Anti-impact battery pack protection structure

Abstract

The utility model relates to the technical field of battery pack protection, and discloses an anti-impact battery pack protection structure, which comprises a protection shell, a barrier mechanism and a buffer mechanism, the blocking mechanism comprises two storage boxes and a plurality of blocking boxes, the two storage boxes are arranged at the two ends of the containing cavity correspondingly, and the blocking boxes are arranged in the containing cavity and located between the two storage boxes; the two storage boxes communicate with the adjacent blocking boxes through the flow guide pipes correspondingly, and the multiple blocking boxes communicate with one another through the flow guide pipes. According to the anti-impact battery pack protection structure, through the arrangement of the blocking box, a plurality of storage batteries can be separated in the protection shell, and then heat emitted by the storage batteries is absorbed and transferred by virtue of circulating circulation of internal cooling liquid, so that the situation that the storage batteries directly influence one another is reduced, and the service life of the storage batteries is prolonged. In addition, the storage battery can be cooled, and the condition of detonation caused by too high temperature is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack protection, and in particular to an impact-proof battery pack protection structure. Background Art

[0002] A battery pack is an integrated battery module composed of multiple battery cells, usually used to store and provide electrical energy. They are widely used in various devices and systems, such as electric vehicles, mobile phones, laptops, drones, etc. The design of the battery pack can be customized according to needs, including battery type, capacity, size and connection method, etc. They usually contain some protection circuits to prevent overcharging, over-discharging, overcurrent, etc. to ensure the safety and stability of the battery.

[0003] An automotive battery pack refers to a shell or bracket used to store automotive batteries. Automotive batteries are important components of a vehicle, providing starting power and power supply for the vehicle. When an automotive battery pack is impacted, it is prone to deformation, which in turn squeezes the internal batteries, making it prone to structural damage, short circuits, and electrolyte leakage, which can lead to increased temperatures and explosions, causing harm to the driver.

[0004] The existing automotive battery pack is a simple combination of battery groups into a battery pack, which is fastened and installed in the power box of the electric vehicle through a mounting rod. When the car collides, the battery pack in the power box will be hit by other structural parts in the power box. When the battery pack is damaged or squeezed by the collision, the storage battery inside the battery pack will be deformed, short-circuited and leaked due to the impact and squeezing, and the battery pack will heat up and explode. The explosion of the battery pack will cause a chain reaction, affecting the adjacent battery packs in the battery pack, thereby aggravating the damage to the electric vehicle and posing a safety hazard. Therefore, the safety of existing battery packs is not high. Utility Model Content

[0005] The utility model provides an impact-proof battery pack protection structure, which can separate the battery pack into areas, thereby reducing the explosion and the mutual influence between batteries, and can also cool the battery pack to reduce the explosion caused by over-temperature.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] An impact-proof battery pack protection structure is designed, including a protective shell, a barrier mechanism and a buffer mechanism, wherein:

[0008] The protective shell is provided with a receiving cavity;

[0009] The blocking mechanism includes two storage boxes and a plurality of blocking boxes, the two storage boxes are respectively arranged at the two ends of the accommodating cavity, and the plurality of blocking boxes are arranged in the accommodating cavity and located between the two storage boxes;

[0010] The two storage boxes are connected to the adjacent barrier boxes through the guide pipe, and the multiple barrier boxes are connected to each other through the guide pipe. The two storage boxes are connected through the return pipe, so that the liquid in one storage box enters the other storage box.

[0011] The buffer mechanism is fixedly mounted on the outer surface of the protective shell to initially absorb the impact force.

[0012] Optionally, a plurality of mounting grooves are provided in the middle of the inner bottom wall of the protective shell, and batteries are fixedly mounted on the inner walls of the plurality of mounting grooves.

[0013] Optionally, slots are respectively provided between the plurality of installation slots, the inner wall of each slot is plugged into the outer surface of the barrier box, and card slots are respectively provided on both sides of the inner bottom wall of the protective shell, and the inner walls of the two card slots are respectively plugged into the outer surfaces of the two storage boxes.

[0014] Optionally, a water pump is fixedly mounted on the inner wall of one of the storage boxes, and the output end of the water pump is sleeved with the end of the return pipe.

[0015] Optionally, a liquid inlet hole is formed at the top of each of the two storage boxes, and a sealing plug is threadedly connected to the inner wall of the liquid inlet hole.

[0016] Optionally, the buffer mechanism includes two adjustment seats and a plurality of buffer springs, the two adjustment seats are slidably connected to two sides of the outer surface of the protective shell, and the plurality of buffer springs are fixedly mounted on the inner side walls of the two adjustment seats.

