CN113147908A - Front end structure of vehicle body - Google Patents
Front end structure of vehicle body Download PDFInfo
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- CN113147908A CN113147908A CN202110424477.2A CN202110424477A CN113147908A CN 113147908 A CN113147908 A CN 113147908A CN 202110424477 A CN202110424477 A CN 202110424477A CN 113147908 A CN113147908 A CN 113147908A
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims description 53
- 230000002787 reinforcement Effects 0.000 claims description 19
- 238000003466 welding Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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- Combustion & Propulsion (AREA)
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- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a front end structure of a vehicle body, which comprises an engine compartment side beam assembly, an engine compartment stiffening beam assembly and a guide box assembly, wherein the engine compartment side beam assembly is arranged on the front end of the vehicle body; the engine compartment stiffening beam assembly and the engine compartment boundary beam assembly are arranged at intervals from left to right; the guide box assembly comprises an upper connecting piece and a lower connecting piece arranged on the lower side of the upper connecting piece, the left side and the right side of the upper connecting piece are respectively connected with the front part of the engine compartment reinforcing beam assembly and the front part of the engine compartment boundary beam assembly, and the left side and the right side of the lower connecting piece are respectively connected with the front part of the engine compartment reinforcing beam assembly and the front part of the engine compartment boundary beam assembly; the front end of the engine compartment stiffening beam assembly is provided with a front end mounting plate. According to the front end structure of the vehicle body, provided by the invention, when the front end structure is in response to a 25% offset collision working condition, energy can be transmitted to the A column assembly and the engine compartment side beam assembly, so that the engine compartment side beam assembly participates in the working condition and transmits and absorbs energy together.
Description
Technical Field
The invention relates to the technical field of automobile body structures, in particular to an automobile body front end structure.
Background
In recent years, people are increasingly aware of vehicle collision safety, collision regulations and C-NCAP evaluation indexes are increasingly tightened, and meanwhile, with the introduction of a C-IASI evaluation system, the requirements on passenger vehicle collision safety are more strict, and particularly, the conditions are most strict under 25% offset collision. The conventional passenger vehicle type structure only participates in energy absorption at the front end of collision through a front collision cross beam and an engine compartment boundary beam, cannot cope with 25% of offset collision working conditions, and has the defect of a congenital structure with unsmooth force transmission. In addition, in order to deal with 25% of offset collision working conditions, the side face of the engine compartment side beam is additionally provided with a structure of a general assembly reinforcing part in a vehicle model, energy is guided to be transmitted to the engine compartment side beam, and an energy absorption effect is achieved.
Disclosure of Invention
In view of the above, an object of the present invention is to overcome the defects in the prior art, and provide a front end structure of a vehicle body, which can transmit energy to an a pillar assembly and an engine compartment side sill assembly when dealing with a 25% offset collision condition, so that the engine compartment side sill assembly participates in the condition to transmit and absorb energy together; simple structure and light weight.
The invention discloses a front end structure of a vehicle body, which comprises an engine compartment side beam assembly, an engine compartment stiffening beam assembly and a guide box assembly, wherein the engine compartment side beam assembly is arranged on the front end of the vehicle body; the engine compartment stiffening beam assembly and the engine compartment boundary beam assembly are arranged at intervals from left to right; the guide box assembly comprises an upper connecting piece and a lower connecting piece arranged on the lower side of the upper connecting piece, the left side and the right side of the upper connecting piece are respectively connected with the front part of the engine compartment reinforcing beam assembly and the front part of the engine compartment boundary beam assembly, the left side and the right side of the lower connecting piece are respectively connected with the front part of the engine compartment reinforcing beam assembly and the front part of the engine compartment boundary beam assembly, and a cavity structure is formed among the engine compartment reinforcing beam assembly, the upper connecting piece, the engine compartment boundary beam assembly and the lower connecting piece; the front end of the engine compartment stiffening beam assembly is provided with a front end mounting plate used for being connected with the front collision cross beam assembly, and the rear part of the engine compartment stiffening beam assembly can be connected with the A-pillar assembly.
