WO2019192390A1 - Body-in-white frame assembly - Google Patents

Body-in-white frame assembly Download PDF

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Publication number
WO2019192390A1
WO2019192390A1 PCT/CN2019/080287 CN2019080287W WO2019192390A1 WO 2019192390 A1 WO2019192390 A1 WO 2019192390A1 CN 2019080287 W CN2019080287 W CN 2019080287W WO 2019192390 A1 WO2019192390 A1 WO 2019192390A1
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WO
WIPO (PCT)
Prior art keywords
plate
pillar
wheel cover
rear wheel
reinforcing
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PCT/CN2019/080287
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French (fr)
Chinese (zh)
Inventor
劳兵
司超群
周士智
谢贵山
和丽梅
黄岗
Original Assignee
上汽通用五菱汽车股份有限公司
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Application filed by 上汽通用五菱汽车股份有限公司 filed Critical 上汽通用五菱汽车股份有限公司
Publication of WO2019192390A1 publication Critical patent/WO2019192390A1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D25/00Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D25/00Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08Front or rear portions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D27/00Connections between superstructure or understructure sub-units
    • B62D27/02Connections between superstructure or understructure sub-units rigid

Definitions

  • the present invention relates to a body-in-white frame assembly, and more particularly to a body-in-white frame assembly that enhances the connection strength of a white car.
  • the body-in-white frame assembly acts as the main body to withstand the load and resist the impact of the collision. Its design plays a decisive role in the strength, rigidity, mode, safety and durability of the vehicle body, which directly affects the user's riding experience and subjective feeling.
  • the common body-in-white body frame as shown in Fig. 1, includes a front body frame A', a front wheel cover assembly B', a side frame C', a sill assembly E' and a front wheel cover support assembly D'.
  • the front end frame A' (Fig. 1a) is shown to include: an upper curved beam column 10' and a front side frame 11', and the front wheel cover assembly B' (Fig.
  • the sill assembly E' (Fig. 1e) includes a sill outer reinforcement panel 27' and a rear wheel housing outer panel 28'.
  • the lower end of the upper curved beam column 10' and the front longitudinal beam 11' are fixedly connected by a solder joint 29', and the upper curved beam column 10' is designed as an open structure 30', which is connected with the front longitudinal beam 11'.
  • the weaker frontal column is easily torn, resulting in the front longitudinal beam 11' not participating in the collision, the deformation of the vehicle body is large, the acceleration signal received by the vehicle body is weak, and the airbag does not ignite, which affects passenger safety;
  • the front wheel cover outer panel reinforcing plate 12' and the A-pillar lower side outer panel 13' are connected by a second welding 31', and the A-pillar lower side outer panel 13' is thin (0.7 mm). Easy to weld, affecting the joint strength, and at the same time, it is easy to cause the chemical reaction of the spot weld sealant to produce toxic gas when welding, which affects the health of the operator;
  • the side wall side rail is provided with an A-pillar upper reinforcing plate 14' fixed between the side wall upper side beam outer panel 15' and the side wall upper side beam inner panel 16' to form a cavity structure, the cavity
  • the structure only penetrates to the left side of the upper end of the B-pillar 18', and the side-side upper side beam has only the side-side upper side beam outer plate 15' and the side-side upper side beam inner plate 16', resulting in poor continuity of the side-side upper side beam cavity, and no side collision due to side collision.
  • the frontal collision has a buffered energy absorption area, and only the A-pillar, B-pillar 18', side-side upper side beam, sill and door anti-collision bar are stressed.
  • the poor continuity of the side-side upper side beam cavity will cause the side column to easily hit the large body. Deformation and failure;
  • the right side of the side rail outer side panel 15' and the C-pillar upper joint are plate lap joint structures, and the rear wheel cover support plate 22' and the C-pillar upper reinforcing plate 23' are misaligned 17', the cavity Poor integrity, low joint stiffness;
  • the rear wheel cover upper reinforcing plate 24' extends to the rear wheel cover flange stop, and the rear wheel cover upper reinforcing plate 24' and the rear wheel cover support plate 22' are provided with overlapping portions 26', overlapping The portion 26' has a small amount of overlap, and the force transmission path is not smooth.
  • the lower end of the threshold is denatured or stress concentration occurs;
  • the sill outer reinforcing plate 27' and the rear wheel cover outer plate 28' have a disconnecting portion 25', the cavity consistency is poor, the force transmission path is not smooth, and the C-pillar lower joint rigidity is low, affecting the whole vehicle. Stiffness and modality.
  • the present invention has been made to solve the deficiencies in the prior art, and an object of the present invention is to provide a solution to the problem of weak connection between the up-bending beam and the longitudinal beam, and to realize that the front column colliding beam does not participate in collision and enhance the front column collision. Performance, while adding rigidity to the headlight mounting point, improves body safety for the body-in-white frame assembly.
  • a body-in-white frame assembly of the present invention includes a body frame body, a front end frame and two side frame frames, the front end frame being fixed to a front side of the body frame body, and the two side frame frames are respectively fixed to the body body
  • the left and right sides of the frame body are fixedly connected to the front ends of the two side frame frames respectively
  • the front end frame comprises two upper curved beam column reinforcing plates, and the two upper curved beam columns are reinforced.
  • the plates are respectively extended from top to bottom and fixed on the rear side of the curved beam column on the corresponding body.
  • a body-in-white frame assembly of the present invention may also be:
  • the left and right side edges of the two upper curved beam upright reinforcing plates and the corresponding left and right side edges of the upper curved beam standing column are respectively extended from top to bottom, and the inner sides of the two upper curved beam upright reinforcing plates are respectively corresponding to the corresponding a cavity closed from top to bottom is arranged between the inner side of the curved beam column, and the two upper curved beam column reinforcing plates and the corresponding lower end of the upright beam column respectively correspond to the corresponding front body longitudinal beam
  • the front and rear ends are fixed.
  • a front wheel cover outer plate reinforcing plate is disposed at the rear left and right ends of the front side frame, and the two side frame frames each include an A-pillar lower reinforcing plate, and the front wheel cover outer plate reinforcing plate is provided with a rear upper end a cover hinge mounting bracket, the inner rear end of the hood hinge mounting bracket is fixedly connected with the corresponding lower A-pillar reinforcing plate end by two-layer plate welding, and the A-pillar lower side wall is provided on the outer side of the A-pillar lower reinforcing plate
  • An outer panel, the outer rear end of the hair hood hinge mounting bracket is fixed to a corresponding A-pillar lower-side outer panel end, and the front wheel cover outer panel reinforcing panel rear end and the corresponding A-pillar lower side outer panel respectively The upper middle end is fixedly connected.
  • the outer rear end of the hood hinge mounting bracket and the corresponding outer side end of the lower side of the A-pillar are respectively fixed by three-layer plate welding, and the upper side of the rear end of the hood hinge mounting bracket and the corresponding A-pillar respectively
  • the front end of the lower side outer panel is fixed by three-layer plate welding, and the rear end of the front wheel outer panel reinforcing plate is respectively fixedly connected with the upper middle end of the corresponding lower side outer panel of the A-pillar.
  • the A-pillar upper reinforcing plate is provided with an A-pillar upper reinforcing plate
  • the body frame body further includes an upper side beam
  • the A-pillar upper reinforcing plate is provided with an A-pillar reinforcing extending plate on the A-pillar.
  • the reinforcing extension plates are respectively fixed on the upper side sill by the corresponding side sill upper side sill inner panel and the side sill upper side sill outer panel, and the A-pillar upper reinforced extension slab is respectively fixed on the corresponding side sill upper side sill inner panel and In the middle of the outer side of the side wall of the side sill, the reinforcing slab on the A-pillar is respectively provided with the front side of the inner side panel of the side sill and the inner side of the side sill of the side sill The closed cavity.
  • the A-pillar reinforcing extension plates respectively include a first extension plate and a second extension plate, the body frame body including a B-pillar, a C-pillar and a D-pillar, respectively, the first extension plate respectively from the corresponding top of the B-pillar a rear side extending to a corresponding front side of the C-pillar top end, the second extension plate extending from a rear side of the corresponding top end of the C-pillar to a corresponding lower end of the D-pillar, the first extension plate and the a second extension plate extending and fixed between the corresponding side wall upper side beam inner plate and the side wall upper side beam outer plate, wherein the first extension plate and the second extension plate respectively correspond to the side wall of the side wall respectively
  • a cavity closed from front to back is disposed between the inner side of the inner panel of the beam and the inner side of the outer side panel of the side wall of the side wall.
  • a rear wheel cover support plate is disposed on a lower side of the rear end of the first extension plate, and the rear wheel cover support plate is fixed by the rear wheel cover upper side inner plate and the rear wheel cover upper side outer plate
  • the rear wheel cover support plates are respectively extended and fixed between the corresponding rear wheel cover upper side inner plate and the rear wheel cover upper side outer plate, and the rear wheel cover support plate and the corresponding rear wheel A cavity closed from top to bottom is enclosed between the upper side inner panel of the cover and the upper outer side of the rear wheel cover.
  • a rear wheel cover is disposed at a lower end of the rear wheel cover support plate, the rear wheel cover includes a rear wheel cover outer plate, and the rear wheel cover support plate extends downward from a corresponding upper end of the C-pillar to the corresponding
  • the outer side of the rear wheel cover is provided with a fixing bracket for the rear shock absorber installation, and the body frame body further includes a rear beam, and the bottom of the fixing bracket is fixed to the rear beam.
  • the rear wheel cover support plate is provided with a rear wheel cover upper reinforcing plate, and the rear wheel cover upper reinforcing plate end overlaps with the corresponding inner side of the rear wheel cover support plate, and the fixed bracket is disposed correspondingly Under the reinforcement plate on the wheel cover.
  • a sill outer plate and a reinforcing plate are respectively disposed at a front lower portion of the rear wheel cover support plate, and the sill outer plates are respectively connected to the corresponding rear wheel cover outer plates through the corresponding reinforcing plates.
  • a body-in-white frame assembly of the present invention includes a body frame body, a front end frame and two side frame frames, the front end frame being fixed to a front side of the body frame body, and the two side frame frames are respectively fixed to the body body
  • the left and right sides of the frame body are fixedly connected to the front ends of the two side frame frames respectively
  • the front end frame comprises two upper curved beam column reinforcing plates, and the two upper curved beam columns are reinforced.
  • the plates are respectively extended from top to bottom and fixed on the rear side of the curved beam column on the corresponding body.
  • the traditional upper curved beam column opening structure is covered to form a closed structure, which solves the traditional upper curved beam column and
  • the front longitudinal beam connection is weak.
  • the opening structure of the traditional upper curved beam column is easily torn by the load, which makes the connection fail.
  • the traditional upper curved beam column is transmitted due to the connection failure during the transmission load.
  • the load can be effectively transmitted to the front longitudinal beam on the upper curved column.
  • the load is transmitted from the front longitudinal beam to other structural members to ensure that the vehicle body receives sufficient acceleration signals, and the airbag can be effectively ignited to effectively protect passenger safety.
  • front headlights are arranged in front of the left and right ends of the front longitudinal beam, because the front headlights are arranged in front of the front longitudinal beam, and the strength of the connection between the front longitudinal beam and the upper curved beam column is strengthened by the upper curved beam reinforcement plate, and the front is greatly increased.
  • the stiffness of the lamp mounting point improves passenger safety while increasing the overall weight reduction of the body-in-white.
  • FIG. 1 is a schematic structural view of a prior art body-in-white frame assembly.
  • Figure 1a is a partial enlarged view of Figure 1A'.
  • Figure 1b is a partial enlarged view of Figure 1 (hidden lower side periphery) B'.
  • Figure 1c is a partial enlarged view of Figure 1 (hidden lower side periphery) C'.
  • Figure 1d is a partial enlarged view of Figure 1 (hidden lower side periphery) D'.
  • Figure 1e is a partial enlarged view of Figure 1 (hidden lower side periphery) E'.
  • FIG. 2 is a schematic overall view of the body-in-white frame assembly of the present invention.
  • FIG 3 is a partial enlarged view of the front side (hidden lower side periphery) of the upper curved beam column connecting structure in the body-in-white frame assembly of the present invention.
  • Figure 4 is a cross-sectional view taken along line F-F of Figure 3;
  • Figure 5 is a partial enlarged view of the rear side (hidden lower side periphery) of the upper curved beam column connecting structure in the body-in-white frame assembly of the present invention.
  • Fig. 6 is a partially enlarged view showing the connection structure of the hair hood hinge mounting bracket and the A-pillar lower reinforcing plate in the body-in-white frame assembly of the present invention (hiding the lower side periphery).
  • Fig. 7 is a partially enlarged view showing the connection structure of the hood hinge mounting bracket and the lower side outer panel of the A-pillar in the body-in-white frame assembly of the present invention.
