New energy automobile power battery integrated ultra-thin explosion-proof shell

Abstract

This application discloses an integrated ultra-thin explosion-proof housing for a new energy vehicle power battery, belonging to the field of new energy vehicle technology. It mainly includes: an assembly plate, a protective component mounted on the assembly plate, the protective component including an explosion-proof outer shell mounted on the assembly plate, multiple crossbeams installed inside the explosion-proof outer shell, and a support component installed inside the explosion-proof outer shell. The integrated ultra-thin explosion-proof housing for a new energy vehicle power battery of this application, through the arrangement of the assembly plate, protective component, and support component, achieves horizontal limitation by the support component through the fit between the bracket and support frame and the crossbeams, and provides vertical auxiliary support for the crossbeams through positioning rods and support boxes. This effectively solves the problem of insufficient impact resistance caused by traditional housings relying solely on bolt fixation, improves the structural stability of the explosion-proof housing, and reduces the occurrence of battery damage due to collapse and misalignment caused by external force compression.

Description

Technical Field

[0001] This application relates to the field of new energy vehicle technology, specifically to an integrated ultra-thin explosion-proof housing for new energy vehicle power batteries. Background Technology

[0002] As one of the core components of new energy vehicles, the performance and safety of power batteries are directly related to the overall vehicle performance and the safety of users' lives and property. Their charging and discharging efficiency, range and other performance indicators directly affect the vehicle's driving range and power output. Furthermore, the safety characteristics of batteries, such as explosion-proof, fire-proof and structural stability under abnormal conditions, are key to reducing serious safety accidents such as vehicle spontaneous combustion and explosion caused by battery failure, and are an important foundation for ensuring the safety of users.

[0003] During the operation of new energy vehicles, the power battery casing needs to withstand various external forces, such as bumps and collisions during vehicle operation. Currently, most existing power battery casings are only fixed to the mounting plate with bolts. Due to the lack of auxiliary support and reinforcement structures between the explosion-proof casing and the mounting plate, the explosion-proof casing is prone to collapse or misalignment when subjected to external pressure. Such collapse or misalignment can easily squeeze the battery and affect its normal operation, and may also cause damage to the internal structure of the battery, or even lead to safety accidents. Therefore, it is necessary to provide an integrated ultra-thin explosion-proof casing for new energy vehicle power batteries to solve the above problems.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0005] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide an integrated ultra-thin explosion-proof shell for power batteries of new energy vehicles, which solves the problem that some power battery shells rely on bolts for fixing, lack auxiliary support, and are prone to collapse or misalignment when subjected to external pressure, resulting in battery damage.

[0006] The technical solution adopted by this application to solve its technical problem is: an integrated ultra-thin explosion-proof housing for new energy vehicle power batteries, comprising:

[0007] Assembly plate;

[0008] A protective assembly is mounted on the assembly plate, the protective assembly including an explosion-proof housing mounted on the assembly plate, and a plurality of crossbeams are installed inside the explosion-proof housing;

[0009] A support assembly, installed within the explosion-proof housing, includes multiple brackets spaced apart on the assembly plate. Each bracket has a support frame at its upper end that mates with the crossbeam. The crossbeam has multiple positioning slots spaced apart. Each support frame has a positioning plate adapted to the positioning slot. Multiple positioning rods are spaced apart on both sides of the assembly plate. The crossbeam has positioning holes on both sides that mate with the positioning rods. Each positioning rod has a support box at its upper end that mates with the crossbeam.

[0010] Furthermore, the positioning rod is aligned with the lateral position of the bracket.

[0011] Furthermore, the assembly plate is made of high-strength aluminum alloy.

[0012] Furthermore, the explosion-proof housing is made of explosion-proof steel.

[0013] Furthermore, the positioning groove is rectangular in shape, providing an insertable guide structure for the positioning plate.

[0014] Furthermore, the crossbeam is provided with symmetrical sliding grooves on both sides, and at least two sets of springs are installed in the sliding grooves. One end of each spring is equipped with a sliding plate that slides within the sliding groove. A limiting arc block that can pass through the sliding groove and extend to the outside of the crossbeam is installed on the sliding plate. The support box is provided with a limiting arc groove that matches the limiting arc block.

[0015] Furthermore, the spring causes the slide plate to maintain its tendency to move towards the limiting arc groove.

[0016] The beneficial effects of this application are as follows: The integrated ultra-thin explosion-proof housing for new energy vehicle power batteries provided by this application, through the setting of assembly plates, protective components and support components, the support components achieve horizontal limitation by fitting the crossbeam with the bracket and support frame, and provide vertical auxiliary support for the crossbeam through the positioning rod and support box, effectively solves the problem of insufficient impact resistance caused by traditional housings that are only fixed by bolts, improves the structural stability of the explosion-proof housing, and reduces the occurrence of battery damage caused by collapse and misalignment due to external force extrusion.

