Energy storage battery with anti-collision function

Abstract

This invention discloses an energy storage battery with anti-collision function, relating to the field of battery technology. It includes a casing and battery modules, and further comprises: an anti-collision component, which includes a buffer plate slidably connected to the casing, forming a buffer channel between the buffer plate and the casing for buffering the impact force received by the buffer plate; a heat absorption and isolation component, which includes a partition plate located between the battery modules, with a heat absorption plate slidably connected within the partition plate. When the buffer plate reaches an impact threshold, the buffer channel drives the heat absorption plate to slide and isolate the battery modules; and a cooling component, which includes a cooling plate located between the casing and the battery modules for heat exchange between the battery modules. The cooling plate and the heat absorption plate form a transformation structure. This invention not only buffers and reduces vibration when the battery is impacted, but also isolates and cools the battery, preventing the spread of battery fire.

Description

Technical Field

[0001] This invention relates to the field of battery technology, and in particular to an energy storage battery with anti-collision function. Background Technology

[0002] With the increasing emphasis on environmental protection and the development of technology, new energy sources will gradually replace traditional energy sources as the dominant force, leading to the rapid development of the new energy vehicle industry. Current new energy vehicles generally use electricity or a hybrid of electricity and gasoline as their power source, but all rely on batteries, making battery safety particularly important. New energy vehicle batteries have high requirements for impact resistance to ensure continuous and stable power output. Compared to traditional vehicles, electric vehicles are unique in collisions because the high-energy, high-mass power batteries may catch fire or explode when subjected to compression damage during a collision.

[0003] Chinese Patent Application No. 202310691764.9 discloses a new energy vehicle battery with anti-collision function, comprising a shell and multiple batteries, all of which are located inside the shell. Two terminals are installed on the top side of each battery. A connector is installed on the shell. A protective cover is installed on the bottom side of the shell, and a mounting base plate is installed on the bottom side of the protective cover. The battery also includes a shock-absorbing and temperature-controlling device installed inside the shell. This device includes a bottom water bladder, on which multiple battery-encased water bladders are installed. These battery-encased water bladders are all connected to the bottom water bladder, and the batteries are all fitted inside the battery-encased water bladders. The battery is encased in a water bladder filled with insulating oil. It also includes a heat dissipation device mounted on the bottom side of the mounting base, which assists the shock-absorbing and temperature-controlling device in dissipating heat. A support and protective device is mounted on the mounting base, connected to the heat dissipation device, and protects multiple batteries. While this solution provides some impact protection and battery isolation, when the impact threshold is reached, foreign objects may puncture the battery and the bottom water bladder, causing the insulating oil to leak out from the bottom, failing to achieve a cooling effect. Furthermore, it cannot isolate or change the heat-absorbing cooling position based on the punctured battery, thus reducing the heat-absorbing cooling effect when the battery is impacted.

[0004] Therefore, an energy storage battery with anti-collision function is invented to solve the above problems. Summary of the Invention

[0005] The main objective of this invention is to provide an energy storage battery with anti-collision function, which can effectively solve the technical problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an energy storage battery with anti-collision function, comprising a casing and a battery module, and further comprising:

[0007] The anti-collision assembly includes a buffer plate slidably connected to the housing, wherein the buffer plate and the housing form a buffer channel for buffering the impact force received by the buffer plate;

[0008] A heat-absorbing partition assembly includes a partition located between the battery modules, and a heat-absorbing plate slidably connected inside the partition. When the buffer plate reaches the impact threshold, the buffer channel drives the heat-absorbing plate to slide and isolate the battery modules.

[0009] A cooling assembly includes a cooling plate located between the housing and the battery module for heat exchange with the battery module. The cooling plate and the heat absorber form a transformation structure. When the buffer plate reaches the impact threshold, the cooling plate injects a cooling medium into the heat absorber through the transformation structure.

[0010] Preferably, the anti-collision assembly includes two mounting blocks fixedly connected to the housing, and the buffer plate is located between the two mounting blocks.

[0011] Preferably, the buffer channel includes multiple support rods and support blocks. The support rods are slidably connected to the outer shell and fixedly connected to the buffer plate. The support blocks are slidably connected to the buffer plate and hinged with connecting rods. The free end of the connecting rods is hinged to the outer shell. An elastic element is provided between the support block and the buffer plate. The support rods can contact the heat-absorbing plate.

[0012] Preferably, the partition heat absorption assembly includes a heat absorption tube located inside the heat absorption plate, with both ends of the heat absorption tube extending out of the heat absorption plate and having telescopic tubes.

[0013] Preferably, the cooling assembly includes a cooling pipe located within the cooling plate, a condenser is provided inside the housing, a conduit is provided on the condenser, and both ends of the cooling pipe are connected to the conduit.