  • Figure 8 is a partial enlarged view of the front wheel cover outer panel reinforcing plate and the side wall assembly connecting structure (hiding lower side periphery) in the body-in-white frame assembly of the present invention.
  • Figure 9 is a partial enlarged view of the side wall upper side beam connecting structure (hiding lower side periphery) in the body-in-white frame assembly of the present invention.
  • Figure 10 is a cross-sectional view taken along line G-G of Figure 9.
  • Figure 11 is a cross-sectional view taken along line H-H of Figure 9.
  • Figure 12 is a partial enlarged view of the overlap portion (hidden lower side periphery) of the rear wheel cover upper reinforcing plate and the rear wheel cover support plate in the body-in-white frame assembly of the present invention.
  • Figure 13 is a partially enlarged view showing the connection structure (hidden lower side periphery) of the rear wheel cover support plate and the sill outer plate in the body-in-white frame assembly of the present invention.
  • Figure 14 is a cross-sectional view taken along line I-I of Figure 12;
  • Figure 15 is a schematic view showing the force transmission path (hidden lower side periphery) of the body-in-white frame assembly of the present invention.
  • Hair cover hinge mounting bracket 10 ...Second three-layer plate solder joint 11...A column lower reinforcement plate 12...A column lower side outer panel 13...Bolt 14...A Column-on reinforcing plate 15...first extension plate 16...second extension plate 17...side wall-mounted upper side beam outer panel 18...side wall-mounted upper side beam inner panel 19...rear wheel cover support panel 20;rear wheel cover upper side inner panel 21 ...rear wheel cover upper side outer panel 22...fixing bracket 23...rear wheel cover upper reinforcing plate 24...overlap 25...threshold outer panel 26...reinforcing plate 27...rear wheel cover outer panel 28...front pillar bump 29...top Pressure 30... side column touch 31...road surface
  • a body-in-white frame assembly of the present invention includes a body frame body, a front end frame and two side wall frames, the front end frame being fixed on the front side of the body frame body, two The side frames are respectively fixed on the left and right sides of the body frame body, and the left and right ends of the front frame are respectively fixedly connected to the front ends of the two side frame frames, and the front frame includes two upper curved beam column reinforcing plates. 2.
  • the two upper curved beam upright reinforcing plates 2 are respectively extended from the top to the bottom and fixed on the rear side of the corresponding body upper curved beam column 1.
  • the conventional upper curved beam column opening structure is covered to form a closed structure, which solves the conventional problem.
  • the curved beam column and the front longitudinal beam are weakly connected.
  • the opening structure of the traditional upper curved beam column is easily torn by the load, which makes the connection invalid.
  • the traditional upper curved beam column is in the process of transmitting load.
  • the connection fails and the transmission is interrupted, the other non-structural parts are deformed, the deformation of the vehicle body is large, and the load cannot be effectively transmitted to the front longitudinal beam or other structural parts of the vehicle body, so that the acceleration signal received by the vehicle body is small, and the airbag does not ignite. Affect the safety of passengers. Therefore, on the rear side of the upper curved beam column 1, there is a top-down upper curved beam column reinforcing plate 2 covering the traditional upper curved beam column opening, the upper curved beam column 1 and the upper curved beam column reinforcing plate 2 A closed structure is formed to strengthen the joint strength of the upper curved beam column 1.
  • the upper curved beam column 1 When a frontal collision occurs, the upper curved beam column 1 receives the load, and because there is sufficient strength, the connection failure does not occur, and the load can be on the upper curved beam column 1 Effectively transmitted to the front longitudinal beam 3, the load is transmitted from the front longitudinal beam 3 to other structural members to ensure that the vehicle body receives sufficient acceleration signals, and the airbag can be effectively ignited to effectively protect passenger safety.
  • a front headlight is arranged in front of the left and right ends of the front longitudinal beam 3, because the front headlight is arranged in front of the front longitudinal beam 3, and the strength of the front longitudinal beam 3 and the upper curved beam column 1 is strengthened by the upper curved beam column reinforcing plate 2.
  • the advantage of the prior art is that the problem that the upper curved column 1 and the front longitudinal beam 3 are weakly connected is solved, the front column colliding beam is involved in the load transmission, the front column collision performance is improved, and the passenger safety is improved. It is also possible to fix the front side lower end of the two curved upper beam columns 1 and the front left side of the corresponding front longitudinal beam 3 respectively by two-layer plate welding, and the front side lower ends of the two body upper curved beam columns 1 and the front side of the front longitudinal beam 3 respectively.
  • the right end may be fixed by three first two-layer plate-shaped solder joints 5, and the right side of the lower end of the curved beam column 1 and the upper left end of the front longitudinal beam 3 are fixed by two-layer plate welding, and the lower end of the lower end of the curved beam column 1 on the vehicle body is
  • the upper left end of the front side member 3 can be fixed by two first two-layer plate joints 5 to enhance the welding firmness.
  • the rear side of the upper end of the upper curved beam reinforcing plate 2 and the rear side of the front longitudinal beam 3 can be fixed by three-layer plate welding, and the rear side of the lower curved end of the upper curved column reinforcing plate 2 and the front longitudinal beam sealing plate on the rear side of the front longitudinal beam 3 It can be fixed by two first three-layer plate solder joints 6 to enhance the welding firmness.
  • the body-in-white frame assembly of the present invention may further be based on the technical solutions described above: the left and right edges of the two upper curved beam pillar reinforcing plates 2 respectively And the left and right side edges of the corresponding curved upper beam 1 are extended and fixed from top to bottom, and the inner sides of the two upper curved beam reinforcing plates 2 are respectively disposed between the inner side of the corresponding upper curved column 1 and the inner side of the upper curved column 1
  • the upper and lower closed cavities, the two upper curved beam upright reinforcing plates 2 and the corresponding lower end of the upper body curved column 1 are respectively fixed to the front and rear ends of the corresponding body front side members 3 respectively.
  • the cavity space is fully utilized.
  • the load of the front longitudinal beam 3 can be effectively dispersed by the cavity, and the structure of the cavity is air, without any physical structure, the load is transmitted in the cavity without any physical obstruction, accelerating the transmission of the load, effectively avoiding the front column collision
  • the longitudinal beam is concentrated, resulting in failure of the connection between the upper curved column 1 and the front longitudinal beam 3.
  • the acceleration signal received by the vehicle body is small, the airbag does not ignite, affecting passenger safety, further enhancing the performance of the front column collision, effectively dispersing and simultaneously increasing whiteness.
  • the overall body weight level is provided.
  • the front wheel cover 3 is provided with a front wheel cover at the left and right ends.
  • the outer panel reinforcing plate 8 and the two side wrapping frames each comprise an A-pillar lower reinforcing plate 11
  • the rear wheel outer panel reinforcing plate 8 is provided with a hair hood hinge mounting bracket 9 at the upper rear end, and the hair hood hinge is installed
  • the inner rear end of the bracket 9 and the corresponding upper end of the A-pillar lower reinforcing plate 11 are fixedly connected by two-layer plate welding, and the outer side of the A-pillar lower reinforcing plate 11 is provided with an A-pillar lower side outer panel 12, the hair cover
  • the outer rear end of the hinge mounting bracket 9 is fixed to the upper end of the corresponding A-pillar lower side outer panel 12, and the rear end of the front wheel cover outer panel reinforcing plate 8 is respectively fixed with the upper end of the corresponding A-pillar lower side outer panel 12.
  • the right upper end of the front wheel cover outer panel reinforcing plate 8 is provided with a hood hinge mounting bracket 9, firstly through the inner side rear end of the hood hinge mounting bracket 9 and the upper end of the corresponding A-pillar lower reinforcing plate 11 respectively through two layers of plate welding Connected, and then fixedly connected to the inner side of the inner side of the lower side of the A-pillar by the outer cover of the A-pillar hinge mounting bracket 9 to avoid the conventional front wheel cover outer plate reinforcing plate directly passing through the second welding and the A-pillar lower side outer plate fixing Connection, the traditional side panel outer panel is thin, the thickness is only 0.7, the side panel outer panel includes the A-pillar lower side outer panel, and the thickness of the lower side of the A-pillar is only 0.7mm, which is easy to weld and affect the connection strength.
  • the use of two-welded welding is easy to cause the chemical reaction of the spot welding sealant to produce toxic gas, which affects the health of the operator. Therefore, without changing the BOP, firstly, the inner rear end of the hood hinge mounting bracket 9 is respectively fixedly connected with the upper end of the corresponding A-pillar lower reinforcing plate 11 through two-layer plate welding, and the welding strength is ensured, and the use is effectively avoided.
  • the hood hinge mounting bracket 9 is fixed to the upper side of the corresponding A-pillar lower side outer panel 12, and finally the front wheel
  • the rear ends of the cover outer panel reinforcing plates 8 are respectively fixedly connected to the upper ends of the corresponding A-pillar lower side outer panels 12.
  • the inner rear end of the hood hinge mounting bracket 9 can also be fixedly connected to the upper end of the corresponding A-pillar lower reinforcing plate 11 through two second two-layer plate-shaped solder joints 7, thereby further improving the connection strength.
  • a further preferred technical solution is that the outer rear end of the hood hinge mounting bracket 9 and the corresponding upper end of the lower side outer panel 12 of the A-pillar are respectively fixed by three-layer plate welding.
  • the upper end of the rear end of the cover hinge mounting bracket 9 and the corresponding front end of the lower side outer panel 12 of the A-pillar are respectively fixed by three-layer plate welding, and the rear end of the front wheel cover outer plate reinforcing plate 8 and the corresponding end respectively
  • the upper end of the lower side outer panel 12 of the A-pillar is fixedly connected by bolts 13.
  • the inner rear end of the hood hinge mounting bracket 9 is respectively fixedly connected with the upper end of the corresponding A-pillar lower reinforcing plate 11 through two layers of plate welding, and then the outer rear end of the hood hinge mounting bracket 9 is corresponding to the corresponding A.
  • the upper ends of the lower side outer panel 12 are respectively fixed by three-layer plate welding, and finally the rear ends of the front wheel outer panel reinforcing plates 8 are respectively fixedly connected to the upper ends of the corresponding lower side outer panels 12 of the A-pillars by bolts 13. It avoids the traditional one-piece front wheel cover outer plate reinforcement plate and the A-pillar lower side outer plate through two welding welding.
  • the traditional side wall outer plate is thin and the thickness is only 0.7mm, and the side outer plate includes the A-pillar lower side wall.
  • the thickness of the outer plate and the outer side of the A-pillar is also thin, and it is only 0.7mm thick.
  • the second welding connection is easy to be welded. Therefore, the welding strength is strengthened by the plate welding, and the chemical reaction of the spot welding sealant is also avoided. Produces toxic gases, affects the health of operators and improves safety during welding.
  • the outer rear end of the hood hinge mounting bracket 9 and the corresponding upper end of the lower side outer panel 12 of the A-pillar are respectively fixedly connected by two second three-layer slab joints 10, and the outer upper ends of the hood hinge mounting brackets 9 are respectively
  • the front side of the upper end of the lower side outer panel 12 of the corresponding A-pillar is fixedly connected by a second three-layer plate-shaped solder joint 10, and four bolts 13 may be used.
  • the rear lower end of the front wheel cover outer plate reinforcing plate 8 is fixed by two bolts 13.
  • the front upper end of the front wheel shroud outer panel reinforcing plate 8 is fixed to the front upper end of the lower side outer panel 12 of the A-pillar by two bolts 13.
  • the body-in-white frame assembly of the present invention can also be based on the technical solution described above: the upper end of the A-pillar under-reinforcing plate 11 is provided with an A-pillar reinforcement.
  • the plate body 14 further includes an upper side beam, and the A-pillar upper reinforcing plate 14 is provided with an A-pillar upper reinforcing extending plate, and the A-pillar reinforcing extending plate passes through the corresponding side surrounding upper side beam inner plate respectively.
  • the A-pillar upper reinforcing extension plate is respectively fixed to the corresponding side wall upper side beam inner panel 18 and the side wall upper side beam outer panel 17
  • the A-pillar reinforcing extension plate is respectively provided with a cavity closed from the front to the rear between the inner side of the corresponding side wall inner side panel 18 and the inner side of the side wall upper side outer panel 17.
  • a reinforcing column on the A-pillar is arranged on the rear side of the reinforcing plate 14 on the A-pillar, and the front and rear sides of the reinforcing plate are reinforced on the front side of the corresponding side wall by the A-pillar and the side-side outer plate 17 of the side beam.
  • a cavity closed from front to back is arranged between the inner side, and the cavity space is fully utilized, and the structure of the cavity is air, without any physical structure, and the load is transmitted in the cavity without any physical obstruction, accelerating the transmission of the load.
