阅读说明：本技术 一种铝挤出型材底板和侧板拼接结构 (Aluminum extrusion profile bottom plate and side plate splicing structure ) 是由 陈帅帅 熊栋 倪恒国 王骞 张净华 杨坤 宋金庄 于 2019-10-18 设计创作，主要内容包括：本发明属于新能源汽车铝电池包技术领域,提供了一种铝挤出型材底板和侧板拼接结构,包括四个侧板以及至少一个底板,四个侧板分别与底板拼接组成箱体框架,底板下表面和侧板下表面具有台阶搭接焊接结构,底板上表面与侧板上表面具有平接结构,在侧板和底板的连接处形成有排水通道。本发明的优点在于底板和侧板拼接位置设置有排水结构,提高箱体清洗后的排水能力；底板和侧板采用单面搭接和另一面平接的组合方式,成组生产效率高；侧板挤出具有薄平接边结构与底板平接,由于较薄可以缓慢减少热量散失,提高焊接性能的稳定性；箱体框架两个角部增加缺口,实现型腔内部水的快速排出。(The invention belongs to the technical field of aluminum battery packs of new energy automobiles, and provides an aluminum extruded profile bottom plate and side plate splicing structure which comprises four side plates and at least one bottom plate, wherein the four side plates are respectively spliced with the bottom plate to form a box body frame, the lower surfaces of the bottom plate and the side plates are provided with step lap joint welding structures, the upper surfaces of the bottom plate and the side plates are provided with butt joint structures, and a drainage channel is formed at the joint of the side plates and the bottom plate. The invention has the advantages that the water drainage structure is arranged at the splicing position of the bottom plate and the side plate, so that the water drainage capability of the box body after cleaning is improved; the bottom plate and the side plate adopt a combination mode of single-side lap joint and other-side butt joint, and the grouping production efficiency is high; the side plate extrusion has a thin flat joint edge structure and is in flat joint with the bottom plate, and the heat loss can be slowly reduced due to the thinness of the side plate extrusion, so that the stability of the welding performance is improved; notches are added at two corners of the box body frame, so that water in the cavity can be quickly discharged.)

1. The utility model provides an aluminium extrusion material bottom plate and curb plate mosaic structure, includes four curb plates and at least one bottom plate, four curb plates constitute box frame with the bottom plate concatenation respectively, its characterized in that, bottom plate lower surface and curb plate lower surface step overlap joint welded structure has, bottom plate upper surface and curb plate upper surface have the butt joint structure, be formed with drainage channel at the junction of curb plate and bottom plate.

2. The aluminum extrusion profile bottom plate and side plate splicing structure of claim 1, wherein the butt joint structure is characterized in that a thin butt joint edge extends from the upper surface of the side plate to the upper surface of the bottom plate, the thin butt joint edge and the upper surface of the bottom plate are provided with groove welding positions, and the thickness of the thin butt joint edge is consistent with that of the upper surface of the side plate.

3. An aluminum extrusion profile bottom plate and side plate splicing structure as claimed in claim 1 or 2, wherein the step lap welding structure comprises a step opening extending from the lower surface of the side plate to the bottom plate direction, the lower surface of the bottom plate is lapped on the step opening, a protruding plane is arranged above the step opening, and a drainage channel is formed in a space between the protruding plane and the lower surface of the thin flat joint edge.

4. The aluminum extruded profile bottom plate and side plate splicing structure as claimed in claim 3, wherein the side plate and the bottom plate are both formed by aluminum extrusion, and the side plate and the bottom plate are both provided with cavity runners.

5. The aluminum extruded profile bottom plate and side plate splicing structure of claim 4, wherein two sides of each side plate are respectively provided with a rib milling notch, the four side plates are respectively spliced with the bottom plate to form a box frame, water outlets are formed in the end parts of the four connecting corners of the integral frame, cavity runners of the side plates and the bottom plate are communicated with a drainage channel, and internal water is discharged from the drainage channel through the rib milling notches.

6. An aluminum extrusion profile bottom plate and side plate splicing structure as claimed in claim 5, wherein said four side plates are a left side plate, a right side plate, a front side plate and a rear side plate, said bottom plates are a first bottom plate, a second bottom plate, a third bottom plate and a fourth bottom plate, respectively, and said thin butt joint edge is located on the right side plate and butt joint with the upper plane of the fourth bottom plate.

Technical Field

The invention belongs to the technical field of aluminum battery packs of new energy automobiles, and particularly relates to a splicing structure of a bottom plate and a side plate of an aluminum extruded section.

