High-vibration-resistance AGM battery shell structure

Abstract

A high-vibration-resistance AGM battery shell structure comprises a battery groove body, the battery groove body is of a cuboid structure with an opening in the upper portion, a groove body inner cavity is composed of a bottom plate and side plates erected on the bottom plate, and the side plates comprise the front side plate and the rear side plate which are arranged in the length direction and the left side plate and the right side plate which are arranged in the width direction; an inner cavity of the tank body is divided into a plurality of unit cells which are the same in size and are used for assembling a plate group of the storage battery by partition walls; reinforcing frames are arranged on the peripheries of the outer side faces of the front side plate, the rear side plate, the left side plate and the right side plate, and honeycomb grids fully covered in the reinforcing frames form a honeycomb structure. Each honeycomb lattice comprises a hexagonal pyramid frustum structure, the lattice bottom is closed, and the lattice opening is open. By designing the battery jar body with the honeycomb structure, low-frequency vibration energy in the running process of a vehicle can be effectively absorbed, various stresses under the low-frequency vibration condition can be dispersed, and resonance can be reduced, so that the vibration resistance of the storage battery can be improved, and a pole group in the storage battery can be effectively prevented from being damaged by vibration.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve-regulated lead-acid batteries, and particularly relates to a high-vibration-resistant AGM battery case structure. Background Art

[0002] According to the requirements of national regulations, commercial vehicle models are gradually switched to the "National VI" standard. To meet this requirement, domestic vehicle manufacturers need to adopt a rear-mounted or stacked design for the battery layout. However, when the battery is installed in a rear-mounted or stacked manner, during the operation of the vehicle, compared with the original battery installation position, the vibration acceleration will increase significantly. For heavy trucks, the tail working conditions are more severe, which in turn leads to failure modes such as damage to the electrode group and deformation of the battery case, reducing the service life of the battery. Therefore, how to improve the vibration resistance of the battery has become a technical challenge for current battery manufacturing enterprises. Therefore, there is an urgent need to develop a high-vibration-resistant AGM battery case structure. Summary of the Invention

[0003] The purpose of the utility model is to provide a high-vibration-resistant AGM battery case structure to overcome the above deficiencies. The battery case wall of this structure adopts a honeycomb structure design, which has the advantages of light weight, high specific strength, and excellent energy absorption capacity. It can effectively absorb the low-frequency vibration energy during vehicle driving, disperse various stresses under low-frequency vibration conditions, reduce the occurrence of resonance, effectively protect the electrode group in the battery from vibration damage, and improve the service life of the battery.

[0004] The technical solution of the utility model is: a high-vibration-resistant AGM battery case structure, including a battery case. The battery case is a cuboid structure with an open upper part, and the inner cavity of the case is composed of a bottom plate and side plates standing on the bottom plate. The side plates include a front side plate and a rear side plate arranged along the length direction, and a left side plate and a right side plate arranged along the width direction; the inner cavity of the case is divided into a plurality of single cells of the same size for assembling the electrode group of the battery by partition walls; there are reinforcing frames around the outer sides of the front side plate, the rear side plate, the left side plate, and the right side plate, and the honeycomb grids covering the entire area inside the reinforcing frames form a honeycomb structure; the honeycomb grids include a hexagonal prism structure. The small end face of the hexagonal prism structure is the grid bottom, and the large end face of the hexagonal prism structure is the grid opening. The grid bottom is closed, and the grid opening is open.

[0005] The included angle between the edge of the hexagonal prism structure and the height direction of the hexagonal prism structure is 12-15°, which is convenient for demolding.

[0006] The grid bottom is a non-planar structure, which is composed of three identical rhombuses spliced together.

[0007] The cross-section of the hexagonal prism structure is a hexagonal rhombus, the obtuse angle of the hexagonal rhombus is 107°-112°, and the acute angle of the hexagonal rhombus is 68°-72°.

[0008] The wall thickness of the honeycomb lattice is 1 - 2 mm.

[0009] The inner cavity of the groove is divided into six single cells with the same shape and size distributed in a "2×3 structure" by two uniformly distributed longitudinal partition walls and a transverse partition wall.

[0010] The reinforcing frame includes reinforcing ribs designed in the horizontal and vertical directions.

[0011] The bottom plate, front side plate, left side plate, rear side plate, and right side plate are all made of high-rigidity polypropylene material.