  • the utility model can effectively avoid the stress concentration of the longitudinal beam when the front column is touched, and the load on the side wall side rail can be effectively dispersed to other structural parts of the vehicle body through the cavity, the cavity can effectively disperse the load of the side beam, and effectively avoid the side column collision.
  • the side beam generates force concentration, improves the collision safety performance of the white car body, avoids large body deformation and failure problems in the side column collision situation, improves the light body level of the white body and can transmit and disperse the side collision energy, and enhance the side column collision. Performance and top pressure performance.
  • a further preferred technical solution based on the foregoing technical solutions is that the A-pillar reinforcing extension plates respectively comprise a first extension plate 15 and a second extension plate 16, the body frame body comprising a B-pillar, a C-pillar and a D-pillar
  • the first extension plate 15 extends from the rear side of the corresponding B-pillar top end to the corresponding front side of the C-pillar top end
  • the second extension plate 16 respectively extends from the rear side of the corresponding C-pillar top end.
  • the first extension plate 15 and the second extension plate 16 are extended and fixed between the corresponding side wall upper side beam inner panel 18 and the 15 side side upper side beam outer panel 17
  • the first extension plate 15 and the second extension plate 16 are respectively disposed between the inner side of the corresponding side wall inner side panel 18 and the inner side of the 15 side side upper side outer panel 17
  • the closed cavity In this way, when the column is hit on the side, the continuity of the side wall of the side wall from the upper end of the A-pillar to the upper end of the D-pillar is effectively ensured, and the load of the side-side side beam is effectively transmitted to the B-pillar and C by the continuity of the cavity.
  • the force is concentrated on the side sill of the side wall when the side column is touched.
  • the traditional A-pillar reinforced plate structure only penetrates the B-pillar, and the side-side upper beam cavity has poor continuity, resulting in no side impact.
  • the frontal collision has a buffered energy absorption area, and only the A-pillar, B-pillar, side-side upper side beam, sill and door anti-collision bar are stressed.
  • the poor continuity of the side-side upper side beam cavity will cause the side column to be easily deformed and large body deformation. Invalid issues.
  • the complete and continuous side wall cavity structure can effectively transmit and disperse the side collision energy while improving the light weight level of the body-in-white, improve the side column collision performance and the compression resistance performance, and improve the light body level of the body-in-white. Effectively transmits and disperses side impact energy, improving side column impact performance and compression resistance.
  • a further preferred technical solution based on the foregoing technical solution is that the rear side of the rear end of the first extension plate 15 is provided with a rear wheel cover support plate 19, and the rear wheel cover support plate 19 passes through the rear wheel cover.
  • the inner panel 20 and the rear wheel cover upper side outer panel 21 are fixed on the corresponding C-pillars, and the rear wheel cover support panels 19 are respectively extended and fixed to the corresponding rear wheel cover upper side inner panel 20 and the rear wheel cover. Between the upper side outer panel 21, the rear wheel cover support plate 19 and the corresponding rear wheel cover upper side inner panel 20 and the rear wheel cover upper side outer panel 21 are arranged from the top to the top Lower closed cavity.
  • a cavity closed from top to bottom is surrounded by the rear wheel cover support plate 19 and the corresponding rear wheel cover upper side inner panel 20 and the rear wheel cover upper side outer panel 21, and
  • the wheel cover support plate 19 runs through the entire C-pillar, ensuring the continuity of the entire C-pillar, and the side load is effectively transmitted through the cavity, because there is no physical resistance in the cavity structure, and when the load occurs, the load can pass through the cavity structure quickly. Passing, improving the light weight of the body-in-white while effectively transmitting and dispersing the side rear wheel cover collision load, and improving the column collision performance at the side rear wheel cover.
  • the rear wheel cover support plate 19 is provided with a rear wheel cover at a lower end thereof, and the rear wheel cover includes a rear wheel cover outer plate 27, and the rear wheel cover support plate. 19 extending downward from the corresponding upper end of the C-pillar to the outer side of the corresponding rear wheel cover, and the rear wheel cover outer plate 27 is provided with a fixing bracket 22 for rear shock absorber mounting, the body frame body A rear girders are also included, and the bottom of the fixing bracket 22 is fixed to the rear girders.
  • the rear wheel cover support plate 19 extends downward from the upper end of the corresponding C-pillar to the outer side of the corresponding rear wheel cover outer plate 27, respectively, so as to avoid the displacement of the conventional rear wheel cover support plate and the reinforcing plate on the C-pillar, and the cavity generated. Poor overall performance and low joint rigidity. Therefore, the integrated rear wheel cover support plate 19 reinforces the continuity of the C-pillar, ensuring that the rear wheel cover support plate 19 continuously extends from the upper end of the C-pillar to the outer side of the rear wheel cover outer plate 27, and the side load is effectively transmitted through the cavity. On the rear wheel cover, the force transmission path is ensured to be smoother.
  • the bottom of the fixed bracket 22 installed by the rear shock absorber can be fixedly connected with the rear beam by the second welding, and the stability of the fixing bracket 22 and the rear beam connection is strengthened.
  • Two fixing brackets 22 for rear shock absorber mounting are respectively disposed on the inner side of the rear wheel cover, and two fixing brackets 22 for rear shock absorber mounting are symmetrically mounted.
  • a further preferred technical solution on the basis of the foregoing technical solutions is that the rear wheel cover support plate 19 is provided with a rear wheel cover upper reinforcing plate 23, and the rear wheel cover upper reinforcing plate 23 upper end and the corresponding rear portion The inside of the wheel house support plate 19 is overlapped, and the fixing bracket 22 is disposed below the corresponding rear wheel cover upper reinforcing plate 23.
  • the height of the reinforcing plate 23 on the rear wheel cover is increased, and the overlapping amount 24 of the reinforcing plate 23 and the rear wheel cover supporting plate 19 on the rear wheel cover is increased, and the overlapping height can be 160 mm.
  • the reinforcing plate on the conventional rear wheel cover only extends to the rear. The wheel cover is stopped at the flange, and the rear plate cover has less overlap with the rear wheel cover support plate cavity, and the force transmission road force is not normal. When the severe working condition is encountered, the threshold load cannot be effectively transmitted, and the lower end of the threshold is easily deformed or Stress concentration occurs.
  • the rear wheel cover support plate extends from the upper end of the C-pillar to the rear wheel cover outer plate 27 and the corresponding rear wheel cover support plate 19 and the inner rear wheel cover upper reinforcing plate 23 and the lower rear shock-absorbing mounting fixing bracket 22
  • the bottom of the fixing bracket 22 and the rear girders are fixed, thereby ensuring the continuity and integrity of the structure of the rear side wall of the vehicle body.
  • a further preferred technical solution based on the foregoing technical solution is that the front wheel cover support plate 19 is provided with a sill outer plate 25 and a reinforcing plate 26, and the sill outer plate 25 respectively passes the corresponding The strong plate 26 is coupled to the corresponding rear wheel house outer panel 27.
  • the sill outer panel 25 is respectively connected to the corresponding rear wheel cover outer panel 27 through the reinforcing plate 26, which solves the problem that the conventional sill outer panel and the rear wheel hood outer panel are disconnected, the cavity consistency is poor, and the transmission force is not smooth. . Therefore, the joint rigidity of the C-pillar lower joint to the front and rear body is strengthened, and the first-order torque mode and the first-order bending mode of the body-in-white are improved, thereby improving the side column collision performance.
  • the body-in-white structure forms a complete cage structure, the welding process is safer and healthier, and the upper and lower body bodies are connected more closely, and the force transmission path is More, it can more effectively transmit and disperse the impact force and road surface excitation during collision or normal driving, and improve the performance of the column in the direction of the white body front column and the side column in the direction of 30; Compressive performance, top compressive strength analysis
  • the rigid wall displacement is 50mm
  • the resistive top load is increased from about 33KN to about 43KN
  • the torsional stiffness of the white body is increased by 1780Nm/deg, the bending stiffness is increased by 1051N/mm
  • the bending mode is increased by 1.43 Hz, the first-order torsional mode is increased by 1.93 Hz, and the NVH performance is improved
  • the body-in-white light weight coefficient is increased from 5.11 to 4.75 and the jog of the rear shock absorber mounting bracket

Abstract

A body-in-white frame assembly, comprising a vehicle frame body, a front-end frame, and two side enclosing frames. The front-end frame is fixed to a front side of the vehicle frame body. The two side enclosing frames are respectively fixed to a left side surface and a right side surface of the vehicle frame body. A left end and a right end of the front-end frame are respectively fixedly connected to front ends of the two side enclosing frames. The front-end frame comprises two upper curved beam column reinforcing plates (2). The two upper curved beam column reinforcing plates (2) extend downwards, and are respectively fixed on rear sides of corresponding upper curved beam columns (1) on a vehicle body. The body-in-white frame assembly resolves the issue of a weak connection between an upper curved beam column and a front longitudinal beam, prevents the longitudinal beam from being involved in a front column collision, and improves front column collision performance and the rigidity of a headlight mounting point, thereby improving passenger safety.

Description

一种白车身框架总成Body-in-white frame assembly 技术领域Technical field
本发明涉及一种白车身框架总成,特别是涉及一种加强白车连接强度的白车身框架总成。The present invention relates to a body-in-white frame assembly, and more particularly to a body-in-white frame assembly that enhances the connection strength of a white car.
背景技术Background technique
白车身框架总成作为整车承受载荷、抵御碰撞冲击的主体,其设计对车身强度、刚度、模态、安全、耐久等性能起决定性作用,直接影响着用户的乘坐体验和主观感受。目前,常见的乘用车型白车身框架,如图1所示,包括车身前端框架A′、前轮罩组件B′、侧围框架C′、门槛组件E′和前轮罩支撑组件D′连接形成,所示前端框架A′(如图1a)包括:上弯梁立柱10′和前纵梁11′,前轮罩组件B′(如图1b)包括:前轮罩外板加强板12′和A柱下侧围外板13′,侧围框架C′(如图1c)包括A柱上加强板14′、侧围上边梁外板15′、侧围上边梁内板16′、C柱17′、B柱18′、后轮罩支撑板22′以及C柱上加强板23′,前轮罩支撑组件D′(如图1d)包括后轮罩上加强板24′以及重叠部26′,门槛组件E′(如图1e)包括门槛外加强板27′和后轮罩外板28′。上述部件在设计过程中,往往存在以下不足:The body-in-white frame assembly acts as the main body to withstand the load and resist the impact of the collision. Its design plays a decisive role in the strength, rigidity, mode, safety and durability of the vehicle body, which directly affects the user's riding experience and subjective feeling. At present, the common body-in-white body frame, as shown in Fig. 1, includes a front body frame A', a front wheel cover assembly B', a side frame C', a sill assembly E' and a front wheel cover support assembly D'. Formed, the front end frame A' (Fig. 1a) is shown to include: an upper curved beam column 10' and a front side frame 11', and the front wheel cover assembly B' (Fig. 1b) comprises: a front wheel cover outer plate reinforcing plate 12' And the A-pillar lower side outer panel 13', the side wall frame C' (as shown in Fig. 1c) includes an A-pillar upper reinforcing plate 14', a side surrounding upper side beam outer plate 15', a side surrounding upper side beam inner plate 16', a C-pillar 17', B-pillar 18', rear wheel cover support plate 22' and C-pillar upper reinforcement plate 23', front wheel house support assembly D' (Fig. 1d) including rear wheel cover upper reinforcement plate 24' and overlapping portion 26' The sill assembly E' (Fig. 1e) includes a sill outer reinforcement panel 27' and a rear wheel housing outer panel 28'. In the design process of the above components, the following shortcomings often exist:
1.如图1a所示,上弯梁立柱10′下端与前纵梁11′通过焊点29′固定连接,上弯梁立柱10′设计成开口结构30′,与前纵梁11′连接性能较弱,正面柱碰易被撕开,导致前纵梁11′不参与碰撞,车身变形大,车身接收的加速度信号薄弱,容易发生气囊不点火,影响乘客安全;1. As shown in Fig. 1a, the lower end of the upper curved beam column 10' and the front longitudinal beam 11' are fixedly connected by a solder joint 29', and the upper curved beam column 10' is designed as an open structure 30', which is connected with the front longitudinal beam 11'. The weaker frontal column is easily torn, resulting in the front longitudinal beam 11' not participating in the collision, the deformation of the vehicle body is large, the acceleration signal received by the vehicle body is weak, and the airbag does not ignite, which affects passenger safety;
2.如图1b所示,前轮罩外板加强板12′与A柱下侧围外板13′通过二保焊31′连接,A柱下侧围外板13′厚度薄(0.7mm)易焊穿,影响连接强度,同时焊接时也容易导致点焊密封胶发生化学反应产生有毒气体,影响操作人员身体健康;2. As shown in Fig. 1b, the front wheel cover outer panel reinforcing plate 12' and the A-pillar lower side outer panel 13' are connected by a second welding 31', and the A-pillar lower side outer panel 13' is thin (0.7 mm). Easy to weld, affecting the joint strength, and at the same time, it is easy to cause the chemical reaction of the spot weld sealant to produce toxic gas when welding, which affects the health of the operator;
3.如图1c所示,侧围上边梁设有A柱上加强板14′固定在侧围上边梁外板15′和侧围上边梁内板16′之间,形成腔体结构,腔体结构只贯通到B柱18′上端左侧,侧围上边梁只有侧围上边梁外板15′和侧围上边梁内板16′,导致侧围上边梁腔体连续性差,由于侧面碰撞没有像正面碰撞有缓冲吸能区域,仅靠A柱、B柱18′、侧围上边梁、门槛以及车门防撞杆受力,侧围上边梁腔体连续性差将导致侧面柱碰容易出现大的车身变形和失效;3. As shown in Fig. 1c, the side wall side rail is provided with an A-pillar upper reinforcing plate 14' fixed between the side wall upper side beam outer panel 15' and the side wall upper side beam inner panel 16' to form a cavity structure, the cavity The structure only penetrates to the left side of the upper end of the B-pillar 18', and the side-side upper side beam has only the side-side upper side beam outer plate 15' and the side-side upper side beam inner plate 16', resulting in poor continuity of the side-side upper side beam cavity, and no side collision due to side collision. The frontal collision has a buffered energy absorption area, and only the A-pillar, B-pillar 18', side-side upper side beam, sill and door anti-collision bar are stressed. The poor continuity of the side-side upper side beam cavity will cause the side column to easily hit the large body. Deformation and failure;
4.如图1c所示,侧围上边梁外板15′右端与C柱上接头为平板搭接结构, 后轮罩支撑板22′与C柱上加强板23′存在错位17′,腔体整体性差,接头刚度低;4. As shown in Fig. 1c, the right side of the side rail outer side panel 15' and the C-pillar upper joint are plate lap joint structures, and the rear wheel cover support plate 22' and the C-pillar upper reinforcing plate 23' are misaligned 17', the cavity Poor integrity, low joint stiffness;
5.如图1d所示,后轮罩上加强板24′延伸至后轮罩翻边处停止,后轮罩上加强板24′与后轮罩支撑板22′设有重叠部26′,重叠部26′的重叠量少,传力路径不通畅,经历恶劣工况时容易导致门槛下端变性或出现应力集中;5. As shown in FIG. 1d, the rear wheel cover upper reinforcing plate 24' extends to the rear wheel cover flange stop, and the rear wheel cover upper reinforcing plate 24' and the rear wheel cover support plate 22' are provided with overlapping portions 26', overlapping The portion 26' has a small amount of overlap, and the force transmission path is not smooth. When subjected to severe working conditions, the lower end of the threshold is denatured or stress concentration occurs;
6.如图1e所示,门槛外加强板27′与后轮罩外板28′存在断开部25′,腔体一致性差,传力路径不通畅,C柱下接头刚度低,影响整车刚度及模态。6. As shown in FIG. 1e, the sill outer reinforcing plate 27' and the rear wheel cover outer plate 28' have a disconnecting portion 25', the cavity consistency is poor, the force transmission path is not smooth, and the C-pillar lower joint rigidity is low, affecting the whole vehicle. Stiffness and modality.
