New energy battery pack protection structure

Abstract

The utility model discloses a new energy battery pack protection structure, which belongs to the technical field of battery packs, and comprises an outer layer protection assembly, and an inner layer protection assembly is arranged in the outer layer protection assembly. Longitudinal buffering can be achieved, the longitudinal buffering structure can gradually absorb inertial impact force and stably control displacement of the battery pack through deformation of buffering materials such as a rubber pad and a spring in the acceleration and deceleration process of a vehicle, stability of internal components is guaranteed, stability of electrical connection is maintained, and continuous and normal power supply of a battery is guaranteed. Through the arrangement of the pair of transverse buffer springs, when a lateral force is encountered, for example, a vehicle runs at a high speed on a curve, the buffer device can disperse and absorb an impact force and protect a battery pack shell from being easily damaged, and meanwhile, stable transverse buffer can also reduce friction loss generated by vibration and collision between battery modules.

Description

Technical Field

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

[0002] In today's global trend of transitioning to low-carbon and environmentally friendly practices, the new energy vehicle industry is booming, and the new energy battery pack, as its core power source, is receiving increasing attention. With the popularization of new energy vehicles, the working environment faced by battery packs is becoming increasingly complex and diverse. On the one hand, during daily driving, vehicles inevitably encounter bumpy roads, and the resulting continuous vibration may cause the internal components of the battery to loosen, the connection points to fatigue and break, and thus lead to electrical faults. For example, when driving on some mountain roads with poor road conditions, the frequent vibration and impact place extremely high demands on the mechanical stability of the battery pack.

[0003] Chinese Patent Publication No. CN218939882U discloses a protective structure for a new energy vehicle battery pack. This solution utilizes a heat dissipation frame and heat dissipation plate to facilitate heat dissipation from the battery pack. A cover allows for easy sealing of the protective box, preventing the battery pack from falling out, and also dissipates heat through the cover, thus addressing the problem of poor heat dissipation when the battery pack is installed inside the protective box. The protective structure employs a second slider and a second sliding groove, facilitating the movement of partitions within the protective box. The second sliding groove allows for adjusting the number and position of partitions. However, the lack of longitudinal and lateral buffering during vehicle operation can lead to… From a longitudinal perspective, there are many drawbacks. When a vehicle accelerates or decelerates, the battery pack is subjected to impact forces in the front and rear directions due to inertia. Without longitudinal cushioning, the internal components of the battery pack may shift due to the sudden force, and the connecting wires may become tense or even break. This not only affects the normal power supply of the battery but may also cause short circuit faults. For example, during emergency braking, without longitudinal cushioning protection, the battery cells may be squeezed forward, damaging the structural integrity of the battery module. When the vehicle turns, changes lanes, or encounters a side collision, lateral forces are generated. Without lateral cushioning, the battery pack shell is easily dented and deformed due to side impacts. Once the shell is damaged, the battery module will be exposed to external hazards, increasing the risk of short circuits and fires. Moreover, rigid collisions may also cause the connections between battery modules to loosen, resulting in a decrease in the overall performance of the battery pack.

[0004] Therefore, a protective structure for new energy battery packs is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a protective structure for a new energy battery pack. Through the cooperation between the various parts of the auxiliary components, longitudinal buffering can be achieved. During the acceleration and deceleration of the vehicle, the longitudinal buffering structure can gradually absorb the inertial impact force through the deformation of buffer materials such as rubber pads and springs, smoothly control the displacement of the battery pack, ensure the stability of the internal components, maintain the stability of the electrical connection, and ensure the continuous and normal power supply of the battery.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A protective structure for a new energy battery pack includes an outer protective component, an inner protective component inside the outer protective component, and a pair of mutually symmetrical auxiliary components at both the upper and lower ends of the inner protective component.

[0008] The outer protective component includes a main shell, and a sealing cover is fixedly connected to the upper end of the main shell by bolts.

[0009] Furthermore, the inner protective assembly includes an upper mounting shell, and a lower mounting shell is provided at the lower end of the upper mounting shell. A pair of mutually symmetrical bolt fixing mounting plates are fixedly connected to the middle of the upper mounting shell and the lower mounting shell. The two pairs of bolt fixing mounting plates are arranged in a one-to-one correspondence. A new energy battery is installed between the upper mounting shell and the lower mounting shell.

