Welding structure of side plate and end plate of battery tray

Abstract

The utility model provides a welding structure of a side plate and an end plate of a battery tray. The end part of the end plate is L-shaped, the end surface of the short edge of the L shape is a second welding surface, one side of the side plate is provided with a side plate welding end, the side plate welding end is provided with a first step part, the side surface of the first step part is a first welding surface, and the first welding surface and the second welding surface form welding connection; a second step part is formed at the welding end of the side plate below the first step part, the end face of the second step part is a first end face, the top face of the second step part corresponds to the L-shaped short edge of the end of the end plate, and the first end face corresponds to the L-shaped long edge of the end of the end plate. According to the utility model, the problems of how to improve the connection strength between the end plate and the side plate of the battery tray and how to improve the air tightness in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery tray side plate and end welding structure, and especially relates to a welding structure of battery tray side plate and end plate. BACKGROUND

[0002] At present, the end plate 12 end of the battery tray 11 is L-shaped, the end face of the L-shaped short side 12-1 of the end plate is a first mounting surface 12-2, the end face 13-2 of the side plate welding end 13-1 is welded with the first mounting surface 12-2, and there is a gap 12-4 (such as a groove with a gap of about 12mm wide) between the end face of the side plate 13 and the L-shaped long side 12-3 of the end plate, so that the welding gun head can enter the gap 12-4 and the end face of the side plate 13 is welded with the first mounting surface 12-2 (such as welding by butt joint welding seam to form the connecting part 11-1 of the side plate and the end plate), and the battery tray frame structure is insufficient in strength, the welding strength is insufficient, cracks are prone to occur, and the air tightness is invalid.

[0003] Therefore, how to improve the connecting strength between the end plate and the side plate of the battery tray and improve the air tightness becomes a technical problem to be solved. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a welding structure of battery tray side plate and end plate, and mainly solves the problem of how to improve the connecting strength between the end plate and the side plate of the battery tray and improve the air tightness in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of a welding structure of battery tray side plate and end plate, the end plate end is L-shaped, the end face of the L-shaped short side is a second welding surface, and the side plate one side is provided with a side plate welding end, the side plate welding end is provided with a first step part, the side face of the first step part is a first welding surface, the first welding surface and the second welding surface form a welding connection.

[0006] The side plate welding end below the first step part forms a second step part, the end face of the second step part is a first end face, the top face of the second step part corresponds to the L-shaped short side of the end plate end, and the first end face corresponds to the L-shaped long side of the end plate end.

[0007] Further, the corner part of the first step part is provided with a first inclined surface, the corner part of the top of the end face of the L-shaped short side is provided with a second inclined surface, and the first inclined surface and the second inclined surface form a V-shaped groove.

[0008] The first step part is located on the upper part of the side plate welding end.

[0009] In view of the above technical features, the utility model has the following beneficial effects:

[0010] 1. The welding structure of the battery tray side plate and the end plate, through the design of the first step part and the second step part, when welding, the second step part is embedded in the inner end of the L-shaped end plate, after welding, the second step part and the L-shaped short side of the end plate end part, the L-shaped long side of the end plate end part correspond (similar to the mortise and tenon structure), realize mutual support on structure, improve the connection strength and stability between the side plate and the end plate, also reduce the risk of welding bead air leakage, improve the air tightness.

[0011] 2. The welding structure of the battery tray side plate and the end plate, by setting a V-shaped groove at the welding position, further improves the welding strength and stability, reduces the generation of welding deformation and cracks, thereby reducing the risk of battery tray air tightness failure, and improves the welding quality. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structure diagram of a battery tray in the prior art.

[0013] Figure 2 is a structure diagram of the welding structure of the battery tray side plate and the end plate in the prior art.

[0014] Figure 3 is a structure diagram of the battery tray side plate in specific embodiment 1 Figure 1 .

[0015] Figure 4 is a structure diagram of the battery tray side plate in specific embodiment 1 Figure 2 .

[0016] Figure 5 is a structure diagram of the welding structure of the battery tray side plate and the end plate in specific embodiment 1.

[0017] In the figure: 1, side plate; 1-1, side plate welding end; 1-2, first step part; 1-3, first inclined surface; 1-4, first welding surface; 1-5, second step part; 1-6, first end surface; 1-7, top surface of the second step part;

[0018] 2, end plate; 2-1, L-shaped short side; 2-2, second welding surface; 2-3, second inclined surface; 2-4, L-shaped long side;

[0019] 3, V-shaped groove.