发明内容Summary of the invention
本发明是为了解决现有技术中的不足而完成的,本发明的目的是提供一种解决上弯梁立柱与纵梁连接薄弱的问题,实现正面柱碰纵梁不参与碰撞,提升正面柱碰性能,同时增加前大灯安装点的刚度,提高乘客安全性的白车身框架总成。The present invention has been made to solve the deficiencies in the prior art, and an object of the present invention is to provide a solution to the problem of weak connection between the up-bending beam and the longitudinal beam, and to realize that the front column colliding beam does not participate in collision and enhance the front column collision. Performance, while adding rigidity to the headlight mounting point, improves body safety for the body-in-white frame assembly.
本发明的一种白车身框架总成,包括车身框架本体、前端框架和两个侧围框架,所述前端框架固定在车身框架本体前侧,两个所述侧围框架分别固定在所述车身框架本体左右两侧面上,所述前端框架左右两端分别与两个所述侧围框架前端固定连接,所述前端框架包括两个上弯梁立柱加强板,两个所述上弯梁立柱加强板分别由上至下延伸固定在对应的车身上弯梁立柱后侧。A body-in-white frame assembly of the present invention includes a body frame body, a front end frame and two side frame frames, the front end frame being fixed to a front side of the body frame body, and the two side frame frames are respectively fixed to the body body The left and right sides of the frame body are fixedly connected to the front ends of the two side frame frames respectively, and the front end frame comprises two upper curved beam column reinforcing plates, and the two upper curved beam columns are reinforced. The plates are respectively extended from top to bottom and fixed on the rear side of the curved beam column on the corresponding body.
本发明的一种白车身框架总成还可以是:A body-in-white frame assembly of the present invention may also be:
两个所述上弯梁立柱加强板左右两侧边缘分别与对应的车身上弯梁立柱左右两侧边缘由上至下延伸固定,两个所述上弯梁立柱加强板内侧分别与对应的所述车身上弯梁立柱内侧之间围设有由上至下封闭的腔体,两个所述上弯梁立柱加强板和对应的所述车身上弯梁立柱下端分别与对应的车身前纵梁前后两端固定。The left and right side edges of the two upper curved beam upright reinforcing plates and the corresponding left and right side edges of the upper curved beam standing column are respectively extended from top to bottom, and the inner sides of the two upper curved beam upright reinforcing plates are respectively corresponding to the corresponding a cavity closed from top to bottom is arranged between the inner side of the curved beam column, and the two upper curved beam column reinforcing plates and the corresponding lower end of the upright beam column respectively correspond to the corresponding front body longitudinal beam The front and rear ends are fixed.
所述前纵梁左右两端后方均设有前轮罩外板加强板,两个所述侧围框架均包括A柱下加强板,所述前轮罩外板加强板后上端均设有发罩铰链安装支架,所述发罩铰链安装支架内侧后端与对应的所述A柱下加强板上端通过两层板式焊接固定连接,所述A柱下加强板外侧均设有A柱下侧围外板,所述发罩铰链安装支架外侧后端与对应的A柱下侧围外板上端固定,所述前轮罩外板加强板后端分别与对应的所述A柱下侧围外板中上端固定连接。A front wheel cover outer plate reinforcing plate is disposed at the rear left and right ends of the front side frame, and the two side frame frames each include an A-pillar lower reinforcing plate, and the front wheel cover outer plate reinforcing plate is provided with a rear upper end a cover hinge mounting bracket, the inner rear end of the hood hinge mounting bracket is fixedly connected with the corresponding lower A-pillar reinforcing plate end by two-layer plate welding, and the A-pillar lower side wall is provided on the outer side of the A-pillar lower reinforcing plate An outer panel, the outer rear end of the hair hood hinge mounting bracket is fixed to a corresponding A-pillar lower-side outer panel end, and the front wheel cover outer panel reinforcing panel rear end and the corresponding A-pillar lower side outer panel respectively The upper middle end is fixedly connected.
所述发罩铰链安装支架外侧后端与对应的所述A柱下侧围外板上端分别通过三层板式焊接固定,所述发罩铰链安装支架后端上侧分别与对应的所述A柱下侧围外板上侧前端通过三层板式焊接固定,所述前轮罩外板加强板后端分别与对应的所述A柱下侧围外板中上端通过螺栓固定连接。The outer rear end of the hood hinge mounting bracket and the corresponding outer side end of the lower side of the A-pillar are respectively fixed by three-layer plate welding, and the upper side of the rear end of the hood hinge mounting bracket and the corresponding A-pillar respectively The front end of the lower side outer panel is fixed by three-layer plate welding, and the rear end of the front wheel outer panel reinforcing plate is respectively fixedly connected with the upper middle end of the corresponding lower side outer panel of the A-pillar.
所述A柱下加强板上端均设有A柱上加强板,所述车身框架本体还包括上边梁,所述A柱上加强板后方均设有A柱上加强延伸板,所述A柱上加强延伸板分别通过对应的侧围上边梁内板和侧围上边梁外板固定在所述上边梁上,所述A 柱上加强延伸板分别固定在对应的所述侧围上边梁内板和所述侧围上边梁外板的中间,所述A柱上加强延伸板分别与对应的所述侧围上边梁内板内侧和所述侧围上边梁外板内侧之间围设有由前至后封闭的腔体。The A-pillar upper reinforcing plate is provided with an A-pillar upper reinforcing plate, the body frame body further includes an upper side beam, and the A-pillar upper reinforcing plate is provided with an A-pillar reinforcing extending plate on the A-pillar. The reinforcing extension plates are respectively fixed on the upper side sill by the corresponding side sill upper side sill inner panel and the side sill upper side sill outer panel, and the A-pillar upper reinforced extension slab is respectively fixed on the corresponding side sill upper side sill inner panel and In the middle of the outer side of the side wall of the side sill, the reinforcing slab on the A-pillar is respectively provided with the front side of the inner side panel of the side sill and the inner side of the side sill of the side sill The closed cavity.
所述A柱上加强延伸板分别包括第一延伸板和第二延伸板,所述车身框架本体包括B柱、C柱和D柱,所述第一延伸板分别从对应的所述B柱顶端后侧延伸至对应的所述C柱顶端前侧,所述第二延伸板分别从对应的所述C柱顶端后侧延伸至对应的所述D柱下端,所述第一延伸板和所述第二延伸板延伸固定在对应的所述侧围上边梁内板与所述侧围上边梁外板中间,所述第一延伸板和所述第二延伸板分别与对应的所述侧围上边梁内板内侧和所述侧围上边梁外板内侧之间围设有由前至后封闭的腔体。The A-pillar reinforcing extension plates respectively include a first extension plate and a second extension plate, the body frame body including a B-pillar, a C-pillar and a D-pillar, respectively, the first extension plate respectively from the corresponding top of the B-pillar a rear side extending to a corresponding front side of the C-pillar top end, the second extension plate extending from a rear side of the corresponding top end of the C-pillar to a corresponding lower end of the D-pillar, the first extension plate and the a second extension plate extending and fixed between the corresponding side wall upper side beam inner plate and the side wall upper side beam outer plate, wherein the first extension plate and the second extension plate respectively correspond to the side wall of the side wall respectively A cavity closed from front to back is disposed between the inner side of the inner panel of the beam and the inner side of the outer side panel of the side wall of the side wall.
所述第一延伸板后端下侧均设有后轮罩支撑板,所述后轮罩支撑板通过后轮罩上侧围内板和后轮罩上侧围外板固定在对应的所述C柱上,所述后轮罩支撑板分别延伸固定在对应的后轮罩上侧围内板和后轮罩上侧围外板中间,所述后轮罩支撑板与对应的所述后轮罩上侧围内板和所述后轮罩上侧围外板之间围设有由上至下封闭的腔体。a rear wheel cover support plate is disposed on a lower side of the rear end of the first extension plate, and the rear wheel cover support plate is fixed by the rear wheel cover upper side inner plate and the rear wheel cover upper side outer plate On the C-pillar, the rear wheel cover support plates are respectively extended and fixed between the corresponding rear wheel cover upper side inner plate and the rear wheel cover upper side outer plate, and the rear wheel cover support plate and the corresponding rear wheel A cavity closed from top to bottom is enclosed between the upper side inner panel of the cover and the upper outer side of the rear wheel cover.
所述后轮罩支撑板下端均设有后轮罩,所述后轮罩包括后轮罩外板,所述后轮罩支撑板从对应的所述C柱上端向下延伸至对应的所述后轮罩外侧,所述后轮罩外板下方均设有用于后减震器安装的固定支架,所述车身框架本体还包括后大梁,所述固定支架底部与所述后大梁固定。a rear wheel cover is disposed at a lower end of the rear wheel cover support plate, the rear wheel cover includes a rear wheel cover outer plate, and the rear wheel cover support plate extends downward from a corresponding upper end of the C-pillar to the corresponding The outer side of the rear wheel cover is provided with a fixing bracket for the rear shock absorber installation, and the body frame body further includes a rear beam, and the bottom of the fixing bracket is fixed to the rear beam.
所述后轮罩支撑板内侧均设有后轮罩上加强板,所述后轮罩上加强板上端与对应的所述后轮罩支撑板内侧位置重叠,所述固定支架设置在对应的后轮罩上加强板下方。The rear wheel cover support plate is provided with a rear wheel cover upper reinforcing plate, and the rear wheel cover upper reinforcing plate end overlaps with the corresponding inner side of the rear wheel cover support plate, and the fixed bracket is disposed correspondingly Under the reinforcement plate on the wheel cover.