[0014] Preferably, the transformation structure includes an electronic valve located inside the cooling pipe, and the telescopic pipe is slidably connected to the conduit.

[0015] Preferably, when the buffer plate is in normal condition, the telescopic tube is in contact with the inner wall of the conduit but not in communication, and the cooling medium is injected into the cooling tube. When the buffer plate reaches the buffer threshold, the electronic valve is closed, and the cooling medium is injected into the heat absorption tube through the telescopic tube.

[0016] Preferably, the housing is provided with an isolation ring, and the battery module and the separator are both located within the isolation ring.

[0017] Preferably, a heat-conducting sheet is provided between the battery module and the cooling plate.

[0018] Preferably, a protective cover is installed on the outer casing to protect the battery module.

[0019] The technical effects and advantages of this invention are as follows:

[0020] This invention utilizes a tiered, interconnected structure consisting of a buffer plate, support rod, heat-absorbing plate, and telescopic tube. When the buffer plate is impacted by an external object, it provides a certain degree of cushioning and vibration reduction. When the impact force on the buffer plate exceeds the impact threshold, the external object may puncture the battery module. This causes the buffer plate to slide along the partition via the support rod, separating adjacent battery modules and preventing heat transfer between them. Simultaneously, the cooling medium circulates through the telescopic tube within the heat-absorbing tube of the heat-absorbing plate, absorbing heat and cooling the sides of the battery module. This prevents the cooling plate from becoming less effective after being punctured, ensuring that the separation and cooling of the battery module occur simultaneously, further reducing the risk of fire when the battery module is impacted. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 A magnified view of a section at point A in the middle;

[0023] Figure 3 This is a schematic diagram showing the overall structure of the present invention;

[0024] Figure 4 This is a cross-sectional view of the structure of the present invention after the protective cover has been removed;

[0025] Figure 5 This is a partial cross-sectional view of the structure of the outer shell, the partition heat-absorbing component, and the cooling component in this invention;

[0026] Figure 6 For the present invention Figure 5 A magnified view of a section at point B in the middle;

[0027] Figure 7 This is a schematic diagram of the cooling component and the heat absorption component of the present invention;

[0028] Figure 8 This is a schematic diagram showing the unfolded structure of the outer shell and buffer assembly in this invention.

[0029] In the image: 1. Outer casing; 2. Battery module;

[0030] 3. Anti-collision components; 301. Buffer plate; 302. Buffer channel; 3021. Support rod; 3022. Support block; 3023. Connecting rod; 3024. Elastic element; 303. Mounting block;

[0031] 4. Partition heat absorption assembly; 401. Partition plate; 402. Heat absorption plate; 403. Heat absorption pipe; 404. Telescopic pipe;

[0032] 5. Cooling components; 501. Cooling plate; 502. Transformer structure; 5021. Electronic valve; 503. Cooling pipe; 504. Condenser; 505. Pipe;

[0033] 6. Isolation ring; 7. Heat-conducting sheet; 8. Protective cover. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1

[0036] In the prior art, when the battery module 2 is subjected to external impact, there is no buffering. The external impact force will directly act on the battery module 2, which can easily cause the battery module 2 to be directly damaged or even cause the battery module 2 to overheat and catch fire, causing injury to people. Therefore, this embodiment is invented to solve this problem.

[0037] like Figures 1 to 3 and Figure 8 As shown, this embodiment provides an energy storage battery with anti-collision function, including a shell 1 and a battery module 2, and further including: an anti-collision component 3, which includes a buffer plate 301 slidably connected to the shell 1, and a buffer channel 302 is formed between the buffer plate 301 and the shell 1 for buffering the impact force received by the buffer plate 301.

[0038] The anti-collision component 3 includes two mounting blocks 303 fixedly connected to the outer shell 1. The buffer plate 301 is located between the two mounting blocks 303. The buffer channel 302 includes multiple support rods 3021 and support blocks 3022. The support rods 3021 are slidably connected to the outer shell 1 and fixedly connected to the buffer plate 301. The support blocks 3022 are slidably connected to the buffer plate 301 and are hinged with connecting rods 3023. The free end of the connecting rods 3023 is hinged to the outer shell 1. An elastic element 3024 is provided between the support blocks 3022 and the buffer plate 301. The support rods 3021 can contact the heat-absorbing plate 402.

[0039] An isolation ring 6 is provided inside the outer casing 1. The battery module 2 and the separator 401 are both located inside the isolation ring 6. A protective cover 8 is installed on the outer casing 1 to protect the battery module 2.

