New energy battery pack frame body protection structure

Abstract

The utility model provides a new energy battery package frame body protection structure relates to battery protection technical field, including protection mechanism, protection mechanism includes: rubber plug one, rubber plug one outside is provided with the sealing cover, the sealing cover bottom is provided with the shell, the protection mechanism bottom is provided with the anti -collision mechanism, the shell both sides are provided with a fixed frame respectively, the shell is away from output end one side rectangle protruding and is provided with cooling liquid storage room, the utility model discloses through the baffle and isolate each battery block as separate part and make it not influence each other, when the temperature of certain battery block is too high, reaches forty -eight degrees Celsius, the hot -melt formula valve on its both sides transport pipeline can release silicon oil and carry out the cooling to it, when certain battery block is on fire, the temperature -sensing type shower nozzle of its corresponding battery block top can spray water -based fire extinguishing agent and carry out the fire extinguishing, and the anti -collision mechanism of battery package frame bottom can avoid the damage of its generation because of the collision.

Description

Technical Field

[0001] This utility model relates to the field of battery protection technology, and in particular to a protective structure for the frame of a new energy battery pack. Background Technology

[0002] As a core structural component of the power battery system of new energy vehicles, the battery pack frame is an important part of the battery pack and plays a key role in the safe and stable operation of the battery. However, it may be damaged during use, leading to thermal runaway, which may cause fire or even explosion.

[0003] However, in existing technologies, the internal structure is simple and there are few protective structures, which cannot produce an effective protection effect. When the battery module generates high temperature, it cannot effectively and timely cool it down, which leads to the internal temperature getting higher and higher, causing fire or even explosion. Moreover, there is no isolation between multiple battery modules. When one battery module generates high temperature or catches fire, it will affect other battery modules, causing all battery modules to be scrapped. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies and provide a protective structure for the frame of a new energy battery pack.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a protective structure for a new energy battery pack frame, including a protective mechanism, the protective mechanism comprising: a rubber plug one, a sealing cover on the outer side of the rubber plug one, a shell at the bottom of the sealing cover, an anti-collision mechanism at the bottom of the protective mechanism, a fixing frame on each side of the shell, a coolant storage chamber on a rectangular protrusion on the side of the shell away from the output end, a rubber plug two at the top of the coolant storage chamber, a partition at the front end of the coolant storage chamber, and four transport pipes at the bottom of the coolant storage chamber, each transport pipe corresponding to a battery block having a thermoplastic valve.

[0006] In a preferred embodiment, the bottom of the protective mechanism is provided with an anti-collision mechanism, which includes an anti-collision shell and a grid-shaped anti-collision beam at the top of the anti-collision shell.

[0007] In a preferred embodiment, the housing has an internal cavity, and eight temperature-sensing spray heads are provided at the bottom of the housing, each of which corresponds to a battery block.

[0008] In a preferred embodiment, the top of the sealing cap is provided with a groove corresponding to the rubber plug, the bottom of the sealing cap is connected to the top of the outer shell by bolt thread, and the top of the rectangular protrusion of the outer shell is fixedly connected to the bottom of the coolant storage chamber.

[0009] In a preferred embodiment, rectangular protrusions are provided on the upper and lower sides of the transport pipeline, a corresponding slot is provided at the bottom of the coolant storage chamber, the rear end of the transport pipeline is fixedly connected to the front end of the coolant storage chamber, and the transport pipeline is fixedly connected to a thermoplastic valve.

[0010] In a preferred embodiment, the top of the outer shell is fixedly connected to the bottom of the partition, the outer side of the outer shell is fixedly connected to the inner side of the fixing frame, and the top of the coolant storage chamber is provided with a groove corresponding to the second rubber plug.

[0011] In a preferred embodiment, the top of the temperature-sensing spray head is provided with a thread, the bottom of the sealing cover is provided with a threaded groove corresponding to the temperature-sensing spray head, the top of the temperature-sensing spray head and the bottom of the sealing cover are connected by threads, the cavity is provided with a water-based fire extinguishing agent, and the coolant storage chamber is provided with silicone oil.