所述后轮罩支撑板前下方均设有门槛外板和补强板,所述门槛外板分别通过对应的所述补强板与对应的所述后轮罩外板连接。A sill outer plate and a reinforcing plate are respectively disposed at a front lower portion of the rear wheel cover support plate, and the sill outer plates are respectively connected to the corresponding rear wheel cover outer plates through the corresponding reinforcing plates.
本发明的一种白车身框架总成,包括车身框架本体、前端框架和两个侧围框架,所述前端框架固定在车身框架本体前侧,两个所述侧围框架分别固定在所述车身框架本体左右两侧面上,所述前端框架左右两端分别与两个所述侧围框架前端固定连接,所述前端框架包括两个上弯梁立柱加强板,两个所述上弯梁立柱加强板分别由上至下延伸固定在对应的车身上弯梁立柱后侧。这样,因为上弯梁立柱后侧设有由上至下延伸的上弯梁立柱加强板,把传统的上弯梁立柱开口结构盖住,形成封闭式结构,解决了传统的上弯梁立柱与前纵梁连接薄弱,当正面发生碰柱时,传统的上弯梁立柱的开口结构受到荷载易被撕开,使连接失效,传统的上弯梁立柱在传输荷载的过程中因连接失效而传输中断,导致其他非结构件变形,车身变形大,不能将荷载有效传输到前纵梁上乃至车身其他结构件,使车身 接收的加速度信号小,容易产生气囊不点火现象,严重时影响乘客的安全。因此,在该上弯梁立柱后侧设有由上至下的上弯梁立柱加强板,盖住传统的上弯梁立柱开口,该上弯梁立柱与上弯梁立柱加强板便形成了封闭式结构,加强上弯梁立柱连接强度,当发生正面碰撞时,上弯梁立柱接收荷载后,因为有足够强度不会发生连接失效,荷载在上弯梁立柱上可以有效的传输到前纵梁,负载再从前纵梁传输到其他结构件上,保证车身接收到足够的加速度信号,气囊可以有效点火,有效保障乘客的安全。而且在前纵梁左右两端前方设有前大灯,因为前大灯设在前纵梁前方,通过上弯梁立柱加强板使前纵梁与上弯梁立柱连接强度加强同时间接增加前大灯安装点的刚度,提高乘客安全性同时提升白车身整体轻量化水平。A body-in-white frame assembly of the present invention includes a body frame body, a front end frame and two side frame frames, the front end frame being fixed to a front side of the body frame body, and the two side frame frames are respectively fixed to the body body The left and right sides of the frame body are fixedly connected to the front ends of the two side frame frames respectively, and the front end frame comprises two upper curved beam column reinforcing plates, and the two upper curved beam columns are reinforced. The plates are respectively extended from top to bottom and fixed on the rear side of the curved beam column on the corresponding body. In this way, because the rear side of the upper curved column is provided with an upper curved beam upright reinforcing plate extending from top to bottom, the traditional upper curved beam column opening structure is covered to form a closed structure, which solves the traditional upper curved beam column and The front longitudinal beam connection is weak. When the front column is hit, the opening structure of the traditional upper curved beam column is easily torn by the load, which makes the connection fail. The traditional upper curved beam column is transmitted due to the connection failure during the transmission load. Interruption, other non-structural parts are deformed, the body deformation is large, and the load cannot be effectively transmitted to the front longitudinal beam or other structural parts of the vehicle body, so that the acceleration signal received by the vehicle body is small, and the airbag does not ignite, which seriously affects the safety of passengers. . Therefore, on the rear side of the upper curved beam column, there is a top-down upper curved beam column reinforcing plate covering the traditional upper curved beam column opening, and the upper curved beam column and the upper curved beam column reinforcing plate form a closed. The structure strengthens the joint strength of the upper curved beam. When a frontal collision occurs, the upper curved column receives the load. Because there is sufficient strength, the connection failure will not occur. The load can be effectively transmitted to the front longitudinal beam on the upper curved column. The load is transmitted from the front longitudinal beam to other structural members to ensure that the vehicle body receives sufficient acceleration signals, and the airbag can be effectively ignited to effectively protect passenger safety. Moreover, front headlights are arranged in front of the left and right ends of the front longitudinal beam, because the front headlights are arranged in front of the front longitudinal beam, and the strength of the connection between the front longitudinal beam and the upper curved beam column is strengthened by the upper curved beam reinforcement plate, and the front is greatly increased. The stiffness of the lamp mounting point improves passenger safety while increasing the overall weight reduction of the body-in-white.
附图说明DRAWINGS
图1是现有技术白车身框架总成的结构示意图。1 is a schematic structural view of a prior art body-in-white frame assembly.
图1a是图1A′处局部放大图。Figure 1a is a partial enlarged view of Figure 1A'.
图1b是图1(隐藏下侧外围)B′处局部放大图。Figure 1b is a partial enlarged view of Figure 1 (hidden lower side periphery) B'.
图1c是图1(隐藏下侧外围)C′处局部放大图。Figure 1c is a partial enlarged view of Figure 1 (hidden lower side periphery) C'.
图1d是图1(隐藏下侧外围)D′处局部放大图。Figure 1d is a partial enlarged view of Figure 1 (hidden lower side periphery) D'.
图1e是图1(隐藏下侧外围)E′处局部放大图。Figure 1e is a partial enlarged view of Figure 1 (hidden lower side periphery) E'.
图2是本发明白车身框架总成的整体示意图。2 is a schematic overall view of the body-in-white frame assembly of the present invention.
图3是本发明白车身框架总成中上弯梁立柱连接结构前侧(隐藏下侧外围)局部放大图。3 is a partial enlarged view of the front side (hidden lower side periphery) of the upper curved beam column connecting structure in the body-in-white frame assembly of the present invention.
图4是图3中F-F平面剖视图。Figure 4 is a cross-sectional view taken along line F-F of Figure 3;
图5是本发明白车身框架总成中上弯梁立柱连接结构后侧(隐藏下侧外围)局部放大图。Figure 5 is a partial enlarged view of the rear side (hidden lower side periphery) of the upper curved beam column connecting structure in the body-in-white frame assembly of the present invention.
图6是本发明白车身框架总成中发罩铰链安装支架与A柱下加强板连接结构(隐藏下侧外围)局部放大图。Fig. 6 is a partially enlarged view showing the connection structure of the hair hood hinge mounting bracket and the A-pillar lower reinforcing plate in the body-in-white frame assembly of the present invention (hiding the lower side periphery).
图7是本发明白车身框架总成中发罩铰链安装支架与A柱下侧围外板连接结构局部放大图。Fig. 7 is a partially enlarged view showing the connection structure of the hood hinge mounting bracket and the lower side outer panel of the A-pillar in the body-in-white frame assembly of the present invention.
图8是本发明白车身框架总成中前轮罩外板加强板与侧围总成连接结构(隐藏下侧外围)局部放大图。Figure 8 is a partial enlarged view of the front wheel cover outer panel reinforcing plate and the side wall assembly connecting structure (hiding lower side periphery) in the body-in-white frame assembly of the present invention.
图9是本发明白车身框架总成中侧围上边梁连接结构(隐藏下侧外围)局部放大图。Figure 9 is a partial enlarged view of the side wall upper side beam connecting structure (hiding lower side periphery) in the body-in-white frame assembly of the present invention.
图10是图9中G-G平面剖视图。Figure 10 is a cross-sectional view taken along line G-G of Figure 9.
图11是图9中H-H平面剖视图。Figure 11 is a cross-sectional view taken along line H-H of Figure 9.
图12是本发明白车身框架总成中后轮罩上加强板与后轮罩支撑板冲重叠部(隐藏下侧外围)局部放大图。Figure 12 is a partial enlarged view of the overlap portion (hidden lower side periphery) of the rear wheel cover upper reinforcing plate and the rear wheel cover support plate in the body-in-white frame assembly of the present invention.
图13是本发明白车身框架总成中后轮罩支撑板与门槛外板连接结构(隐藏下侧外围)局部放大图。Figure 13 is a partially enlarged view showing the connection structure (hidden lower side periphery) of the rear wheel cover support plate and the sill outer plate in the body-in-white frame assembly of the present invention.
图14是图12中I-I平面剖视图。Figure 14 is a cross-sectional view taken along line I-I of Figure 12;
图15是本发明白车身框架总成传力路径(隐藏下侧外围)示意图。Figure 15 is a schematic view showing the force transmission path (hidden lower side periphery) of the body-in-white frame assembly of the present invention.
图号说明Figure number description
1…上弯梁立柱 2…上弯梁立柱加强板 3…前纵梁 4…前纵梁封板 5…第一两层板式焊点 6…第一三层板式焊点 7…第二两层板式焊点 8…前轮罩外板加强板 9…发罩铰链安装支架 10…第二三层板式焊点 11…A柱下加强板 12…A柱下侧围外板 13…螺栓 14…A柱上加强板 15…第一延伸板 16…第二延伸板 17…侧围上边梁外板 18…侧围上边梁内板 19…后轮罩支撑板 20…后轮罩上侧围内板 21…后轮罩上侧围外板 22…固定支架 23…后轮罩上加强板 24…重叠量 25…门槛外板 26…补强板 27…后轮罩外板 28…正面柱碰 29…顶部压力 30…侧面柱碰 31…路面激1...Upper curved beam column 2...Upper curved beam column reinforcement plate 3...Front longitudinal beam 4...Front longitudinal beam sealing plate 5...first two-layer plate welding joint 6...first three-layer plate welding joint 7...second two layers Plate type solder joints 8... Front wheel cover outer plate reinforcement plate 9... Hair cover hinge mounting bracket 10...Second three-layer plate solder joint 11...A column lower reinforcement plate 12...A column lower side outer panel 13...Bolt 14...A Column-on reinforcing plate 15...first extension plate 16...second extension plate 17...side wall-mounted upper side beam outer panel 18...side wall-mounted upper side beam inner panel 19...rear wheel cover support panel 20...rear wheel cover upper side inner panel 21 ...rear wheel cover upper side outer panel 22...fixing bracket 23...rear wheel cover upper reinforcing plate 24...overlap 25...threshold outer panel 26...reinforcing plate 27...rear wheel cover outer panel 28...front pillar bump 29...top Pressure 30... side column touch 31...road surface
具体实施方式detailed description
下面结合附图的图2至图15对本发明的一种白车身框架总成进一步详细说明。A body-in-white frame assembly of the present invention will now be described in further detail with reference to Figures 2 through 15 of the accompanying drawings.