[0040] In actual use, when the chassis of a car is subjected to an external impact during driving, the impact force acts on the buffer plate 301 through the chassis, causing the buffer plate 301 to slide along the outer shell 1 via the support rod 3021. The buffer plate 301 drives the connecting rod 3023 to move towards the outer shell 1 via the support block 3022. Since the free end of the connecting rod 3023 is hinged to the outer shell 1, the connecting rod 3023 can drive the support block 3022 to slide along the buffer plate 301, compressing the elastic element 3024. At this time, the buffer plate... The external impact force received by 301 can be buffered when the connecting rod 3023 drives the support block 3022 to slide laterally along the buffer plate 301, thereby preventing the external impact force from acting directly on the battery module 2 through the chassis. In this process, the battery module 2 can be protected and anti-collision, avoiding the problem of the battery module 2 being damaged when subjected to slight impact. In addition, the isolation ring 6 and the protective cover 8 can provide overall protection for the battery module 2 and reduce the vibration of the battery module 2, ensuring the normal operation of the battery module 2.

[0041] Example 2

[0042] During use, it was found that when the external impact force exceeds the impact threshold of the buffer plate 301, the foreign object may puncture the battery module 2. When the battery module 2 is punctured, the cooling system at the bottom of the battery module 2 will also be punctured. This will cause the temperature of the punctured battery module 2 to rise sharply, and it may even catch fire. The fire will spread to other battery modules 2. There are no other cooling mechanisms or isolation for the battery modules 2, which will cause the entire battery module 2 to be burned. Therefore, further improvements were made based on the above embodiments.

[0043] like Figures 3 to 7 As shown, the heat absorption component 4 includes a partition 401 located between the battery modules 2, and a heat absorption plate 402 is slidably connected inside the partition 401. When the buffer plate 301 reaches the impact threshold, the buffer channel 302 drives the heat absorption plate 402 to slide and isolate the battery module 2.

[0044] The cooling assembly 5 includes a cooling plate 501 located between the outer casing 1 and the battery module 2 for heat exchange of the battery module 2. The cooling plate 501 and the heat absorption plate 402 form a transformation structure 502. When the buffer plate 301 reaches the impact threshold, the cooling plate 501 injects the cooling medium into the heat absorption plate 402 through the transformation structure 502.

[0045] The partition heat absorption assembly 4 includes a heat absorption pipe 403 located inside the heat absorption plate 402. Both ends of the heat absorption pipe 403 extend out of the heat absorption plate 402 and are provided with telescopic pipes 404.

[0046] The cooling assembly 5 includes a cooling pipe 503 located inside the cooling plate 501, a condenser 504 is provided inside the outer casing 1, a conduit 505 is provided on the condenser 504, both ends of the cooling pipe 503 are connected to the conduit 505, and a heat-conducting plate 7 is provided between the battery module 2 and the cooling plate 501.

[0047] The transformation structure 502 includes an electronic valve 5021 located inside the cooling pipe 503. The telescopic pipe 404 is slidably connected to the conduit 505. When the buffer plate 301 is in normal condition, the telescopic pipe 404 is in contact with the inner wall of the conduit 505 and is not connected. The cooling medium is injected into the cooling pipe 503. When the buffer plate 301 reaches the buffer threshold, the electronic valve 5021 is closed, and the cooling medium is injected into the heat absorption pipe 403 through the telescopic pipe 404.

[0048] In actual use, when the impact force on the buffer plate 301 exceeds the impact threshold, and a heat-conducting sheet 7 is provided between the battery module 2 and the cooling plate 501 to facilitate the heat transfer of the battery module 2, the elastic element 3024 is compressed to its limit. The foreign object continues to impact upwards, piercing the buffer plate 301 and the outer shell 1 and piercing the battery module 2. At the same time, the foreign object pierces the cooling pipe 503. Since the electronic valve 5021 is electrically connected to the control panel, and the connection method is existing technology, the specific connection method will not be described in detail. When the flow rate of the cooling medium in the cooling pipe 503 changes, the electronic valve 5021 is closed by controlling the control panel, so that the cooling medium no longer flows into the cooling pipe 503 in the cooling plate 501 through the conduit 505, avoiding the problem of short circuit of the battery module 2 caused by water leakage. The cooling pipe 503 and the heat absorption pipe 403 are both serpentine.