Further, the upper connecting member includes an upper side force transmission plate, a first overlapping edge for connecting with a front portion of the engine compartment side beam assembly, and a second overlapping edge for connecting with a front portion of the engine compartment reinforcement beam assembly, and the first overlapping edge and the second overlapping edge are respectively disposed on left and right sides of the upper side force transmission plate.
Further, the lower connecting piece comprises a lower force transmission longitudinal plate, a lower force transmission transverse plate, a third overlapping edge component used for being connected with the front part of the engine compartment side beam assembly, a fourth overlapping edge component used for being connected with the front part of the engine compartment stiffening beam assembly and a fifth overlapping edge used for being connected with the upper connecting plate, the lower force transmission longitudinal plate is arranged above the rear side of the lower force transmission transverse plate and forms an L-shaped structure, the third overlap edge component comprises an upper third overlap edge arranged on the right side of the lower force transmission longitudinal plate and a lower third overlap edge arranged on the right side of the lower force transmission transverse plate, the fourth overlap edge assembly comprises an upper fourth overlap edge arranged on the left side of the lower force transmission longitudinal plate and a lower fourth overlap edge arranged on the left side of the lower force transmission transverse plate, and the fifth overlap edge is arranged on the upper side of the lower force transmission longitudinal plate.
Further, the lower force transmission longitudinal plate inclines from back to front in the direction far away from the engine compartment boundary beam assembly, the included angle between the lower force transmission longitudinal plate and the engine compartment boundary beam assembly is alpha, and alpha is larger than or equal to 35 degrees and smaller than or equal to 45 degrees.
Furthermore, the upper connecting piece further comprises a sixth overlapping edge arranged on the front side of the upper force transmission plate, the lower connecting piece further comprises a seventh overlapping edge arranged on the front side of the lower force transmission transverse plate, and a first support lug used for being connected with the sixth overlapping edge and a second support lug used for being connected with the seventh overlapping edge are arranged on the front end mounting plate.
Further, engine compartment boundary beam assembly includes the boundary beam inner panel and sets up the left boundary beam planking of boundary beam inner panel, the boundary beam planking includes from last to down the planking that sets gradually on lap joint board, planking swash plate, middle part board, planking swash plate and outside lap joint board down, the planking swash plate is from last to down the left bank, the planking swash plate is down from supreme left bank down.
Further, the first overlap edge protrudes upward from the upper force transmission plate, the lower third overlap edge protrudes downward from the lower force transmission transverse plate, the first overlap edge is connected with the outer plate upper overlap plate and the outer plate upper inclined plate at the same time, and the lower third overlap edge is connected with the outer plate lower inclined plate and the outer lower overlap plate at the same time.
Further, the engine compartment reinforcing beam assembly comprises a reinforcing beam front section and a reinforcing beam rear section arranged on the rear side of the reinforcing beam front section, a first cavity is arranged inside the reinforcing beam front section, a second cavity is arranged inside the reinforcing beam rear section, and the second cavity is small in front and large in rear.
Further, the stiffening beam front section comprises a stiffening beam front section inner plate and a stiffening beam front section outer plate arranged on the left side of the stiffening beam front section inner plate, and the stiffening beam rear section comprises a stiffening beam rear section inner plate and a stiffening beam rear section outer plate arranged on the left side of the stiffening beam rear section inner plate.
Further, the stiffening beam front section inner plate comprises a first L-shaped main body and a front section inner plate upper overlapping edge arranged on the upper side of the first L-shaped main body, the stiffening beam front section outer plate comprises a second L-shaped main body, a front section outer plate upper overlapping edge arranged on the upper side of the second L-shaped main body and a front section outer plate lower overlapping edge arranged on the lower side of the second L-shaped main body, the front section inner plate upper overlapping edge is connected with the front section outer plate upper overlapping edge, the front section outer plate lower overlapping edge is connected with the left part of the first L-shaped main body, and the first L-shaped main body and the second L-shaped main body form a first cavity with a rectangular cross section.
