CN115447672B - Automobile engine cabin structure and automobile - Google Patents
Automobile engine cabin structure and automobile Download PDFInfo
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- CN115447672B CN115447672B CN202211306292.2A CN202211306292A CN115447672B CN 115447672 B CN115447672 B CN 115447672B CN 202211306292 A CN202211306292 A CN 202211306292A CN 115447672 B CN115447672 B CN 115447672B
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- 238000000034 method Methods 0.000 claims abstract description 22
- 230000008569 process Effects 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims description 40
- 239000002184 metal Substances 0.000 claims description 40
- 238000003466 welding Methods 0.000 claims description 39
- 230000002787 reinforcement Effects 0.000 claims description 31
- 238000005266 casting Methods 0.000 claims description 22
- 230000003014 reinforcing effect Effects 0.000 claims description 21
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 abstract description 4
- 238000000429 assembly Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 18
- 229910052782 aluminium Inorganic materials 0.000 description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 18
- 239000010959 steel Substances 0.000 description 18
- 238000013461 design Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- -1 specifically Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Classifications
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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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- 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
- B62D25/16—Mud-guards or wings; Wheel cover panels
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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 automobile engine room structure and an automobile, wherein the engine room structure comprises a wheel cover assembly, a cross beam assembly and a longitudinal beam assembly; the wheel cover assembly comprises a left front wheel cover assembly and a right front wheel cover assembly, and the longitudinal beam assembly comprises a left front longitudinal beam assembly and a right front longitudinal beam assembly; the left front longitudinal beam assembly and the right front longitudinal beam assembly are arranged side by side and are respectively positioned on two sides of the central axis F of the frame; the bottom of the left front wheel cover assembly is fixedly connected to the left front longitudinal beam assembly, and the bottom of the right front wheel cover assembly is fixedly connected to the right front longitudinal beam assembly; one end of the beam assembly is fixedly connected to the left front wheel cover assembly, and the other end of the beam assembly is fixedly connected to the right front wheel cover assembly; an engine room is formed in the area where the cross beam assembly, the wheel cover assembly and the longitudinal beam assembly are connected; the automobile engine compartment structure provided by the invention has the advantages of strong anti-collision capability, simple structure and process, and strong universality, and can effectively improve the torsional rigidity of the left and right longitudinal beam assemblies.
Description
Technical Field
The invention belongs to the technical field of automobile engine cabin structures, and particularly relates to an automobile engine cabin structure.
Background
With the continuous development of automobile technology, the requirements of consumers on NVH and safety performance of automobiles are increasingly improved, and automobile safety has become a reference factor for consumers to purchase vehicles; therefore, the good safety performance/NVH performance can improve the purchase rate and the selling price of the whole vehicle.
When an automobile is impacted in front, the engine room structure of the automobile body absorbs a certain impact energy and simultaneously slows down the movement degree of passengers in the automobile, and meanwhile, the engine room structure needs to be strong enough and deformation resistant, and is very important for ensuring enough living space of the passengers in the rear section of the collision process.
The engine cabin assembly of the bearing type white car body is very important, and the engine cabin structure assembly is mainly an installation carrier of an engine (or motor driving) system, a chassis suspension system, a gearbox system, a radiator and the like, bears severe various load actions and is also an installation carrier of accessories such as a car water tank, a battery, a liquid kettle and the like; further, the automobile body engine compartment assembly mainly comprises a headlight beam, a water tank beam, a front wheel cover outer plate, a left front longitudinal beam inner plate, a right front longitudinal beam outer plate, a reinforcing plate, an anti-collision beam, an energy absorption box, a front baffle assembly and various small brackets, and the front part is required to absorb collision energy and ensure the collision force value transmission of the passenger compartment.
The front baffle assembly of the automobile body is called as a firewall assembly, is a partition surface of the passenger cabin and the engine cabin, is a connecting piece for connecting the engine cabin assembly with the floor assembly and the side wall assembly, and is an installation carrier of an air conditioner accessory, a steering gear accessory, a front windshield glass, a windscreen wiper, a foot pedal and a middle instrument panel beam; the front baffle assembly mainly comprises a front baffle body, a front baffle beam, a steering column mounting bracket, a water flow groove inner plate, a water flow groove outer plate and the like.
Meanwhile, the front cabin assembly is an important component part of the whole vehicle body framework, and plays a very critical role in torsional rigidity/mode of the whole vehicle body framework; good front cabin assembly design is important for body-in-white/whole vehicle torsional stiffness and mode and crash capability transfer.
Technical problems in the structural design of an engine compartment based on the vehicle body are not solved; there is therefore an urgent need to seek an effective solution to the above problems.
Disclosure of Invention
The invention aims at overcoming the defects in the prior art, and provides an automobile engine compartment structure and an automobile so as to meet the requirements of NVH and safety performance of the existing automobile engine compartment.
The invention provides an automobile engine compartment structure, which comprises a wheel cover assembly, a cross beam assembly and a longitudinal beam assembly; the wheel cover assembly comprises a left front wheel cover assembly and a right front wheel cover assembly, and the longitudinal beam assembly comprises a left front longitudinal beam assembly and a right front longitudinal beam assembly; the left front longitudinal beam assembly and the right front longitudinal beam assembly are arranged side by side and are respectively positioned on two sides of the central axis F of the frame; the bottom of the left front wheel cover assembly is fixedly connected to the left front longitudinal beam assembly, and the bottom of the right front wheel cover assembly is fixedly connected to the right front longitudinal beam assembly; one end of the beam assembly is fixedly connected to the left front wheel cover assembly, and the other end of the beam assembly is fixedly connected to the right front wheel cover assembly; an engine compartment is formed in the area where the cross beam assembly, the wheel cover assembly and the longitudinal beam assembly are connected.
