New energy automobile battery box
By introducing battery pack separators, limiting plates, and supporting ladders into the battery box of new energy vehicles, combined with ventilation slots and airflow circulation slots, the problem of battery deflagration during impact is solved, achieving higher protection and heat dissipation, and improving the convenience of battery maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING HUIBANG NEW ENERGY TECH CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-08-04
AI Technical Summary
Existing new energy vehicle batteries are prone to exploding when subjected to external impacts, and existing battery box protection measures are insufficient and cannot effectively prevent battery damage.
A new energy vehicle battery box is designed, including a box body and a sealing mechanism. The internal structure includes battery pack separators, limiting plates and battery support ladders. The combination of separators and support ladders forms a buffer space between the batteries. Ventilation slots and airflow circulation slots are provided on the outer surface to improve heat dissipation performance. At the same time, a fixing clamp is used for individual fixation.
It effectively reduces battery damage when subjected to impact or puncture, improves battery protection and heat dissipation efficiency, and facilitates battery maintenance and replacement.
Smart Images

Figure CN224595657U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of new energy battery box technology, and in particular to a new energy vehicle battery box. Background Technology
[0002] The power source for new energy vehicles is the battery, which drives the motor through battery discharge. Currently, most new energy vehicle batteries are lithium-ion batteries such as ternary lithium batteries and lithium iron phosphate batteries. Due to their inherent characteristics, these batteries are susceptible to explosion and combustion from external impacts. Meanwhile, relatively safe solid-state batteries are not yet widely available and have stringent operating conditions. Therefore, existing lithium-ion batteries such as ternary lithium batteries and lithium iron phosphate batteries will remain the mainstream batteries for a considerable period.
[0003] To improve battery impact resistance, automakers typically install battery packs to protect the battery. However, existing battery packs are mostly armor covering the outer surface of the battery. When the battery pack is squeezed, deformed, or punctured, the battery inside is still susceptible to damage and potential explosion.
[0004] Therefore, this application proposes a new energy vehicle battery box to improve the protection of the vehicle battery. Utility Model Content
[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a new energy vehicle battery box to solve the problem that new energy batteries are prone to explosion and combustion after being impacted in the prior art.
[0006] To achieve the above and other related objectives, this utility model provides a new energy vehicle battery box, including a box body mechanism, wherein a sealing mechanism is provided at the opening of the box body mechanism;
[0007] The housing mechanism includes a housing armor, inside which multiple sets of automotive batteries are placed. Several battery pack separators are arranged in parallel inside the housing armor. Battery support ladders are provided on the opposite sides of two adjacent battery pack separators. Several limiting plates are equidistantly arranged between two adjacent battery pack separators. The battery pack separators and limiting plates cooperate to separate and limit each set of automotive batteries. The bottom of each automotive battery is placed on top of the battery support ladders.
[0008] Preferably, all of the battery pack separators have a buffer cavity inside.
[0009] Preferably, the outer surface of the battery pack separator is provided with a ventilation groove, which communicates with the buffer cavity.
[0010] Preferably, the bottom of the box armor is provided with an airflow circulation groove, which is in communication with the interior of the buffer cavity.
[0011] Preferably, all of the battery pack separators are provided with a nut fixing post at the top, and a fixing clamp adapted to the number of vehicle batteries is installed on the nut fixing post. The fixing clamp and the nut fixing post cooperate to fix and constrain the vehicle batteries.
[0012] Preferably, the fixing clamp is bow-shaped, with both ends of the fixing clamp spanning the gap between two adjacent battery pack separators, and both ends of the fixing clamp are penetrated by nut fixing posts and connected by bolts;
[0013] The interior of the battery pack separator overlaps with the outer surface of the vehicle battery.
[0014] Preferably, the bottom of the outer surface of the box armor is provided with a mounting wing plate, and the mounting wing plate has several through holes.
[0015] Preferably, the sealing mechanism includes a sealing cover, the top of which is provided with a rib groove, and a gap is left between the inner top of the sealing cover and the top of the vehicle battery.
[0016] Preferably, the rib groove protrudes towards the top of the sealing cover.
[0017] Preferably, a ramp is provided at the connection between the battery support ladder and the battery pack separator, and the ramp extends upward along the edge of the battery pack separator.
