Welding structure of battery tray frame profile

Abstract

The utility model discloses a welding structure of a battery tray frame section bar, which comprises an annular pipe and a reinforcing plate, the reinforcing plate is arranged between the top end and the bottom of the annular pipe, the first end face and the second end face of the reinforcing plate are respectively connected with the top end and the bottom of the annular pipe through welding, and the annular pipe is integrally formed. According to the utility model, the projection welding method is adopted for connection, so that the complexity of profile processing technology forming in the prior art is reduced, and the manufacturing cost of the profile is reduced. Meanwhile, the two faces of the reinforcing plate are welded into a whole through a projection welding method, the overall structural strength of the profile is improved, the process is simple, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery tray manufacturing technology, and in particular to a welded structure for a battery tray frame profile. Background Technology

[0002] In the field of new energy vehicles, battery trays, as core components, bear the important task of protecting battery packs. They are typically made of high-strength, lightweight steel plates rolled into customized shapes, requiring both weight reduction and structural strength. Figure 1 As shown, the commonly used battery tray frame profile 1a requires laser welding to fill the gaps at the first weld 2 and the second weld 3 shown in the figure. The strength of the structure is enhanced by continuous support ribs 4a. The laser welding equipment is expensive, the cost of welding a single piece is much higher than that of spot welding, the energy consumption is high, and the manufacturing process is relatively complex. Utility Model Content

[0003] This utility model proposes a welding structure for a battery tray frame profile to address the shortcomings of existing technologies, aiming to reduce costs and significantly improve production efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A welded structure for a battery tray frame profile includes an annular tube and a reinforcing plate. The reinforcing plate is placed between the top and bottom of the annular tube. The first end face and the second end face of the reinforcing plate are respectively welded to the top and bottom of the annular tube. The annular tube is integrally formed.

[0006] Preferably, multiple reinforcing plates can be arranged inside the annular tube and connected in sequence.

[0007] Preferably, the first end face and the second end face are respectively provided with a plurality of protrusions, and the reinforcing plate is connected to the annular tube by projection welding through the protrusions.

[0008] This invention utilizes standard high-strength steel profiles and reinforcing plates connected by projection welding, reducing the complexity of profile processing and forming in existing technologies and lowering manufacturing costs. Simultaneously, projection welding integrates both sides of the reinforcing plate with the annular tube, increasing the overall structural strength of the profile. The process is simple and production efficiency is improved. Attached Figure Description

[0009] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings:

[0010] Figure 1 A schematic diagram of the prior art of this utility model;

[0011] Figure 2 This utility model provides a welding structure for a battery tray frame profile;

[0012] Figure 3 A schematic diagram of the reinforcing plate of this utility model;

[0013] Figure 4 Another structural schematic diagram of the reinforcing plate of this utility model.

[0014] The following are the labels in the diagram: 1. Ring tube; 1a. Battery tray frame profile; 2. First weld; 3. Second weld; 4a. Support rib; 101. Top; 102. Bottom; 5. Reinforcing plate; 501. First end face; 502. Second end face; 6. Protrusion. Detailed Implementation

[0015] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0016] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0017] It should be noted that all directional indications (such as up-down-left-right-forward-backward...) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0018] like Figure 1 As shown, in the prior art, the battery tray frame profile 1a is formed by roll forming a customized shape. Due to position and space limitations, the first weld 2 and the reinforcing rib 4a, and the second weld 3 and one end of the battery tray frame profile 1a need to be laser welded to connect them into one piece. The profile is customized and therefore has high cost. At the same time, the laser welding equipment is expensive, the cost of welding a single piece is high, the high power output consumes energy, and it also has high requirements for the working environment.

[0019] This utility model provides a welded structure for a battery tray frame profile, such as... Figures 2 to 4As shown, the device includes an annular tube 1 and a reinforcing plate 5. The reinforcing plate 5 is positioned between the top end 101 and the bottom end 102 of the annular tube 1. The first end face 501 and the second end face 502 of the reinforcing plate 5 are respectively welded to the top end 101 and the bottom end 102 of the annular tube 1. The annular tube 1 is integrally formed. Specifically, the annular tube 1 is formed by extrusion molding.

[0020] In one embodiment, in this utility model, as Figure 4 As shown, the first end face 501 and the second end face 502 of the reinforcing plate 5 are provided with multiple protrusions 6, which can be connected to the top end 101 and bottom end 102 of the annular tube 1 respectively by projection welding. The reinforcing plate 5 is assembled into the annular tube 1 and placed in a fixed fixture. The annular tube is clamped by the upper and lower plates of the resistance welding clamp in the projection welding equipment, and the welding pressure and welding current of the corresponding parameters are applied. The projection welding is performed according to the projection welding requirements of the annular tube by executing an automated welding program. The production efficiency is fast and the weld strength is reliable.

[0021] In another embodiment, such as Figure 3 As shown, no protrusions 6 are provided on the first end face 501 and the second end face 502 of the reinforcing plate 5. The reinforcing plate 5 is connected to the annular tube 1 by resistance spot welding.

[0022] This utility model can also be used to set multiple reinforcing plates 5 in the annular tube 1 and connect them in sequence by projection welding. It is suitable for different scenarios, such as extended square tubes, annular tubes, etc. Multiple reinforcing plates are set in the hollow tube in proportion and projected to increase the overall structural strength of the profile. The process is simple and saves costs. It should be noted that the reinforcing plate mentioned in this utility model can be a square tube, a solid plate or a special-shaped tube, which is a pipe or plate that plays a connecting and supporting role.

[0023] This invention replaces the existing laser welding method with resistance projection welding, resulting in significant cost savings. It simplifies raw material procurement and processing, ensures more stable welding quality, reduces material consumption, and lowers the production cost of profiles. It fully meets the structural strength requirements of battery trays while reducing weight, thus promoting the development and innovation of battery tray manufacturing technology. Furthermore, given the technical requirements, projection welding can be applied in other processing and manufacturing fields.

[0024] This invention utilizes standard high-strength steel profiles and reinforcing plates connected by projection welding, reducing the complexity of profile processing and forming in existing technologies and lowering manufacturing costs. Simultaneously, projection welding integrates both sides of the reinforcing plate with the annular tube, increasing the overall structural strength of the profile. The process is simple and production efficiency is improved.

[0025] The parts not covered in this technical solution can be implemented using existing technologies.

[0026] The foregoing has shown and described the basic principles, main features, and characteristics of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model includes the appended claims and their equivalents.

Claims

1. A welded structure of a battery tray frame profile, characterized by: It includes an annular tube (1) and a reinforcing plate (5). The reinforcing plate (5) is placed between the top end (101) and the bottom end (102) of the annular tube (1). The first end face (501) and the second end face (502) of the reinforcing plate (5) are respectively welded to the top end (101) and the bottom end (102) of the annular tube (1). The annular tube (1) is integrally formed.

2. A welded construction of a battery tray frame section according to claim 1, characterized in that: Multiple reinforcing plates (5) can be installed inside the annular tube (1) and connected in sequence.

3. A welded construction of a battery tray frame section according to claim 1, characterized in that: The first end face (501) and the second end face (502) are respectively provided with a plurality of protrusions (6), and the reinforcing plate (5) is connected to the annular tube (1) by projection welding through the protrusions (6).

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