Further, the engine compartment structure further comprises a longitudinal beam wheel cover connecting assembly and a wheel cover upper reinforcing beam, wherein the longitudinal beam wheel cover connecting assembly comprises a left front longitudinal beam wheel cover connecting assembly and a right front longitudinal beam wheel cover connecting assembly, and the wheel cover upper reinforcing beam comprises a left front wheel cover upper reinforcing beam and a right front wheel cover upper reinforcing beam; the left front wheel cover upper stiffening beam is fixedly connected to the upper surface of the left front wheel cover assembly, and the right front wheel cover upper stiffening beam is fixedly connected to the upper surface of the right front wheel cover assembly; the bottom of the left front longitudinal beam wheel cover connecting assembly is fixedly connected to the front end of the left front longitudinal beam assembly, and the top of the left front longitudinal beam wheel cover connecting assembly is fixedly connected to the bottom of the stiffening beam on the left front wheel cover; the bottom of the right front longitudinal beam wheel cover connecting assembly is fixedly connected to the front end of the right front longitudinal beam assembly, and the top of the right front longitudinal beam wheel cover connecting assembly is fixedly connected to the bottom of the stiffening beam on the right front wheel cover.
Further, the beam assembly comprises an upper beam and a lower beam, the upper beam and the lower beam are respectively formed integrally through metal, and the connecting surface of the upper beam and the lower beam is a concave surface; the upper cross beam and the lower cross beam are fixedly connected together through respective concave surfaces, so that a cross beam body is formed; a cavity structure with a closed side wall is formed in the beam body.
Further, the beam assembly also comprises a beam left connecting bracket and a beam right connecting bracket which are respectively formed integrally through metal; the beam left connecting bracket is fixedly connected to one end of the left side of the beam body, and the beam right connecting bracket is fixedly connected to one end of the right side of the beam body; the beam assembly is fixedly connected with the left front wheel cover assembly through a beam left connecting bracket, and the beam assembly is fixedly connected with the right front wheel cover assembly through a beam right connecting bracket.
Further, the left front wheel cover assembly comprises a left front wheel cover, a left front wheel cover first front connecting plate and a left front wheel cover second front connecting plate, the left front wheel cover is integrally formed through metal, and the left front wheel cover first front connecting plate and the left front wheel cover second front connecting plate are integrally formed through metal respectively; the left front wheel cover first front connecting plate and the left front wheel cover second front connecting plate are fixedly connected with the lap joint surface of the left front wheel cover through a self-piercing riveting process or a welding process respectively;
further, the right front wheel cover assembly comprises a right front wheel cover, a right front wheel cover first front connecting plate and a right front wheel cover second front connecting plate, wherein the right front wheel cover is integrally formed through metal, and the right front wheel cover first front connecting plate and the right front wheel cover second front connecting plate are respectively integrally formed through metal; the first front connecting plate of the right front wheel cover and the second front connecting plate of the right front wheel cover are fixedly connected with the lap joint surface of the right front wheel cover through a self-piercing riveting process or a welding process respectively.
Further, the left front longitudinal beam wheel cover connecting assembly comprises a left front longitudinal beam wheel cover first connecting beam, a left front longitudinal beam wheel cover second connecting beam and a left front longitudinal beam wheel cover third connecting beam; the left front longitudinal beam wheel cover first connecting beam, the left front longitudinal beam wheel cover second connecting beam and the left front longitudinal beam wheel cover third connecting beam are respectively formed integrally through metal; the first connecting beam of the left front longitudinal beam wheel cover, the second connecting beam of the left front longitudinal beam wheel cover and the third connecting beam of the left front longitudinal beam wheel cover are welded by spot welding or CO 2 The left front longitudinal beam wheel cover connecting assembly is formed by welding, riveting, bolting or casting and integrally forming and fixedly connecting together; the first connecting beam of the left front longitudinal beam wheel cover and the second connecting beam of the left front longitudinal beam wheel cover are fixedly connected together through concave surfaces respectively, so that a cavity structure is formed;
further, the right front longitudinal beam wheel cover connecting assembly comprises a right front longitudinal beam wheel cover first connecting beam, a right front longitudinal beam wheel cover second connecting beam and a right front longitudinal beam wheel cover third connecting beam; right front side frame wheel cover first connection beam and right front side frame wheel cover second connectionThe beam and the third connecting beam of the right front longitudinal beam wheel cover are respectively formed integrally by metal; the first connecting beam of the right front longitudinal beam wheel cover, the second connecting beam of the right front longitudinal beam wheel cover and the third connecting beam of the right front longitudinal beam wheel cover are welded by spot welding or CO 2 Welding or riveting or bolting or casting into a whole to be fixedly connected together, thereby forming a right front longitudinal beam wheel cover connecting assembly; the first connecting beam of the right front longitudinal beam wheel cover and the second connecting beam of the right front longitudinal beam wheel cover are fixedly connected together through concave surfaces respectively, so that a cavity structure is formed.
Further, the left front wheel cover upper reinforcement beam comprises a left front wheel cover upper reinforcement beam outer plate and a left front wheel cover upper reinforcement beam inner plate; the left front wheel cover upper stiffening beam outer plate and the left front wheel cover upper stiffening beam inner plate are respectively formed integrally through metal; the left front wheel cover upper stiffening beam outer plate and the left front wheel cover upper stiffening beam inner plate are fixedly connected together through welding or bolts or riveting or casting integrated forming, so that an integrated structure is formed.
Further, the right front wheel cover upper reinforcement beam comprises a right front wheel cover upper reinforcement beam outer plate and a right front wheel cover upper reinforcement beam inner plate; the right front wheel cover upper stiffening beam outer plate and the right front wheel cover upper stiffening beam inner plate are respectively formed integrally through metal; the outer stiffening beam plate on the right front wheel cover and the inner stiffening beam plate on the right front wheel cover are fixedly connected together through welding or bolts or riveting or casting integrated forming, so that an integrated structure is formed.