Background

Along with the development of the automobile industry, particularly the new energy automobile industry, the lightweight design of the vehicle has important influence on the endurance mileage of the whole automobile, various lightweight solutions appear, the aluminum profile splicing structure has better lightweight advantages by virtue of a cavity structure, the thermal conductivity of the aluminum profile is high, higher requirements are provided for a welding process, a welding interface structure and the like, after the aluminum profile is welded, due to the fact that welding on the surface needs to be cleaned and various oil stains are blackened, but for the cavity structure, a reasonable drainage flow channel needs to be arranged inside the aluminum profile splicing structure, the aluminum profile splicing structure in the prior art is unreasonable by virtue of the cavity structure, the heat dissipation is too fast during welding, the welding quality is reduced, and meanwhile, the drainage flow channel is not easy to discharge impurities inside the aluminum profile splicing structure.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art and provides a splicing structure of a bottom plate and a side plate of an aluminum extrusion section, which realizes the machinability and increases the water drainage capacity on the premise of meeting the requirement of good welding quality.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an aluminium extrusion material bottom plate and curb plate mosaic structure, includes four curb plates and at least one bottom plate, four curb plates constitute box frame with the bottom plate concatenation respectively, its characterized in that, bottom plate lower surface and curb plate lower surface step overlap joint welded structure has, bottom plate upper surface and curb plate upper surface have the butt joint structure, be formed with drainage channel at the junction of curb plate and bottom plate.

Preferably, in the splicing structure of the bottom plate and the side plate of the aluminum extrusion profile, the butt joint structure is formed by extending a thin butt joint edge from the upper surface of the side plate to the upper surface of the bottom plate, groove welding positions are formed on the thin butt joint edge and the upper surface of the bottom plate, and the thickness of the thin butt joint edge is consistent with that of the upper surface of the side plate.

Preferably, in the splicing structure of the bottom plate and the side plate of the aluminum extruded profile, the step lap welding structure comprises a step opening extending from the lower surface of the side plate to the bottom plate, the lower surface of the bottom plate is lapped on the step opening, an extending plane is arranged above the step opening, and a drainage channel is formed in a space between the extending plane and the lower surface of the thin flat joint edge.

Preferably, in the aluminum extruded profile bottom plate and side plate splicing structure, the side plate and the bottom plate are both subjected to aluminum extrusion molding, and the side plate and the bottom plate are both provided with cavity runners.

Preferably, in the splicing structure of the bottom plate and the side plates of the aluminum extruded profile, the two sides of each side plate are respectively provided with a rib milling notch, the four side plates are respectively spliced with the bottom plate to form a box frame, the end parts of the four connecting corners of the whole frame are provided with water outlets, cavity runners of the side plates and the bottom plate are communicated with a drainage channel, and internal water is discharged from the drainage channel through the rib milling notches.

Preferably, in the above aluminum extruded profile bottom plate and side plate splicing structure, the four side plates are a left side plate, a right side plate, a front side plate and a rear side plate, the bottom plates are a first bottom plate, a second bottom plate, a third bottom plate and a fourth bottom plate, and the thin butt joint edge is located on the right side plate and is in butt joint with the upper plane of the fourth bottom plate.

Compared with the prior art, the invention has the advantages that:

1. the water drainage structure is arranged at the splicing position of the bottom plate and the side plate, so that the water drainage capacity of the box body after cleaning is improved;

2. the bottom plate and the side plate adopt a combination mode of single-side lap joint and other-side butt joint, and the grouping production efficiency is high;

4: the side plate extrusion has a thin flat joint edge structure and is in flat joint with the bottom plate, and the heat loss can be slowly reduced due to the thinness of the side plate extrusion, so that the stability of the welding performance is improved;

5, notches are added at two corners of the box body frame to realize the rapid discharge of water in the cavity;

drawings

FIG. 1 is a schematic view of the whole of a bottom plate and side plate splicing structure of an aluminum extrusion profile;

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 is a schematic view of a bottom plate and side plate splicing structure;

fig. 4 is a structural schematic diagram of a drainage channel and a rib milling notch.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

In the figure, the side plate 1; a left side plate 110; a right side plate 111; a front side panel 112; a rear side panel 113; a base plate 2; a first base plate 210; a second base plate 211; a third base plate 212; a fourth base plate 213; a drainage channel 3; a thin butt joint edge 4; groove welding position 5; a floor upper surface 6; a bottom plate lower surface 7; side panel upper surfaces 8; the side panel lower surface 9; a step opening 10; a plane 11 is extended; a lower surface 12 of the thin butt joint edge; milling notches 13 by using ribs; a drain opening 14.

