CN-224204245-U - Rolling battery shell boundary beam

CN224204245UCN 224204245 UCN224204245 UCN 224204245UCN-224204245-U

Abstract

The utility model provides a roll-in battery case boundary beam, battery case boundary beam adopts a steel strip roll bending shaping to form, and its section is the shape of integral type mesh font section, including the first closed chamber that sets gradually, second closed chamber and third closed chamber, separate through first strengthening vertical bar between first closed chamber and the second closed chamber, separate through second strengthening vertical bar between second closed chamber and the third closed chamber, first closed chamber and third closed chamber share an up end, first closed chamber and second closed chamber share a first terminal surface down. The edge beam cutting structure is formed by adopting a strip of steel belt through roll bending forming, and has the advantages of simple forming mode, few working procedures, simple process, novel structure, high strength and strong practicability, and the cutting structure can realize the shape cutting without the working procedures of cutting, welding, repair welding and the like.

Inventors

MENG XIANRUI
LI YUE
GENG XIAOYONG
YANG XIANGYU
LIU JIANLIN
JIANG SIHUI
LI MIAO

Assignees

凌云工业股份有限公司

Dates

Publication Date: 20260505
Application Date: 20250509

Claims (9)

1. A rolled battery shell side beam is characterized in that the battery shell side beam is formed by rolling a steel strip, the section of the battery shell side beam is shaped like an integral mesh, the battery shell side beam comprises a first closed cavity (201), a second closed cavity (202) and a third closed cavity (203) which are sequentially arranged, the first closed cavity (201) and the second closed cavity (202) are separated by a first reinforcing vertical rib (7), the second closed cavity (202) and the third closed cavity (203) are separated by a second reinforcing vertical rib (5), the first closed cavity (201) and the third closed cavity (203) share an upper end face (1), and the first closed cavity (201) and the second closed cavity (202) share a first lower end face (9).
2. The rolled battery case boundary beam according to claim 1, wherein the second closed cavity (202) is formed by encircling a first reinforcing vertical rib (7), an upper inner rib (2), a second reinforcing vertical rib (5) and a first lower end surface (9), the upper inner rib (2) and a second contact point (102) of the upper end surface (1) are welded and fixed, an end roll of the first reinforcing vertical rib (7) extends to form a first flanging rib (8), a first contact point (101) of the first flanging rib (8) and the first lower end surface (9) is welded by laser penetration welding, an end roll of the first lower end surface (9) extends to form a second flanging rib (6), and a third contact point (103) of the second flanging rib (6) and the second reinforcing vertical rib (5) is welded by laser penetration welding.
3. The rolled battery can side beam according to claim 2, wherein the lengths of the first flanging rib (8) and the second flanging rib (6) are equal to or greater than 4mm.
4. The rolled battery case boundary beam according to claim 3, wherein the first closed cavity (201) is formed by enclosing an upper end surface (1), a first side surface (10), a first lower end surface (9) and a first reinforcing vertical rib (7).
5. The rolled battery case boundary beam according to claim 4, wherein the third closed cavity (203) is formed by enclosing an upper end surface (1), a second side surface (3), a second lower end surface (4) and a second reinforcing vertical rib (5).
6. The rolled battery case boundary beam according to claim 5, wherein a first step is arranged at the upper end face (1) at the upper end of the third closed cavity (203), the first step height difference D is matched with the thickness of a battery case cover plate, a second step is arranged between the second lower end face (4) and the first lower end face (9), and the second step height difference S is consistent with the thickness of a battery case supporting plate.
7. The rolled battery case boundary beam according to claim 6, wherein the first flanging rib (8) and the first reinforcing vertical rib (7) are formed by roll bending, the included angle alpha at the roll bending position is 45-150 degrees, the first reinforcing vertical rib (7) and the upper inner rib (2) are formed by roll bending, the included angle beta at the roll bending position is 45-150 degrees, the upper inner rib (2) and the second reinforcing vertical rib (5) are formed by roll bending, and the included angle gamma at the roll bending position is 30-150 degrees.
8. The rolled battery case boundary beam according to claim 7, wherein the upper inner rib (2) and the upper end surface (1) are welded by laser penetration welding or roller spot welding.
9. The rolled battery case boundary beam according to claim 8, wherein the upper end surface (1) is provided with a plurality of mounting holes (11).

