CN109292003B - Engine compartment side edge beam structure - Google Patents
Engine compartment side edge beam structure Download PDFInfo
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- CN109292003B CN109292003B CN201811456850.7A CN201811456850A CN109292003B CN 109292003 B CN109292003 B CN 109292003B CN 201811456850 A CN201811456850 A CN 201811456850A CN 109292003 B CN109292003 B CN 109292003B
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- engine compartment
- plate
- pillar
- compartment side
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/082—Engine compartments
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention provides an engine compartment side edge beam structure which comprises an engine compartment side edge beam inner plate, an engine compartment side edge beam outer plate, an A column reinforcing plate, an A column upper frame reinforcing plate, an A column inner plate, an engine compartment cover plate hinge mounting plate and a side wall outer plate, wherein the engine compartment side edge beam outer plate and the engine compartment side edge beam inner plate are welded in a butt welding manner and then enclose a cavity; the engine compartment cover plate hinge mounting plate is arranged on the engine compartment side edge beam inner plate; the connecting end of the outer plate of the side edge beam of the engine compartment is welded with the upper frame reinforcing plate of the A column and the reinforcing plate of the A column; the mounting end of the inner plate of the side edge beam of the engine compartment is welded with the upper frame reinforcing plate of the column A and the reinforcing plate of the column A; the pillar A inner plate is welded with one side of the pillar A reinforcing plate and one side of the pillar A upper frame reinforcing plate, and the side wall outer plate is welded with the other side of the pillar A reinforcing plate and the other side of the pillar A upper frame reinforcing plate. The engine compartment side beam structure can better avoid the problem that the side wall outer plate is easy to crack due to overlarge stress.
Description
Technical Field
The invention relates to the technical field of vehicle bodies and vehicle body accessories of vehicles, in particular to a side edge beam structure of an engine compartment.
Background
In the case of a vehicle body in white, the forces such as the weight and the acceleration of the whole automobile are mainly transmitted to the whole body in white through the mounting points of the suspension, the subframe and the like on the automobile body, which makes the metal plates of the mounting points of the suspension and the subframe on the automobile body bear the largest force, and causes the problem that the mounting points of the suspension and the subframe and the positions near the mounting points of the suspension and the subframe are most prone to cracking. Therefore, in the design of the vehicle body, the structural design of the mount positions of the suspension and the subframe is particularly important.
For the car body, the car body is formed by splicing a plurality of different single pieces through welding modes such as spot welding, secondary welding and the like. How to reasonably divide the parts and how to reasonably splice and weld, and what welding sequence is adopted to realize the connection between the parts is very important.
As shown in fig. 1 to 4, the engine compartment side sill structure of the vehicle in the prior art includes a side wall outer panel 18, an a pillar inner panel 17, an engine compartment side sill outer panel rear section 12, an engine compartment side sill outer panel front section 11, an engine compartment side sill inner panel front section 13, an engine compartment side sill inner panel rear section 14, an engine compartment cover hinge mounting plate 15, and an engine compartment side sill inner panel connecting plate 16. The front section of the outer plate of the side edge beam of the engine compartment and the rear section of the outer plate of the side edge beam of the engine compartment belong to a left side sub-assembly of the engine compartment; the engine compartment side edge beam inner plate rear section and the engine compartment cover hinge mounting plate belong to a front windshield cross beam assembly; the side wall outer plate belongs to a side wall assembly.
For the eight pieces shown in the figure, the order of the upper pieces at the time of welding is from front to back: the front section 11 of the engine compartment side edge beam outer plate and the front section 13 of the engine compartment side edge beam inner plate are welded firstly, then the rear section of the engine compartment side edge beam inner plate, the hinge mounting plate of the engine compartment cover and the upper part of the A column inner plate are welded, then the upper part of the side wall inner plate is welded, and finally the rear section of the engine compartment side edge beam outer plate and the upper part of the connecting plate of the engine compartment side edge beam inner plate are welded.
Because the engine compartment side rail outer plate rear section 12 is connected with the side rail outer plate 18, and the side rail outer plate 18 is difficult to form because of complicated shape, generally, a plate with good formability and low strength grade is selected, so that the force from the suspension mounting point can be transmitted to the engine compartment side rail outer plate rear section through the engine compartment side rail outer plate front section and the engine compartment side rail inner plate front section, and is transmitted to the side rail outer plate with low strength, the force borne by the side rail outer plate 18 is large, the side rail outer plate 18 is easy to crack, and the strength of the engine compartment side rail structure is poor.