[0012] The simulation analysis results show that the battery generally has low-frequency vibration in the real vehicle vibration environment. For the high-vibration-resistant AGM battery shell structure of the present invention, by designing a honeycomb-shaped battery groove body, the low-frequency vibration energy during vehicle driving can be effectively absorbed, various stresses under low-frequency vibration conditions can be dispersed, the occurrence of resonance can be reduced, so as to improve the vibration resistance performance of the battery and effectively protect the inner electrode group of the battery from vibration damage. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the present invention;

[0014] Figure 2 is Figure 1 a partial structural diagram of Detailed Embodiment

[0015] Figure 1 , 2 In

[0016]

[0017] , a high-vibration-resistant AGM battery shell structure, the battery groove body of this structure is a cuboid structure with an open upper part, and is composed of a bottom plate 1, a front side plate 2 and a rear side plate 3 in the length direction, and a left side plate 4 and a right side plate 5 in the width direction. The bottom plate, front side plate, left side plate, rear side plate, and right side plate are all made of high-rigidity polypropylene material. The inner sides of the front side plate, rear side plate, left side plate, and right side plate are smooth and perpendicular to the bottom plate, enclosing a cavity, which is also called the inner cavity of the groove. The inner cavity of the groove is divided into six single cells 8 with the same shape and size distributed in a "2×3 structure" by two uniformly distributed longitudinal partition walls 6 and a transverse partition wall 7 for assembling the electrode group of the battery.

[0017] The four peripheral frames on the outer sides of the front side plate, rear side plate, left side plate, and right side plate are respectively designed with reinforcing ribs 9 in the horizontal and vertical directions. Inside the reinforcing ribs, a honeycomb lattice covering the whole is designed to form a honeycomb structure 10. The honeycomb lattice includes a hexagonal prism frustum structure 11. The small end face of the hexagonal prism frustum structure 11 is the lattice bottom, and the large end face is the lattice opening. The lattice bottom is closed and the lattice opening is open.

[0018] The hexagonal frustum structure 11 has a flat hexagonal opening at one end and a closed hexagonal rhombus bottom at the other end, which is composed of three identical rhombuses to form a non-planar structure. The obtuse angle of the hexagonal rhombus at the lattice bottom of the hexagonal frustum structure 11 is 107° - 112°, and all the acute angles are 68° - 72°. For easy demolding, each honeycomb lattice has an elevation angle of 12 - 15° from the bottom of the inner chamber to the opening, and the "wall thickness of the honeycomb lattice is 1 - 2 mm" 12.

Claims

1. A high-vibration-resistant AGM battery case structure, characterized in that: It includes a battery cell body, which is a cuboid structure with an open top, and has a cavity inside the cell body composed of a bottom plate (1) and side plates standing on the bottom plate. The side plates include a front side plate (2) and a rear side plate (3) arranged along the length direction, and a left side plate (4) and a right side plate (5) arranged along the width direction. The cavity inside the cell body is partitioned by partition walls into multiple single cells (8) of the same size for assembling battery plate groups of storage batteries. There are reinforcing frames around the outer sides of the front side plate, rear side plate, left side plate, and right side plate. The honeycomb grids that fully cover the inside of the reinforcing frames form a honeycomb structure (10). The honeycomb grids include hexagonal prism frustum structures (11). The small end face of the hexagonal prism frustum structure (11) is the grid bottom, and the large end face of the hexagonal prism frustum structure (11) is the grid opening. The grid bottom is closed, and the grid opening is open.

2. The high-vibration-resistant AGM battery housing structure according to claim 1, characterized in that: The included angle between the edge of the hexagonal prism frustum structure (11) and the height direction of the hexagonal prism frustum structure is 12 - 15°.

3. The high-vibration-resistant AGM battery housing structure according to claim 1, wherein: The grid bottom is a non-planar structure, which is composed of three identical rhombuses spliced together.

4. The high-vibration-resistant AGM battery housing structure according to claim 1, characterized in that: The cross-section of the hexagonal prism frustum structure (11) is a hexagonal rhombus. The obtuse angle of the hexagonal rhombus is 107° - 112°, and the acute angle of the hexagonal rhombus is 68° - 72°.

5. The high-vibration-resistant AGM battery housing structure according to claim 1, characterized in that: The wall thickness of the honeycomb grid (12) is 1 - 2 mm.

6. The high-vibration-resistant AGM battery housing structure according to claim 1, characterized in that: The cavity inside the cell body is divided into six single cells (8) of the same shape and size distributed in a "2×3 structure" by two evenly distributed longitudinal partition walls (6) and one transverse partition wall (7).

7. The high-vibration-resistant AGM battery case structure according to claim 1, wherein: The reinforcing frame includes reinforcing ribs (9) designed in the horizontal and vertical directions.

8. The high-vibration-resistant AGM battery housing structure according to claim 1, characterized in that: The bottom plate, front side plate, left side plate, rear side plate, and right side plate are all made of high-rigidity polypropylene material.

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