Corner reinforcing mechanism for battery pack box body
By setting a high-strength steel substrate layer, an aluminum alloy honeycomb layer, and a hot-dip galvanized anti-corrosion layer at the corners of the battery pack housing, combined with aluminum alloy protective plates and buffer pads, the problem of easy damage at the corners of the battery pack housing is solved, and the structure is strengthened and impact-resistant.
Patent Information
- Application Number
- CN202520514135.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-24
AI Technical Summary
The corners of the battery pack casing are prone to stress concentration when subjected to impacts and collisions, which can lead to cracks and affect the service life.
The corner reinforcement mechanism consists of a high-strength steel base layer, an aluminum alloy honeycomb layer, a hot-dip galvanized anti-corrosion layer, and an aluminum alloy protective plate. Combined with threaded holes, positioning grooves, and bolt designs, it enhances the strength of the corner structure and sets up a buffer pad to reduce impact damage.
The strength and impact resistance of the battery pack casing corners have been improved, extending service life and reducing maintenance costs.
Smart Images

Figure CN223977993U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of new energy vehicle technology, and more specifically, it relates to a corner reinforcement mechanism for battery pack housing. Background Technology
[0002] The battery pack housing of a new energy vehicle is a shell structure used to house and protect the battery cells in an electric vehicle or other new energy vehicle. The design of the battery pack housing not only protects the battery, but also ensures the safety, stability and efficiency of the battery during operation. The battery pack housing is usually made of metal or composite materials, which have high strength and durability.
[0003] When the battery pack housing is subjected to impacts and collisions, stress concentration is likely to occur at its corners. With prolonged vehicle use, continuous vibration and stress cycles can easily cause cracks in the corners due to fatigue and other factors, affecting the service life of the battery pack.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a corner reinforcement mechanism for the battery pack housing, in order to achieve a more practical purpose. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a corner reinforcement mechanism for a battery pack housing, which is achieved by the following specific technical means:
[0006] A corner reinforcement mechanism for a battery pack housing includes a corner body, which comprises a base material layer, a reinforcement layer, a honeycomb layer, and an anti-corrosion layer. The reinforcement layer is disposed on the surface of the base material layer, the honeycomb layer is disposed on the surface of the reinforcement layer, and the anti-corrosion layer is disposed on the surface of the honeycomb layer. A pair of positioning grooves are provided on one side of the corner body, and a plurality of threaded holes are provided on the surface of the corner body. A protective plate is detachably installed on one side of the corner body, and a buffer pad is installed on one side of the protective plate. A positioning block is installed on the other side of the protective plate at a position matching the positioning groove, and the size of the positioning block matches the size of the positioning groove. A bolt is installed on the surface of the protective plate at a position matching each threaded hole, and the bolt matches the threaded hole.
[0007] Furthermore, both the substrate layer and the reinforcing layer are made of high-strength steel.
[0008] Furthermore, the honeycomb layer is made of aluminum alloy.
[0009] Furthermore, the anti-corrosion layer is made of hot-dip galvanized material.
[0010] Furthermore, the protective plate is made of aluminum alloy.
[0011] Furthermore, the cushioning pad is made of EVA foam.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] The corner reinforcement mechanism for battery pack housing in this utility model, through the coordinated use of a corner body, a base material layer, a reinforcing layer, a honeycomb layer, an anti-corrosion layer, a positioning groove, a threaded hole, a protective plate, a buffer pad, a positioning block, and bolts, facilitates the improvement of the strength of the corner of the battery pack housing by setting up the reinforcing layer, honeycomb layer, and anti-corrosion layer. The protective plate and buffer pad reduce the impact and collision damage to the corner of the battery pack housing, and can be replaced when the protective plate and buffer pad are damaged, thereby improving the service life of the battery pack housing and reducing maintenance costs. Attached Figure Description
[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention.
[0015] Figure 2 This is a three-dimensional schematic diagram of the internal structure of the corner body of this utility model.
[0016] Figure 3 This is a three-dimensional schematic diagram of the protective plate structure of this utility model.
[0017] Figure 4 This is a top sectional view of the internal layer structure of the corner body of this utility model.