Disclosure of Invention
The invention aims to provide an engine compartment side edge beam structure to solve the technical problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
an engine compartment side beam structure comprises an engine compartment side beam inner plate, an engine compartment side beam outer plate, an A-column reinforcing plate, an A-column upper frame reinforcing plate, an A-column inner plate, an engine compartment cover plate hinge mounting plate and a side wall outer plate, wherein the engine compartment side beam outer plate and the engine compartment side beam inner plate are welded in a butt joint mode and then enclose a cavity; the engine compartment cover plate hinge mounting plate is arranged on the engine compartment side edge beam inner plate; the connecting end of the outer plate of the side edge beam of the engine compartment is welded with the A-pillar upper frame reinforcing plate and the A-pillar reinforcing plate; the mounting end of the inner plate of the side edge beam of the engine compartment is welded with the A column upper frame reinforcing plate and the A column reinforcing plate; the pillar A inner plate is welded to one side of the pillar A reinforcing plate, the pillar A inner plate is also welded to one side of the pillar A upper frame reinforcing plate, the side wall outer plate is welded to the other side of the pillar A reinforcing plate, and the side wall outer plate is also welded to the other side of the pillar A upper frame reinforcing plate.
Preferably, the engine compartment cover hinge mounting plate is arranged on one side of the engine compartment side sill inner plate close to the engine compartment side sill outer plate; the engine compartment cover hinge mounting plate is located in the cavity.
Preferably, the engine compartment cover plate hinge mounting plate is welded and connected with the engine compartment side edge beam inner plate.
Preferably, the side wall outer plate and the A column upper frame reinforcing plate are connected through laser welding and welding, and the side wall outer plate and the A column reinforcing plate are connected through laser welding and welding.
Preferably, the engine compartment side sill outer panel and the a-pillar upper frame reinforcing panel and the a-pillar reinforcing panel are respectively connected by spot welding.
Preferably, the a-pillar upper frame reinforcing plate is made of boron steel.
Preferably, the a-pillar reinforcement sheet is made of cold rolled steel.
The invention has the beneficial effects that:
according to the engine compartment side beam structure, the engine compartment side beam inner plate is in welded connection with the column A reinforcing plate and the column A upper frame reinforcing plate, and the engine compartment side beam outer plate is in welded connection with the column A reinforcing plate and the column A upper frame reinforcing plate, so that the force transmitted by the engine compartment side beam outer plate and the engine compartment side beam inner plate acts on the column A upper frame reinforcing plate and the column A reinforcing plate instead of the side frame outer plate, and the problem that the side frame outer plate is easy to crack due to overlarge stress in the prior art is well solved.
Drawings
In order to more clearly describe the embodiments of the present application or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, and the embodiments of the present invention will be further described in detail with reference to the drawings, wherein
FIG. 1 is a schematic illustration of a prior art engine compartment side sill structure;
FIG. 2 is a cross-sectional view taken at D-D in FIG. 1;
FIG. 3 is a cross-sectional view taken at E-E in FIG. 1;
FIG. 4 is a cross-sectional view of the junction of the inner plate connecting plate of the side sill of the engine compartment and the outer plate of the side wall;
FIG. 5 is a schematic illustration of a side sill structure of an engine compartment provided in accordance with an embodiment of the present invention;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a schematic view of an engine compartment side rail outer panel coupled to an A-pillar upper frame stiffener and an A-pillar stiffener, according to an embodiment of the present disclosure;
FIG. 8 is another schematic view of an engine compartment side rail outer panel coupled to an A-pillar upper frame stiffener and an A-pillar stiffener, according to an embodiment of the present disclosure;
FIG. 9 is a schematic illustration of an engine compartment side sill structure mounted to a vehicle body in accordance with an embodiment of the present invention;
FIG. 10 is a cross-sectional view taken at B-B of FIG. 9;
FIG. 11 is an enlarged view at C of FIG. 10;
FIG. 12 is another schematic view of the side sill structure of the engine compartment provided in accordance with the exemplary embodiment of the present invention as mounted to the vehicle body;
fig. 13 is a further schematic view of the side sill structure of the engine compartment according to the exemplary embodiment of the present invention when mounted to the vehicle body.