[0010] Furthermore, the auxiliary component includes a sliding plate slidably connected inside the main body shell, with transverse buffer springs fixedly connected to both ends of the sliding plate, and each pair of transverse buffer springs fixedly connected to the inner sidewall of the main body shell.

[0011] Furthermore, a sliding rod is fixedly connected to the upper end of the sliding plate, and a pair of symmetrical sliding blocks are slidably connected to the middle of the sliding rod. A pair of symmetrical longitudinal buffer springs are also slidably connected to the middle of the sliding rod, and the pair of longitudinal buffer springs are respectively arranged in one-to-one correspondence with the pair of sliding blocks.

[0012] Furthermore, a hinge block is fixedly connected to the upper end of each pair of sliding blocks, a hinge rod is hinged to the upper end of each pair of hinge blocks, and a connecting block is hinged to the upper end of each pair of hinge rods.

[0013] Furthermore, the interior of the main body shell is provided with multiple strip-shaped sliding holes that are slidably connected to the sliding plate.

[0014] Furthermore, the overall shape of the sliding plate is U-shaped.

[0015] In summary, this utility model has the following beneficial effects:

[0016] (1) This solution can achieve longitudinal buffering through the cooperation between the various parts of the auxiliary components. The longitudinal buffering structure can gradually absorb the inertial impact force during the acceleration and deceleration of the vehicle through the deformation of buffer materials such as rubber pads and springs, and smoothly control the displacement of the battery pack, ensuring the stability of the internal components, maintaining the stability of the electrical connection, and ensuring the continuous and normal power supply of the battery.

[0017] (2) This solution uses a pair of lateral buffer springs. When encountering lateral forces, such as when the vehicle is traveling at high speed on a curve, the buffer device can disperse and absorb the impact force, protecting the battery pack shell from being easily damaged. At the same time, the stable lateral buffer can also reduce the friction loss between battery modules caused by vibration and collision, extend the service life of the battery pack, improve the overall safety and reliability of new energy vehicles, and provide a more solid guarantee for drivers and passengers.

[0018] (3) This solution has two layers of protection for the battery pack: an outer protective component and an inner protective component. If an accident occurs while the vehicle is in motion, the outer protective component can protect the battery from direct collision, while the inner protective component can provide secondary protection in more serious situations, thereby increasing overall safety. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure in this embodiment;

[0020] Figure 2 This is a schematic diagram of the overall disassembled structure in this embodiment;

[0021] Figure 3 This is a schematic diagram of the disassembled structure of the inner protective component in this embodiment;

[0022] Figure 4 This is a schematic diagram of the connection structure between the inner protective component and the auxiliary component in this embodiment;

[0023] Figure 5 This is a schematic diagram of the overall structure of the auxiliary components in this embodiment.

[0024] The following components are labeled in the diagram: 1. Outer protective assembly; 2. Inner protective assembly; 3. Auxiliary assembly; 101. Main outer shell; 102. Sealing cover; 201. Upper mounting shell; 202. Lower mounting shell; 203. Bolted mounting plate; 204. New energy battery; 301. Sliding plate; 302. Lateral buffer spring; 303. Sliding rod; 304. Sliding block; 305. Longitudinal buffer spring; 305. Hinge block; 307. Hinge rod; 308. Connecting block. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0027] Reference Figures 1-5 As shown, a new energy battery pack protection structure is provided in a preferred embodiment of the present utility model, including an outer protective component 1, an inner protective component 2 inside the outer protective component 1, and a pair of mutually symmetrical auxiliary components 3 at both the upper and lower ends of the inner protective component 2.

[0028] The outer protective component 1 includes a main shell 101, and a sealing cover plate 102 is fixedly connected to the upper end of the main shell 101 by bolts;

[0029] This solution achieves multiple protective effects by setting up an outer protective component 1, utilizing its main shell 101 and sealing cover 102. The main shell 101 is made of robust material, capable of directly withstanding external impact forces when the vehicle is involved in a collision, effectively blocking most of the collision forces from all directions of the vehicle, preventing foreign objects from directly impacting the internal battery, and providing a solid first line of defense for the battery pack. The sealing cover 102 is tightly fixed to the main shell 101 with bolts, which not only enhances the overall integrity of the outer protection, but also prevents the intrusion of dust, moisture, and small foreign objects during daily driving, ensuring that the internal battery is in a relatively clean and dry environment and maintaining stable battery performance.