[0017] Optionally, the inner bottom walls of the two adjustment seats are fixedly connected with guide blocks, the bottom of the protective shell is provided with a guide groove adapted to the guide block, the inner side wall of the guide groove is slidably connected to the outer surface of the guide block, and the outer surfaces of the two adjustment seats are fixedly connected with buffer pads.

[0018] Optionally, a sealing cover is detachably connected to the top of the protective shell, a sealing ring is detachably connected between the sealing cover and the protective shell, a plurality of fixing bolts are threadedly passed through the four sides of the top of the sealing cover, one end of the fixing bolt passes through the sealing cover and is plugged into the outer wall of the sealing ring, and one end of the fixing bolt passes through the sealing ring and is threadedly connected to the top of the protective shell.

[0019] The utility model provides an impact-proof battery pack protection structure, which has the following beneficial effects:

[0020] The impact-proof battery pack protection structure can separate multiple batteries inside the protective shell through the provision of a barrier box, and then absorb and transfer the heat generated by the batteries with the help of the circulation of internal coolant, thereby reducing the direct influence between the batteries, and can also cool the batteries to reduce explosions due to excessive temperature. Through the provision of a guide tube, multiple barrier boxes can be relatively connected, thereby achieving rapid circulation of coolant, thereby improving the cooling effect of the device. Even if it is subjected to a severe impact, the battery can be initially cooled and the fire can be extinguished with the help of the coolant flowing out after the storage box and the barrier box are damaged, thereby further improving the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the explosion structure of the sealing cover of the utility model;

[0023] Figure 3 This is a schematic diagram of the protective shell structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the installation structure of the adjustment seat of the utility model;

[0025] Figure 5 This is a schematic diagram of the explosion structure of the barrier mechanism of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the buffer mechanism of the utility model;

[0027] Figure 7 This is a schematic diagram of the installation structure of the sealing cover of the utility model.

[0028] In the figure: 1. protective shell; 2. mounting slot; 3. battery; 4. slot; 5. card slot; 6. barrier mechanism; 601. storage box; 602. barrier box; 603. guide pipe; 604. return pipe; 7. water pump; 8. liquid inlet hole; 9. sealing plug; 10. buffer mechanism; 1001. adjustment seat; 1002. buffer spring; 11. guide block; 12. guide groove; 13. buffer pad; 14. sealing cover; 15. sealing ring; 16. fixing bolt. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the utility model shall fall within the scope of protection of the utility model.

[0030] See also Figures 1 to 7 The embodiment of the utility model provides a protection structure, which is applied to the scenario of protecting the battery pack used in new energy vehicles. In this embodiment, the structure of the protection structure is improved to have the advantages of separation and cooling. Specifically, taking the anti-impact protection of the battery pack as an example, as a preferred solution in this embodiment, the protection structure is specifically an anti-impact battery pack protection structure, which can protect the battery pack from impact.

[0031] See also Figures 1 to 7 This embodiment provides an impact-proof battery pack protection structure, which is mainly used in the scenario of impact-proof protection of battery packs.

[0032] It includes a protective shell 1, a blocking mechanism 6 and a buffer mechanism 10, wherein:

[0033] The protective shell 1 is provided with a receiving cavity;

[0034] The blocking mechanism 6 includes two storage boxes 601 and a plurality of blocking boxes 602. The two storage boxes 601 are respectively arranged at the two ends of the accommodating cavity, and the plurality of blocking boxes 602 are all arranged in the accommodating cavity and located between the two storage boxes 601.

[0035] Both storage boxes 601 are connected to the adjacent barrier box 602 through the guide pipe 603, and multiple barrier boxes 602 are connected to each other through the guide pipe 603. The two storage boxes 601 are connected through the return pipe 604, so that the liquid in one storage box 601 can enter the other storage box 601.

[0036] The buffer mechanism 10 is fixedly mounted on the outer surface of the protective shell 1 to initially absorb the impact force.

[0037] In this embodiment, the required coolant can be stored by setting up two storage boxes 601, and the multiple barrier boxes 602 can form multiple mutually separated spaces inside the protective shell 1, and form a barrier to the temperature transfer, thereby reducing the mutual influence between the battery packs, and at the same time, the coolant inside the barrier box 602 absorbs heat, and the battery pack can also be cooled to reduce the influence of excessive temperature on the battery pack. The setting of the guide pipe 603 can form a connection between the two storage boxes 601 and the multiple barrier boxes 602, so as to facilitate the flow of coolant in the storage box 601 and the barrier box 602, thereby circulating and taking away excess heat of the battery pack to achieve the purpose of cooling, and the return pipe 604 can form a connection between the two storage boxes 601 to achieve the recycling of the coolant.