[0018] As described above, the new energy vehicle battery box of this utility model has the following beneficial effects:
[0019] 1. This utility model isolates multiple car batteries by setting battery pack separators and limiting plates inside the housing armor, and provides deformation space between all car batteries. At the same time, battery support ladders are set on both sides of the battery pack separators to support the car batteries, so that the car batteries are in a suspended state. When the housing mechanism and / or sealing mechanism are impacted or punctured, the gaps between the car batteries will form a buffer, thereby reducing the impact and puncture forces on the car batteries and improving the protection of the car batteries.
[0020] At the same time, each car battery can be individually fixed and installed using a fixing clamp, making it easier to repair and replace damaged car batteries during maintenance.
[0021] 2. This utility model provides a buffer cavity inside the battery pack separator, which allows the battery pack separator to deform inward when subjected to external impact force, thereby reducing the impact force and reducing the displacement distance of the car battery at the impact end, reducing the pressure on the subsequent car batteries, and achieving the effect of further improving safety.
[0022] 3. This utility model improves the heat dissipation efficiency of the car battery by setting ventilation grooves on the outer surface of the battery pack separator, and the ventilation grooves are connected to the buffer cavity. At the same time, an airflow circulation groove is set at the bottom of the housing armor. External airflow can enter the interior of the housing armor through the airflow circulation grooves and ventilation grooves.
[0023] At the same time, the ventilation slots make the battery pack separators more prone to deformation, so as to prevent the battery support ladder from being damaged by the hard compression of the battery pack separators after being impacted.
[0024] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. Attached Figure Description
[0025] Figure 1 The diagram shown is a structural schematic of this utility model.
[0026] Figure 2 The diagram shown is a cross-sectional view of the internal structure of this utility model.
[0027] Figure 3 The diagram shown is a structural schematic of the box-shaped mechanism of this utility model.
[0028] Figure 4 The diagram shown is a cross-sectional view of the box-shaped mechanism of this utility model.
[0029] Figure 5 The image shown is a bottom view of the box-shaped mechanism of this utility model.
[0030] Figure 6 The diagram shown is a structural schematic of the sealing mechanism of this utility model.
[0031] Component designation explanation:
[0032] 1. Enclosure structure; 11. Enclosure armor; 12. Mounting wing plate; 13. Battery pack separator; 131. Buffer chamber; 132. Ventilation slot; 14. Battery support ladder; 15. Nut fixing post; 16. Limiting plate; 17. Airflow circulation slot;
[0033] 2. Sealing mechanism; 21. Sealing cover; 22. Rib groove;
[0034] 3. Fixing clamps; 4. Car battery. Detailed Implementation
[0035] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0036] Please see Figures 1 to 6It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0037] like Figures 1-3 As shown, this utility model provides a battery box for a new energy vehicle, including a box body 1 for placing and protecting the vehicle battery 4. A sealing mechanism 2 is provided at the opening of the box body 1 to seal the opening of the box body 1.
[0038] Specifically, the housing mechanism 1 includes a housing armor 11. Multiple sets of automotive batteries 4 are housed inside the housing armor 11. Each set of automotive batteries 4 is independent of the others, and all automotive batteries 4 are interconnected in parallel or series via wires, ultimately extending out of the housing armor 11 from its side. Several battery pack separators 13 are arranged parallel to each other inside the housing armor 11 to separate adjacent automotive batteries 4, thus creating a buffer gap between two adjacent automotive batteries 4. Battery support ladders 14 are provided on the opposite sides of two adjacent battery pack separators 13. The bottom of the automotive battery 4 rests on the top of the battery support ladders 14, thus suspending the bottom of the automotive battery 4 and increasing the distance for buffering and force dissipation. This also increases the heat dissipation of the automotive battery 4. Several limiting plates 16 are equidistantly arranged between two adjacent battery pack separators 13. The battery pack separators 13 and the limiting plates 16 cooperate to separate and limit each set of automotive batteries 4, ensuring that each set of automotive batteries 4 can be limited and relatively independent. When any one of the car batteries 4 is impacted, the impact on the other car batteries 4 can be minimized.