The invention has the beneficial effects that: when the front end structure of the vehicle body disclosed by the invention is used for dealing with a 25% offset collision working condition, energy generated by collision on a front collision beam assembly can be transmitted to an A column assembly through an engine compartment reinforcing beam assembly and further dispersed to all parts of the whole vehicle, and can be guided to be transmitted to an engine compartment boundary beam assembly through a guide box assembly, so that the engine compartment boundary beam assembly participates in the working condition and transmits and absorbs energy together. The guide box assembly is simple in structure, the engine compartment reinforcing beam assembly and the engine compartment boundary beam assembly are respectively arranged on the left side and the right side of the guide box assembly to form a cavity structure, the weight of the guide box assembly is lighter while the strength is ensured, and all parts are connected by adopting a welding process, so that a process route is optimized, and a vehicle can meet the strength requirement and improve the process performance.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a first schematic view of the present invention mounted on a vehicle body;
FIG. 2 is a second schematic structural view of the present invention mounted on a vehicle body;
FIG. 3 is an exploded view of the present invention;
FIG. 4 is a schematic structural view of the upper connector of the present invention;
FIG. 5 is a schematic view of the construction of the lower connector of the present invention;
FIG. 6 is a schematic structural view of a front mounting plate of the present invention;
FIG. 7 is a schematic view of the connection structure of the upper and lower connection members and the front mounting plate according to the present invention;
FIG. 8 is a schematic cross-sectional view A-A of FIG. 2;
fig. 9 is a schematic sectional view B-B of fig. 2.
Description of reference numerals: 1-an engine compartment side sill assembly, 11-a side sill inner panel, 12-a side sill outer panel, 121-an outer panel upper lap plate, 122-an outer panel upper swash plate, 123-a middle panel, 124-an outer panel lower swash plate, 125-an external lower lap plate, 2-an engine compartment reinforcing beam assembly, 21-a front end mounting plate, 211-a first lug, 212-a second lug, 22-a reinforcing beam front section inner panel, 221-a first L-shaped body, 222-a front section inner panel upper lap edge, 23-a reinforcing beam front section outer panel, 231-a second L-shaped body, 232-a front section outer panel upper lap edge, 233-a front section outer panel lower lap edge, 24-a reinforcing beam rear section inner panel, 25-a reinforcing beam rear section outer panel, 3-a guide box assembly, 31-an upper connecting member, 311-an upper side force transfer plate, 312-first overlapping edge, 313-second overlapping edge, 314-sixth overlapping edge, 32-lower connecting piece, 321-lower force transmission longitudinal plate, 322-lower force transmission transverse plate, 323-third overlapping edge component, 324-fourth overlapping edge component, 325-fifth overlapping edge, 326-seventh overlapping edge and 4-A column assembly.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 9, a front end structure of a vehicle body in the present embodiment includes an engine room side beam assembly 1, an engine room reinforcing beam assembly 2, and a guide box assembly 3; the engine compartment stiffening beam assembly 2 and the engine compartment boundary beam assembly 1 are arranged at intervals from left to right; the guide box assembly 3 comprises an upper connecting piece 31 and a lower connecting piece 32 arranged on the lower side of the upper connecting piece 31, the left side and the right side of the upper connecting piece 31 are respectively connected with the front part of the engine compartment reinforcing beam assembly 2 and the front part of the engine compartment boundary beam assembly 1, the left side and the right side of the lower connecting piece 32 are respectively connected with the front part of the engine compartment reinforcing beam assembly 2 and the front part of the engine compartment boundary beam assembly 1, and a cavity structure is formed among the engine compartment reinforcing beam assembly 2, the upper connecting piece 31, the engine compartment boundary beam assembly 1 and the lower connecting piece 32; the front end of the engine room stiffening beam assembly 2 is provided with a front end mounting plate 21 for connecting with a front collision cross beam assembly, and the rear part of the engine room