本发明的一种白车身框架总成,请参考图2至图5所示,包括车身框架本体、前端框架和两个侧围框架,所述前端框架固定在车身框架本体前侧,两个所述侧围框架分别固定在所述车身框架本体左右两侧面上,所述前端框架左右两端分别与两个所述侧围框架前端固定连接,所述前端框架包括两个上弯梁立柱加强板2,两个所述上弯梁立柱加强板2分别由上至下延伸固定在对应的车身上弯梁立柱1后侧。具体而言,因为上弯梁立柱1后侧设有由上至下延伸的上弯梁立柱加强板2,把传统的上弯梁立柱开口结构盖住,形成封闭式结构,解决了传统的上弯梁立柱与前纵梁连接薄弱,当正面发生碰柱时,传统的上弯梁立柱的开口结构受到荷载易被撕开,使连接失效,传统的上弯梁立柱在传输荷载的过程中因连接失效而传输中断,导致其他非结构件变形,车身变形大,不能将荷载有效传输到前纵梁上乃至车身其他结构件,使车身接收的加速度信号小,容易产生气囊不点火现象,严重时影响乘客的安全。因此,在该上弯梁立柱1后侧设有由上至下的上弯梁立柱加强板2,盖住传统的上弯梁立柱开口,该上弯梁立柱1与上弯梁立柱加强板2便形成了封闭式结构,加强上弯梁立柱1连接强度,当发生正面碰撞时,上弯梁立柱1接收荷载后,因为有足够强度不会发生连接失效,荷载在上弯梁立柱1上可以有效的传输到前纵梁3,负载再从前纵梁3传输到其他结构件上,保证车身接收到足够的加速度信号,气囊可以有效点火,有效保障乘客的安全。 而且在前纵梁3左右两端前方设有前大灯,因为前大灯设在前纵梁3前方,通过上弯梁立柱加强板2使前纵梁3与上弯梁立柱1连接强度加强同时间接增加前大灯安装点的刚度,提高乘客安全性同时提升白车身整体轻量化水平。相对于现有技术的优点是:解决上弯梁立柱1与前纵梁3连接薄弱的问题,实现正面柱碰纵梁参与负载传输,提升正面柱碰性能,提高乘客安全性。还可以两个车身上弯梁立柱1前侧下端分别与对应的前纵梁3前侧左端通过两层板式焊接固定,两个车身上弯梁立柱1前侧下端分别与前纵梁3前侧右端可以是通过三个第一两层板式焊点5固定,车身上弯梁立柱1下端右侧与前纵梁3上侧左端通过两层板式焊接固定,车身上弯梁立柱1下端右侧与前纵梁3上侧左端可以通过两个第一两层板式焊点5固定,加强焊接牢固性。上弯梁立柱加强板2下端后侧与前纵梁3后侧可以通过三层板式焊接固定,上弯梁立柱加强板2下端后侧与前纵梁3后侧上的前纵梁封板4可以通过两个第一三层板式焊点6固定,加强焊接牢固性。A body-in-white frame assembly of the present invention, as shown in FIG. 2 to FIG. 5, includes a body frame body, a front end frame and two side wall frames, the front end frame being fixed on the front side of the body frame body, two The side frames are respectively fixed on the left and right sides of the body frame body, and the left and right ends of the front frame are respectively fixedly connected to the front ends of the two side frame frames, and the front frame includes two upper curved beam column reinforcing plates. 2. The two upper curved beam upright reinforcing plates 2 are respectively extended from the top to the bottom and fixed on the rear side of the corresponding body upper curved beam column 1. Specifically, since the rear side of the upper curved beam column 1 is provided with an upper curved beam column reinforcing plate 2 extending from the top to the bottom, the conventional upper curved beam column opening structure is covered to form a closed structure, which solves the conventional problem. The curved beam column and the front longitudinal beam are weakly connected. When the front column is hit, the opening structure of the traditional upper curved beam column is easily torn by the load, which makes the connection invalid. The traditional upper curved beam column is in the process of transmitting load. If the connection fails and the transmission is interrupted, the other non-structural parts are deformed, the deformation of the vehicle body is large, and the load cannot be effectively transmitted to the front longitudinal beam or other structural parts of the vehicle body, so that the acceleration signal received by the vehicle body is small, and the airbag does not ignite. Affect the safety of passengers. Therefore, on the rear side of the upper curved beam column 1, there is a top-down upper curved beam column reinforcing plate 2 covering the traditional upper curved beam column opening, the upper curved beam column 1 and the upper curved beam column reinforcing plate 2 A closed structure is formed to strengthen the joint strength of the upper curved beam column 1. When a frontal collision occurs, the upper curved beam column 1 receives the load, and because there is sufficient strength, the connection failure does not occur, and the load can be on the upper curved beam column 1 Effectively transmitted to the front longitudinal beam 3, the load is transmitted from the front longitudinal beam 3 to other structural members to ensure that the vehicle body receives sufficient acceleration signals, and the airbag can be effectively ignited to effectively protect passenger safety. Moreover, a front headlight is arranged in front of the left and right ends of the front longitudinal beam 3, because the front headlight is arranged in front of the front longitudinal beam 3, and the strength of the front longitudinal beam 3 and the upper curved beam column 1 is strengthened by the upper curved beam column reinforcing plate 2. At the same time, it indirectly increases the rigidity of the headlight installation point, improves passenger safety and improves the overall lightweight level of the body-in-white. The advantage of the prior art is that the problem that the upper curved column 1 and the front longitudinal beam 3 are weakly connected is solved, the front column colliding beam is involved in the load transmission, the front column collision performance is improved, and the passenger safety is improved. It is also possible to fix the front side lower end of the two curved upper beam columns 1 and the front left side of the corresponding front longitudinal beam 3 respectively by two-layer plate welding, and the front side lower ends of the two body upper curved beam columns 1 and the front side of the front longitudinal beam 3 respectively. The right end may be fixed by three first two-layer plate-shaped solder joints 5, and the right side of the lower end of the curved beam column 1 and the upper left end of the front longitudinal beam 3 are fixed by two-layer plate welding, and the lower end of the lower end of the curved beam column 1 on the vehicle body is The upper left end of the front side member 3 can be fixed by two first two-layer plate joints 5 to enhance the welding firmness. The rear side of the upper end of the upper curved beam reinforcing plate 2 and the rear side of the front longitudinal beam 3 can be fixed by three-layer plate welding, and the rear side of the lower curved end of the upper curved column reinforcing plate 2 and the front longitudinal beam sealing plate on the rear side of the front longitudinal beam 3 It can be fixed by two first three-layer plate solder joints 6 to enhance the welding firmness.
本发明的一种白车身框架总成,请参考图2至图5所示,在前面描述的技术方案的基础上还可以是:两个所述上弯梁立柱加强板2左右两侧边缘分别与对应的车身上弯梁立柱1左右两侧边缘由上至下延伸固定,两个所述上弯梁立柱加强板2内侧分别与对应的所述车身上弯梁立柱1内侧之间围设有由上至下封闭的腔体,两个所述上弯梁立柱加强板2和对应的所述车身上弯梁立柱1下端分别与对应的车身前纵梁3前后两端固定。这样,因为两个所述上弯梁立柱加强板2内侧分别与对应的车身上弯梁立柱1内侧之间由上至下封闭的腔体,当发生正面碰柱时,充分利用腔体空间,通过腔体可以将前纵梁3的负载有效分散,而且腔体的结构内为空气,没有任何实体结构,负载在腔体内传输时没有任何实体阻碍,加速负载的传输,有效避免正面柱碰时纵梁受力集中,导致上弯梁立柱1与前纵梁3连接失效,车身接收到的加速度信号小,发生气囊不点火情况,影响乘客安全,进一步提成正面柱碰性能,有效力的分散同时提升白车身整体轻量化水平。The body-in-white frame assembly of the present invention, as shown in FIG. 2 to FIG. 5, may further be based on the technical solutions described above: the left and right edges of the two upper curved beam pillar reinforcing plates 2 respectively And the left and right side edges of the corresponding curved upper beam 1 are extended and fixed from top to bottom, and the inner sides of the two upper curved beam reinforcing plates 2 are respectively disposed between the inner side of the corresponding upper curved column 1 and the inner side of the upper curved column 1 The upper and lower closed cavities, the two upper curved beam upright reinforcing plates 2 and the corresponding lower end of the upper body curved column 1 are respectively fixed to the front and rear ends of the corresponding body front side members 3 respectively. In this way, since the inner sides of the two upper curved beam pillar reinforcing plates 2 and the corresponding inner curved beam column 1 are respectively closed from the top to the bottom, when the front facing column occurs, the cavity space is fully utilized. The load of the front longitudinal beam 3 can be effectively dispersed by the cavity, and the structure of the cavity is air, without any physical structure, the load is transmitted in the cavity without any physical obstruction, accelerating the transmission of the load, effectively avoiding the front column collision The longitudinal beam is concentrated, resulting in failure of the connection between the upper curved column 1 and the front longitudinal beam 3. The acceleration signal received by the vehicle body is small, the airbag does not ignite, affecting passenger safety, further enhancing the performance of the front column collision, effectively dispersing and simultaneously increasing whiteness. The overall body weight level.
本发明的一种白车身框架总成,请参考图2至图8所示,在前面描述的技术方案的基础上还可以是:所述前纵梁3左右两端后方均设有前轮罩外板加强板8,两个所述侧围框架均包括A柱下加强板11,所述前轮罩外板加强板8后上端均设有发罩铰链安装支架9,所述发罩铰链安装支架9内侧后端与对应的所述A柱下加强板11上端通过两层板式焊接固定连接,所述A柱下加强板11外侧均设有A柱下侧围外板12,所述发罩铰链安装支架9外侧后端与对应的A柱下侧围外板12上端固定,所述前轮罩外板加强板8后端分别与对应的所述A柱下侧围外板12中上端固定连接。这样,前轮罩外板加强板8右上端均设有发罩铰链安装支架9,首先通过发罩铰链安装支架9内侧后端分别与对应的A柱下加强板11上端通过两层板式焊接固定连接,然后再通过发罩铰链安装支架9外侧与A柱下侧 围外板12内侧上端固定连接,避免传统的前轮罩外板加强板直接通过二保焊与A柱下侧围外板固定连接,传统的侧围外板厚度薄,厚度只有0.7,侧围外板包括A柱下侧围外板,且A柱下侧围外板厚度也只有0.7mm,易焊穿,影响连接强度,同时采用二保焊焊接易导致点焊密封胶发生化学反应产生有毒气体,影响操作人员身体健康。因此,在不更改BOP的前提下,首先采用发罩铰链安装支架9内侧后端分别与对应的A柱下加强板11上端通过两层板式焊接固定连接,焊接强度得到保证的同时还有效避免采用二保焊与点焊密封胶发生反应后产生有毒气体影响操作人员身体健康,然后再将发罩铰链安装支架9外侧后端与对应的A柱下侧围外板12上侧固定,最后前轮罩外板加强板8后端分别与对应的所述A柱下侧围外板12中上端固定连接。还可以发罩铰链安装支架9内侧后端分别与对应的A柱下加强板11上端通过两个第二两层板式焊点7固定连接,进一步提高连接强度。在前面技术方案的基础上进一步优选的技术方案为:所述发罩铰链安装支架9外侧后端与对应的所述A柱下侧围外板12上端分别通过三层板式焊接固定,所述发罩铰链安装支架9后端上侧分别与对应的所述A柱下侧围外板12上侧前端通过三层板式焊接固定,所述前轮罩外板加强板8后端分别与对应的所述A柱下侧围外板12中上端通过螺栓13固定连接。这样,首先通过上述发罩铰链安装支架9内侧后端分别与对应的A柱下加强板11上端通过两层板式焊接固定连接,然后发罩铰链安装支架9外侧后端再与对应的所述A柱下侧围外板12上端分别通过三层板式焊接固定,最后前轮罩外板加强板8后端分别与对应的所述A柱下侧围外板12中上端通过螺栓13固定连接。避免传统的整块前轮罩外板加强板与A柱下侧围外板通过二保焊连接,传统的侧围外板厚度薄,厚度只有0.7mm,侧围外板包括A柱下侧围外板,A柱下侧围外板厚度同样薄,也只有0.7mm厚,二保焊连接易被焊穿,因此,采用板上焊接加强连接强度,同时还避免了点焊密封胶发生化学反应产生有毒气体,影响操作人员身体健康,提高焊接过程中的安全性。还可以发罩铰链安装支架9外侧后端与对应的A柱下侧围外板12上端分别通过两个第二三层板式焊点10固定连接,所述发罩铰链安装支架9外侧上端分别与对应的A柱下侧围外板12上端前侧通过一个第二三层板式焊点10固定连接,还可以螺栓13为4个,前轮罩外板加强板8后下端通过2个螺栓13固定在A柱下侧围外板12上端,前轮罩外板加强板8前上端通过2个螺栓13固定在A柱下侧围外板12前上端。A body-in-white frame assembly of the present invention, as shown in FIG. 2 to FIG. 8 , on the basis of the technical solution described above, the front wheel cover 3 is provided with a front wheel cover at the left and right ends. The outer panel reinforcing plate 8 and the two side wrapping frames each comprise an A-pillar lower reinforcing plate 11 , and the rear wheel outer panel reinforcing plate 8 is provided with a hair hood hinge mounting bracket 9 at the upper rear end, and the hair hood hinge is installed The inner rear end of the bracket 9 and the corresponding upper end of the A-pillar lower reinforcing plate 11 are fixedly connected by two-layer plate welding, and the outer side of the A-pillar lower reinforcing plate 11 is provided with an A-pillar lower side outer panel 12, the hair cover The outer rear end of the hinge mounting bracket 9 is fixed to the upper end of the corresponding A-pillar lower side outer panel 12, and the rear end of the front wheel cover outer panel reinforcing plate 8 is respectively fixed with the upper end of the corresponding A-pillar lower side outer panel 12. connection. Thus, the right upper end of the front wheel cover outer panel reinforcing plate 8 is provided with a hood hinge mounting bracket 9, firstly through the inner side rear end of the hood hinge mounting bracket 9 and the upper end of the corresponding A-pillar lower reinforcing plate 11 respectively through two layers of plate welding Connected, and then fixedly connected to the inner side of the inner side of the lower side of the A-pillar by the outer cover of the A-pillar hinge mounting bracket 9 to avoid the conventional front wheel cover outer plate reinforcing plate directly passing through the second welding and the A-pillar lower side outer plate fixing Connection, the traditional side panel outer panel is thin, the thickness is only 0.7, the side panel outer panel includes the A-pillar lower side outer panel, and the thickness of the lower side of the A-pillar is only 0.7mm, which is easy to weld and affect the connection strength. At the same time, the use of two-welded welding is easy to cause the chemical reaction of the spot welding sealant to produce toxic gas, which affects the health of the operator. Therefore, without changing the BOP, firstly, the inner rear end of the hood hinge mounting bracket 9 is respectively fixedly connected with the upper end of the corresponding A-pillar lower reinforcing plate 11 through two-layer plate welding, and the welding strength is ensured, and the use is effectively avoided. After the second welding and the spot welding sealant react, the toxic gas is generated to affect the health of the operator, and then the outer rear end of the hood hinge mounting bracket 9 is fixed to the upper side of the corresponding A-pillar lower side outer panel 12, and finally the front wheel The rear ends of the cover outer panel reinforcing plates 8 are respectively fixedly connected to the upper ends of the corresponding A-pillar lower side outer panels 12. The inner rear end of the hood hinge mounting bracket 9 can also be fixedly connected to the upper end of the corresponding A-pillar lower reinforcing plate 11 through two second two-layer plate-shaped solder joints 7, thereby further improving the connection strength. According to the foregoing technical solution, a further preferred technical solution is that the outer rear end of the hood hinge mounting bracket 9 and the corresponding upper end of the lower side outer panel 12 of the A-pillar are respectively fixed by three-layer plate welding. The upper end of the rear end of the cover hinge mounting bracket 9 and the corresponding front end of the lower side outer panel 12 of the A-pillar are respectively fixed by three-layer plate welding, and the rear end of the front wheel cover outer plate reinforcing plate 8 and the corresponding end respectively The upper end of the lower side outer panel 12 of the A-pillar is fixedly connected by bolts 13. In this way, firstly, the inner rear end of the hood hinge mounting bracket 9 is respectively fixedly connected with the upper end of the corresponding A-pillar lower reinforcing plate 11 through two layers of plate welding, and then the outer rear end of the hood hinge mounting bracket 9 is corresponding to the corresponding A. The upper ends of the lower side outer panel 12 are respectively fixed by three-layer plate welding, and finally the rear ends of the front wheel outer panel reinforcing plates 8 are respectively fixedly connected to the upper ends of the corresponding lower side outer panels 12 of the A-pillars by bolts 13. It avoids the traditional one-piece front wheel cover outer plate reinforcement plate and the A-pillar lower side outer plate through two welding welding. The traditional side wall outer plate is thin and the thickness is only 0.7mm, and the side outer plate includes the A-pillar lower side wall. The thickness of the outer plate and the outer side of the A-pillar is also thin, and it is only 0.7mm thick. The second welding connection is easy to be welded. Therefore, the welding strength is strengthened by the plate welding, and the chemical reaction of the spot welding sealant is also avoided. Produces toxic gases, affects the health of operators and improves safety during welding. The outer rear end of the hood hinge mounting bracket 9 and the corresponding upper end of the lower side outer panel 12 of the A-pillar are respectively fixedly connected by two second three-layer slab joints 10, and the outer upper ends of the hood hinge mounting brackets 9 are respectively The front side of the upper end of the lower side outer panel 12 of the corresponding A-pillar is fixedly connected by a second three-layer plate-shaped solder joint 10, and four bolts 13 may be used. The rear lower end of the front wheel cover outer plate reinforcing plate 8 is fixed by two bolts 13. At the upper end of the lower side outer panel 12 of the A-pillar, the front upper end of the front wheel shroud outer panel reinforcing plate 8 is fixed to the front upper end of the lower side outer panel 12 of the A-pillar by two bolts 13.