Further, the engine compartment structure further comprises a front baffle assembly and a protective cross beam; the front baffle assembly being formed by spot welding or CO 2 The welding, riveting, bolting or casting are integrally formed, fixedly connected with the wheel cover assembly, the cross beam assembly and the longitudinal beam assembly respectively, and are positioned at the rear side of the engine compartment; one end of the protection cross beam is fixedly connected to the front end of the left front longitudinal beam assembly, and the other end of the protection cross beam is fixedly connected to the front end of the right front longitudinal beam assembly and is positioned on the front side of the engine compartment.
Further, one end of the cross beam assembly is fixedly connected to the left front wheel cover assembly through a plurality of connecting bolts or welding, and the other end of the cross beam assembly is fixedly connected to the right front wheel cover assembly through a plurality of connecting bolts or welding.
Further, the wheel cover assembly, the cross beam assembly and the longitudinal beam assembly are respectively provided with a reinforcing rib or a supporting plate or a patch plate or a cover plate, and the supporting plate or the patch plate or the cover plate is a metal plate.
Further, the left and right front side rail assemblies are symmetrical about the XZ plane of the frame, respectively.
Further, the left front wheel cover assembly and the right front wheel cover assembly are symmetrical with the XZ plane of the frame respectively.
Further, the left front side rail wheel cover connecting assembly and the right front side rail wheel cover connecting assembly are symmetrical with the XZ plane of the frame respectively.
Further, the left front wheel cover upper reinforcing beam and the right front wheel cover upper reinforcing beam are respectively symmetrical with the XZ plane of the frame.
Correspondingly, the invention further provides an automobile, which comprises an automobile engine room structure, wherein the automobile engine room structure is the automobile engine room structure.
The invention provides an automobile engine cabin structure which has obvious improvement on torsional rigidity, modal and dynamic rigidity of a white body framework assembly and greatly enhances the anti-collision deformation capacity of a front cabin; taking a certain compact car as an example, the front cabin assembly with the structure realizes that the torsional rigidity of the white car body framework assembly is improved by 7%, the modal is improved by 2Hz, the safety collision performance is improved by 10%, the front collision safety performance is obviously improved, the collision energy can be well transmitted, and the passenger cabin and the battery pack can be effectively protected; meanwhile, a plurality of mounting points can be added to the engine compartment structure, mounting points are provided for accessories of different engine compartments, the arrangement structure is simple, the connection process is simple, and the implementation is convenient.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of the upper beam structure of the present invention;
FIG. 2 is a schematic view of the lower beam structure of the present invention;
FIG. 3 is a schematic view of a left connecting bracket of the cross beam of the present invention;
FIG. 4 is a schematic view of a right connecting bracket of the cross beam of the present invention;
FIG. 5 is a schematic view of a beam assembly of the present invention;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5 in accordance with the present invention;
FIG. 7 is a schematic view of a left front wheel cover upper reinforcement beam outer panel of the present invention;
FIG. 8 is a schematic view of the inner reinforcement beam panel on the left front wheel cover of the present invention;
FIG. 9 is a schematic view of the left front wheel cover of the present invention;
FIG. 10 is a front left front wheel cover first front web of the present invention;
FIG. 11 is a front left wheel cover second front web of the present invention;
FIG. 12 is a left front rail wheel cover first attachment beam of the present invention;
FIG. 13 is a left front rail wheel cover second attachment beam of the present invention;
FIG. 14 is a left front rail wheel cover third attachment beam of the present invention;
FIG. 15 is a left side view of the left front rail wheel cover attachment assembly of the present invention;
FIG. 16 is a right side view of the left front rail wheel cover attachment assembly of the present invention;
FIG. 17 is a cross-sectional view taken along line B-B of FIG. 15 in accordance with the present invention;
FIG. 18 is a schematic view of a left front wheel cover assembly of the present invention;
FIG. 19 is a schematic view of a nacelle structure of the present invention;
FIG. 20 is a second schematic view of the nacelle structure of the present invention;
FIG. 21 is a partial view of the nacelle structure of the present invention.
In the figure: 1. an upper cross beam; 2. a lower cross beam; 3. the left connecting bracket of the cross beam; 4. the right of the cross beam is connected with the bracket; 5. the left front wheel cover is provided with a stiffening beam outer plate; 6. the left front wheel cover is provided with a stiffening beam inner plate; 7. a left front wheel cover; 8. a left front wheel cover first front connecting plate; 9. a left front wheel cover second front connecting plate; 10. a left front longitudinal beam wheel cover first connecting beam; 11. a left front side rail wheel cover second connecting beam; 12. a left front side rail wheel cover third connecting beam; 13. the left front longitudinal beam wheel cover connecting assembly; 14. a left front wheel cover assembly; 15. a beam assembly; 16. a front baffle assembly; 17. a stiffening beam is arranged on the right front wheel cover; 18. a right front rail assembly; 19. the right front longitudinal beam wheel cover connecting assembly; 20. left front rail assembly; 21. a left front wheel cover is provided with a stiffening beam; 22. installing a bolt; 23. and the cross beam is protected.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 19 to 20, the present invention provides an automobile engine room structure including a wheel cover assembly, a cross member assembly 15, and a side member assembly; wherein the wheel cover assembly comprises a left front wheel cover assembly 14 and a right front wheel cover assembly, and the rail assembly comprises a left front rail assembly 20 and a right front rail assembly 18; the left front longitudinal beam assembly 20 and the right front longitudinal beam assembly 18 are arranged side by side and are respectively positioned on two sides of the central axis F of the frame; the bottom of the left front wheel cover assembly 14 is fixedly connected to the left front longitudinal beam assembly 20, and the bottom of the right front wheel cover assembly is fixedly connected to the right front longitudinal beam assembly 18; one end of the beam assembly 15 is fixedly connected to the left front wheel cover assembly 14, and the other end of the beam assembly 15 is fixedly connected to the right front wheel cover assembly; by adopting the design connection of the structure, an engine cabin is formed in the area where the cross beam assembly 15, the wheel cover assembly and the longitudinal beam assembly are connected, so that an engine can be installed; according to the automobile engine room structure provided by the invention, the wheel cover assembly, the cross beam assembly 15 and the longitudinal beam assembly can be connected through welding, bolts and rivets to form the engine room structure, and the engine room structure has the advantages of strong anti-collision capability, simple structure and process, and strong universality, and can effectively improve the torsional rigidity of the left and right longitudinal beam assemblies.