Description

Rolling battery shell boundary beam Technical Field The utility model relates to a rolled battery shell side beam, and belongs to the technical field of automobile battery profiles. Background The battery pack is used as a core component of the new energy automobile, the safety is particularly important, the battery pack mainly comprises a battery shell, an electric control unit, a water cooling plate and a battery module, and the battery shell mainly comprises a battery shell boundary beam, a middle beam, a cover plate and a supporting plate. The battery shell at the present stage is mainly made of aluminum products, when an automobile is bumped sideways, the aluminum profile is easy to deform, the side beams are low in bending resistance and easy to damage a battery module, the battery is fire or explosion, and passengers are seriously injured, the aluminum extrusion profile is high in cost, and the aluminum extrusion profile is processed into the side beams of the battery shell, so that the side beams of the aluminum battery shell are high in cost. In addition, the conventional section bar is generally subjected to multi-roll section bar welding, the welding beads are more, the welding deformation control difficulty is high, the overall precision of the part is poor, the welding roll beam pressing process is complex, and the cost is high. Therefore, how to improve the rigidity and the deformation resistance of the battery shell side beam of the new energy automobile, the safety is improved, and the processing cost is reduced becomes a research direction of research personnel. Disclosure of utility model The utility model provides a rolled battery shell side beam, which is formed by adopting a strip of steel belt through roll bending forming, has the advantages of simple forming mode, less working procedures, simple process, novel structure, high strength and strong practicability, and realizes the shape cutting without the working procedures of welding and repair welding. The technical scheme adopted for solving the technical problems is as follows: The utility model provides a roll-in battery case boundary beam, battery case boundary beam adopts a steel strip roll bending shaping, and its section is the shape of integral type mesh font section, including the first closed chamber that sets gradually, second closed chamber and third closed chamber, separate through first strengthening vertical bar between first closed chamber and the second closed chamber, separate through second strengthening vertical bar between second closed chamber and the third closed chamber, first closed chamber and third closed chamber share an up end, first closed chamber and second closed chamber share a first terminal surface down. Above-mentioned roll-in battery case boundary beam, the second seal chamber is by first strengthening perpendicular muscle, go up interior muscle, second strengthening perpendicular muscle and first terminal surface enclose and close and form, go up interior muscle with the second contact spot welding of up end is fixed, the tip roll bending of first strengthening perpendicular muscle extends and forms first flanging muscle, first flanging muscle with the first contact point of terminal surface adopts laser to pierce through the welding, the tip roll bending of terminal surface extends and forms the second flanging muscle under first, the second flanging muscle with the third contact point of second strengthening perpendicular muscle adopts laser to pierce through the welding. Above-mentioned roll-in battery case boundary beam, the length of first turn-ups muscle and second turn-ups muscle is all greater than or equal to 4mm. Above-mentioned roll-in battery case boundary beam, first closed chamber is enclosed by up end, first side, first terminal surface and first strengthening vertical rib and closes and form. Above-mentioned roll-in battery case boundary beam, the third closed chamber is enclosed by up end, second side, second lower terminal surface and second strengthening vertical rib and closes and form. The rolled battery shell side beam is provided with a first step at the upper end face of the upper end of the third closed cavity, the first step is matched with the thickness of a battery shell cover plate in height difference D, a second step is arranged between the second lower end face and the first lower end face, and the second step is consistent with the thickness of a battery shell supporting plate in height difference S. Above-mentioned roll-in battery case boundary beam, first flanging muscle and first perpendicular muscle roll bending shaping, the contained angle alpha of roll bending department is 45 ~150, first strengthening muscle and last internal bead roll bending shaping, the contained angle beta of roll bending department is 45 ~150, last internal bead and the perpendicular muscle roll bending shaping of second, the contained angle gamma of roll bending department is 30~ 150.