A corrugated radial reinforcement structure for an elongated battery box shell

Abstract

The utility model discloses a corrugated radial reinforcement structure of an elongated battery box shell, comprising an outer shell body, at least one convex groove 2 is arranged on the surface of the outer shell body, the circumferential outer shell body surface of the convex groove 2 is arranged as protrusion 2, the surface of the outer shell body takes the convex groove 2 as the center point and is evenly distributed with protrusion 1 in the direction of both sides of the convex groove 2, and the combination of protrusion 2 and protrusion 1 on both sides of the convex groove 2 are all in the shape of water ripple radiation; on the basis of the same stamping rib area, the natural modal frequency is further improved; specifically: a circular or elliptical protrusion is arranged at the center of the box shell; a plurality of crescent-shaped protrusions are arranged from the center to both ends in the length direction of the box body according to the size; a sun "circle" and a plurality of moon "bends" form a water ripple radial structure; on the basis of the same protrusion area, the vibration resistance is improved compared with the traditional reinforcement structure.

Description

Technical Field

[0001] The utility model relates to the technical field of long battery box shells, in particular to a corrugated radial reinforcement structure of a long battery box shell. Background Art

[0002] With the development of the new energy vehicle industry, the power demand of battery packs is on the rise, while the increase in the energy density of battery cells is slowing down. Therefore, large-capacity battery packs are bound to increase in weight and volume, and also put forward higher requirements on the strength of the battery pack shell, especially the lower shell.

[0003] In the prior art, Figure 1 Common long battery box shell reinforcement structure: a long stamping rib is punched out along the length direction of the box, and several short stamping ribs are punched out along the width direction of the box. The overall appearance is a "cross" shaped structure in the box shell pattern.

[0004] Therefore, it is necessary to propose a corrugated radial reinforcement structure for the elongated battery box shell. Utility Model Content

[0005] In view of the problems existing in the above-mentioned prior art, the utility model provides a corrugated radial reinforcement structure of a long battery box shell, so as to further improve the vibration resistance of the shell. On the basis of the same stamping rib area, the natural modal frequency is further improved.

[0006] A corrugated radial reinforcement structure of an elongated battery box shell comprises an outer shell body, wherein at least one convex groove 2 is arranged on the surface of the outer shell body, and the outer shell body surface circumferentially of the convex groove 2 is arranged with protrusion 2, and the surface of the outer shell body is uniformly distributed with protrusion 1 in the direction of both sides of the convex groove 2 with the convex groove 2 as the center point, and the combination of protrusion 2 and protrusion 1 on both sides of the convex groove 2 is in the shape of water ripples.

[0007] Specifically: the surface of the battery box outer shell is provided with convex groove two, and convex groove two is a concave structure, so that the circumferential outer shell surface of convex groove two is formed into convex protrusion two, and convex protrusion one is located at the center of convex groove two and radiates to both sides of convex groove two to form a water corrugated structure, which is arranged on the outer shell surface on both sides of convex groove two, so as to further improve the vibration resistance of the outer shell.

[0008] In at least one embodiment, protrusion 2 and protrusion groove 2 are arranged at the same center point, and protrusion 2 is arranged in a circular shape or an elliptical shape. By evenly opening protrusion groove 1 on both sides of protrusion 2 on the surface of the outer shell, protrusion 1 is formed between protrusion groove 1, thereby realizing the structural setting of protrusion 1 and protrusion 2, and further providing the vibration resistance strength of the stamping ribs.

[0009] At least in one embodiment, the second protrusion is formed in the following manner: a second protrusion is provided at the middle of the surface of the outer shell, and a second protrusion is formed between the first protrusion and the second protrusion.

[0010] In at least one embodiment, the protrusions 1 are evenly distributed along the length direction of the outer shell and symmetrically distributed along the center line of the protrusion 2.

[0011] In at least one embodiment, the first protrusion, the second protrusion and the outer shell are coaxially arranged.

