plate 2.

[0070] The working principle of a safety battery pack integrating a fire-fighting and cooling pipeline provided by the present invention is as follows:

[0071] When in use, the user installs the protection plate 9 on the top of the fire-fighting and cooling integrated plate 2 by screws, so that the bottom of the buffer pad 91 abuts against the top of the fire-fighting and cooling integrated plate 2.

[0072] Compared with the related technology, a safety battery pack integrating a fire-fighting and cooling pipeline provided by the present invention has the following beneficial effects:

[0073] By installing the protection plate 9 and the buffer pad 91 on the top of the fire-fighting and cooling integrated plate 2, when in use, it can play a role in protecting the fire-fighting and cooling integrated plate 2 and avoid damage to the fire-fighting and cooling integrated plate 2 when being impacted.

[0074] 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 specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A safety battery pack with integrated fire protection and cooling pipes, characterized in that: include: A shell, wherein a plurality of battery cells are arranged inside the shell, and explosion-proof valves are arranged on the tops of the plurality of battery cells; A fire-fighting cooling integrated plate, the fire-fighting cooling integrated plate is arranged on the top of the shell, the fire-fighting cooling integrated plate comprises a pipeline plate, a bottom plate, a cooling pipe, a fire-fighting pipe and a through hole, the bottom plate is fixedly mounted on the bottom of the pipeline plate, the cooling pipe and the fire-fighting pipe are both arranged at the bottom of the pipeline plate, and the through hole is opened at the bottom of the bottom plate; A fire-fighting joint, the fire-fighting joint is fixedly installed inside the side of the shell, an electric valve is fixedly installed on the output end of the fire-fighting joint, a fire-fighting pipe is fixedly installed on the output end of the electric valve, a plurality of three-way pipes are fixedly installed on the output end of the fire-fighting pipe, a connecting pipe is fixedly installed on the output end of the plurality of three-way pipes, and the interior of the connecting pipe is connected with the interior of the fire-fighting pipe; A cooling water joint is fixedly installed at the bottom of the base plate, and the interior of the cooling water joint is connected with the interior of the cooling pipe.

2. A safety battery pack with integrated fire protection and cooling pipes according to claim 1, characterized in that: A sealing gasket is arranged at the edge of the bottom of the bottom plate, and the bottom of the sealing gasket abuts against the top of the shell.

3. A safety battery pack with integrated fire protection and cooling pipes according to claim 1, characterized in that: The fire-fighting cooling integrated plate and the inner part of the edge of the sealing gasket are both provided with mounting screws, and the bottom of the mounting screws is threadedly connected to the top of the shell.

4. A safety battery pack with integrated fire protection and cooling pipes according to claim 1, characterized in that: A plurality of through holes are provided, and the plurality of through holes are respectively provided on the tops of the plurality of battery cells.

5. A safety battery pack with integrated fire protection and cooling pipes according to claim 1, characterized in that: It also includes a threaded ring, which is threadedly connected to the inner side of the through hole, a solenoid valve is fixedly installed on the top of the threaded ring, a nozzle is fixedly installed on the bottom of the threaded ring, a baffle is fixedly installed on the outer side of the nozzle, a mounting frame is sleeved on the outer side of the threaded ring, and a temperature sensor is fixedly installed on the bottom of the mounting frame.

6. A safety battery pack with integrated fire protection and cooling pipes according to claim 5, characterized in that: A sealing ring is also sleeved on the outer side of the threaded ring.

7. A safety battery pack with integrated fire protection and cooling pipes according to claim 6, characterized in that: The bottom of the sealing ring is arranged on the top of the mounting frame, and the top of the sealing ring abuts against the bottom of the bottom plate.

8. A safety battery pack with integrated fire protection and cooling pipes according to claim 7, characterized in that: The temperature sensor is electrically connected to the solenoid valve.

9. A safety battery pack with integrated fire protection and cooling pipes according to claim 1, characterized in that: It also includes a protective plate, which is installed on the top of the fire protection cooling integrated plate by screws.

10. A safety battery pack with integrated fire protection and cooling pipes according to claim 9, characterized in that: A buffer pad is fixedly mounted on the bottom of the protective plate, and the bottom of the buffer pad abuts against the top of the fire-fighting cooling integrated plate.

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