As shown in fig. 1 and fig. 3, the aluminum extruded profile bottom plate and side plate splicing structure is mainly applied to a power battery system battery tray and other similar structural products, and mainly includes four side plates 1 and at least one bottom plate 2, the four side plates 1 are respectively spliced with the bottom plate 2 to form a box frame, in this embodiment, the four side plates 1 are respectively a left side plate 110, a right side plate 111, a front side plate 112 and a rear side plate 113, the bottom plates 2 are respectively a first bottom plate 210, a second bottom plate 211, a third bottom plate 212 and a fourth bottom plate 213, all the side plates 1 and the bottom plates are formed by aluminum extrusion, the side plates 1 and the bottom plates are respectively provided with a cavity flow channel, so that the weight of the whole box frame can be significantly reduced, and the cavity flow channel can be utilized for cleaning water circulation, the bottom plate lower surface 7 and the side plate lower surface 9 are provided with a step lap-welding structure, the bottom, be formed with drainage channel 3 in curb plate 1 and bottom plate 2's junction, this product can produce aluminium bits and greasy dirt here in the welding process, the event needs to wash, if inside can produce very big hidden danger to whole power battery system security if remaining aluminium bits and moisture, consequently the water discharge after washing can be passed through drainage channel 3 on the one hand to the biggest innovation of this patent, on the other hand this patent adopts the mode of step overlap joint welded structure and butt joint structural grouping, both satisfied the intensity requirement and guaranteed the high efficiency of product concatenation again, effectual improvement product production beat.

Specifically, aiming at the welded part, the butt joint structure is that a thin butt joint edge 4 extends from the upper surface 8 of the side plate to the upper surface 6 of the bottom plate, the thin butt joint edge 4 and the upper surface 6 of the bottom plate are provided with groove welding positions 5, the thickness of the thin butt joint edge 4 is consistent with that of the upper surface 8 of the side plate, the force of the embodiment is that the thin butt edge 4 is located on the right side plate 111 and is butt jointed with the upper plane of the fourth bottom plate 213, here because the upper surface 8 of the side plate is not directly welded with the upper surface 6 of the bottom plate, but is provided with a thin flat joint edge 4 when extrusion molding is adopted, so that a hollow drainage channel 3 is arranged below the thin flat joint edge 4, the thickness of the whole thin flat joint edge 4 is almost the same as that of the upper surface 6 of the bottom plate, so that the loss of welding heat can be reduced, the welding quality and stability of the upper surface 6 of the bottom plate are ensured, and groove welding is adopted when the groove welding position 5 is spliced; step overlap joint welded structure includes the step mouth 10 that curb plate lower surface 9 extends to bottom plate direction department, 7 overlap joints of bottom plate lower surface are on step mouth 10, step mouth 10 top has the plane of stretching out 11, here the overlap joint mode of the lower surface step mouth 10 cooperation bottom plate of curb plate lower surface 9 and bottom plate, can realize multiple welding (not limit to with the arc-welding, friction stir welding, laser welding), carry out the overlap joint welding with the curb plate lower surface 9 of lower part and the lower surface of bottom plate earlier in actual operation, because the position has obtained the support after the overlap joint welding is accomplished like this, just so can further guarantee the butt joint welding of curb plate upper surface 8 and the upper surface of bottom plate, the welding quality on upper portion has been guaranteed.

As shown in fig. 2 and 4, a drainage channel 3 is formed in a space between a plane 11 extending above a step opening 10 and a lower surface 12 of a thin flat joint edge, rib milling notches 13 are respectively formed in two sides of each side plate, four side plates 1 are respectively spliced with a bottom plate 2 to form a box body frame, water outlets 14 are formed in the end portions of four corners connected with the whole frame, cavity flow passages of the side plates 1 and the bottom plate 2 are communicated with the drainage channel 3, internal water is discharged from the drainage channel 3 through the rib milling notches 13 and then from the water outlets 14, the bottom plates 2, the front side plate and the rear side plate can pass through the channel, and impurities such as moisture, aluminum scraps and the like can be smoothly discharged through the rib milling notches 13 of the side plates, so that the whole box body forms the efficient drainage.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the described embodiments may be made by those skilled in the art without departing from the scope and spirit of the invention as defined by the accompanying claims.