[0017] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1This is a three-dimensional structural schematic diagram of an integrated ultra-thin explosion-proof housing for a new energy vehicle power battery according to an embodiment of this application;

[0020] Figure 2 This is a first exploded three-dimensional structural diagram of the integrated ultra-thin explosion-proof housing for a new energy vehicle power battery according to an embodiment of this application;

[0021] Figure 3 This is a second exploded three-dimensional structural diagram of the integrated ultra-thin explosion-proof housing for a new energy vehicle power battery according to an embodiment of this application;

[0022] Figure 4 This is a three-dimensional structural diagram of the assembly plate and support assembly according to an embodiment of this application;

[0023] Figure 5 This is a three-dimensional structural diagram of the protective component and the support component according to an embodiment of this application;

[0024] Figure 6 According to the embodiments of this application Figure 5 Enlarged diagram of point A in the middle.

[0025] The following are the labeling elements in the figure:

[0026] 1. Battery assembly components; 11. Assembly plate; 12. Power battery pack; 2. Protective components; 21. Explosion-proof shell; 22. Crossbeam; 23. Positioning groove; 24. Positioning hole; 25. Slide groove; 26. Spring; 27. Slide plate; 28. Limiting arc block; 3. Support components; 31. Bracket; 32. Support frame; 33. Positioning plate; 34. Positioning rod; 35. Support box; 36. Limiting arc groove. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0029] like Figures 1-3As shown, this application provides an integrated ultra-thin explosion-proof housing for a new energy vehicle power battery, including a battery assembly component 1. The battery assembly component 1 serves as a carrier for the new energy vehicle power battery and provides power to the new energy vehicle. The battery assembly component 1 includes an assembly plate 11, which is made of high-strength aluminum alloy and serves as a basic load-bearing platform for multiple batteries. It is fixedly installed to the vehicle chassis through bolt holes. Multiple power battery packs 12 are installed at intervals on the assembly plate 11. The power battery packs 12 store and output electrical energy to provide power to the vehicle drive motor. At the same time, the assembly plate 11 provides an installation positioning reference for the power battery packs 12, and copper conductive sheets are embedded inside to assist in the circuit connection of the power battery packs 12.

[0030] like Figure 1 , Figure 3 and Figure 5 As shown, a protective component 2 is installed on the assembly plate 11. This protective component 2 can buffer external forces, reduce the pressure on the power battery pack 12, and ensure the safety of the power battery pack 12. The protective component 2 includes an explosion-proof shell 21 that is bolted to the assembly plate 11. The explosion-proof shell 21 is made of explosion-proof steel and has a flame-retardant coating (not shown in the figure) sprayed on the inner wall, such as ceramicized silicone rubber. At the same time, the explosion-proof shell 21 adopts an integrated stamping process to reduce welding seams, improve structural strength, and reduce weight. Multiple crossbeams 22 are fixed at intervals on the top surface inside the explosion-proof shell 21. When the crossbeams 22 are subjected to external pressure, the rigid structure of the crossbeams 22 can distribute the pressure to the entire top surface of the explosion-proof shell 21, reducing the occurrence of local collapse problems.

[0031] like Figures 2-6 As shown, a support assembly 3 is installed inside the explosion-proof housing 21. The support assembly 3 includes multiple brackets 31 fixed at intervals on the assembly plate 11. Each bracket 31 has a support frame 32 that fits with the crossbeam 22 fixed at its upper end. The bracket 31 provides vertical support to the support frame 32 above, ensuring the overall stability of the support assembly 3. Its height is designed to match the thickness of the power battery pack 12, avoiding spatial interference with the power battery pack 12. The shape of the support frame 32 matches the bottom contour of the crossbeam 22, directly bearing the pressure transmitted by the crossbeam 22. The load is distributed to the assembly plate 11 through the brackets 31, improving the bending resistance of the crossbeam 22 and reducing the occurrence of local collapse of the top surface of the explosion-proof housing 21.

[0032] Multiple positioning slots 23 are provided at intervals on the crossbeam 22, and positioning plates 33 adapted to the positioning slots 23 are fixed on the support frame 32. The positioning slots 23 are rectangular and provide an insertable guide structure for the positioning plates 33, which restricts the displacement of the crossbeam 22 in the horizontal direction (such as transverse and longitudinal directions), ensures that the relative position of the crossbeam 22 and the support frame 32 is fixed, and reduces the misalignment under the action of external forces.

[0033] Multiple positioning rods 34, which are aligned with the lateral position of the brackets 31, are fixed at intervals on both sides of the assembly plate 11. The multiple sets of brackets 31 and multiple sets of positioning rods 34 are staggered with the power battery pack 12. The positioning rods 34 extend vertically upwards, forming a symmetrical support layout with the brackets 31, providing additional vertical support points for the crossbeam 22, and improving the torsional stiffness of the overall structure. Positioning holes 24, which are adapted to the positioning rods 34, are provided on both sides of the crossbeam 22. The positioning rods 34 are inserted into the positioning holes 24 to assist in positioning the installation position of the explosion-proof housing 21, thereby improving the assembly accuracy of the explosion-proof housing 21 and the assembly plate 11.

