A high-strength sheet metal tailor-welded structure battery box

Abstract

The utility model discloses a kind of battery box of high-strength sheet metal tailor-welded structure, including battery box main body, the four side edges of battery box main body are all bent to form flanging, the outer side four quarters of battery box main body are all welded groove type reinforcing rib plate, groove type reinforcing rib plate and the side edge of battery box main body and flanging are correspondingly matched and form double-layer pipe installation structure.The utility model processes battery box main body using sheet metal bending process, the four side edges of battery box main body are all provided with flanging, then welding a groove type reinforcing rib plate on outer side four quarters, by the mutual cooperation between groove type reinforcing rib plate and box main body, complete double-layer pipe installation structure is formed on the four sides of battery box, the torsional and bending characteristics of battery box are greatly improved, ensure that battery box has very high structural strength, compared with traditional battery box structure, optimize structure, improve the grouping efficiency of battery box, reduce battery box processing cost.

Description

Technical Field

[0001] This utility model relates to the field of battery box technology, specifically to a battery box with a high-strength sheet metal welded structure. Background Technology

[0002] To address the need for a balance between cost and safety in battery enclosures, battery enclosures with sheet metal bending and welding structures have gained a significant market share due to their good cost-effectiveness. However, most current sheet metal enclosure designs are complex and bulky, which affects the energy density of the battery system and results in relatively high manufacturing costs.

[0003] Patent CN120376860A discloses a high-strength sealed sheet metal welded structure battery box for a new energy storage system. The battery box body has four semi-enclosed tubular structures on its four sides, integrally formed with the battery box body. A recessed boss is provided at the bottom of the battery box body, integrally formed with the battery box body. An electrical mounting plate is fixed to the inner front wall of the battery box body. Front and rear module ribs are fixed inside the battery box body, with the boss located between the front and rear module ribs. This patent is a prior art patent of the applicant, and the battery box body forms a single-layer tubular structure around its perimeter, thus proposing a battery box with even higher structural strength. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a battery box with a high-strength sheet metal welded structure. The structure is optimized and the main body of the battery box is processed by sheet metal bending process. A complete double-layer tubular structure is formed on all four sides of the battery box, which greatly improves the torsional and bending resistance of the battery box, ensures that the battery box has very high structural strength, and at the same time reduces the processing cost of the battery box, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a battery box with a high-strength sheet metal welded structure, including a battery box body, wherein the upper ends of the four sides of the battery box body are bent to form folded edges, and grooved reinforcing ribs are welded to the outer perimeter of the battery box body. The grooved reinforcing ribs correspond to and cooperate with the sides and folded edges of the battery box body to form a double-layer tubular structure.

[0006] Preferably, the upper side plate of the groove-shaped reinforcing rib is welded to the side of the battery box body, and the lower side plate of the groove-shaped reinforcing rib extends to the bottom of the battery box body and is welded thereon.

[0007] Preferably, the side of the battery box body is also provided with a bending step, and the upper side plate of the grooved reinforcing rib plate is welded to the bending step after being attached to it.

[0008] Preferably, the folded edge includes a horizontal folded edge and a vertical folded edge. After the grooved reinforcing rib plate is welded to the battery box body, the vertical folded edge of the folded edge is folded down and welded to the upper side plate of the grooved reinforcing rib plate.

[0009] Preferably, the vertical folded edge of the folded edge is flush with the side of the grooved reinforcing rib plate.

[0010] Preferably, the bottom of the battery box body has multiple protrusions arranged in a linear array facing inward, and the bottom surface of the battery box body is welded with a linear array of reinforcing ribs, which are located between two adjacent protrusions.

[0011] Preferably, the bottom surface of the reinforcing rib is flush with the bottom surface of the grooved reinforcing rib plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The battery box body is processed by sheet metal bending process, and each of the four sides of the battery box body is provided with a folded edge. Then, a channel-shaped reinforcing rib is welded to each of the four outer sides. Through the mutual cooperation between the channel-shaped reinforcing rib and the box body, a complete double-layer tubular structure is formed on all four sides of the battery box body, which greatly improves the torsional and bending resistance of the battery box body and ensures that the battery box body has very high structural strength. Compared with the traditional battery box body structure, the structure is optimized, which improves the assembly efficiency of the battery box body and reduces the processing cost of the battery box body. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 A partial structural cross-section of this utility model Figure One ; Figure 3 A partial structural cross-section of this utility model Figure Two .

[0014] In the diagram: 1. Battery box body, 2. Folded edge, 3. Groove reinforcing rib, 4. Bending step. Detailed Implementation

[0015] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation.