stiffening beam assembly 2 can be connected with the A-pillar assembly 4. The front end structure of the automobile body can be arranged on the automobile body in a mutually symmetrical mode, the front end mounting plate 21 is provided with the pre-welded nuts, the front collision beam assembly is connected with the front end mounting plate 21 through the pre-welded nuts, the rear part of the stiffening beam is connected with the A column assembly 4 through welding, and when the 25% offset collision working condition is responded, energy generated by collision on the front collision beam assembly can be transmitted to the A column assembly 4 through the engine compartment stiffening beam assembly 2 and then dispersed to all parts of the whole automobile on the one hand, and on the other hand, the energy can be transmitted to the engine compartment side beam assembly 1 through the guide box assembly 3, so that the engine compartment side beam assembly 1 participates in the working condition and transmits the absorbed energy together. The guide box assembly 3 comprises an upper connecting piece 31 and a lower connecting piece 32, the structure is simple, the engine compartment reinforcing beam assembly 2 and the engine compartment side beam assembly 1 are respectively arranged on the left side and the right side of the guide box assembly 3 to form a cavity structure, the weight of the guide box assembly 3 is lighter while the strength is ensured, and the connection among all the components adopts a welding process, so that the process route is optimized, the strength requirement of a vehicle is met, and the process performance is improved.
In the present embodiment, as shown in fig. 4, the upper connecting member 31 includes an upper force transmission plate 311, a first overlapping edge 312 for connecting to the front portion of the nacelle side sill assembly 1, and a second overlapping edge 313 for connecting to the front portion of the nacelle reinforcing beam assembly 2, and the first overlapping edge 312 and the second overlapping edge 313 are respectively provided on the left and right sides of the upper force transmission plate 311. The upper side force transmission plate 311 is connected with the first overlapping edge 312 and the second overlapping edge 313 simultaneously, energy can be guided to be transmitted to the engine compartment side beam assembly 1 from the engine compartment reinforcing beam assembly 2, the contact area of the first overlapping edge 312 and the engine compartment reinforcing beam assembly 2 can be guaranteed, the contact area of the second overlapping plate and the engine compartment side beam can be guaranteed, the sufficient contact area not only can guarantee welding strength, but also can guarantee the transmission efficiency of the energy in collision.
In the present embodiment, as shown in fig. 5, the lower connecting member 32 includes a lower force transmitting longitudinal plate 321, a lower force transmitting transverse plate 322, a third overlapping edge component 323 for connecting with the front portion of the nacelle side sill assembly 1, a fourth overlapping edge component 324 for connecting with the front portion of the nacelle reinforcing beam assembly 2, and a fifth overlapping edge 325 for connecting with the upper connecting plate, the lower force transmitting longitudinal plate 321 is disposed above the rear side of the lower force transmitting transverse plate 322 and both of them form an "L" shaped structure, the third overlapping edge component 323 includes an upper third overlapping edge disposed on the right side of the lower force transmitting longitudinal plate 321 and a lower third overlapping edge disposed on the right side of the lower force transmitting transverse plate 322, the fourth overlapping edge component 324 includes an upper fourth overlapping edge disposed on the left side of the lower force transmitting longitudinal plate 321 and a lower fourth overlapping edge disposed on the left side of the lower force transmitting transverse plate 322, the fifth overlapping edge 325 is disposed on the upper side of the lower force transmission longitudinal plate 321. Both the lower force transmission longitudinal plate 321 and the lower force transmission transverse plate 322 can transmit energy, the third overlap edge component 323 can ensure the contact area with the engine compartment side beam assembly 1, the fourth overlap edge component 324 can ensure the contact area with the engine compartment reinforcing beam assembly 2, and the sufficient contact area can ensure not only the welding strength, but also the energy transmission efficiency in collision.