[0049] Simultaneously, the support rod 3021 slides upward along the outer shell 1, gradually contacting the extended end of the heat absorber plate 402. This causes the support rod 3021 to drive the heat absorber plate 402 to slide upward along the partition 401 via the extended end of the heat absorber plate 402. This allows the partition 401 and the heat absorber plate 402 to isolate adjacent battery modules 2, preventing the temperature of the punctured battery module 2 from spreading to adjacent battery modules 2. Simultaneously, the heat absorber plate 402 drives the telescopic tube 404 to slide along the conduit 505 via the heat absorber pipe 403, thus connecting the telescopic tube 404 to the conduit 505. When the telescopic tube 404 slides to its maximum distance along the conduit 505, it should be noted that the inner end of the telescopic tube 404 is fixedly connected to the inner wall of the heat absorber pipe 403. The telescopic tube 404 is slidably connected to the conduit 505. The telescopic tube 404 extends and retracts to meet the movement distance of the heat absorber plate 402. A water pump is installed at the condenser 504 to facilitate the flow of the cooling medium. At the same time, after the condenser 504 condenses the cooling medium, it is injected back into the heat absorber tube 403 in the heat absorber plate 402 through the conduit 505 and the telescopic tube 404 and circulates through the conduit 505. At this time, the cooling medium in the heat absorber tube 403 absorbs and carries away the heat on the battery module 2, thereby preventing the temperature of the battery module 2 from rising sharply and reducing the possibility of combustion of the battery module 2. It can also protect the intact battery module 2. In this way, in the later repair, only the punctured battery module 2 needs to be replaced.

[0050] In summary, through the step-by-step linkage structure of the buffer plate 301, support rod 3021, heat absorber plate 402, and telescopic tube 404, the buffer plate 301 can buffer and dampen the impact force to a certain extent when it is impacted by an external object. When the impact force on the buffer plate 301 exceeds the impact threshold, the external object may puncture the battery module 2, causing the buffer plate 301 to drive the heat absorber plate 402 to slide along the partition plate 401 via the support rod 3021, thus enabling the heat absorber plate 402 to slide along the partition plate 401. 02 and the partition 401 separate adjacent battery modules 2 to prevent heat transfer between adjacent battery modules 2. At the same time, the cooling medium is injected into the heat absorption pipe 403 in the heat absorption plate 402 through the telescopic pipe 404 to circulate and absorb heat to cool the side of the battery module 2. This prevents the cooling plate 501 from being punctured and reducing the heat absorption and cooling effect on the battery module 2. This ensures that the separation and heat absorption and cooling of the battery module 2 are carried out simultaneously, further reducing the problem of the battery module 2 catching fire when it is impacted.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An energy storage battery with anti-collision function, comprising a casing and a battery module, characterized in that, Also includes: A collision avoidance assembly includes a buffer plate slidably connected to the outer shell, forming a buffer channel between the buffer plate and the outer shell for buffering impact forces received by the buffer plate; the collision avoidance assembly includes two mounting blocks fixedly connected to the outer shell, with the buffer plate located between the two mounting blocks; the buffer channel includes multiple support rods and support blocks, the support rods being slidably connected to the outer shell and fixedly connected to the buffer plate, the support blocks being slidably connected to the buffer plate and hinged with connecting rods, the free end of the connecting rods being hinged to the outer shell, an elastic element being provided between the support blocks and the buffer plate, and the support rods being able to contact a heat-absorbing plate; A heat-absorbing partition assembly includes a partition located between the battery modules. A heat-absorbing plate is slidably connected within the partition. When the buffer plate reaches an impact threshold, a support rod slides upward along the outer shell, gradually contacting the extension end of the heat-absorbing plate. This causes the support rod to drive the heat-absorbing plate to slide upward along the partition via the extension end of the heat-absorbing plate, thereby isolating the adjacent battery modules. The heat-absorbing partition assembly also includes a heat-absorbing tube located within the heat-absorbing plate, with both ends of the heat-absorbing tube extending out of the heat-absorbing plate and equipped with telescopic tubes. A cooling assembly includes a cooling plate located between the outer casing and the battery module for heat exchange with the battery module. The cooling plate and the heat-absorbing plate form a transformation structure. When the buffer plate reaches an impact threshold, the cooling plate injects cooling medium into the heat-absorbing plate through the transformation structure. The cooling assembly includes a cooling pipe located within the cooling plate. A condenser is provided within the outer casing, and a conduit is provided on the condenser. Both ends of the cooling pipe are connected to the conduit. The transformation structure includes an electronic valve located within the cooling pipe. A telescopic tube is slidably connected to the conduit. When the buffer plate is in a normal state, the telescopic tube is in contact with the inner wall of the conduit but not in communication, and cooling medium is injected into the cooling pipe. When the buffer plate reaches a buffer threshold, the electronic valve closes, and cooling medium is injected into the heat-absorbing tube through the telescopic tube.

2. The energy storage battery with anti-collision function according to claim 1, characterized in that: An isolation ring is provided inside the outer casing, and the battery module and the separator are both located within the isolation ring.

3. The energy storage battery with anti-collision function according to claim 2, characterized in that: A heat-conducting sheet is provided between the battery module and the cooling plate.

4. The energy storage battery with anti-collision function according to claim 3, characterized in that: A protective cover is installed on the outer casing to protect the battery module.

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