[0016] Please see Figures 1-3 The present invention provides the following technical solution: Example 1: A battery box with a high-strength sheet metal welded structure, including a battery box body 1, the upper ends of the four sides of the battery box body 1 are all bent to form folded edges 2, and the outer perimeter of the battery box body 1 is welded with grooved reinforcing ribs 3. The grooved reinforcing ribs 3 correspond to and cooperate with the sides of the battery box body 1 and the folded edges 2 to form a double-layer tubular structure. The battery box body 1 is processed by sheet metal bending. Each of the four sides of the battery box body 1 is provided with a folded edge 2. Then, a channel-shaped reinforcing rib 3 is welded to each of the four sides of the outer side. Through the cooperation between the channel-shaped reinforcing rib 3, the battery box body 1 and the folded edges 2, a complete double-layer tubular structure is formed on all four sides of the battery box body 1, which greatly improves the torsional and bending resistance of the battery box and increases the structural strength of the battery box. In addition, the four sides of the battery box are processed by bending process. Compared with the traditional four-side welding, the process flow and welding strength are reduced, and the processing cost of the battery box is reduced.

[0017] Example 2: Unlike Example 1, the upper side plate of the groove-shaped reinforcing rib plate 3 is welded to the side of the battery box body 1, and the lower side plate of the groove-shaped reinforcing rib plate 3 extends to the bottom of the battery box body 1 and is welded; the side of the battery box body 1 is also provided with a bending step 4, and the upper side plate of the groove-shaped reinforcing rib plate 3 is welded to the bending step 4 after corresponding contact, increasing the welding contact area and facilitating welding.

[0018] Example 3: Unlike Example 1, the folded edge 2 includes a horizontal folded edge and a vertical folded edge. After the grooved reinforcing rib plate 3 is welded to the battery box body 1, the vertical folded edge of the folded edge 2 is folded down and welded to the upper side plate of the grooved reinforcing rib plate 3. The vertical folded edge of the folded edge 2 is flush with the side of the grooved reinforcing rib plate 3 to ensure that the outer periphery of the battery box body 1 is flush.

[0019] Example 4: Unlike Example 1, the bottom of the battery box body 1 has multiple protrusions arranged in a linear array facing inward. The bottom surface of the battery box body 1 is welded with a linear array of reinforcing ribs. The reinforcing ribs are located between two adjacent protrusions to improve the support strength of the bottom surface of the battery box body 1. The bottom surface of the reinforcing ribs is flush with the bottom surface of the groove-shaped reinforcing rib plate 3.

[0020] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to include all changes that fall within the meaning and scope of equivalents in the content of this utility model.

Claims

1. A battery box with a high-strength sheet metal welded structure, comprising a battery box body (1), characterized in that: The upper ends of the four sides of the battery box body (1) are bent to form folded edges (2). The outer sides of the battery box body (1) are welded with grooved reinforcing ribs (3). The grooved reinforcing ribs (3) correspond to and cooperate with the sides and folded edges (2) of the battery box body (1) to form a double-layer tube structure.

2. The battery box with a high-strength sheet metal welded structure according to claim 1, characterized in that: The upper side plate of the groove-shaped reinforcing rib plate (3) is welded to the side of the battery box body (1), and the lower side plate of the groove-shaped reinforcing rib plate (3) extends to the bottom of the battery box body (1) and is welded.

3. The battery box with a high-strength sheet metal welded structure according to claim 2, characterized in that: The side of the battery box body (1) is also provided with a bending step (4), and the upper side plate of the grooved reinforcing rib plate (3) is welded to the bending step (4) after being attached to each other.

4. The battery box with a high-strength sheet metal welded structure according to claim 1, characterized in that: The folded edge (2) includes a horizontal folded edge and a vertical folded edge. After the grooved reinforcing rib plate (3) is welded to the battery box body (1), the vertical folded edge of the folded edge (2) is folded down and welded to the upper side plate of the grooved reinforcing rib plate (3).

5. The battery box with a high-strength sheet metal welded structure according to claim 4, characterized in that: The vertical fold of the fold (2) is flush with the side of the grooved reinforcing rib plate (3).

6. The battery box with a high-strength sheet metal welded structure according to claim 1, characterized in that: The bottom of the battery box body (1) has multiple protrusions arranged in a linear array facing inwards. The bottom surface of the battery box body (1) is welded with a linear array of reinforcing ribs, which are located between two adjacent protrusions.

7. The battery box with a high-strength sheet metal welded structure according to claim 6, characterized in that: The bottom surface of the reinforcing rib is flush with the bottom surface of the grooved reinforcing rib plate (3).

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