[0030] Reference Figures 1-5 As shown, the inner protective component 2 includes an upper mounting shell 201, and a lower mounting shell 202 is provided at the lower end of the upper mounting shell 201. A pair of symmetrical bolt mounting plates 203 are fixedly connected to the middle of the upper mounting shell 201 and the lower mounting shell 202. The two pairs of bolt mounting plates 203 are arranged in a one-to-one correspondence. A new energy battery 204 is installed between the upper mounting shell 201 and the lower mounting shell 202.

[0031] This solution utilizes the upper mounting housing 201, lower mounting housing 202, and bolt-fixed mounting plate 203 to provide crucial protection. The upper and lower mounting housings 201 and 202 provide direct housing and protection for the new energy battery 204. When the outer protective component 1 fails to completely withstand impact forces, and some external forces breach the outer defenses, they act as secondary protective barriers, reducing the direct impact of the impact on the new energy battery 204 and preventing battery damage. The bolt-fixed mounting plate 203 secures the upper and lower mounting housings, ensuring structural stability. Furthermore, in the event of vibration or collision, it limits excessive battery displacement, maintains the relative positional stability of the battery module, and ensures the reliability of the electrical connection.

[0032] Reference Figures 3-5 As shown, the auxiliary component 3 includes a sliding plate 301 that is slidably connected inside the main body shell 101. Both the left and right ends of the sliding plate 301 are fixedly connected with transverse buffer springs 302, and both transverse buffer springs 302 are fixedly connected to the inner sidewall of the main body shell 101.

[0033] Reference Figures 3-5 As shown, a sliding rod 303 is fixedly connected to the upper end of the sliding plate 301. A pair of symmetrical sliding blocks 304 are slidably connected in the middle of the sliding rod 303. A pair of symmetrical longitudinal buffer springs 305 are also slidably connected in the middle of the sliding rod 303. The pair of longitudinal buffer springs 305 are respectively arranged in a one-to-one correspondence with the pair of sliding blocks 304.

[0034] Reference Figures 3-5 As shown, a pair of sliding blocks 304 are fixedly connected to the upper ends of a pair of sliding blocks 304, a pair of hinged rods 307 are hinged to the upper ends of a pair of hinged blocks 306, and a pair of connecting blocks 308 are hinged to the upper ends of a pair of hinged rods 307.

[0035] This solution comprises a longitudinal buffer system consisting of a sliding rod 303, a sliding block 304, a longitudinal buffer spring 305, a hinge block 306, a hinge rod 307, and a connecting block 308. During vehicle acceleration or deceleration, the battery pack experiences forward and backward displacement due to inertia. The connecting block 308 is forced to pull the hinge rod 307, which in turn causes the hinge block 306 to slide the sliding block 304 on the sliding rod 303. This causes the longitudinal buffer spring 305 to deform under stress, gradually absorbing the inertial impact force, smoothly controlling the battery pack displacement, ensuring the stability of the new energy battery 204 and its internal components such as connecting lines within the inner protective assembly 2, maintaining stable electrical connections, and ensuring continuous and normal battery power supply.

[0036] Reference Figure 2 As shown, the interior of the main body shell 101 has multiple strip-shaped sliding holes that are slidably connected to the sliding plate 301.

[0037] Reference Figures 3-5 As shown, the overall shape of the sliding plate 301 is U-shaped;