In the present embodiment, as shown in fig. 8, the lower force transmitting longitudinal plate 321 is inclined from back to front in a direction away from the nacelle side sill assembly 1, and an included angle between the lower force transmitting longitudinal plate 321 and the nacelle side sill assembly 1 is α, wherein α is greater than or equal to 35 ° and less than or equal to 45 °, and α is preferably 40 °. In the 25% offset collision working condition of the C-IASI evaluation system, the lower side force transmission longitudinal plate 321 can transmit energy from the engine compartment reinforcing beam assembly 2 to the engine compartment boundary beam assembly 1, the obliquely arranged lower side force transmission longitudinal plate 321 can have a better energy transmission effect, and the energy transmission effect of the lower side force transmission longitudinal plate 321 is optimal when alpha is 40 degrees after simulation, so that the engine compartment boundary beam assembly 1 can participate in the 25% offset collision working condition to transmit and absorb energy.
In this embodiment, as shown in fig. 4 to 7, the upper connecting member 31 further includes a sixth overlapping edge 314 disposed on the front side of the upper force transmission plate 311, the lower connecting member 32 further includes a seventh overlapping edge 326 disposed on the front side of the lower force transmission cross plate 322, and the front mounting plate 21 is provided with a first lug 211 connected to the sixth overlapping edge 314 and a second lug 212 connected to the seventh overlapping edge 326. When the collision condition is 25% offset, the energy generated by the collision on the front collision beam assembly is transmitted to the front end mounting plate 21, and the first lug 211 and the second lug 212 are both connected with the guide box assembly 3, so that part of the energy is directly transmitted to the upper force transmission plate 311 and the lower force transmission transverse plate 322 without passing through the engine compartment reinforcing beam assembly 2, and then is transmitted to the engine compartment side beam assembly 1, and the energy transmission efficiency is further improved.
In this embodiment, as shown in fig. 9, the side sill assembly 1 of the engine compartment includes a side sill inner panel 11 and a side sill outer panel 12 disposed on the left side of the side sill inner panel 11, the side sill outer panel 12 includes an outer panel upper lap plate 121, an outer panel upper inclined plate 122, a middle plate 123, an outer panel lower inclined plate 124 and an outer lower lap plate 125 which are sequentially disposed from top to bottom, the outer panel upper inclined plate 122 is inclined to the left from top to bottom, and the outer panel lower inclined plate 124 is inclined to the left from bottom to top; the first overlapping edge 312 protrudes upward from the upper force transfer plate 311, the lower third overlapping edge protrudes downward from the lower force transfer cross plate 322, the first overlapping edge 312 is connected to both the outer panel upper overlapping plate 121 and the outer panel upper sloping plate 122, and the lower third overlapping edge is connected to both the outer panel lower sloping plate 124 and the outer lower overlapping plate 125. The hollow beam body is formed by the boundary beam inner plate 11 and the boundary beam outer plate 12, the contact area of the first overlap edge 312 and the boundary beam outer plate 12 can be increased by the outer plate upper overlap plate 121 and the outer plate upper inclined plate 122, the contact area of the third overlap edge and the boundary beam outer plate 12 can be increased by the outer plate lower inclined plate 124 and the external lower overlap plate 125, better welding manufacturability is achieved, and welding strength and energy absorption effects can be guaranteed.
In the present embodiment, as shown in fig. 3, the nacelle reinforcement beam assembly 2 includes a reinforcement beam front section and a reinforcement beam rear section disposed behind the reinforcement beam front section, a first cavity is disposed inside the reinforcement beam front section, a second cavity is disposed inside the reinforcement beam rear section, and the second cavity has a shape that is small in front and large in rear; the reinforcement beam front section comprises a reinforcement beam front section inner plate 22 and a reinforcement beam front section outer plate 23 arranged on the left side of the reinforcement beam front section inner plate 22, and the reinforcement beam rear section comprises a reinforcement beam rear section inner plate 24 and the reinforcement beam rear section outer plate 25 arranged on the left side of the reinforcement beam rear section inner plate 24. Engine compartment stiffening beam assembly 2 adopts the sectional type structure to stiffening beam anterior segment and stiffening beam back end all adopt split type structure, can only change part according to the structural requirement of different motorcycle types, improve the part commonality.