[0034] A support box 35 that fits with the crossbeam 22 is fixed at the upper end of the positioning rod 34. The support box 35 is used to bear the pressure transmitted from both sides of the crossbeam 22 and distribute the load to the assembly plate 11 through the positioning rod 34, further reducing the occurrence of local collapse of the top surface of the explosion-proof shell 21.

[0035] Symmetrical grooves 25 are provided on both sides of the crossbeam 22. At least two sets of springs 26 are fixed in the grooves 25. A sliding plate 27 is fixed at one end of the spring 26 and slides within the groove 25. A limiting arc block 28 is fixed on the sliding plate 27, which can pass through the groove 25 and extend to the outside of the crossbeam 22. The groove 25 is U-shaped, providing installation space and sliding track for the spring 26 and the sliding plate 27. Its U-shaped groove structure restricts the lateral displacement of the sliding plate 27 and ensures the accurate movement trajectory of the limiting arc block 28. A limiting arc groove 36 adapted to the limiting arc block 28 is provided in the support box 35. The spring 26 keeps the sliding plate 27 moving towards the limiting arc groove 36. The curvature of the arc surface of the limiting arc groove 36 is consistent with that of the limiting arc block 28. When the limiting arc block 28 slides with the sliding plate 27 and is embedded in the limiting arc groove 36, the two form a surface contact positioning structure to assist in the assembly of the crossbeam 22.

[0036] Working principle: When a new energy vehicle is subjected to external forces such as bumps and collisions during driving, the external force will be transmitted to the explosion-proof housing 21. At this time, the crossbeam 22 inside the explosion-proof housing 21 will be subjected to pressure first. The rigid structure of the crossbeam 22 will distribute the pressure to the top surface of the entire explosion-proof housing 21, reducing the risk of collapse caused by excessive local pressure.

[0037] In addition, the bracket 31 and positioning rod 34 in the support assembly 3 also play a supporting role. The support frame 32 on the bracket 31 cooperates with the positioning groove 23 on the crossbeam 22 through the positioning plate 33 to position and support the crossbeam 22 in the horizontal direction. The positioning rod 34 is inserted into the positioning hole 24 on the crossbeam 22 and supports both sides of the crossbeam 22 through the support box 35, which further enhances the connection strength and stability between the explosion-proof shell 21 and the assembly plate 11, thereby reducing the risk of the power battery pack 12 being damaged by compression and ensuring the normal operation of the power battery pack 12.

[0038] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An integrated ultra-thin explosion-proof housing for power batteries in new energy vehicles, characterized in that: include: Assembly plate (11); The protective assembly (2) is mounted on the assembly plate (11). The protective assembly (2) includes an explosion-proof housing (21) mounted on the assembly plate (11). Multiple crossbeams (22) are installed inside the explosion-proof housing (21). A support assembly (3) is installed inside the explosion-proof housing (21). The support assembly (3) includes multiple brackets (31) spaced apart on the assembly plate (11). The upper end of the brackets (31) is equipped with a support frame (32) that fits into the crossbeam (22). Multiple positioning grooves (23) are spaced apart on the crossbeam (22). Positioning plates (33) that fit into the positioning grooves (23) are installed on the support frame (32). Multiple positioning rods (34) are spaced apart on both sides of the assembly plate (11). Positioning holes (24) that fit into the positioning rods (34) are provided on both sides of the crossbeam (22). A support box (35) that fits into the crossbeam (22) is installed at the upper end of the positioning rods (34).

2. The integrated ultra-thin explosion-proof housing for new energy vehicle power batteries according to claim 1, characterized in that: The positioning rod (34) is aligned with the lateral position of the bracket (31).

3. The integrated ultra-thin explosion-proof housing for new energy vehicle power batteries according to claim 1, characterized in that: The assembly plate (11) is made of high-strength aluminum alloy.

4. The integrated ultra-thin explosion-proof housing for new energy vehicle power batteries according to claim 1, characterized in that: The explosion-proof housing (21) is made of explosion-proof steel.

5. The integrated ultra-thin explosion-proof housing for new energy vehicle power batteries according to claim 1, characterized in that: The positioning groove (23) is rectangular and provides an insertable guide structure for the positioning plate (33).

6. The integrated ultra-thin explosion-proof housing for new energy vehicle power batteries according to claim 1, characterized in that: The crossbeam (22) is provided with symmetrical grooves (25) on both sides. At least two sets of springs (26) are installed in the grooves (25). One end of the spring (26) is provided with a sliding plate (27) that slides in the groove (25). A limiting arc block (28) that can pass through the groove (25) and extend to the outside of the crossbeam (22) is installed on the sliding plate (27). The support box (35) is provided with a limiting arc groove (36) that is adapted to the limiting arc block (28).

7. The integrated ultra-thin explosion-proof housing for new energy vehicle power batteries according to claim 6, characterized in that: The spring (26) causes the slide plate (27) to maintain a tendency to move toward the limiting arc groove (36).

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