Preferably, in combination with the above, as shown in fig. 19 to 20, the present invention provides an automobile engine room structure further comprising a longitudinal beam wheel cover connecting assembly and a reinforcing beam on the wheel cover; the longitudinal beam wheel cover connecting assembly comprises a left front longitudinal beam wheel cover connecting assembly 13 and a right front longitudinal beam wheel cover connecting assembly 19, and the wheel cover upper reinforcing beam comprises a left front wheel cover upper reinforcing beam 21 and a right front wheel cover upper reinforcing beam 17; the left front wheel cover upper reinforcement beam 21 is fixedly connected to the upper surface of the left front wheel cover assembly 14, and the right front wheel cover upper reinforcement beam 17 is fixedly connected to the upper surface of the right front wheel cover assembly; further, the left front side member wheel cover connecting assembly 13 is connected between the left front side member assembly 20 and the left front wheel cover upper reinforcement beam 21 in the vertical direction, the bottom of the left front side member wheel cover connecting assembly 13 is fixedly connected to the front end of the left front side member assembly 20, and the top of the left front side member wheel cover connecting assembly 13 is fixedly connected to the bottom of the left front wheel cover upper reinforcement beam 21; correspondingly, the bottom of the right front side frame wheel cover connecting assembly 19 is fixedly connected to the front end of the right front side frame assembly 18, and the top of the right front side frame wheel cover connecting assembly 19 is fixedly connected to the bottom of the right front wheel cover upper reinforcement beam 17.
Preferably, in combination with the above-mentioned scheme, as shown in fig. 1 to 6, the beam assembly 15 includes an upper beam 1 and a lower beam 2, the upper beam 1 and the lower beam 2 are respectively formed integrally by metal, specifically, steel plate or aluminum plate, and the connection surface of the upper beam 1 and the lower beam 2 is a concave surface; specifically, the thickness of the upper beam 1 and the lower beam 2 can be designed according to different specifications according to the strength requirement, the requirements on the safety performance and NVH performance can be realized by adjusting the thickness of a metal plate or the strength of a steel plate or an aluminum plate material, different vehicles can correspond to different safety collision requirements, and the vehicle can also be locally enhanced by locally adding patch plates or supporting plates; of course, part of the structure can be canceled to cope with collision working conditions and NVH performance standard grades of different vehicle types, and meanwhile, the platform vehicle type can be realized by designing parts with the same specification; further, the upper beam 1 and the lower beam 2 are fixedly connected together through respective concave surfaces, so that a beam body is formed; specifically, a cavity structure with a closed side wall is formed in the beam body, so that the deformation resistance of the structure on collision safety and the effect of transmitting collision energy can be greatly improved.
Preferably, in combination with the above scheme, as shown in fig. 1 to 6, the beam assembly 15 further includes a beam left connecting bracket 3 and a beam right connecting bracket 4, where the beam left connecting bracket 3 and the beam right connecting bracket 4 are respectively formed by metal integral molding, and specific steel plates or aluminum plates are formed by integral stamping or casting, and the thicknesses of the beam left connecting bracket 3 and the beam right connecting bracket 4 can be designed by adopting dimensions and materials with different specifications according to strength requirements; the beam left connecting bracket 3 is fixedly connected to one end of the left side of the beam body, and the beam right connecting bracket 4 is fixedly connected to one end of the right side of the beam body; the beam assembly 15 is fixedly connected with the left front wheel cover assembly 14 through the beam left connecting bracket 3, and the beam assembly 15 is fixedly connected with the right front wheel cover assembly through the beam right connecting bracket 4; further, to enhance the strength of the left beam connecting bracket 3 and the right beam connecting bracket 4, it may be achieved by adding patch boards or cover boards or corresponding reinforcing structures.
Preferably, in combination with the above-mentioned solutions, as shown in fig. 9, 10, 11 and 19, the front left wheel cover assembly 14 includes a front left wheel cover 7, a front left wheel cover first front connecting plate 8 and a front left wheel cover second front connecting plate 9, the front left wheel cover 7 is integrally formed by metal, specifically may be formed by die casting aluminum, the front left wheel cover first front connecting plate 8 and the front left wheel cover second front connecting plate 9 are respectively integrally formed by metal, specifically may be formed by integrally stamping or casting steel plate or aluminum plate, wherein the sample thicknesses of the front left wheel cover first front connecting plate 8 and the front left wheel cover second front connecting plate 9 may be designed according to the strength requirement, and the requirements on safety performance and NVH performance may be realized by adjusting the thickness of sheet metal or the strength of steel plate or aluminum plate material, and different vehicles may also be locally reinforced by locally increasing patch plates or support plates; of course, part of the structure can be canceled to cope with collision working conditions and NVH performance standard grades of different vehicle types, and meanwhile, the platform vehicle type can be realized by designing parts with the same specification; the left front wheel cover first front connecting plate 8 and the left front wheel cover second front connecting plate 9 are fixedly connected with the lap surface of the left front wheel cover 7 through a self-piercing riveting process (namely SPR technology) or a welding process and other connecting processes respectively;
preferably, in combination with the above scheme, referring to fig. 9, 10, 11 and 19, the front right wheel cover assembly includes a front right wheel cover, a front right wheel cover first front connecting plate and a front right wheel cover second front connecting plate, the front right wheel cover is formed by metal integral molding, specifically, die-casting aluminum process, the front right wheel cover first front connecting plate and the front right wheel cover second front connecting plate are formed by metal integral molding respectively, specifically, may be formed by steel plate or aluminum plate integral stamping or casting, wherein the thickness of the front right wheel cover first front connecting plate and the front right wheel cover second front connecting plate may be designed according to the strength requirement, and the requirements on safety performance and NVH performance may be realized by adjusting the thickness of metal plate or the steel plate or aluminum plate material strength, and different vehicles may be partially reinforced by partially adding patch plates or support plates; of course, part of the structure can be canceled to cope with collision working conditions and NVH performance standard grades of different vehicle types, and meanwhile, the platform vehicle type can be realized by designing parts with the same specification; the first front connecting plate of the right front wheel cover and the second front connecting plate of the right front wheel cover are fixedly connected with the lap joint surface of the right front wheel cover through a self-piercing riveting process (namely SPR technology) or a welding process and the like respectively.