[0012] In a preferred embodiment, the top of the anti-collision shell is fixedly connected to the bottom of the grid anti-collision beam, and the top of the anti-collision mechanism is connected to the bottom of the protection mechanism by bolt thread.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] This invention isolates each battery block into a separate part through a partition so that they do not affect each other. When the temperature of a battery block is too high, reaching 48 degrees Celsius, the thermosetting valves on the transport pipes on both sides will release silicone oil to cool it down. When a battery block catches fire, the temperature-sensing sprinkler head at the top of the corresponding battery block will spray water-based fire extinguishing agent to extinguish the fire. The anti-collision mechanism at the bottom of the battery pack frame can prevent damage caused by collision. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a protective structure for a new energy battery pack frame provided by this utility model.

[0016] Figure 2 A schematic diagram of the protective mechanism structure of a new energy battery pack frame protection structure provided by this utility model.

[0017] Figure 3 A schematic diagram of the protective mechanism structure of a new energy battery pack frame protection structure provided by this utility model.

[0018] Figure 4 This is a partially enlarged schematic diagram of the protective mechanism of a new energy battery pack frame protection structure provided by this utility model.

[0019] Figure 5 A schematic diagram of the protective mechanism structure of a new energy battery pack frame protection structure provided by this utility model.

[0020] Figure 6 This is a partial cross-sectional schematic diagram of the protective mechanism of a new energy battery pack frame protective structure provided by this utility model.

[0021] Figure 7 A schematic diagram of the anti-collision mechanism of a new energy battery pack frame protection structure provided by this utility model.

[0022] Legend:

[0023] 1. Protective mechanism; 11. Rubber stopper one; 12. Sealing cap; 13. Coolant storage chamber; 14. Rubber stopper two; 15. Partition; 16. Transport pipeline; 17. Heat-fusion valve; 18. Outer shell; 19. Fixing frame; 121. Temperature-sensing spray head; 122. Cavity;

[0024] 2. Anti-collision mechanism; 21. Anti-collision shell; 22. Cross anti-collision beam. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] like Figure 1-6As shown, this utility model provides a technical solution: a protective structure for a new energy battery pack frame, including a protection mechanism 1. The protection mechanism 1 includes: a rubber plug 11, a sealing cover 12 on the outside of the rubber plug 11, a shell 18 at the bottom of the sealing cover 12, an anti-collision mechanism 2 at the bottom of the protection mechanism 1, a fixing bracket 19 on each side of the shell 18, a coolant storage chamber 13 on a rectangular protrusion on the side of the shell 18 away from the output end, a rubber plug 14 at the top of the coolant storage chamber 13, a partition 15 at the front end of the coolant storage chamber 13, four transport pipes 16 at the bottom of the coolant storage chamber 13, a thermoplastic valve 17 at each corresponding battery block of the transport pipes 16, a cavity 122 inside the shell 18, eight temperature-sensing spray heads 121 at the bottom of the shell 18, each temperature-sensing spray head 121 corresponding to one battery block, and a corresponding rubber plug at the top of the sealing cover 12. The groove of the first 11, the bottom end of the sealing cover 12 is connected to the top end of the outer shell 18 by bolt thread, the top end of the rectangular protrusion of the outer shell 18 is fixedly connected to the bottom end of the coolant storage chamber 13, the upper and lower sides of the transport pipe 16 are respectively provided with rectangular protrusions, the bottom end of the coolant storage chamber 13 is provided with a groove corresponding to the transport pipe 16, the rear end of the transport pipe 16 is fixedly connected to the front end of the coolant storage chamber 13, the transport pipe 16 is fixedly connected to the thermo-fusion valve 17, the top end of the outer shell 18 is fixedly connected to the bottom end of the partition 15, the outer side of the outer shell 18 is fixedly connected to the inner side of the fixing frame 19, the top end of the coolant storage chamber 13 is provided with a groove corresponding to the rubber stopper 14, the top end of the temperature-sensing spray head 121 is provided with thread, the bottom end of the sealing cover 12 is provided with a threaded groove corresponding to the temperature-sensing spray head 121, the top end of the temperature-sensing spray head 121 is connected to the bottom end of the sealing cover 12 by thread, the cavity 122 is provided with water-based fire extinguishing agent, and the coolant storage chamber 13 is provided with silicone oil.