[0038] In the above embodiment, as a preferred solution, a plurality of mounting grooves 2 are provided in the middle of the inner bottom wall of the protective shell 1, and batteries 3 are fixedly installed on the inner walls of the plurality of mounting grooves 2. By setting the mounting grooves 2, the batteries 3 can be installed and fixed, and then the plurality of batteries 3 can be separated, thereby reducing the mutual influence between the batteries 3 and avoiding a chain reaction caused by excessive temperature or explosion.

[0039] In the above embodiment, as a preferred solution, slots 4 are respectively provided between the multiple installation slots 2, and the inner wall of each slot 4 is plugged into the outer surface of the barrier box 602. Card slots 5 are respectively provided on both sides of the inner bottom wall of the protective shell 1, and the inner walls of the two card slots 5 are respectively plugged into the outer surfaces of the two storage boxes 601. Through the setting of the slots 4, the barrier box 602 can be installed and fixed, and the interior of the protective shell 1 can be divided into multiple areas, thereby reducing the heat transfer speed, thereby isolating and protecting the undamaged batteries 3. Through the setting of the card slots 5, the storage box 601 can be installed and fixed, and the card slots 5 are provided on both sides of the protective shell 1, so that when impacted, the impact force can be first absorbed by the storage box 601, and then the impact force is absorbed again under the buffering of the buffer mechanism 10, thereby further protecting the battery 3, and after the storage box 601 is damaged, the leaked coolant can also be used to extinguish the fire and cool down the internal battery 3, thereby further improving the safety of the device.

[0040] In the above embodiment, as a preferred solution, a water pump 7 is fixedly installed on the inner wall of one of the storage boxes 601, and the output end of the water pump 7 is socketed with the end of the return pipe 604. Through the setting of the water pump 7, the coolant can be pumped out from the return pipe 604, thereby forming a large pressure in the storage box 601, and then the pressure is released to the outside with the help of the guide pipe 603, thereby providing power for the circulation of the coolant between the barrier box 602 and the storage box 601, and then the return pipe 604 flows the coolant from the other storage box 601 back to the storage box 601.

[0041] In the above embodiment, as a preferred solution, a liquid inlet hole 8 is provided at the top of each of the two storage boxes 601, and a sealing plug 9 is threadedly connected to the inner wall of the liquid inlet hole 8. Through the setting of the liquid inlet hole 8, the coolant inside the two storage boxes 601 can be replenished, and then the sealing plug 9 is used to seal the liquid inlet hole 8, thereby ensuring the pressure balance between the two storage boxes 601 and the multiple barrier boxes 602.

[0042] In the above embodiment, as a preferred solution, the buffer mechanism 10 includes two adjustment seats 1001 and a plurality of buffer springs 1002. The two adjustment seats 1001 are respectively slidably connected to the two sides of the outer surface of the protective shell 1, and the plurality of buffer springs 1002 are respectively fixedly installed on the inner walls of the two adjustment seats 1001. Through the setting of the adjustment seats 1001, they can slide on both sides of the protective shell 1. When an impact occurs, the sliding of the adjustment seats 1001 is used to offset the impact force, and the deformation of the buffer springs 1002 is used to further offset the impact force, so that the buffer mechanism 10 is used to protect both sides of the protective shell 1, thereby improving the protection capability of the device for the battery 3.

[0043] In the above embodiment, as a preferred scheme, the inner bottom walls of the two adjustment seats 1001 are fixedly connected with guide blocks 11, and the bottom of the protective shell 1 is provided with guide grooves 12 adapted to the guide blocks 11. The inner side walls of the guide grooves 12 are slidably connected to the outer surface of the guide blocks 11, and the outer surfaces of the two adjustment seats 1001 are fixedly connected with buffer pads 13. Through the setting of the guide blocks 11, they can cooperate with the guide grooves 12, and then assist and guide the sliding of the adjustment seats 1001 by means of the mutual sliding between the guide blocks 11 and the guide grooves 12, thereby ensuring that the adjustment seats 1001 offset the impact force.

[0044] In the above embodiment, as a preferred scheme, a sealing cover 14 is detachably connected to the top of the protective shell 1, and a sealing ring 15 is detachably connected between the sealing cover 14 and the protective shell 1. A plurality of fixing bolts 16 are threadedly penetrated around the top of the sealing cover 14. One end of the fixing bolt 16 penetrates through the sealing cover 14 and is plugged into the outer wall of the sealing ring 15. One end of the fixing bolt 16 penetrates through the sealing ring 15 and is threadedly connected to the top of the protective shell 1. By setting the sealing cover 14, the connection stability between the protective shell 1 and the sealing cover 14 can be ensured with the help of the setting of the fixing bolt 16, and the setting of the sealing ring 15 can further improve the sealing between the protective shell 1 and the sealing cover 14.