In the drawings, the reference numbers:
11. front section 12 of outer plate of side edge beam of engine compartment and rear section of outer plate of side edge beam of engine compartment
13. Engine compartment side edge beam inner plate front section 14 and engine compartment side edge beam inner plate rear section
15. Engine compartment cover plate hinge mounting plate 16 and engine compartment side edge beam inner plate connecting plate
17. A column inner plate 18, side wall outer plate 21 and engine compartment side edge beam outer plate
31. Engine compartment side edge beam inner plate 32 and engine compartment cover plate hinge mounting plate
33. Cavity 41, A-pillar upper frame reinforcing plate 51, A-pillar reinforcing plate 61 and A-pillar inner plate
71. Side wall outer plate 81 and suspension mounting point
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description will be provided with reference to specific embodiments.
As shown in fig. 5 to 13, an engine compartment side beam structure according to an embodiment of the present invention includes an engine compartment side beam inner panel 31, an engine compartment side beam outer panel 21, an a-pillar reinforcement panel 51, an a-pillar upper frame reinforcement panel 41, an a-pillar inner panel 61, an engine compartment cover panel hinge mounting panel 32, and a side wall outer panel 71, where the engine compartment side beam outer panel 21 and the engine compartment side beam inner panel 31 are welded to each other and enclose a cavity 33; the engine compartment cover plate hinge mounting plate 32 is arranged on the engine compartment side edge beam inner plate 31; the connecting end of the outer plate 21 of the side edge beam of the engine compartment is welded with the A-pillar upper frame reinforcing plate 41 and the A-pillar reinforcing plate 51; the mounting end of the engine compartment side edge beam inner plate 31 is welded and connected with the A-pillar upper frame reinforcing plate 41 and the A-pillar reinforcing plate 51; the pillar A inner plate 61 is welded with one side of the pillar A reinforcing plate, the pillar A inner plate is also welded with one side of the pillar A upper frame reinforcing plate, the side wall outer plate 71 is welded with the other side of the pillar A reinforcing plate, and the side wall outer plate is also welded with the other side of the pillar A upper frame reinforcing plate.
According to the engine compartment side beam structure provided by the embodiment of the invention, the engine compartment side beam inner plate 31 is welded with the A-column reinforcing plate 51 and the A-column upper frame reinforcing plate 41, and the engine compartment side beam outer plate 21 is welded with the A-column reinforcing plate 51 and the A-column upper frame reinforcing plate 41, so that the force transmitted by the engine compartment side beam outer plate and the engine compartment side beam inner plate acts on the A-column upper frame reinforcing plate 41 and the A-column reinforcing plate 51 instead of acting on the side wall outer plate, and the problem that the side wall outer plate is easy to crack due to overlarge stress in the prior art is well solved. Meanwhile, the strength of the A-pillar upper frame reinforcing plate 41 and the strength of the A-pillar reinforcing plate 51 are generally higher than that of the side wall outer plate, so that the strength of the side edge beam structure of the engine compartment is higher, the bearing force is higher, and the safety of passengers can be effectively protected; and the engine compartment side edge beam outer plate replaces the rear section of the engine compartment side edge beam outer plate and the front section of the engine compartment side edge beam outer plate in the prior art, and the engine compartment side edge beam inner plate replaces the front section of the engine compartment side edge beam inner plate, the rear section of the engine compartment side edge beam inner plate and an engine compartment side edge beam inner plate connecting plate in the prior art, so that the number of parts is effectively reduced, the number of dies is reduced, the number of welding spots, welding clamps and the like is reduced, and the cost is further well reduced.
As shown in fig. 6, the hood hinge mounting plate 32 may be provided on the side of the hood side sill inner panel 31 adjacent to the hood side sill outer panel 21; the engine compartment cover hinge mounting plate 32 is positioned in the cavity 33, so that the engine compartment cover hinge mounting plate is prevented from occupying the external space, and arrangement of other components is facilitated.
In order to make the connection between the engine compartment cover hinge mounting plate 32 and the engine compartment side sill inner panel 31 firm and reliable and to improve the strength of the engine compartment side sill structure, the engine compartment cover hinge mounting plate 32 and the engine compartment side sill inner panel 31 may be welded.
Specifically, the side wall outer plate 71 and the a-pillar upper frame reinforcing plate 41 and the side wall outer plate 71 and the a-pillar reinforcing plate 51 are welded and connected through laser welding, so that the connection strength between the side wall outer plate and the a-pillar upper frame reinforcing plate and the connection strength between the side wall outer plate and the a-pillar upper frame reinforcing plate are high, and the strength of the side sill structure of the engine compartment is high. It can be understood that, as shown in fig. 10, since the welding gun is blocked by the a-pillar inner panel, the welded connection between the quarter outer panel and the a-pillar upper frame reinforcing plate and between the quarter outer panel and the a-pillar reinforcing plate cannot be achieved by spot welding. The side wall outer plate and the A column upper frame reinforcing plate and the A column reinforcing plate can be welded by plug welding, but according to statistics, one plug welding is only equivalent to 0.67 spot welding, so that the connection strength of the side wall outer plate and the A column upper frame reinforcing plate after welding and the A column reinforcing plate is poor, and the problems can be better avoided by adopting laser welding for connection.
