CN213676352U - High-strength steel roll-in tailor-welded battery box boundary beam - Google Patents
High-strength steel roll-in tailor-welded battery box boundary beam Download PDFInfo
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- CN213676352U CN213676352U CN202021759544.3U CN202021759544U CN213676352U CN 213676352 U CN213676352 U CN 213676352U CN 202021759544 U CN202021759544 U CN 202021759544U CN 213676352 U CN213676352 U CN 213676352U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model provides a high strength steel roll-in tailor-welded battery case boundary beam, for falling T shape, includes middle part roof beam, interior curb girder, outside roof beam, is equipped with the automobile body mounting hole on the outside roof beam, the boundary beam is high strength steel sheet and makes through roll-in, welding, middle part roof beam, interior curb girder, outside roof beam are rectangle cavity structure, and the height that highly is higher than the inboard roof beam of outside roof beam, middle part roof beam are equipped with additional strengthening. The utility model has the main advantages as follows: 1. the battery box is made of high-strength steel or ultrahigh-strength steel materials through rolling and welding processes, so that the performance of the edge beam is improved, structural optimization and weight reduction are facilitated, and an excavated space is brought to the weight reduction and cost reduction of the battery box; 2. the edge beam structure is flexibly designed according to the stress characteristics of the edge beam, and the strength of the middle beam and the strength of the inner beam are improved through the design of the reinforcing structure; 3. the structure of the outside beam is beneficial to the energy absorption effect in collision, and the safety performance is improved.
Description
Technical Field
The utility model relates to an automobile safety part, especially have the high strength steel roll-in tailor-welded battery case boundary beam who subtracts heavy cost effect that falls.
Background
At present, a lower shell of a battery box is an important part of a new energy electric automobile, and the lower shell comprises an edge beam and a bottom plate, wherein the edge beam plays a role in bearing the battery box and connecting the battery box with an automobile body. On one hand, the design of the battery box is considered as a power battery module tray, and the power battery module tray plays a role in mounting, fixing and protecting a power battery system; on the other hand, the mechanical property of the battery box is considered to be improved, the traditional automobile engine and a chassis system are assisted, and the functions of the traditional automobile longitudinal beam and the traditional automobile transverse beam are partially shared; meanwhile, as a key part of a new energy automobile, the safety, reliability and durability of the lower shell of the battery box are very important, and the performance of the whole automobile is determined. At present, the lower shell of the battery box is mostly manufactured by adopting the processes of aluminum alloy extruded section bar + arc welding or aluminum alloy extruded section bar + friction stir welding and the like, and the problems exist: the molding process has high cost, is difficult to have space for reducing weight and cost, and is difficult to meet the requirement of assisting the functions of the chassis system of the automobile engine.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the drawback of solving prior art, provide a simplify the process, improve the high strength steel roll pressure tailor-welded battery case boundary beam of performance.
The problem of the utility model is realized with following technical scheme:
the utility model provides a high strength steel roll-in tailor-welded battery case boundary beam, for falling T shape, includes middle part roof beam, interior curb girder, outside roof beam, is equipped with the automobile body mounting hole on the outside roof beam, the boundary beam is high strength steel sheet and makes through roll-in, welding, middle part roof beam, interior curb girder, outside roof beam are rectangle cavity structure, and the height that highly is higher than the inboard roof beam of outside roof beam, middle part roof beam are equipped with additional strengthening.
According to the high-strength steel roll-in tailor-welded battery box boundary beam, the reinforcing structure is the reinforcing beam, the reinforcing beam is located in the cavity of the middle beam, the section of the reinforcing beam is trapezoidal with an open large end, the closed surface of the reinforcing beam is welded with the inner wall, close to the outer side beam, of the middle beam, the lower end of the closed surface of the reinforcing beam is not lower than the upper wall of the outer side beam, the opening surface of the reinforcing beam is provided with the flange edge of the reinforcing beam, and the two flange edges are welded with the inner wall, close to the inner side beam, of the middle.
According to the high-strength steel roll-in tailor-welded battery box boundary beam, the inner side beam and the middle beam are of an L-shaped integrated structure, and the outer side beam is welded with the middle beam in an open structure or a closed structure.
According to the high-strength steel roll-in tailor-welded battery box boundary beam, the inner side beam and the outer side beam are of an L-shaped integrated structure, and the middle beam is welded at the L-shaped bent parts of the outer side beam and the inner side beam in an attaching mode.
According to the high-strength steel roll-in tailor-welded battery box boundary beam, the inner side beam and the outer side beam are of a concave integrated structure, and the middle beam is welded in a groove formed by the outer side beam and the inner side beam in an attaching mode.