[0028] In this embodiment, the battery blocks are isolated by a partition 15 located at the top of the outer casing 18, ensuring that any abnormality does not affect the normal operation of other battery blocks. Rectangular protrusions on the upper and lower sides of the transport pipe 16 fix the transport pipe 16 and the battery blocks, preventing free movement. When a battery block overheats, the low-melting-point alloy seals in the corresponding thermoplastic valves 17 melt, and the silicone oil in the coolant storage chamber 13 located away from the output end flows out of the coolant storage chamber 13 by gravity, flows through the transport pipe 16, and exits through the thermoplastic valves 17, thus cooling the high-temperature battery blocks. The cooling process absorbs the heat generated. It should be noted that the heat-fusion valve used in this invention is an automatic valve for fire safety that relies on the melting of a fusible plug. Therefore, it has a specific operating temperature (melting point). Given that the battery temperature is in the risk accumulation stage when it reaches 60℃-120℃, the technical parameters of the heat-fusion valve used in this invention are between 70℃ and 100℃. When the temperature of the heat-fusion valve reaches between 70℃ and 100℃, it will gradually melt, releasing the internal silicone oil to cool down the battery, thereby improving battery safety, avoiding the risk of fire, and making it easier for users to use.

[0029] When the silicone oil in the coolant storage chamber 13 is insufficient, it can be replenished by inserting or removing the rubber plug 14 at the top of the coolant storage chamber 13. When the battery pack catches fire, the temperature rises, the temperature-sensing glass bulb in the temperature-sensing spray head 121 at the bottom of the sealing cover 12 breaks, causing the plug in the slot at the top of the temperature-sensing spray head 121 to fall out, and the water-based fire extinguishing agent flows out from the cavity 122 and sprays the burning battery pack to extinguish the fire. When the water-based fire extinguishing agent in the cavity 122 is insufficient, it can be replenished by inserting or removing the rubber plug 11 at the top of the sealing cover 12. The battery pack frame can be fixed to the new energy vehicle by the fixing brackets 19 set on both sides of the outer shell 18. The above parts work together to achieve safety protection for the vehicle and the driver.

[0030] Example 2

[0031] like Figure 1-7 As shown, the bottom of the protection mechanism 1 is provided with an anti-collision mechanism 2. The anti-collision mechanism 2 includes an anti-collision shell 21. The top of the anti-collision shell 21 is provided with a grid anti-collision beam 22. The top of the anti-collision shell 21 is fixedly connected to the bottom of the grid anti-collision beam 22. The top of the anti-collision mechanism 2 is connected to the bottom of the protection mechanism 1 by bolt thread.

[0032] In this embodiment, the anti-collision shell 21 absorbs the potential energy generated by the impact to protect the battery pack frame from damage caused by the impact. The grid anti-collision beam 22 provides a certain degree of support for the anti-collision shell 21 and absorbs the potential energy that the anti-collision shell 21 does not fully absorb, thus preventing damage to the battery pack frame and achieving the protective effect.

[0033] Working principle:

[0034] like Figure 1-7 As shown, the battery blocks are isolated by the bottom partition 15, making each battery block a relatively independent part. When a battery block malfunctions, the partition 15 will prevent it from affecting other battery blocks. When the temperature of a battery block is too high, reaching 48 degrees Celsius, the low-melting-point alloy seals in the heat-fused valves 17 on both sides melt. The silicone oil in the coolant storage chamber 13 flows into the transport pipe 16 by gravity potential energy, and then flows to the outlet of the corresponding heat-fused valve 17 to cool the battery block and absorb the heat it generates. When the silicone oil in the coolant storage chamber 13 is insufficient, the silicone oil in the cavity 122 can be replenished by inserting and removing the rubber plug 11. When the battery catches fire, its internal temperature rises, and the temperature sensing nozzle 121... When the glass bulb ruptures, the plug in the slot at the top of the heat-sensing spray head 121 falls out, and the water-based fire extinguishing agent in the cavity 122 flows out. The fire extinguishing agent is then sprayed onto the burning battery pack through the heat-sensing spray head 121 to extinguish the flames. When the water-based fire extinguishing agent is insufficient, it can be replenished by inserting or removing the rubber plug 14 at the top of the sealing cover 12. The battery pack frame can be fixed by the fixing brackets 19 on both sides of the outer shell 18. The anti-collision shell 21 can absorb the potential energy generated by the impact to protect the battery pack frame from damage. The cross anti-collision beam 22 provides a certain degree of support for the anti-collision shell 21 and absorbs the potential energy that the anti-collision shell 21 does not fully absorb, thus preventing damage to the battery pack frame and achieving the protective effect.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A new energy battery pack frame body protection structure, characterized in that, The device includes a protection mechanism (1), which includes: a rubber plug (11), a sealing cap (12) on the outside of the rubber plug (11), a housing (18) at the bottom of the sealing cap (12), an anti-collision mechanism (2) at the bottom of the protection mechanism (1), a fixing bracket (19) on each side of the housing (18), a coolant storage chamber (13) on a rectangular protrusion on the side of the housing (18) away from the output end, a rubber plug (14) at the top of the coolant storage chamber (13), a partition (15) at the front end of the coolant storage chamber (13), and four transport pipes (16) at the bottom of the coolant storage chamber (13). Each transport pipe (16) is equipped with a thermoplastic valve (17) corresponding to the battery block.

2. The new energy battery pack frame protection structure according to claim 1, characterized in that: The protective mechanism (1) is provided with an anti-collision mechanism (2) at its bottom end. The anti-collision mechanism (2) includes an anti-collision shell (21) and a grid anti-collision beam (22) is provided at the top of the anti-collision shell (21).

3. The new energy battery pack frame protection structure according to claim 1, characterized in that: The outer shell (18) has a cavity (122) inside, and eight temperature-sensing spray heads (121) are provided at the bottom of the outer shell (18), each of the temperature-sensing spray heads (121) corresponding to a battery block.

4. The new energy battery pack frame protection structure according to claim 1, characterized in that: The top of the sealing cap (12) is provided with a groove corresponding to the rubber plug (11). The bottom of the sealing cap (12) is connected to the top of the outer shell (18) by bolt thread. The top of the rectangular protrusion of the outer shell (18) is fixedly connected to the bottom of the coolant storage chamber (13).

5. The protective structure for a new energy battery pack frame according to claim 1, characterized in that: The transport pipe (16) has rectangular protrusions on its upper and lower sides respectively. The coolant storage chamber (13) has a corresponding slot at its bottom end. The rear end of the transport pipe (16) is fixedly connected to the front end of the coolant storage chamber (13). The transport pipe (16) is fixedly connected to the thermoelectric valve (17).

6. The protective structure for a new energy battery pack frame according to claim 1, characterized in that: The top of the outer shell (18) is fixedly connected to the bottom of the partition (15), the outer side of the outer shell (18) is fixedly connected to the inner side of the fixing frame (19), and the top of the coolant storage chamber (13) is provided with a slot corresponding to the second rubber plug (14).

7. The protective structure for a new energy battery pack frame according to claim 3, characterized in that: The top of the temperature-sensing spray head (121) is provided with a thread, and the bottom of the sealing cover (12) is provided with a threaded slot corresponding to the temperature-sensing spray head (121). The top of the temperature-sensing spray head (121) and the bottom of the sealing cover (12) are connected by a thread. The cavity (122) is provided with a water-based fire extinguishing agent, and the coolant storage chamber (13) is provided with silicone oil.

8. The protective structure for a new energy battery pack frame according to claim 2, characterized in that: The top of the anti-collision shell (21) is fixedly connected to the bottom of the grid anti-collision beam (22), and the top of the anti-collision mechanism (2) is connected to the bottom of the protection mechanism (1) by bolt thread.

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