[0039] like Figure 4 As shown, in some embodiments, all battery pack separators 13 of this invention have a buffer cavity 131 inside. When the battery pack separator 13 is subjected to external force, the buffer cavity 131 allows the battery pack separator 13 to deform more easily. Furthermore, the battery pack separator 13 will first indent inward from the force-bearing surface to dissipate the impact force. Only when the impact force is excessive will it bend as a whole to compress the remaining automotive batteries 4, further enhancing the protection of the automotive batteries 4.
[0040] like Figure 3 As shown, in some embodiments, the outer surface of the battery pack separator 13 of this invention has a ventilation groove 132, which communicates with the buffer cavity 131. The ventilation groove 132 divides the battery pack separator 13 into several deformation regions. When the outer surface of the battery pack separator 13 is subjected to impact, the divided battery pack separator 13 is more prone to deformation than the whole battery pack separator 13, thus improving the protective performance of the battery pack separator 13 for the automotive battery 4.
[0041] like Figure 4 and Figure 5 As shown, in some embodiments, the bottom of the housing armor 11 of this utility model is provided with an airflow circulation groove 17, which communicates with the interior of the buffer cavity 131. External airflow can enter the interior of the housing armor 11 through the airflow circulation groove 17 and the ventilation groove 132, thereby forming an airflow circulation inside the housing armor 11, which assists the battery cooling device in dissipating heat from the car battery 4 and improves the heat dissipation performance of the car battery 4.
[0042] like Figure 2 and Figure 3 As shown, in some embodiments, all battery pack separators 13 of this invention are provided with a nut fixing post 15 at their top. A fixing clamp 3, matching the number of automotive batteries 4, is installed on the nut fixing post 15. The fixing clamp 3 and the nut fixing post 15 work together to fix and constrain the automotive batteries 4. This allows each group of automotive batteries 4 to be individually fixed, facilitating subsequent maintenance by only disassembling the batteries 4 requiring maintenance, thus improving maintenance convenience. Simultaneously, by placing the nut fixing post 15 at the top of the battery pack separator 13, when the battery pack separator 13 deforms, the nut fixing post 15 and the fixing clamp 3 will shift with the deformation of the battery pack separator 13, thereby preventing the automotive batteries 4 from being excessively stretched and damaged.
[0043] The fixing clamp 3 is bow-shaped, with both ends spanning the gap between two adjacent battery pack separators 13. The two ends of the fixing clamp 3 are penetrated by nut fixing posts 15 and connected by bolts. This bolted connection improves the ease of installing and removing the fixing clamp 3. The interior of the battery pack separator 13 overlaps with the outer surface of the vehicle battery 4, thus completely confining the vehicle battery 4 and preventing it from shaking or impacting during vehicle movement.
[0044] like Figure 1 and Figure 2As shown, in some embodiments, a mounting wing plate 12 is provided at the bottom of the outer surface of the housing armor 11 of this utility model, and the mounting wing plate 12 has several through holes. The mounting wing plate 12 can be used with bolts to install the entire battery box on a car.
[0045] like Figure 6 As shown, in some embodiments, the sealing mechanism 2 of this utility model includes a sealing cover 21. A rib groove 22 is provided on the top of the sealing cover 21. The rib groove 22 increases the strength of the sealing cover 21, preventing it from easily deforming. A gap is left between the inner top of the sealing cover 21 and the top of the car battery 4. This gap also serves as a buffer gap for force dissipation, preventing external forces on the sealing cover 21 from directly acting on the car battery 4.
[0046] like Figure 1 , Figure 2 and Figure 6 As shown, in some embodiments, the rib groove 22 of this invention protrudes towards the top of the sealing cover 21. When the sealing cover 21 is subjected to excessive force, the sealing cover 21 can deform along the arching direction of the rib groove 22. This avoids the sealing cover 21 deforming into the square shape of the car battery 4 and thus compressing the car battery 4.
[0047] like Figure 3 and Figure 4 As shown, in some embodiments, a ramp is provided at the connection between the battery support ladder 14 and the battery pack separator 13, and the ramp extends upward along the edge of the battery pack separator 13. When the car battery 4 is displaced under force, the car battery 4 under force will tilt and move upward along the direction of the ramp, so as to reduce the impact force on the subsequent car batteries 4 during the displacement of the car battery 4 and improve the protection performance.