[0018] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0019] 1. Corner body; 2. Substrate layer; 3. Reinforcing layer; 4. Honeycomb layer; 5. Anti-corrosion layer; 6. Positioning groove; 7. Threaded hole; 8. Protective plate; 9. Buffer pad; 10. Positioning block; 11. Bolt. Detailed Implementation
[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0021] Example:
[0022] As attached Figure 1 To be continued Figure 4 As shown:
[0023] This utility model provides a corner reinforcement mechanism for a battery pack housing, including a corner body 1. The corner body 1 includes a base material layer 2, a reinforcement layer 3, a honeycomb layer 4, and an anti-corrosion layer 5. The reinforcement layer 3 is disposed on the surface of the base material layer 2, the honeycomb layer 4 is disposed on the surface of the reinforcement layer 3, and the anti-corrosion layer 5 is disposed on the surface of the honeycomb layer 4. A pair of positioning grooves 6 are provided on one side of the corner body 1, and a plurality of threaded holes 7 are provided on the surface of the corner body 1. A protective plate 8 is detachably installed on one side of the corner body 1, and a buffer pad 9 is installed on one side of the protective plate 8. A positioning block 10 is installed on the other side of the protective plate 8 at a position that matches the positioning groove 6, and the size of the positioning block 10 matches the size of the positioning groove 6. A bolt 11 is installed on the surface of the protective plate 8 at a position that matches each threaded hole 7, and the bolt 11 matches the threaded hole 7.
[0024] The base material 2 and the reinforcing layer 3 are both made of high-strength steel. High-strength steel has excellent strength and durability, which can effectively enhance the strength of the corner structure of the battery pack box.
[0025] Among them, the honeycomb layer 4 is made of aluminum alloy. The honeycomb structure can disperse the external pressure or impact force and distribute these forces evenly to the entire material surface, thereby avoiding stress concentration damage to the corners of the battery pack box.
[0026] Among them, the anti-corrosion layer 5 is made of hot-dip galvanized material. The galvanized layer can provide good corrosion resistance and reduce the corrosion caused by the corners of the battery pack box coming into contact with moisture and oxygen in the environment.
[0027] The protective plate 8 is made of aluminum alloy. The protective plate 8 can protect the corner body 1 during the use of the battery pack box and reduce the damage to the corner body 1 caused by impact collision.
[0028] Among them, the buffer pad 9 is made of EVA foam. EVA foam has excellent pressure resistance, elasticity and cushioning performance, which can effectively reduce the damage of mechanical impact to the corners of the box. It is also lightweight and durable.
[0029] The working principle of this embodiment is as follows: During use, the corner reinforcement mechanism for the battery pack housing reduces the damage to the corner body 1 caused by impact collisions by the protective plate 8 and the buffer pad 9. When the protective plate 8 and the buffer pad 9 are damaged, the operator can remove and replace the protective plate 8. When replacing the new protective plate 8, the operator can insert the positioning block 10 on one side of the protective plate 8 into the positioning groove 6 and fix the protective plate 8 with bolts 11. In addition, the reinforcing layer 3 provided inside the corner body 1 can increase the strength of the corner body 1. The honeycomb structure of the honeycomb layer 4 can disperse the external pressure or impact force and distribute these forces evenly to the entire material surface, thereby avoiding stress concentration damage to the corner of the battery pack housing. The anti-corrosion layer 5 can provide good corrosion resistance and reduce the corrosion caused by the corner of the battery pack housing coming into contact with moisture and oxygen in the environment.
[0030] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A corner reinforcement mechanism for a battery pack enclosure comprising a corner body (1) characterised in that: The corner body (1) comprises a substrate layer (2), a reinforcing layer (3), a honeycomb layer (4) and an anticorrosion layer (5), the reinforcing layer (3) is arranged on the surface of the substrate layer (2), the honeycomb layer (4) is arranged on the surface of the reinforcing layer (3), the anticorrosion layer (5) is arranged on the surface of the honeycomb layer (4), one side of the corner body (1) is provided with a pair of positioning grooves (6), the surface of the corner body (1) is provided with a plurality of threaded holes (7), one side of the corner body (1) is detachably provided with a protective plate (8), one side of the protective plate (8) is provided with a buffer pad (9), the other side of the protective plate (8) is provided with a positioning block (10) at the position matched with the positioning groove (6), and the size of the positioning block (10) is matched with the size of the positioning groove (6), the surface of the protective plate (8) is provided with a bolt (11) at the position matched with each threaded hole (7), and the bolt (11) is matched with the threaded hole (7).
2. The corner reinforcement mechanism for a battery pack enclosure of claim 1, wherein: The material of the substrate layer (2) and the reinforcing layer (3) is high-strength steel.
3. The corner reinforcement mechanism for a battery pack enclosure of claim 1, wherein: The material of the honeycomb layer (4) is aluminum alloy.
4. The corner reinforcement mechanism for a battery pack enclosure of claim 1, wherein: The material of the anticorrosion layer (5) is hot-dip galvanizing.
5. The corner reinforcement mechanism for a battery pack enclosure of claim 1, wherein: The material of the protective plate (8) is aluminum alloy.
6. The corner reinforcement mechanism for a battery pack enclosure of claim 1, wherein: The material of the buffer pad (9) is EVA foam.