In the present embodiment, as shown in fig. 9, the reinforcement beam front section inner panel 22 includes a first L-shaped main body 221 and a front section inner panel upper overlapping edge 222 disposed on an upper side of the first L-shaped main body 221, the reinforcement beam front section outer panel 23 includes a second L-shaped main body 231, a front section outer panel upper overlapping edge 232 disposed on an upper side of the second L-shaped main body 231, and a front section outer panel lower overlapping edge 233 disposed on a lower side of the second L-shaped main body 231, the front section inner panel upper overlapping edge 222 is connected to the front section outer panel upper overlapping edge 232, the front section outer panel lower overlapping edge 233 is connected to a left portion of the first L-shaped main body 221, and the first L-shaped main body 221 and the second L-shaped main body 231 constitute a first cavity having a rectangular cross section.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. A vehicle body front end structure characterized in that: the engine room side beam assembly (1), the engine room reinforcing beam assembly (2) and the guide box assembly (3) are included; the engine compartment stiffening beam assembly (2) and the engine compartment boundary beam assembly (1) are arranged at intervals from left to right; the guide box assembly (3) comprises an upper connecting piece (31) and a lower connecting piece (32) arranged on the lower side of the upper connecting piece (31), the left side and the right side of the upper connecting piece (31) are respectively connected with the front part of the engine compartment reinforcing beam assembly (2) and the front part of the engine compartment boundary beam assembly (1), the left side and the right side of the lower connecting piece (32) are respectively connected with the front part of the engine compartment reinforcing beam assembly (2) and the front part of the engine compartment boundary beam assembly (1), and a cavity structure is formed among the engine compartment reinforcing beam assembly (2), the upper connecting piece (31), the engine compartment boundary beam assembly (1) and the lower connecting piece (32); the front end of the engine compartment reinforcing beam assembly (2) is provided with a front end mounting plate (21) used for being connected with a front collision cross beam assembly, and the rear part of the engine compartment reinforcing beam assembly (2) can be connected with an A-pillar assembly (4).
2. The vehicle body front end structure according to claim 1, characterized in that: the upper connecting piece (31) comprises an upper side force transfer plate (311), a first overlapping edge (312) used for being connected with the front portion of the engine compartment side beam assembly (1) and a second overlapping edge (313) used for being connected with the front portion of the engine compartment reinforcing beam assembly (2), and the first overlapping edge (312) and the second overlapping edge (313) are respectively arranged on the left side and the right side of the upper side force transfer plate (311).
3. The vehicle body front end structure according to claim 2, characterized in that: the lower connecting piece (32) comprises a lower force transmission longitudinal plate (321), a lower force transmission transverse plate (322), a third overlapping edge component (323) connected with the front part of the engine compartment side beam assembly (1), a fourth overlapping edge component (324) connected with the front part of the engine compartment reinforcing beam assembly (2) and a fifth overlapping edge (325) connected with the upper connecting plate, the lower force transmission longitudinal plate (321) is arranged above the rear side of the lower force transmission transverse plate (322) and forms an L-shaped structure, the third overlapping edge component (323) comprises an upper third overlapping edge arranged on the right side of the lower force transmission longitudinal plate (321) and a lower third overlapping edge arranged on the right side of the lower force transmission transverse plate (322), and the fourth overlapping edge component (324) comprises an upper fourth overlapping edge arranged on the left side of the lower force transmission longitudinal plate (321) and a lower transverse plate overlapping edge arranged on the left side of the lower force transmission transverse plate (322) The fifth overlapping edge (325) is arranged on the upper side of the lower force transmission longitudinal plate (321).