[0012] In at least one embodiment, in order to further improve the anti-vibration performance, the protrusion 1 and the protrusion groove 1 are in a "crescent-shaped" structure, and are protruded in a direction away from the protrusion groove 2.

[0013] In at least one embodiment, the protrusion is provided on the surface of the outer shell by any one of stamping, casting, blow molding or 3D printing.

[0014] In summary, the utility model provides a corrugated radial reinforcement structure of a long battery box shell, which realizes that the natural modal frequency is further improved on the basis of the same stamping rib area; specifically: a circular or elliptical protrusion is provided at the center of the box shell; several crescent-shaped protrusions are arranged from the center to both ends in the length direction of the box according to the size; the sun "circle" and several moon "bends" form a water ripple radial structure; on the basis of the same protrusion area, the vibration resistance is improved compared with the traditional reinforcement structure; the structural features of this patent are widely used, and can be applied to similar box structures in addition to battery boxes; in addition to stamping processes, casting, blow molding, 3D printing, etc. can all implement this structure; BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the existing long battery box shell reinforcement structure;

[0016] Figure 2 It is a schematic diagram of the reinforced structure of the long battery box shell of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure performance comparison between the reinforcement structure of the utility model and the existing reinforcement structure;

[0018] In the figure: outer shell 1, convex groove 2, protrusion 1 3, protrusion 2 4, convex groove 1 5. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] like Figure 2 As shown:

[0021] The utility model discloses a corrugated radial reinforcement structure of a long battery box shell, comprising an outer shell body 1, wherein at least one convex groove 2 is arranged on the surface of the outer shell body 1, and a convex groove 2 is arranged on the outer shell body 1 in the circumferential direction of the convex groove 2. The surface of the outer shell body 1 is provided with convex grooves 3 uniformly distributed in the direction of both sides of the convex groove 2 with the convex groove 2 as the center point, and the combination of the convex grooves 4 and the convex grooves 3 on both sides of the convex groove 2 is all in the shape of water ripples.

[0022] Specifically: the surface of the battery box outer shell is provided with a convex groove 2, and the convex groove 2 is a concave structure, so that the circumferential outer shell 1 surface of the convex groove 2 is formed into a convex protrusion 4, and a convex protrusion 3 is located at the center of the convex groove 2 and radiates to both sides of the convex groove 2 to form a water corrugated structure. It is arranged on the surface of the outer shell 1 on both sides of the convex groove 2, so as to further improve the vibration resistance of the outer shell.

[0023] In at least one embodiment, protrusion 2 4 is arranged at the same center point as protrusion groove 2, and protrusion 2 4 is arranged in a circular shape or an elliptical shape. Protrusion grooves 1 5 are evenly provided on the surface of the outer shell 1 on both sides of protrusion 2 4, and protrusion 1 3 is formed between the protrusion grooves 1 5, thereby realizing the structural setting of protrusion 1 3 and protrusion 2 4, and further providing the vibration resistance strength of the stamping ribs.

[0024] In at least one embodiment, the second protrusion 4 is formed in the following manner: a second protrusion 2 is provided at the middle of the surface of the outer shell 1 , and the second protrusion 4 is formed between the first protrusion 5 and the second protrusion 2 .

[0025] In at least one embodiment, the protrusions 1 3 are evenly distributed along the length direction of the outer shell 1 , and are symmetrically distributed along the center line of the protrusion 2 2 .

[0026] In at least one embodiment, the protrusion 1 3 , the protrusion 2 4 , and the outer shell 1 are coaxially arranged.

[0027] In at least one embodiment, in order to further improve the anti-vibration performance, the protrusion 3 and the groove 5 are in a "crescent-shaped" structure and are protruded in a direction away from the groove 2.

[0028] In at least one embodiment, the protrusion 3 is formed on the surface of the outer shell 1 by any one of stamping, casting, blow molding or 3D printing.

[0029] In at least one embodiment, the second convex groove 2 is formed on the surface of the outer shell 1 by any one of stamping, casting, blow molding or 3D printing.