In order to facilitate the welding between the engine compartment side sill outer panel 21 and the a-pillar upper frame reinforcement panel 41 and the a-pillar reinforcement panel 51, the engine compartment side sill outer panel 21 and the a-pillar upper frame reinforcement panel 41 and the a-pillar reinforcement panel 51 may be welded by spot welding, respectively.
Further, the a-pillar upper frame reinforcing plate 41 may be made of boron steel, and may preferably be high-strength boron steel B1500 HS.
Specifically, the a-pillar reinforcement plate 51 is made of cold-rolled steel, and may preferably be cold-rolled steel H420 LA.
The embodiment of the invention provides an engine compartment side edge beam structure, wherein an A column inner plate 61, an engine compartment side edge beam inner plate 31 and an engine compartment cover plate hinge mounting plate 32 of the engine compartment side edge beam structure belong to a lower vehicle body assembly; the engine compartment side edge beam outer plate 21 belongs to a side wall inner plate assembly; the side wall outer plate 71 belongs to a side wall outer plate assembly, when an upper part is welded, the A column inner plate 61, the engine compartment side edge beam inner plate 31 and the engine compartment cover plate hinge mounting plate 32 are welded well, then the engine compartment side edge beam outer plate 21 is welded, and finally the side wall outer plate 71 is welded.
When engine compartment side roof beam planking back end is connected with the side wall planking among the prior art, when engine compartment side roof beam inner panel connecting plate is connected with the side wall planking, because one side has the cavity for welder can not beat, lead to the spot welding unable realization, can only adopt the form of plug welding to weld, thereby lead to engine compartment side roof beam planking back end, the joint strength between engine compartment side roof beam inner panel connecting plate and the side wall planking is relatively poor, and then make the intensity of engine compartment side roof beam structure relatively poor. In the invention, the engine compartment side edge beam outer plate and the engine compartment side edge beam inner plate can be connected with the A-pillar upper frame reinforcing plate 41 and the A-pillar reinforcing plate 51 through spot welding, so that the connection strength between all parts is higher, and simultaneously, the strength of the A-pillar upper frame reinforcing plate 41 and the strength of the A-pillar reinforcing plate 51 are higher than that of the side wall outer plate, so that the strength of the engine compartment side edge beam structure is higher, and the problems are better solved.
According to the side edge beam structure of the engine compartment, the A column upper frame reinforcing plate and the A column reinforcing plate are key structural members on a white body, and play an important role in force transmission during head-on collision, rigidity of the whole vehicle and the like. Therefore, all select the great panel of intensity in the design of material, the high strength boron steel B1500HS that intensity grade is very high can be selected for use to A post upper ledge reinforcing plate material, and the cold-rolled steel H420LA that intensity grade is higher can be selected for use to A post reinforcing plate's material.
As shown in fig. 12, in the event of a frontal collision, the force transmitted from the engine room side sill inner panel 31 and the engine room side sill outer panel 21 can be transmitted well through the two high-strength plates, the a-pillar upper frame reinforcement plate 41 and the a-pillar reinforcement plate 51, as shown by the arrow direction in fig. 12, and the force can be dispersed to the vehicle body. In the prior art, when frontal collision occurs, force is transmitted to the side wall outer plate with poor strength grade, so that the side wall outer plate can deform rapidly, the safety of passengers cannot be effectively protected, and the force cannot be effectively transmitted.