本发明的一种白车身框架总成,请参考图2至图14所示,在前面描述的技术方案的基础上还可以是:所述A柱下加强板11上端均设有A柱上加强板14,所述车身框架本体还包括上边梁,所述A柱上加强板14后方均设有A柱上加强延伸板,所述A柱上加强延伸板分别通过对应的侧围上边梁内板18和侧围上边 梁外板17固定在所述上边梁上,所述A柱上加强延伸板分别固定在对应的所述侧围上边梁内板18和所述侧围上边梁外板17的中间,所述A柱上加强延伸板分别与对应的所述侧围上边梁内板18内侧和所述侧围上边梁外板17内侧之间围设有由前至后封闭的腔体。这样,传统的侧围上边梁上的A柱上加强板只贯穿到B柱上,侧围上边梁腔体连续性差,。因此,在A柱上加强板14后方均设有A柱上加强延伸板,通过A柱上加强延伸板前后两侧分别在对应的侧围上边梁内板18内侧和侧围上边梁外板17内侧之间围设有由前至后封闭的腔体,充分利用腔体空间,且腔体的结构内为空气,没有任何实体结构,负载在腔体内传输时没有任何实体阻碍,加速负载的传输,有效避免正面柱碰时纵梁受力集中,通过腔体可以将侧围上边梁上的负载有效分散到车身其他结构件上,该腔体可以将侧梁的负载有效分散,有效避免侧面柱碰时侧梁产生受力集中,提升白车车身碰撞安全性能,侧面柱碰情况避免出现较大的车身变形和失效问题,提升白车身轻量化水平的同时能传递和分散侧面碰撞能量,提升侧面柱碰性能和顶压性能。在前面技术方案的基础上进一步优选的技术方案为:所述A柱上加强延伸板分别包括第一延伸板15和第二延伸板16,所述车身框架本体包括B柱、C柱和D柱,所述第一延伸板15分别从对应的所述B柱顶端后侧延伸至对应的所述C柱顶端前侧,所述第二延伸板16分别从对应的所述C柱顶端后侧延伸至对应的所述D柱下端,所述第一延伸板15和所述第二延伸板16延伸固定在对应的所述侧围上边梁内板18与所述15侧围上边梁外板17中间,所述第一延伸板15和所述第二延伸板16分别与对应的所述侧围上边梁内板18内侧和所述15侧围上边梁外板17内侧之间围设有由前至后封闭的腔体。这样,当侧面发生碰柱时,有效保证侧围上边梁腔体从A柱上端到D柱上端的连续性,利用腔体的连贯性,将侧围上边梁的载荷有效传输到B柱、C柱及D柱上,避免侧面柱碰时侧围上边梁产生受力集中,解决传统的A柱上加强板结构只贯穿到B柱,侧围上边梁腔体连续性差,导致侧面碰撞时没有像正面碰撞有缓冲吸能区域,仅靠A柱、B柱、侧围上边梁、门槛以及车门防撞杆受力,侧围上边梁腔体连续性差将导致侧面柱碰易出现大的车身变形和失效等问题。因此,完整的、连续的该侧围腔体结构,提升白车身轻量化水平的同时能有效传递和分散侧面碰撞能量,提升侧面柱碰性能和抗压性能,提升白车身轻量化水平的同时能有效传递和分散侧面碰撞能量,提升侧面柱碰性能和抗压性能。在前面技术方案的基础上进一步优选的技术方案为:所述第一延伸板15后端下侧均设有后轮罩支撑板19,所述后轮罩支撑板19通过后轮罩上侧围内板20和后轮罩上侧围外板21固定在对应的所述C柱上,所述后轮罩支撑板19分别延伸固定在对应的后轮罩上侧围内板20和后轮罩上侧围外板21中间,所述后轮罩支撑板19与对应的所述后轮罩上侧围内板20和所述后轮罩上侧围外板 21之间围设有由上至下封闭的腔体。这样,通过后轮罩支撑板19与对应的所述后轮罩上侧围内板20和所述后轮罩上侧围外板21之间围设有由上至下封闭的腔体,后轮罩支撑板19贯穿整个C柱,保障整个C柱的连续性,将侧面的负载通过该腔体有效传输,因腔体结构内没有实体阻力,当发生负载时,负载可以通过腔体结构快速传递,提升白车身轻量化水平的同时有效传递和分散侧面后轮罩碰撞负载,提升侧面后轮罩处柱碰性能。在前面技术方案的基础上进一步优选的技术方案为:所述后轮罩支撑板19下端均设有后轮罩,所述后轮罩包括后轮罩外板27,所述后轮罩支撑板19从对应的所述C柱上端向下延伸至对应的所述后轮罩外侧,所述后轮罩外板27下方均设有用于后减震器安装的固定支架22,所述车身框架本体还包括后大梁,所述固定支架22底部与所述后大梁固定。这样,后轮罩支撑板19分别从对应的C柱上端向下一直延伸至对应的后轮罩外板27外侧,避免传统的后轮罩支撑板与C柱上加强板错位,产生的腔体整体性差,接头刚度低。因此,一体式的后轮罩支撑板19加强C柱连续性,保证后轮罩支撑板19从C柱上端一直连续延伸到后轮罩外板27外侧,将侧面的负载通过该腔体有效传输后轮罩上,有效保证传力路径更加顺畅。后减震器安装的固定支架22底部可以与后大梁通过二保焊固定连接,加强固定支架22和后大梁连接稳定性。还可以后轮罩下内侧分别设有两个用于后减震器安装的固定支架22,两个用于后减震器安装的固定支架22前后对称安装。在前面技术方案的基础上进一步优选的技术方案为:所述后轮罩支撑板19内侧均设有后轮罩上加强板23,所述后轮罩上加强板23上端与对应的所述后轮罩支撑板19内侧位置重叠,所述固定支架22设置在对应的后轮罩上加强板23下方。这样,提升后轮罩上加强板23高度,增加后轮罩上加强板23与后轮罩支撑板19的重叠量24,重叠高度可以是160mm,传统的后轮罩上加强板只延伸到后轮罩翻边处便停止,后轮罩上加强板与后轮罩支撑板腔体重叠量少,传力路劲不通常,经历恶劣工况时门槛负载无法有效传输,容易导致门槛下端变形或出现应力集中。因此,增加后轮罩上加强板23与后轮罩支撑板19的重叠量24,传力路径通常,有效减少应力集中,提升后减震器安装支架点动刚度。后轮罩支撑板自C柱上端一直延伸至后轮罩外板27上与对应的后轮罩支撑板19与内侧的后轮罩上加强板23及下方的后减震安装的固定支架22位置对应,固定支架22底部和后大梁固定,从而保证车身后侧围腔体结构连续性和整体性。在前面技术方案的基础上进一步优选的技术方案为:所述后轮罩支撑板19前下方均设有门槛外板25和补强板26,所述门槛外板25分别通过对应的所述补强板26与对应的所述后轮罩外板27连接。这样,门槛外板25分别通过补强板26与对应的后轮罩外板27连接,解决了传统的门槛外板与后轮罩外板断开,腔体一致性差,传力路劲不顺畅。因此,加强C柱下接头对前 后车体的接头刚度同时提升白车身一阶扭矩模态和一阶弯曲模态,从而提高侧面柱碰性能。The body-in-white frame assembly of the present invention, as shown in FIG. 2 to FIG. 14 , can also be based on the technical solution described above: the upper end of the A-pillar under-reinforcing plate 11 is provided with an A-pillar reinforcement. The plate body 14 further includes an upper side beam, and the A-pillar upper reinforcing plate 14 is provided with an A-pillar upper reinforcing extending plate, and the A-pillar reinforcing extending plate passes through the corresponding side surrounding upper side beam inner plate respectively. 18 and a side wall upper side outer panel 17 fixed to the upper side rail, wherein the A-pillar upper reinforcing extension plate is respectively fixed to the corresponding side wall upper side beam inner panel 18 and the side wall upper side beam outer panel 17 In the middle, the A-pillar reinforcing extension plate is respectively provided with a cavity closed from the front to the rear between the inner side of the corresponding side wall inner side panel 18 and the inner side of the side wall upper side outer panel 17. Thus, the reinforcing plate on the A-pillar on the side wall of the conventional side wall only penetrates the B-pillar, and the continuity of the side-side upper beam cavity is poor. Therefore, a reinforcing column on the A-pillar is arranged on the rear side of the reinforcing plate 14 on the A-pillar, and the front and rear sides of the reinforcing plate are reinforced on the front side of the corresponding side wall by the A-pillar and the side-side outer plate 17 of the side beam. A cavity closed from front to back is arranged between the inner side, and the cavity space is fully utilized, and the structure of the cavity is air, without any physical structure, and the load is transmitted in the cavity without any physical obstruction, accelerating the transmission of the load. The utility model can effectively avoid the stress concentration of the longitudinal beam when the front column is touched, and the load on the side wall side rail can be effectively dispersed to other structural parts of the vehicle body through the cavity, the cavity can effectively disperse the load of the side beam, and effectively avoid the side column collision. The side beam generates force concentration, improves the collision safety performance of the white car body, avoids large body deformation and failure problems in the side column collision situation, improves the light body level of the white body and can transmit and disperse the side collision energy, and enhance the side column collision. Performance and top pressure performance. A further preferred technical solution based on the foregoing technical solutions is that the A-pillar reinforcing extension plates respectively comprise a first extension plate 15 and a second extension plate 16, the body frame body comprising a B-pillar, a C-pillar and a D-pillar The first extension plate 15 extends from the rear side of the corresponding B-pillar top end to the corresponding front side of the C-pillar top end, and the second extension plate 16 respectively extends from the rear side of the corresponding C-pillar top end. Up to the lower end of the corresponding D-pillar, the first extension plate 15 and the second extension plate 16 are extended and fixed between the corresponding side wall upper side beam inner panel 18 and the 15 side side upper side beam outer panel 17 The first extension plate 15 and the second extension plate 16 are respectively disposed between the inner side of the corresponding side wall inner side panel 18 and the inner side of the 15 side side upper side outer panel 17 The closed cavity. In this way, when the column is hit on the side, the continuity of the side wall of the side wall from the upper end of the A-pillar to the upper end of the D-pillar is effectively ensured, and the load of the side-side side beam is effectively transmitted to the B-pillar and C by the continuity of the cavity. On the column and the D-pillar, the force is concentrated on the side sill of the side wall when the side column is touched. The traditional A-pillar reinforced plate structure only penetrates the B-pillar, and the side-side upper beam cavity has poor continuity, resulting in no side impact. The frontal collision has a buffered energy absorption area, and only the A-pillar, B-pillar, side-side upper side beam, sill and door anti-collision bar are stressed. The poor continuity of the side-side upper side beam cavity will cause the side column to be easily deformed and large body deformation. Invalid issues. Therefore, the complete and continuous side wall cavity structure can effectively transmit and disperse the side collision energy while improving the light weight level of the body-in-white, improve the side column collision performance and the compression resistance performance, and improve the light body level of the body-in-white. Effectively transmits and disperses side impact energy, improving side column impact performance and compression resistance. A further preferred technical solution based on the foregoing technical solution is that the rear side of the rear end of the first extension plate 15 is provided with a rear wheel cover support plate 19, and the rear wheel cover support plate 19 passes through the rear wheel cover. The inner panel 20 and the rear wheel cover upper side outer panel 21 are fixed on the corresponding C-pillars, and the rear wheel cover support panels 19 are respectively extended and fixed to the corresponding rear wheel cover upper side inner panel 20 and the rear wheel cover. Between the upper side outer panel 21, the rear wheel cover support plate 19 and the corresponding rear wheel cover upper side inner panel 20 and the rear wheel cover upper side outer panel 21 are arranged from the top to the top Lower closed cavity. Thus, a cavity closed from top to bottom is surrounded by the rear wheel cover support plate 19 and the corresponding rear wheel cover upper side inner panel 20 and the rear wheel cover upper side outer panel 21, and The wheel cover support plate 19 runs through the entire C-pillar, ensuring the continuity of the entire C-pillar, and the side load is effectively transmitted through the cavity, because there is no physical resistance in the cavity structure, and when the load occurs, the load can pass through the cavity structure quickly. Passing, improving the light weight of the body-in-white while effectively transmitting and dispersing the side rear wheel cover collision load, and improving the column collision performance at the side rear wheel cover. A further preferred technical solution based on the foregoing technical solution is that the rear wheel cover support plate 19 is provided with a rear wheel cover at a lower end thereof, and the rear wheel cover includes a rear wheel cover outer plate 27, and the rear wheel cover support plate. 