Preferably, in combination with the above, as shown in fig. 12 to 17, the left front side frame wheel cover connecting assembly 13 includes a left front side frame wheel cover first connecting beam 10, a left front side frame wheel cover second connecting beam 11, and a left front side frame wheel cover third connecting beam 13; the first connecting beam 10 of the left front longitudinal beam wheel cover, the second connecting beam 11 of the left front longitudinal beam wheel cover and the third connecting beam 13 of the left front longitudinal beam wheel cover are respectively formed by metal in an integral mode, particularly steel plates or aluminum plates are formed by integral stamping or casting, the thicknesses of the first connecting beam 10 of the left front longitudinal beam wheel cover, the second connecting beam 11 of the left front longitudinal beam wheel cover and the third connecting beam 13 of the left front longitudinal beam wheel cover can be designed according to the strength requirements, the requirements on safety performance and NVH performance can be met by adjusting the thickness of metal plates or the strength of the steel plates or the aluminum plates, and different vehicles can be partially reinforced by partially adding patch plates or supporting plates; of course, part of the structure can be canceled to cope with collision working conditions and NVH performance standard grades of different vehicle types, and meanwhile, the platform vehicle type can be realized by designing parts with the same specification; further, the left front longitudinal beam wheel cover first connecting beam10. The left front side frame wheel cover second connecting beam 11 and the left front side frame wheel cover third connecting beam 13 are formed by spot welding or CO 2 The left front longitudinal beam wheel cover connecting assembly 13 is formed by welding or riveting or bolting or casting and integrally forming; further, the first connecting beam 10 of the left front longitudinal beam wheel cover and the second connecting beam 11 of the left front longitudinal beam wheel cover are fixedly connected together through the concave surface respectively, so that a cavity structure is formed, and the deformation resistance of the structure on collision safety and the effect of transmitting collision energy can be greatly improved.
Preferably, in combination with the above, referring to fig. 12 to 17, the right front side frame wheel cover connection assembly 19 includes a right front side frame wheel cover first connection beam, a right front side frame wheel cover second connection beam, and a right front side frame wheel cover third connection beam; the first connecting beam of the right front longitudinal beam wheel cover, the second connecting beam of the right front longitudinal beam wheel cover and the third connecting beam of the right front longitudinal beam wheel cover are respectively formed integrally through metal, particularly steel plates or aluminum plates are formed integrally through stamping or casting, the thickness of the steel plates or the aluminum plates can be designed according to the size of different specifications according to the strength requirement, the safety performance and the NVH performance requirements can be met by adjusting the thickness of metal plates or the strength of the steel plates or the aluminum plates, different vehicles can correspond to different safety collision requirements, and local enhancement can be carried out by locally adding patch plates or supporting plates; of course, part of the structure can be canceled to cope with collision working conditions and NVH performance standard grades of different vehicle types, and meanwhile, the platform vehicle type can be realized by designing parts with the same specification; the first connecting beam of the right front longitudinal beam wheel cover, the second connecting beam of the right front longitudinal beam wheel cover and the third connecting beam of the right front longitudinal beam wheel cover are welded by spot welding or CO 2 The welding or riveting or bolting or casting are fixedly connected together in an integrated mode, so that a right front longitudinal beam wheel cover connecting assembly 19 is formed; the first connecting beam of the right front longitudinal beam wheel cover and the second connecting beam of the right front longitudinal beam wheel cover are fixedly connected together through the concave surface respectively, so that a cavity structure is formed, and the deformation resistance of the structure on collision safety and the effect of transmitting collision energy can be greatly improved.
Preferably, in combination with the above, as shown in fig. 7 to 8 and 18, the left front wheel cover upper reinforcement beam 21 includes the left front wheel cover upper reinforcement beam outer panel 5 and the left front wheel cover upper reinforcement beam inner panel 6; the left front wheel cover upper stiffening beam outer plate 5 and the left front wheel cover upper stiffening beam inner plate 6 are respectively formed through metal, specifically steel plates or aluminum plates are formed through integral stamping or casting, the thicknesses of the left front wheel cover upper stiffening beam outer plate 5 and the left front wheel cover upper stiffening beam inner plate 6 can be designed according to different specifications and sizes according to strength requirements, the requirements on safety performance and NVH performance can be met by adjusting the thickness of metal plates or the strength of steel plates or aluminum plates, and different vehicles can be partially reinforced according to different safety collision requirements by partially adding patch plates or supporting plates; of course, part of the structure can be canceled to cope with collision working conditions and NVH performance standard grades of different vehicle types, and meanwhile, the platform vehicle type can be realized by designing parts with the same specification; the left front wheel cover upper stiffening beam outer plate 5 and the left front wheel cover upper stiffening beam inner plate 6 are fixedly connected together through welding or bolts or riveting or casting integrated forming, so that an integrated structure is formed.