[0038] Specific implementation process: During vehicle acceleration or deceleration, the battery pack will experience a tendency to shift in the front-to-back direction due to inertia. At this time, the longitudinal buffer structure in the auxiliary component 3 begins to operate. Specifically, as the battery pack moves, the connecting block 308 connected to the inner protective component 2 is subjected to force, driving the hinge rod 307 to move. The hinge rod 307, in turn, causes the hinge block 306 and the sliding block 304 fixed thereto to slide on the sliding rod 303. During this process, the longitudinal buffer spring 305 located between the sliding blocks 304 is subjected to force and deforms, and the elastic potential energy of the spring gradually increases. Through this deformation, the spring gradually... The outer protective component 1 absorbs inertial impact force and smoothly controls the displacement of the battery pack, ensuring the stability of the new energy battery 204 and its connecting lines and other internal components within the inner protective component 2, maintaining stable electrical connections, and ensuring continuous and normal battery power supply. When the vehicle turns, changes lanes, or encounters a side collision, lateral forces are generated on the battery pack. On one hand, the main shell 101 of the outer protective component 1 first bears the impact force; its robust material can withstand a certain degree of external force, preventing direct damage to the internal battery. At the same time, the lateral buffer spring 302 in the auxiliary component 3 plays a crucial role, and the sliding plate 301... Sliding within the strip-shaped sliding hole inside the main body shell 101, the lateral buffer springs 302 connected to the left and right ends of the sliding plate 301 are compressed. Through their own deformation, they disperse and absorb lateral impact forces, protecting the main body shell 101 of the battery pack from easy damage, maintaining the sealed state of the battery module, and preventing dust and moisture from entering. Moreover, the stable lateral buffer also reduces frictional losses between battery modules caused by vibration and collision, extending the service life of the battery pack and improving the overall safety and reliability of new energy vehicles. In addition, the outer protective component 1 and the inner protective component 2 of the battery pack constitute a double... In normal driving, the outer protective component 1's main shell 101 and sealing cover 102 can block most of the intrusion of external dust, moisture and small foreign objects. If the vehicle is involved in an accidental collision, the outer protective component 1 acts as the first line of defense to protect the battery from direct impact. When the impact force is large enough to break through the outer protection, the structure composed of the upper mounting shell 201, lower mounting shell 202 and bolt-fixed mounting plate 203 of the inner protective component 2 can play a secondary protection role in more serious cases, further ensuring the safety of the new energy battery 204 and increasing the overall safety.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A protective structure for a new energy battery pack, comprising an outer protective component (1), characterized in that: The outer protective component (1) is provided with an inner protective component (2), and the upper and lower ends of the inner protective component (2) are provided with a pair of mutually symmetrical auxiliary components (3). The outer protective component (1) includes a main shell (101), and a sealing cover plate (102) is fixedly connected to the upper end of the main shell (101) by bolts. The inner protective component (2) includes an upper mounting shell (201), and a lower mounting shell (202) is provided at the lower end of the upper mounting shell (201). A pair of symmetrical bolt fixing mounting plates (203) are fixedly connected to the middle of the upper mounting shell (201) and the lower mounting shell (202). The two pairs of bolt fixing mounting plates (203) are arranged in a one-to-one correspondence. A new energy battery (204) is installed between the upper mounting shell (201) and the lower mounting shell (202). The auxiliary component (3) includes a sliding plate (301) slidably connected inside the main body shell (101). Both ends of the sliding plate (301) are fixedly connected with transverse buffer springs (302), and both of the transverse buffer springs (302) are fixedly connected to the inner sidewall of the main body shell (101).

2. The protective structure for a new energy battery pack according to claim 1, characterized in that: The upper end of the sliding plate (301) is fixedly connected to a sliding rod (303), and a pair of mutually symmetrical sliding blocks (304) are slidably connected in the middle of the sliding rod (303). A pair of mutually symmetrical longitudinal buffer springs (305) are also slidably connected in the middle of the sliding rod (303). The pair of longitudinal buffer springs (305) are respectively arranged in a one-to-one correspondence with the pair of sliding blocks (304).

3. The protective structure for a new energy battery pack according to claim 2, characterized in that: A hinge block (306) is fixedly connected to the upper end of each pair of sliding blocks (304), a hinge rod (307) is hinged to the upper end of each pair of hinge blocks (306), and a connecting block (308) is hinged to the upper end of each pair of hinge rods (307).

4. The protective structure for a new energy battery pack according to claim 3, characterized in that: The main body shell (101) has multiple strip-shaped sliding holes that are slidably connected to the sliding plate (301).

5. The protective structure for a new energy battery pack according to claim 4, characterized in that: The sliding plate (301) has an overall U-shaped configuration.

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