[0020] In the prior art: 11, battery tray; 11-1, side plate and end plate connection; 12, end plate; 12-1, L-shaped short side of the end plate; 12-2, first mounting surface; 12-3, L-shaped long side of the end plate; 12-4, gap; 13, side plate; 13-1, side plate welding end; 13-2, end surface of the side plate welding end. DETAILED DESCRIPTION

[0021] The utility model is further illustrated in conjunction with the specific implementation. It should be understood that these embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, the person skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the claims attached to the present application.

[0022] Referring to Figures 3 to 5 , specific embodiment 1, this embodiment 1 provides a kind of welding structure of battery tray side plate and end plate, the frame of battery tray generally includes left and right side plates 1 and rear end plate 2, to one of side plate 1 and end plate 2 connection, for example, end plate 2 end is L-shaped, the end face of L-shaped short side 2-1 is second welding surface 2-2, side plate 1 one side is equipped with side plate 1 welding end 1-1, side plate 1 welding end 1-1 is equipped with first step portion 1-2, the side surface of first step portion 1-2 is first welding surface 1-4, and first welding surface 1-4 forms welding connection with second welding surface 2-2;Preferably, first step portion 1-2 is located on the upper portion of side plate 1 welding end 1-1.

[0023] The welding end 1-1 of side plate 1 below first step portion 1-2 forms second step portion 1-5, and the end face of second step portion 1-5 is first end face 1-6, and the top surface 1-7 of second step portion corresponds to the L-shaped short side 2-1 of end plate 2 end, and the first end face 1-6 corresponds to the L-shaped long side 2-4 of end plate 2 end.

[0024] When welding, second step portion 1-5 is embedded in the inner of L-shaped end plate 2 end, after first welding surface 1-4 and second welding surface 2-2 are welded, second step portion 1-5 and the L-shaped short side 2-1 of end plate 2 end, the L-shaped long side 2-4 of end plate 2 end correspond (similar to mortise and tenon structure), and the structure is realized mutual support, forms more stable support structure, improves the connection strength and stability between side plate 1 and end plate 2, also reduces the risk of welding bead air leakage, improves air tightness.

[0025] The corner portion of first step portion 1-2 is equipped with first inclined surface 1-3, and the end face top corner portion of L-shaped short side 2-1 is equipped with second inclined surface 2-3, and first inclined surface 1-3 and second inclined surface 2-3 form V-shaped groove 3, by V-shaped groove 3, compared with butt joint weld, can increase welding bead penetration by a part, improve welding strength, reduce the risk of air tightness failure. Welding mode can be arc welding, and appropriate preheating and cooling measures are adopted in the welding process to reduce the generation of welding deformation and crack.

[0026] The material of battery tray side plate 1 and end plate 2 is all high-strength aluminum alloy 6061-T6, which has good strength and toughness.

[0027] In the description of the present application, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0029] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A welding structure for a battery tray side plate and an end plate, wherein the end of the end plate (2) is L-shaped, and the end face of the short side (2-1) of the L-shape is a second welding surface (2-2), characterized in that: The side plate (1) has a side plate welding end (1-1) on one side, and the side plate welding end (1-1) has a first step (1-2). The side of the first step (1-2) is a first welding surface (1-4), and the first welding surface (1-4) and the second welding surface (2-2) form a welded connection. The side plate welding end (1-1) below the first step (1-2) forms the second step (1-5). The end face of the second step (1-5) is the first end face (1-6). The top face (1-7) of the second step corresponds to the short side (2-1) of the L-shaped end of the end plate (2). The first end face (1-6) corresponds to the long side (2-4) of the L-shaped end of the end plate (2).

2. The welding structure of the battery tray side plate and end plate according to claim 1, characterized in that: The first step (1-2) has a first inclined surface (1-3) at the corner, and the top corner of the end face of the L-shaped short side (2-1) has a second inclined surface (2-3). The first inclined surface (1-3) and the second inclined surface (2-3) form a V-shaped bevel (3).

3. The welding structure of the battery tray side plate and end plate according to claim 2, characterized in that: The first step (1-2) is located above the welding end (1-1) of the side plate.

Images