[0045] In the utility model, the working steps of the device are as follows:

[0046] 1. First, install the battery 3 into the installation slot 2, then install and fix the storage box 601, the barrier box 602, the guide pipe 603 and the return pipe 604, then open the sealing plug 9, inject the coolant into the storage box 601, reinstall the sealing plug 9 after the injection is completed, start the water pump 7, and let the coolant start to circulate;

[0047] 2. Secondly, the sealing cover 14 and the sealing ring 15 are connected and fixed by means of fixing bolts 16, and then the two buffer mechanisms 10 are installed on both sides of the protective shell 1, so that the guide block 11 and the guide groove 12 are slidably connected, and then the buffer spring 1002 is fixed to the outer wall of the protective shell 1;

[0048] 3. Then, when impacted, the deformation of the buffer pad 13 is used to offset the smaller impact, while the larger impact force drives the adjustment seat 1001 to slide and squeeze the buffer spring 1002, thereby offsetting the impact force;

[0049] 4. Finally, when the protective shell 1 is subjected to excessive impact, it will be deformed to a large extent, and when the storage box 601 is damaged, the coolant will leak into the protective shell 1 to cool the battery 3, extinguish the flame, and reduce the explosion.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An impact-proof battery pack protection structure, characterized in that: It comprises a protective shell (1), a blocking mechanism (6) and a buffer mechanism (10), wherein: The protective shell (1) is provided with a receiving cavity; The blocking mechanism (6) comprises two storage boxes (601) and a plurality of blocking boxes (602), the two storage boxes (601) being respectively arranged at two ends of the accommodating cavity, and the plurality of blocking boxes (602) being arranged in the accommodating cavity and between the two storage boxes (601); The two storage boxes (601) are connected to the adjacent barrier box (602) via the flow guide pipe (603), the plurality of barrier boxes (602) are connected to each other via the flow guide pipe (603), and the two storage boxes (601) are connected via the return pipe (604), so that the liquid in one storage box (601) can flow into the other storage box (601); The buffer mechanism (10) is fixedly mounted on the outer surface of the protective shell (1) to initially absorb the impact force.

2. The impact-proof battery pack protection structure according to claim 1, characterized in that: A plurality of mounting grooves (2) are provided in the middle of the inner bottom wall of the protective shell (1), and batteries (3) are fixedly mounted on the inner walls of the plurality of mounting grooves (2).

3. The impact-proof battery pack protection structure according to claim 2, characterized in that: Slots (4) are respectively provided between the plurality of installation slots (2), the inner wall of each slot (4) being plugged into the outer surface of the barrier box (602), and card slots (5) are respectively provided on both sides of the inner bottom wall of the protective shell (1), the inner walls of the two card slots (5) being respectively plugged into the outer surfaces of the two storage boxes (601).

4. The impact-proof battery pack protection structure according to claim 1, characterized in that: A water pump (7) is fixedly mounted on the inner wall of one of the storage boxes (601), and the output end of the water pump (7) is sleeved with the end of the return pipe (604).

5. The impact-proof battery pack protection structure according to claim 1, characterized in that: The tops of the two storage boxes (601) are each provided with a liquid inlet hole (8), and the inner side wall of the liquid inlet hole (8) is threadedly connected with a sealing plug (9).

6. The impact-proof battery pack protection structure according to claim 1, characterized in that: The buffer mechanism (10) comprises two adjustment seats (1001) and a plurality of buffer springs (1002); the two adjustment seats (1001) are respectively slidably connected to two sides of the outer surface of the protective shell (1); and the plurality of buffer springs (1002) are respectively fixedly mounted on the inner side walls of the two adjustment seats (1001).

7. The impact-proof battery pack protection structure according to claim 6, characterized in that: The inner bottom walls of the two adjustment seats (1001) are fixedly connected to guide blocks (11), the bottom of the protective shell (1) is provided with a guide groove (12) adapted to the guide block (11), the inner side wall of the guide groove (12) is slidably connected to the outer surface of the guide block (11), and the outer surfaces of the two adjustment seats (1001) are fixedly connected to buffer pads (13).

8. The impact-proof battery pack protection structure according to claim 1, characterized in that: The top of the protective shell (1) is detachably connected to a sealing cover (14), and a sealing ring (15) is detachably connected between the sealing cover (14) and the protective shell (1). A plurality of fixing bolts (16) are threadedly inserted around the top of the sealing cover (14), one end of the fixing bolt (16) passes through the sealing cover (14) and is plugged into the outer wall of the sealing ring (15), and one end of the fixing bolt (16) passes through the sealing ring (15) and is threadedly connected to the top of the protective shell (1).

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