[0030] The technical structural features of the utility model patent are as follows: This patent proposes a structure composed of a protrusion 2 4 set in the middle, a shape structure similar to the "circle" of the sun, and several protrusions 1 3 with a "curved" structure of the moon. The appearance of the structure composed of protrusions 2 4 and protrusions 1 3 is similar to the radial structure of water ripples, which further improves the vibration resistance of the shell. After performance analysis and calculation, on the basis of the same stamping rib area, the natural modal frequency is further improved.

[0031] Structural features of this patent:

[0032] There is a circular or elliptical protrusion in the center of the box shell; several crescent-shaped protrusions are arranged from the center to both ends in the length direction of the box according to their sizes; the sun "circle" and several moon "bends" form a water ripple radial structure; on the basis of the same protrusion area, the vibration resistance is improved compared with the traditional reinforced structure;

[0033] The patented structural features are widely used. In addition to battery boxes, they can be applied to similar box structures. In addition to stamping processes, casting, blow molding, 3D printing, etc. can also implement this structure.

[0034] like Figure 3 As shown (left figure), the first modal frequency of the conventional structure is 16.14 Hz;

[0035] like Figure 3 As shown (right figure), the first-order modal frequency of the patented structure is 22.06Hz. The frequency is increased by 6Hz by simply changing the stamping ribs of the shell. The anti-vibration performance is significantly improved, and it has great application and promotion value.

[0036] The embodiments of the present invention are only used to illustrate the present invention and do not constitute a limitation on the scope of the claims. Other substantially equivalent alternatives that can be thought of by those skilled in the art are all within the protection scope of the present invention.

Claims

1. A corrugated radial reinforcement structure of an elongated battery box housing, characterized in that: The invention comprises an outer shell (1), wherein at least one convex groove (2) is arranged on the surface of the outer shell (1), and a convex protrusion (4) is arranged on the outer shell (1) surface circumferentially of the convex groove (2). The surface of the outer shell (1) is evenly distributed with convex protrusions (3) in the direction of both sides of the convex groove (2) with the convex groove (2) as the center point, and the combination of the convex protrusions (4) and the convex protrusions (3) on both sides of the convex groove (2) are all in the shape of water ripples.

2. The corrugated radial reinforcement structure of the elongated battery box shell according to claim 1, characterized in that: The second protrusion (4) and the second protrusion groove (2) are arranged at the same center point, and the second protrusion (4) is arranged in a circular or elliptical shape. The surface of the outer shell (1) is evenly provided with a first protrusion groove (5) on both sides of the second protrusion (4), and a first protrusion (3) is formed between the first protrusion grooves (5).

3. The corrugated radial reinforcement structure of the elongated battery box shell according to claim 2, characterized in that: A second convex groove (2) is arranged in the middle of the surface of the outer shell (1), and a second protrusion (4) is formed between the first convex groove (5) and the second convex groove (2).

4. The corrugated radial reinforcement structure of the elongated battery box shell according to claim 1, characterized in that: The protrusions 1 (3) are evenly distributed along the length direction of the outer shell (1) and symmetrically distributed along the midline of the protrusion 2 (2).

5. The corrugated radial reinforcement structure of the elongated battery box shell according to claim 1, characterized in that: The protrusion 1 (3), the protrusion 2 (4) and the outer shell (1) are coaxially arranged.

6. The corrugated radial reinforcement structure of the elongated battery box shell according to claim 2, characterized in that: The protrusion 1 (3) and the protrusion groove 1 (5) are in a "crescent-shaped" structure and are arranged to protrude in a direction away from the protrusion groove 2 (2).

7. The corrugated radial reinforcement structure of the elongated battery box shell according to claim 1, characterized in that: The protrusion (3) is formed on the surface of the outer shell (1) by any one of stamping, casting, blow molding or 3D printing.

8. The corrugated radial reinforcement structure of the elongated battery box shell according to claim 1, characterized in that: The second convex groove (2) is formed on the surface of the outer shell (1) by any one of stamping, casting, blow molding or 3D printing.

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