Above-mentioned high strength steel roll-in tailor-welded battery case boundary beam, additional strengthening is horizontal strengthening rib, and horizontal strengthening rib is equipped with the strengthening rib flange limit, and the strengthening rib flange limit closes with middle part roof beam inner wall seam.
Above-mentioned high strength steel roll-in tailor-welded battery case boundary beam, additional strengthening is for strengthening the cap, strengthens the cap and is II shape, strengthens cap lock welded middle part roof beam top.
The utility model has the main advantages as follows: 1. the battery box is made of high-strength steel or ultrahigh-strength steel materials through rolling and welding processes, so that the performance of the edge beam is improved, structural optimization and weight reduction are facilitated, and an excavated space is brought to the weight reduction and cost reduction of the battery box; 2. the edge beam structure is flexibly designed according to the stress characteristics of the edge beam, and the strength of the middle beam and the strength of the inner beam are improved through the design of the reinforcing structure; 3. the structure of the outside beam is beneficial to the energy absorption effect in collision, and the safety performance is improved.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a view in the direction A of FIG. 1;
fig. 3 is a schematic sectional view of a first embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of a second embodiment of the invention;
fig. 5 is a schematic cross-sectional view of a third embodiment of the present invention;
fig. 6 is a schematic sectional view of a fourth embodiment of the present invention;
fig. 7 is a schematic sectional view of a fifth embodiment of the present invention;
fig. 8 is a schematic sectional view of a sixth embodiment of the present invention.
The list of labels in the figure is: 1. the automobile body structure comprises an inner side beam, a middle beam, a lateral beam, 3-1 parts of an outer side beam, an automobile body mounting hole, 4 parts of a reinforcing beam, 4-1 parts of a reinforcing beam flange edge, 5 parts of a transverse reinforcing rib, 5-1 parts of a reinforcing rib flange edge, 6 parts of a reinforcing cap.
Detailed Description
Referring to fig. 1, the boundary beam is the main structure of battery case, the boundary beam adopts high strength steel or super high strength steel to pass through the tailor-welded preparation again after roll-in shaping processing. The side beam is inverted T-shaped and comprises a middle beam 2, an inner side beam 1 and an outer side beam 3, the inner side beam is used for connecting a bottom plate of a battery box, the middle beam is a main body of bearing force, the outer side beam is used for connecting a vehicle body, vehicle body mounting holes 3-1 are formed in the outer side beam, the middle beam, the inner side beam and the outer side beam are all rectangular cavity structures, and the height of the outer side beam is higher than that of the inner side beam. Based on the load requirement of boundary beam, the utility model discloses additional strengthening has been designed at the middle part roof beam.
Referring to fig. 3-6, the four embodiments of the present invention are that the reinforcing structure of the middle beam in the four embodiments all uses the reinforcing beam 4, and the reinforcing beam is located in the cavity of the middle beam and extends along the length direction of the boundary beam. The section of the reinforcing beam is equilateral or scalene with an opening at the large end, the closed surface of the reinforcing beam is welded with the inner wall of the middle beam close to the outer side beam, the lower end of the closed surface of the reinforcing beam is not lower than the upper wall of the outer side beam, the opening surface of the reinforcing beam is provided with a flange edge 4-1 of the reinforcing beam, and the length of the flange edge of the reinforcing beam is 7-12 mm. The flange edges of the two reinforcing beams are welded with the inner wall of the middle beam close to the inner side beam. Above-mentioned structure can improve middle part roof beam intensity and rigidity on the one hand, and the stiffening beam flange limit that extends downwards on the other hand has the effect of local enhancement inboard roof beam. The outer side beam can also play a role in absorbing energy when being connected with a vehicle body and colliding. The reinforcing beam is connected with the middle beam in a plug welding mode, and a long round hole for plug welding is formed in the wall of the middle beam close to the inner side beam, as shown in figure 2.
Referring to fig. 3 and 4, in the first and second embodiments of the present invention, the inner side beam and the middle beam are L-shaped integrated structures, and the outer side beam is connected to the middle beam in an arc welding manner in an open structure or a closed structure. When the outside beam is an open structure, the open part is provided with a flange edge convenient for welding, as shown in fig. 3. When the outer side beam is of a closed structure, a concave pit with an inward depression of 1-2mm is arranged at the laser welding position of the joint surface of the middle beam and the outer side beam, so that the influence of a laser welding seam on the binding surface is avoided.