Preferably, in combination with the above, referring to fig. 7 to 8 and 18, the right front wheel cover upper reinforcement beam 17 includes a right front wheel cover upper reinforcement beam outer plate and a right front wheel cover upper reinforcement beam inner plate; the right front wheel cover upper reinforcement beam outer plate and the right front wheel cover upper reinforcement beam inner plate are respectively formed through metal in an integral mode, specifically steel plates or aluminum plates are formed through integral stamping or casting, the thicknesses of the right front wheel cover upper reinforcement beam outer plate and the right front wheel cover upper reinforcement beam inner plate can be designed according to different specifications and sizes according to strength requirements, the safety performance and NVH performance requirements can be met by adjusting the thickness of metal plates or the strength of steel plates or aluminum plates, and different vehicles can be partially reinforced in a mode of partially adding patch plates or supporting plates; of course, part of the structure can be canceled to cope with collision working conditions and NVH performance standard grades of different vehicle types, and meanwhile, the platform vehicle type can be realized by designing parts with the same specification; the outer stiffening beam plate on the right front wheel cover and the inner stiffening beam plate on the right front wheel cover are fixedly connected together through welding or bolts or riveting or casting integrated forming, so that an integrated structure is formed.
Preferably, in combination with the above, as shown in fig. 19 to 20, the engine compartment structure provided by the present invention further includes a front baffle assembly 16 and a protective cross member 23; specifically, the front baffle assembly 16 is formed by spot welding or CO 2 The welding, riveting, bolting or casting are integrally formed, fixedly connected with the wheel cover assembly, the cross beam assembly 15 and the longitudinal beam assembly respectively and positioned at the rear side of the engine cabin, so that the engine is protected; further, one end of the protection cross member 23 is fixedly connected to the front end of the left front side member assembly 20, and the other end of the protection cross member 23 is fixedly connected to the front end of the right front side member assembly 18 and located on the front side of the engine compartment, so that the engine in the engine compartment can be effectively protected.
Preferably, in combination with the above-described aspects, as shown in fig. 19 to 21, one end of the beam assembly 15 is fixedly connected to the left front wheel cover assembly 14 by a plurality of connection bolts 22 or welding, and the other end of the beam assembly 15 is fixedly connected to the right front wheel cover assembly by a plurality of connection bolts 22 or welding, so that connection and detachment are facilitated.
Preferably, in combination with the above, as shown in fig. 19 to 21, the beam assembly 15 is designed to: a plurality of mounting points can be arranged on the beam assembly 15 according to the arrangement requirement of the automobile, and accessories required by some automobiles, such as heat pumps, pipelines and the like, are fixed; meanwhile, in order to increase the strength and rigidity of the beam assembly 15, the upper beam 1, the lower beam 2, the left beam connecting bracket 3 or the right beam connecting bracket 4 can be respectively realized in a mode of adding patch plates, cover plates and reinforcing ribs or changing materials or connecting processes.
Preferably, in combination with the above solution, in the solution of the present application, the wheel cover assembly, the cross beam assembly 15 and the longitudinal beam assembly are respectively provided with a reinforcing rib or a supporting plate or a patch or a cover plate, wherein the supporting plate or the patch or the cover plate is a metal plate, preferably a steel plate; specifically, the left front longitudinal beam wheel cover connecting assembly 13, the right front longitudinal beam wheel cover connecting assembly 19 and the cross beam assembly 15 can be added with a mounting point structure and a mounting point reinforcing structure according to the safety standard and NVH standard of the whole vehicle and the mounting requirement of accessories, and can be also added with reinforcing ribs, a supporting plate and a patch plate or reinforced by adopting a mode of a higher-strength steel plate according to different legal collision working conditions; of course, for lower legal collision conditions or low configuration requirements, the left front longitudinal beam wheel cover connecting assembly 13, the right front longitudinal beam wheel cover connecting assembly 19 and the cross beam assembly 15 can be properly canceled, part of reinforcing plates can be canceled, patch plates can be canceled, and the material specification and the number and strength of welding spot connection can be reduced.
Preferably, in combination with the above-described solution, as shown in fig. 19 to 20, in the solution provided by the present invention, the left front side member assembly 20 and the right front side member assembly 18 are symmetrical with respect to the XZ plane of the frame, respectively; specifically, the XZ plane is a plane formed by an X axis and a Z axis in a rectangular coordinate system, and in the frame design, the X axis may be represented as a width direction of the frame, and the Z axis may be represented as a height direction of the frame.
Preferably, in combination with the above, as shown in fig. 19 to 20, the left front wheel cover assembly 14 and the right front wheel cover assembly are symmetrical with respect to the XZ plane of the vehicle frame, respectively; specifically, the XZ plane is a plane formed by an X axis and a Z axis in a rectangular coordinate system, and in the frame design, the X axis may be represented as a width direction of the frame, and the Z axis may be represented as a height direction of the frame.
Preferably, in combination with the above, as shown in fig. 19 to 20, the left and right front side rail wheel cover connection assemblies 13 and 19 are symmetrical with respect to the XZ plane of the frame, respectively; specifically, the XZ plane is a plane formed by an X axis and a Z axis in a rectangular coordinate system, and in the frame design, the X axis may be represented as a width direction of the frame, and the Z axis may be represented as a height direction of the frame.
Preferably, in combination with the above, as shown in fig. 19 to 20, the left front wheel cover upper reinforcement beam 21 and the right front wheel cover upper reinforcement beam 17 are symmetrical with respect to the XZ plane of the vehicle frame, respectively; specifically, the XZ plane is a plane formed by an X axis and a Z axis in a rectangular coordinate system, and in the frame design, the X axis may be represented as a width direction of the frame, and the Z axis may be represented as a height direction of the frame.