4. The vehicle body front end structure according to claim 3, characterized in that: the lower force transmission longitudinal plate (321) inclines from back to front in a direction away from the engine compartment side beam assembly (1); the included angle between the lower force transmission longitudinal plate (321) and the engine compartment boundary beam assembly (1) is alpha, wherein the alpha is more than or equal to 35 degrees and less than or equal to 45 degrees.
5. The vehicle body front end structure according to claim 3, characterized in that: the upper connecting piece (31) further comprises a sixth overlapping edge (314) arranged on the front side of the upper force transmission plate (311), the lower connecting piece (32) further comprises a seventh overlapping edge (326) arranged on the front side of the lower force transmission transverse plate (322), and a first support lug (211) used for being connected with the sixth overlapping edge (314) and a second support lug (212) used for being connected with the seventh overlapping edge (326) are arranged on the front end mounting plate (21).
6. The vehicle body front end structure according to claim 3, characterized in that: engine compartment boundary beam assembly (1) is in including boundary beam inner panel (11) and setting left boundary beam planking (12) of boundary beam inner panel (11), boundary beam planking (12) include from last to down lap joint board (121), planking on swash plate (122), middle part board (123), planking down swash plate (124) and outside lap joint plate (125) down on the planking that sets gradually, swash plate (122) is from last to down to the left bank on the planking, swash plate (124) are from supreme down to the left bank under the planking.
7. The vehicle body front end structure according to claim 6, characterized in that: the first overlapping edge (312) protrudes upwards from the upper side force transmission plate (311), the lower third overlapping edge protrudes downwards from the lower side force transmission transverse plate (322), the first overlapping edge (312) is simultaneously connected with the outer plate upper overlapping plate (121) and the outer plate upper inclined plate (122), and the lower third overlapping edge is simultaneously connected with the outer plate lower inclined plate (124) and the outer lower overlapping plate (125).
8. The vehicle body front end structure according to claim 1, characterized in that: the engine compartment reinforcing beam assembly (2) comprises a reinforcing beam front section and a reinforcing beam rear section arranged on the rear side of the reinforcing beam front section, wherein a first cavity is arranged inside the reinforcing beam front section, a second cavity is arranged inside the reinforcing beam rear section, and the second cavity is in a shape with a small front part and a large rear part.
9. The vehicle body front end structure according to claim 8, characterized in that: the stiffening beam front section comprises a stiffening beam front section inner plate (22) and a stiffening beam front section outer plate (23) arranged on the left side of the stiffening beam front section inner plate (22), and the stiffening beam rear section comprises a stiffening beam rear section inner plate (24) and a stiffening beam rear section outer plate (25) arranged on the left side of the stiffening beam rear section inner plate (24).
10. The vehicle body front end structure according to claim 9, characterized in that: the reinforcement beam front section inner plate (22) comprises a first L-shaped main body (221) and a front section inner plate upper overlapping edge (222) arranged on the upper side of the first L-shaped main body (221), the reinforcement beam front section outer plate (23) comprises a second L-shaped main body (231), a front section outer plate upper overlapping edge (232) arranged on the upper side of the second L-shaped main body (231) and a front section outer plate lower overlapping edge (233) arranged on the lower side of the second L-shaped main body (231), the front section inner plate upper overlapping edge (222) is connected with the front section outer plate upper overlapping edge (232), the front section outer plate lower overlapping edge (233) is connected with the left portion of the first L-shaped main body (221), and the first L-shaped main body (221) and the second L-shaped main body (231) form a first cavity with a rectangular cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110424477.2A CN113147908A (en) | 2021-04-20 | 2021-04-20 | Front end structure of vehicle body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110424477.2A CN113147908A (en) | 2021-04-20 | 2021-04-20 | Front end structure of vehicle body |
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| CN113147908A true CN113147908A (en) | 2021-07-23 |
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| CN202110424477.2A Pending CN113147908A (en) | 2021-04-20 | 2021-04-20 | Front end structure of vehicle body |
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2021
- 2021-04-20 CN CN202110424477.2A patent/CN113147908A/en active Pending
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Application publication date: 20210723 |