Referring to fig. 5 and 6, in the third and fourth embodiments of the present invention, the inner side beam and the outer side beam are integrally formed, the inner side beam and the outer side beam of the third embodiment form a concave shape, and the middle beam is welded in the groove formed by the outer side beam and the inner side beam. The inner side beam and the middle beam form an L shape in the fourth embodiment, and the middle beam is welded outside the bent part of the L shape formed by the outer side beam and the inner side beam in an attaching mode. Both embodiments described above are advantageous for improving the stability of the bottom of the edge beam. The concave part at the bottom of the side beam of the fourth embodiment can improve the rigidity of the bottom.
Referring to fig. 7, the fifth embodiment of the present invention, the reinforcing structure of the present invention is a horizontal reinforcing rib 5, the horizontal reinforcing rib is provided with a reinforcing rib flange 5-1, the reinforcing rib flange is welded to the inner wall of the middle beam, and the structure mainly emphasizes on improving the strength of the upper part of the middle beam.
Referring to fig. 8, the sixth embodiment of the present invention, the reinforcing structure is a reinforcing cap 6, which is in a shape of pi, and the top of the middle beam is fastened to the reinforcing cap. The top surface of the middle beam 2 of the structure is equivalent to a transverse reinforcing rib, and the effect of improving the strength of the upper part of the middle beam is also achieved.
The utility model discloses can also make up the structure of above-mentioned each implementation wantonly to improve the purpose that reaches and the battery case is the adaptation through the structure of difference. It should be noted that, on the basis of the above-mentioned embodiments, structural improvements for different components also belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides a high strength steel roll-in tailor-welded battery case boundary beam, for falling T shape, includes middle part roof beam (2), inboard roof beam (1), outside roof beam (3), is equipped with automobile body mounting hole (3-1) on the outside roof beam, its characterized in that: the boundary beam is made of high-strength steel plates through rolling and welding, the middle beam, the inner side beam and the outer side beam are all of rectangular cavity structures, the height of the outer side beam is higher than that of the inner side beam, and the middle beam is provided with a reinforcing structure.
2. The high strength steel roll-formed tailor welded battery case boundary beam of claim 1, characterized in that: the reinforcing structure is a reinforcing beam (4), the reinforcing beam is positioned in a cavity of the middle beam, the section of the reinforcing beam is trapezoidal with an opening at a large end, the closed surface of the reinforcing beam is welded with the inner wall of the middle beam close to the outer side beam, the lower end of the closed surface of the reinforcing beam is not lower than the upper wall of the outer side beam, a flange edge (4-1) of the reinforcing beam is arranged on the open surface of the reinforcing beam, and two flange edges are welded with the inner wall of the middle beam close to the inner side beam.
3. The high strength steel roll-formed tailor welded battery case boundary beam of claim 2, characterized in that: the inner side beam and the middle beam are of an L-shaped integrated structure, and the outer side beam is welded with the middle beam in an open structure or a closed structure.
4. The high strength steel roll-formed tailor welded battery case boundary beam of claim 2, characterized in that: the inner side beam and the outer side beam are of an L-shaped integrated structure, and the middle beam is welded at the L-shaped bent parts of the outer side beam and the inner side beam in an attaching mode.
5. The high strength steel roll-formed tailor welded battery case boundary beam of claim 2, characterized in that: the inner side beam and the outer side beam are of a concave integrated structure, and the middle beam is welded in a groove formed by the outer side beam and the inner side beam in an attaching mode.
6. The high strength steel roll-formed tailor welded battery case boundary beam of claim 1, characterized in that: the reinforcing structure is a transverse reinforcing rib (5), the transverse reinforcing rib is provided with a reinforcing rib flange edge (5-1), and the reinforcing rib flange edge is welded with the inner wall of the middle beam.
7. The high strength steel roll-formed tailor welded battery case boundary beam of claim 1, characterized in that: the additional strengthening is for strengthening cap (6), strengthens the cap and is II shape, strengthens cap lock welded middle part roof beam top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021759544.3U CN213676352U (en) | 2020-08-21 | 2020-08-21 | High-strength steel roll-in tailor-welded battery box boundary beam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021759544.3U CN213676352U (en) | 2020-08-21 | 2020-08-21 | High-strength steel roll-in tailor-welded battery box boundary beam |
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| CN213676352U true CN213676352U (en) | 2021-07-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113937396A (en) * | 2021-08-24 | 2022-01-14 | 无锡市源隆金属制品有限公司 | New energy automobile blade battery tray frame beam and production process thereof |
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2020
- 2020-08-21 CN CN202021759544.3U patent/CN213676352U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113937396A (en) * | 2021-08-24 | 2022-01-14 | 无锡市源隆金属制品有限公司 | New energy automobile blade battery tray frame beam and production process thereof |
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