The invention provides an automobile engine cabin structure which has obvious improvement on torsional rigidity, modal and dynamic rigidity of a white body framework assembly and greatly enhances the anti-collision deformation capacity of a front cabin; taking a certain compact car as an example, the front cabin assembly with the structure realizes that the torsional rigidity of the white car body framework assembly is improved by 7%, the modal is improved by 2Hz, the safety collision performance is improved by 10%, the front collision safety performance is obviously improved, the collision energy can be well transmitted, and the passenger cabin and the battery pack can be effectively protected; meanwhile, a plurality of mounting points can be added to the engine compartment structure, mounting points are provided for accessories of different engine compartments, the arrangement structure is simple, the connection process is simple, and the implementation is convenient.
Correspondingly, in combination with the scheme, the invention also provides an automobile, which comprises an automobile engine room structure, wherein the automobile engine room structure is the automobile engine room structure; further, the vehicle is preferably a new energy vehicle.
The scheme provided by the invention has the following technical effects:
the scheme provided by the invention has the advantages of simple structure, light weight and low cost;
secondly, the scheme provided by the invention can be connected through welding, bolts and rivets, the connection process is simple, and the process is easy to realize;
thirdly, the scheme provided by the invention has obvious improvement on local rigidity and mode, especially has reasonable design of collision force transmission path, and can obviously improve collision safety performance;
fourth, the scheme provided by the invention can be used for platform development, can be suitable for different vehicle type requirements, and can realize collision safety requirements or installation requirements by slightly and locally enhancing different working conditions.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the disclosed technology. Therefore, any modification, equivalent variation and modification of the above embodiments according to the technology of the present invention fall within the protection scope of the present invention.
Claims (9)
1. An automotive engine compartment structure characterized in that the engine compartment structure comprises a wheel cover assembly, a cross beam assembly (15) and a longitudinal beam assembly; the wheel cover assembly comprises a left front wheel cover assembly (14) and a right front wheel cover assembly, and the longitudinal beam assembly comprises a left front longitudinal beam assembly (20) and a right front longitudinal beam assembly (18); the left front longitudinal beam assembly (20) and the right front longitudinal beam assembly (18) are arranged side by side and are respectively positioned at two sides of the central axis (F) of the frame; the bottom of the left front wheel cover assembly (14) is fixedly connected to the left front longitudinal beam assembly (20), and the bottom of the right front wheel cover assembly is fixedly connected to the right front longitudinal beam assembly (18); one end of the beam assembly (15) is fixedly connected to the left front wheel cover assembly (14), and the other end of the beam assembly (15) is fixedly connected to the right front wheel cover assembly; an engine room is formed in the area where the cross beam assembly (15), the wheel cover assembly and the longitudinal beam assembly are connected; the left front wheel cover assembly (14) comprises a left front wheel cover (7), a left front wheel cover first front connecting plate (8) and a left front wheel cover second front connecting plate (9), wherein the left front wheel cover (7) is integrally formed through metal, and the left front wheel cover first front connecting plate (8) and the left front wheel cover second front connecting plate (9) are respectively integrally formed through metal; the left front wheel cover first front connecting plate (8) and the left front wheel cover second front connecting plate (9) are fixedly connected with the lap joint surface of the left front wheel cover (7) through a self-piercing riveting process or a welding process respectively; the right front wheel cover assembly comprises a right front wheel cover, a right front wheel cover first front connecting plate and a right front wheel cover second front connecting plate, wherein the right front wheel cover is integrally formed through metal, and the right front wheel cover first front connecting plate and the right front wheel cover second front connecting plate are respectively integrally formed through metal; the first front connecting plate of the right front wheel cover and the second front connecting plate of the right front wheel cover are fixedly connected with the lap joint surface of the right front wheel cover through a self-piercing riveting process or a welding process respectively.
2. The automotive engine-nacelle structure of claim 1, further comprising a rail-wheel-cover connection assembly including a left front rail-wheel-cover connection assembly (13) and a right front rail-wheel-cover connection assembly (19), and a right front-wheel-cover reinforcement beam including a left front-wheel-cover upper reinforcement beam (21) and a right front-wheel-cover upper reinforcement beam (17); the left front wheel cover upper stiffening beam (21) is fixedly connected to the upper surface of the left front wheel cover assembly (14), and the right front wheel cover upper stiffening beam (17) is fixedly connected to the upper surface of the right front wheel cover assembly; the bottom of the left front longitudinal beam wheel cover connecting assembly (13) is fixedly connected to the front end of the left front longitudinal beam assembly (20), and the top of the left front longitudinal beam wheel cover connecting assembly (13) is fixedly connected to the bottom of the left front wheel cover upper reinforcing beam (21); the bottom of the right front longitudinal beam wheel cover connecting assembly (19) is fixedly connected to the front end of the right front longitudinal beam assembly (18), and the top of the right front longitudinal beam wheel cover connecting assembly (19) is fixedly connected to the bottom of the right front wheel cover upper reinforcing beam (17).
3. The automotive engine-compartment structure according to claim 1, characterized in that the beam assembly (15) comprises an upper beam (1) and a lower beam (2), the upper beam (1) and the lower beam (2) are respectively integrally formed by metal, and the connecting surface of the upper beam (1) and the lower beam (2) is a concave surface; the upper cross beam (1) and the lower cross beam (2) are fixedly connected together through respective concave surfaces, so that a cross beam body is formed; and a cavity structure with a closed side wall is formed in the cross beam body.
4. A car engine compartment structure according to claim 3, characterized in that the beam assembly (15) further comprises a beam left connecting bracket (3) and a beam right connecting bracket (4), the beam left connecting bracket (3) and the beam right connecting bracket (4) being integrally formed by metal, respectively; the beam left connecting bracket (3) is fixedly connected to the left side end of the beam body, and the beam right connecting bracket (4) is fixedly connected to the right side end of the beam body; the beam assembly (15) is fixedly connected with the left front wheel cover assembly (14) through the beam left connecting bracket (3), and the beam assembly (15) is fixedly connected with the right front wheel cover assembly through the beam right connecting bracket (4).