[0048] In summary, the new energy vehicle battery box of this utility model isolates multiple sets of vehicle batteries 4 by setting battery pack separators 13 and limiting plates 16 inside the box armor 11, and provides deformation space between all vehicle batteries 4. At the same time, battery support ladders 14 are set on both sides of the battery pack separators 13 to support the vehicle batteries 4, so that the vehicle batteries 4 are in a suspended state. When the box mechanism 1 and / or sealing mechanism 2 are impacted or punctured, the gaps between the vehicle batteries 4 will form a buffer, thereby reducing the impact and puncture forces on the vehicle batteries 4, and thus improving the protection capability of the vehicle batteries 4.
[0049] Meanwhile, each set of car batteries 4 can be individually fixed and installed using the fixing clamp 3, making it easier to repair and replace damaged car batteries 4 during maintenance.
[0050] This invention provides a buffer cavity 131 inside the battery pack separator 13, which allows the battery pack separator 13 to deform inward when subjected to external impact force, thereby reducing the impact force and reducing the displacement distance of the car battery 4 at the impact end, reducing the pressure on the subsequent car battery 4, and achieving the effect of further improving safety.
[0051] This invention improves the heat dissipation efficiency of the car battery 4 by providing a ventilation groove 132 on the outer surface of the battery pack separator 13, and the ventilation groove 132 communicating with the buffer cavity 131, and providing an airflow circulation groove 17 at the bottom of the housing armor 11. External airflow can enter the interior of the housing armor 11 through the airflow circulation groove 17 and the ventilation groove 132.
[0052] At the same time, the ventilation slot 132 makes the battery pack separator 13 more prone to deformation, so as to prevent the battery support platform 14 from being damaged by the hard compression of the battery pack separator 13 after being impacted.
[0053] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.
[0054] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A new energy automobile battery box, characterized in that, It includes a housing mechanism (1), and a sealing mechanism (2) is provided at the opening of the housing mechanism (1); The housing mechanism (1) includes a housing armor (11), inside which multiple sets of car batteries (4) are placed. Several battery pack separators (13) are arranged in parallel inside the housing armor (11). A battery support platform (14) is provided on the opposite side of two adjacent battery pack separators (13). Several limiting plates (16) are equidistantly arranged between two adjacent battery pack separators (13). The battery pack separators (13) and the limiting plates (16) cooperate to separate and limit each set of car batteries (4). The bottom of the car battery (4) is placed on the top of the battery support platform (14).
2. The new energy vehicle battery box according to claim 1, characterized in that: All of the battery pack separators (13) have a buffer cavity (131) inside.
3. The new energy vehicle battery box according to claim 2, characterized in that: The outer surface of the battery pack separator (13) is provided with a ventilation groove (132), which is in communication with the buffer cavity (131).
4. The new energy vehicle battery box according to claim 3, characterized in that: The bottom of the box armor (11) is provided with an airflow circulation groove (17), which is in communication with the interior of the buffer cavity (131).
5. The new energy vehicle battery box according to claim 1, characterized in that: All of the battery pack separators (13) are provided with a nut fixing post (15) on the top. The nut fixing post (15) is equipped with a fixing clamp (3) that matches the number of car batteries (4). The fixing clamp (3) and the nut fixing post (15) work together to fix and constrain the car batteries (4).
6. The new energy vehicle battery box according to claim 5, characterized in that: The fixing clamp (3) is bow-shaped, and the two ends of the fixing clamp (3) span the gap between the two adjacent battery pack separators (13). The two ends of the fixing clamp (3) are penetrated by the nut fixing post (15) and connected by bolts. The interior of the battery pack separator (13) overlaps with the outer surface of the vehicle battery (4).
7. The new energy vehicle battery box according to claim 1, characterized in that: The bottom of the outer surface of the box armor (11) is provided with a mounting wing plate (12), and the mounting wing plate (12) has several through holes.
8. The new energy vehicle battery box according to claim 1, characterized in that: The sealing mechanism (2) includes a sealing cover (21), the top of which is provided with a rib groove (22), and a gap is left between the inner top of the sealing cover (21) and the top of the car battery (4).
9. The new energy vehicle battery box according to claim 8, characterized in that: The rib groove (22) protrudes towards the top of the sealing cover (21).
10. The new energy vehicle battery box according to any one of claims 1-9, characterized in that: A ramp is provided at the connection between the battery support platform (14) and the battery pack separator (13), and the ramp extends upward along the edge of the battery pack separator (13).