On the other hand, in the whole vehicle running process, the gravity and the acceleration of the whole vehicle are transmitted to the vehicle body through the mounting points of the suspension and the auxiliary frame. In the case of the engine compartment side sill structure according to the embodiment of the present invention, the force transmitted to the engine compartment side sill outer panel 21 and the engine compartment side sill inner panel 31 through the suspension mounting points 81 is, as shown by the arrow direction in fig. 13, the engine compartment side sill inner panel 31 and the engine compartment side sill outer panel 21 press against the a-pillar upper frame reinforcement panel 41, and since the engine compartment side sill outer panel 21 and the engine compartment side sill inner panel 21 are connected to the a-pillar upper frame reinforcement panel 41 and the a-pillar reinforcement panel 51 having extremely high strength in the present invention, the force transmitted from the engine compartment side sill inner panel and the engine compartment side sill outer panel can be well received. The rear section of the engine compartment side edge beam outer plate and the engine compartment side edge beam inner plate connecting plate are connected by the side wall outer plate with extremely weak strength, so that the risk of cracking of the side wall outer plate in the prior art is high, and the problem is well avoided by the engine compartment side edge beam structure provided by the embodiment of the invention.
The above are only preferred embodiments of the present invention, it should be noted that these examples are only for illustrating the present invention and not for limiting the scope of the present invention, and after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalents also fall within the scope of the claims appended to the present application.
Claims (7)
1. The engine compartment side beam structure is characterized by comprising an engine compartment side beam inner plate, an engine compartment side beam outer plate, an A-column reinforcing plate, an A-column upper frame reinforcing plate, an A-column inner plate, an engine compartment cover plate hinge mounting plate and a side wall outer plate, wherein the engine compartment side beam outer plate and the engine compartment side beam inner plate are welded in a butt joint mode and then enclose a cavity; the engine compartment cover plate hinge mounting plate is arranged on the engine compartment side edge beam inner plate; the connecting end of the outer plate of the side edge beam of the engine compartment is welded with the A-pillar upper frame reinforcing plate and the A-pillar reinforcing plate; the mounting end of the inner plate of the side edge beam of the engine compartment is welded with the A column upper frame reinforcing plate and the A column reinforcing plate; the pillar A inner plate is welded to one side of the pillar A reinforcing plate, the pillar A inner plate is also welded to one side of the pillar A upper frame reinforcing plate, the side wall outer plate is welded to the other side of the pillar A reinforcing plate, and the side wall outer plate is also welded to the other side of the pillar A upper frame reinforcing plate.
2. The engine compartment side sill structure of claim 1, wherein said engine compartment cover hinge mounting plate is disposed on a side of said engine compartment side sill inner panel adjacent said engine compartment side sill outer panel; the engine compartment cover hinge mounting plate is located in the cavity.
3. The engine compartment side sill structure of claim 2, wherein said engine compartment cover hinge mounting plate is welded to said engine compartment side sill inner panel.
4. The engine compartment side sill structure of claim 1, wherein the quarter outer panel and the a-pillar upper frame reinforcement panel and the quarter outer panel and the a-pillar reinforcement panel are connected by laser welding, respectively.
5. The engine compartment side sill structure according to claim 1, wherein the engine compartment side sill outer panel and the a-pillar upper frame reinforcement panel and the a-pillar reinforcement panel are welded together by spot welding, respectively.
6. The engine compartment side sill structure of claim 1, wherein the a-pillar upper frame reinforcement plate is made of boron steel.
7. The engine compartment side sill structure of any of claims 1 to 6, wherein the A-pillar reinforcement plate is made of cold rolled steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811456850.7A CN109292003B (en) | 2018-11-30 | 2018-11-30 | Engine compartment side edge beam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811456850.7A CN109292003B (en) | 2018-11-30 | 2018-11-30 | Engine compartment side edge beam structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109292003A CN109292003A (en) | 2019-02-01 |
| CN109292003B true CN109292003B (en) | 2019-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811456850.7A Active CN109292003B (en) | 2018-11-30 | 2018-11-30 | Engine compartment side edge beam structure |
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| CN (1) | CN109292003B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5151869B2 (en) * | 2008-09-30 | 2013-02-27 | トヨタ車体株式会社 | Automobile front pillar structure |
| JP6131089B2 (en) * | 2013-04-15 | 2017-05-17 | ユニプレス株式会社 | Front body structure of automobile |
| CN205971496U (en) * | 2016-07-26 | 2017-02-22 | 上海汽车集团股份有限公司 | Engine compartment roof side rail of Z type bend type energy -absorbing |
| CN206374831U (en) * | 2016-12-29 | 2017-08-04 | 上汽通用五菱汽车股份有限公司 | A kind of front deck top beam assembly |
| CN207984970U (en) * | 2018-03-30 | 2018-10-19 | 长城汽车股份有限公司 | Enging cabin roof side rail and vehicle |
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2018
- 2018-11-30 CN CN201811456850.7A patent/CN109292003B/en active Active
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| CN109292003A (en) | 2019-02-01 |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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