5. The automotive engine-cabin structure according to claim 2, characterized in that the left front side-frame wheel-cover connection assembly (13) includes a left front side-frame wheel-cover first connection beam (10), a left front side-frame wheel-cover second connection beam (11), and a left front side-frame wheel-cover third connection beam (12); the left front longitudinal beam wheel cover first connecting beam (10), the left front longitudinal beam wheel cover second connecting beam (11) and the left front longitudinal beam wheel cover third connecting beam (12) are respectively formed integrally through metal; the left front longitudinal beam wheel cover first connecting beam (10), the left front longitudinal beam wheel cover second connecting beam (11) and the left front longitudinal beam wheel cover third connecting beam (12) are welded by spot welding or CO 2 Welding or riveting or bolting or casting the left front longitudinal beam wheel cover connecting assembly (13) together; the left front longitudinal beam wheel cover first connecting beam (10) and the left front longitudinal beam wheel cover second connecting beam (11) are respectively and fixedly connected together through a concave surface, so that a cavity structure is formed;
the right front longitudinal beam wheel cover connecting assembly (19) comprises a right front longitudinal beam wheel cover first connecting beam, a right front longitudinal beam wheel cover second connecting beam and a right front longitudinal beam wheel cover third connecting beam; the right front longitudinal beam wheel cover first connecting beam, the right front longitudinal beam wheel cover second connecting beam and the right front longitudinal beam wheel cover third connecting beam are respectively formed integrally through metal; the first connecting beam of the right front longitudinal beam wheel cover, the second connecting beam of the right front longitudinal beam wheel cover and the third connecting beam of the right front longitudinal beam wheel cover are welded by spot welding or CO 2 Welding or riveting or bolting or casting the left front longitudinal beam wheel cover connecting assembly (19) together; the right front longitudinal beam wheel cover first connecting beamThe second connecting beams of the right front longitudinal beam wheel cover are fixedly connected together through concave surfaces respectively, so that a cavity structure is formed.
6. The automotive engine-compartment structure according to claim 2, characterized in that the left front wheel-cover upper reinforcement beam (21) includes a left front wheel-cover upper reinforcement beam outer panel (5) and a left front wheel-cover upper reinforcement beam inner panel (6); the left front wheel cover upper stiffening beam outer plate (5) and the left front wheel cover upper stiffening beam inner plate (6) are respectively formed integrally through metal; the left front wheel cover upper stiffening beam outer plate (5) and the left front wheel cover upper stiffening beam inner plate (6) are fixedly connected together through welding or bolts or riveting or casting integrated forming, so that an integrated structure is formed;
the right front wheel cover upper stiffening beam (17) comprises a right front wheel cover upper stiffening beam outer plate and a right front wheel cover upper stiffening beam inner plate; the right front wheel cover upper stiffening beam outer plate and the right front wheel cover upper stiffening beam inner plate are respectively formed integrally through metal; the right front wheel cover upper stiffening beam outer plate and the right front wheel cover upper stiffening beam inner plate are fixedly connected together through welding or bolts or riveting or casting integrated forming, so that an integrated structure is formed.
7. The automotive engine-compartment structure according to claim 1, characterized in that it further comprises a front fender assembly (16) and a protective cross-member (23); the front baffle assembly (16) is manufactured by spot welding or CO 2 The welding, riveting, bolting or casting are integrally formed, are fixedly connected with the wheel cover assembly, the cross beam assembly (15) and the longitudinal beam assembly respectively, and are positioned at the rear side of the engine compartment; one end of the protection cross beam (23) is fixedly connected to the front end of the left front longitudinal beam assembly (20), and the other end of the protection cross beam (23) is fixedly connected to the front end of the right front longitudinal beam assembly (18) and is positioned on the front side of the engine compartment;
one end of the beam assembly (15) is fixedly connected to the left front wheel cover assembly (14) through a plurality of connecting bolts (22) or welding, and the other end of the beam assembly (15) is fixedly connected to the right front wheel cover assembly through a plurality of connecting bolts (22) or welding.
8. The automobile engine compartment structure according to claim 2, characterized in that the wheel cover assembly, the cross beam assembly (15) and the longitudinal beam assembly are respectively provided with a reinforcing rib or a supporting plate or a patch or a cover plate, and the supporting plate or the patch or the cover plate is a metal plate;
the left front longitudinal beam assembly (20) and the right front longitudinal beam assembly (18) are respectively symmetrical with the XZ plane of the frame;
the left front wheel cover assembly (14) and the right front wheel cover assembly are respectively symmetrical according to an XZ plane of the frame;
the left front longitudinal beam wheel cover connecting assembly (13) and the right front longitudinal beam wheel cover connecting assembly (19) are respectively symmetrical according to an XZ plane of the frame;
the left front wheel cover upper stiffening beam (21) and the right front wheel cover upper stiffening beam (17) are respectively symmetrical with the XZ plane of the frame.
9. An automobile comprising an automobile engine compartment structure, characterized in that the automobile engine compartment structure is an automobile engine compartment structure as claimed in any one of the preceding claims 1 to 8.
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| CN202211306292.2A CN115447672B (en) | 2022-10-25 | 2022-10-25 | Automobile engine cabin structure and automobile |
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| CN116476926A (en) * | 2023-05-31 | 2023-07-25 | 深蓝汽车科技有限公司 | Vehicle body structure, manufacturing method thereof and automobile |
| CN120039314A (en) * | 2025-03-21 | 2025-05-27 | 奇瑞汽车股份有限公司 | Upper longitudinal beam structure assembly, vehicle body and vehicle |
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