19 extending downward from the corresponding upper end of the C-pillar to the outer side of the corresponding rear wheel cover, and the rear wheel cover outer plate 27 is provided with a fixing bracket 22 for rear shock absorber mounting, the body frame body A rear girders are also included, and the bottom of the fixing bracket 22 is fixed to the rear girders. Thus, the rear wheel cover support plate 19 extends downward from the upper end of the corresponding C-pillar to the outer side of the corresponding rear wheel cover outer plate 27, respectively, so as to avoid the displacement of the conventional rear wheel cover support plate and the reinforcing plate on the C-pillar, and the cavity generated. Poor overall performance and low joint rigidity. Therefore, the integrated rear wheel cover support plate 19 reinforces the continuity of the C-pillar, ensuring that the rear wheel cover support plate 19 continuously extends from the upper end of the C-pillar to the outer side of the rear wheel cover outer plate 27, and the side load is effectively transmitted through the cavity. On the rear wheel cover, the force transmission path is ensured to be smoother. The bottom of the fixed bracket 22 installed by the rear shock absorber can be fixedly connected with the rear beam by the second welding, and the stability of the fixing bracket 22 and the rear beam connection is strengthened. Two fixing brackets 22 for rear shock absorber mounting are respectively disposed on the inner side of the rear wheel cover, and two fixing brackets 22 for rear shock absorber mounting are symmetrically mounted. A further preferred technical solution on the basis of the foregoing technical solutions is that the rear wheel cover support plate 19 is provided with a rear wheel cover upper reinforcing plate 23, and the rear wheel cover upper reinforcing plate 23 upper end and the corresponding rear portion The inside of the wheel house support plate 19 is overlapped, and the fixing bracket 22 is disposed below the corresponding rear wheel cover upper reinforcing plate 23. In this way, the height of the reinforcing plate 23 on the rear wheel cover is increased, and the overlapping amount 24 of the reinforcing plate 23 and the rear wheel cover supporting plate 19 on the rear wheel cover is increased, and the overlapping height can be 160 mm. The reinforcing plate on the conventional rear wheel cover only extends to the rear. The wheel cover is stopped at the flange, and the rear plate cover has less overlap with the rear wheel cover support plate cavity, and the force transmission road force is not normal. When the severe working condition is encountered, the threshold load cannot be effectively transmitted, and the lower end of the threshold is easily deformed or Stress concentration occurs. Therefore, the amount of overlap 24 between the reinforcing plate 23 and the rear wheel cover supporting plate 19 on the rear wheel cover is increased, and the force transmission path is generally effective to reduce stress concentration and improve the jog rigidity of the rear shock absorber mounting bracket. The rear wheel cover support plate extends from the upper end of the C-pillar to the rear wheel cover outer plate 27 and the corresponding rear wheel cover support plate 19 and the inner rear wheel cover upper reinforcing plate 23 and the lower rear shock-absorbing mounting fixing bracket 22 Correspondingly, the bottom of the fixing bracket 22 and the rear girders are fixed, thereby ensuring the continuity and integrity of the structure of the rear side wall of the vehicle body. A further preferred technical solution based on the foregoing technical solution is that the front wheel cover support plate 19 is provided with a sill outer plate 25 and a reinforcing plate 26, and the sill outer plate 25 respectively passes the corresponding The strong plate 26 is coupled to the corresponding rear wheel house outer panel 27. In this way, the sill outer panel 25 is respectively connected to the corresponding rear wheel cover outer panel 27 through the reinforcing plate 26, which solves the problem that the conventional sill outer panel and the rear wheel hood outer panel are disconnected, the cavity consistency is poor, and the transmission force is not smooth. . Therefore, the joint rigidity of the C-pillar lower joint to the front and rear body is strengthened, and the first-order torque mode and the first-order bending mode of the body-in-white are improved, thereby improving the side column collision performance.
如图15所示,经过对车身梁结构的补足和接头结构的合理分块与加强,使得白车身架构形成完整的笼式结构,焊接过程更加安全健康,上下车体连接更紧密,传力路径更多,能更加有效地传递和分散碰撞或正常行驶过程中的冲击力和路面激励31,提升白车身正面柱碰28方向和侧面柱碰30方向的碰柱性能;提升白车身顶部压力29的抗压性能,顶部抗压强度分析刚性墙位移同为50mm时,抵御的顶压载荷从约33KN提升至约43KN;白车身扭转刚度增加1780Nm/deg,弯曲刚度增加1051N/mm;白车身一阶弯曲模态增加1.43Hz,一阶扭模态增加1.93Hz,提升NVH性能;白车身轻量化系数由5.11提升至4.75以及提升后减震器安装支架点动刚度。As shown in Fig. 15, after the complement of the body beam structure and the reasonable division and reinforcement of the joint structure, the body-in-white structure forms a complete cage structure, the welding process is safer and healthier, and the upper and lower body bodies are connected more closely, and the force transmission path is More, it can more effectively transmit and disperse the impact force and road surface excitation during collision or normal driving, and improve the performance of the column in the direction of the white body front column and the side column in the direction of 30; Compressive performance, top compressive strength analysis When the rigid wall displacement is 50mm, the resistive top load is increased from about 33KN to about 43KN; the torsional stiffness of the white body is increased by 1780Nm/deg, the bending stiffness is increased by 1051N/mm; The bending mode is increased by 1.43 Hz, the first-order torsional mode is increased by 1.93 Hz, and the NVH performance is improved; the body-in-white light weight coefficient is increased from 5.11 to 4.75 and the jog of the rear shock absorber mounting bracket is increased.
上述仅对本发明中的几种具体实施例加以说明,但并不能作为本发明的保护范围,凡是依据本发明中的设计精神所作出的等效变化或修饰或等比例放大或缩小等,均应认为落入本发明的保护范围。The above description is only for the specific embodiments of the present invention, but it should not be taken as the scope of protection of the present invention. Any equivalent changes or modifications or equal enlargements or reductions according to the design spirit of the present invention should be It is considered to fall within the scope of protection of the present invention.

Claims (10)

  1. 一种白车身框架总成,其特征在于:包括车身框架本体、前端框架和两个侧围框架,所述前端框架固定在车身框架本体前侧,两个所述侧围框架分别固定在所述车身框架本体左右两侧面上,所述前端框架左右两端分别与两个所述侧围框架前端固定连接,所述前端框架包括两个上弯梁立柱加强板(2),两个所述上弯梁立柱加强板(2)分别由上至下延伸固定在对应的车身上弯梁立柱(1)后侧。A body-in-white frame assembly, comprising: a body frame body, a front end frame and two side wall frames, wherein the front end frame is fixed to a front side of the body frame body, and the two side frame frames are respectively fixed at the The left and right sides of the front frame are fixedly connected to the front ends of the two side frames, and the front frame includes two upper curved beam reinforcing plates (2), two of the upper The curved beam column reinforcing plates (2) are respectively extended from the top to the bottom and fixed on the rear side of the corresponding body upper curved beam column (1).
  2. 根据权利要求1所述的一种白车身框架总成,其特征在于:两个所述上弯梁立柱加强板(2)左右两侧边缘分别与对应的车身上弯梁立柱(1)左右两侧边缘由上至下延伸固定,两个所述上弯梁立柱加强板(2)内侧分别与对应的所述车身上弯梁立柱(1)内侧之间围设有由上至下封闭的腔体,两个所述上弯梁立柱加强板(2)和对应的所述车身上弯梁立柱(1)下端分别与对应的车身前纵梁(3)前后两端固定。The body-in-white frame assembly according to claim 1, wherein the left and right side edges of the two upper curved beam upright reinforcing plates (2) and the corresponding upper curved beam columns (1) are respectively left and right. The side edges are extended from top to bottom, and the inner side of the two upper curved beam column reinforcing plates (2) and the corresponding inner side of the upper curved beam column (1) are respectively surrounded by a cavity closed from top to bottom. The lower ends of the two upper curved beam upright reinforcing plates (2) and the corresponding upper curved beam uprights (1) are respectively fixed to the front and rear ends of the corresponding front side longitudinal beams (3).
  3. 根据权利要求1所述的一种白车身框架总成,其特征在于:所述前纵梁(3)左右两端后方均设有前轮罩外板加强板(8),两个所述侧围框架均包括A柱下加强板(11),所述前轮罩外板加强板(8)后上端均设有发罩铰链安装支架(9),所述发罩铰链安装支架(9)内侧后端与对应的所述A柱下加强板(11)上端通过两层板式焊接固定连接,所述A柱下加强板(11)外侧均设有A柱下侧围外板(12),所述发罩铰链安装支架(9)外侧后端与对应的A柱下侧围外板(12)上端固定,所述前轮罩外板加强板(8)后端分别与对应的所述A柱下侧围外板(12)中上端固定连接。A body-in-white frame assembly according to claim 1, wherein a front wheel cover outer panel reinforcing plate (8) is disposed at the rear left and right ends of the front side member (3), and the two sides are The surrounding frames each include an A-pillar lower reinforcing plate (11), and the rear upper end of the front wheel cover outer plate reinforcing plate (8) is provided with a hair hood hinge mounting bracket (9), and the hair hood hinge mounting bracket (9) inner side The rear end and the corresponding upper end of the A-pillar lower reinforcing plate (11) are fixedly connected by two-layer plate welding, and the A-pillar lower reinforcing plate (11) is provided with an A-pillar lower side outer plate (12). The outer rear end of the cover hinge mounting bracket (9) is fixed to the upper end of the corresponding A-pillar lower side outer panel (12), and the rear end of the front wheel outer panel reinforcing plate (8) and the corresponding A-pillar respectively The upper end of the lower side outer panel (12) is fixedly connected.
  4. 根据权利要求3所述的一种白车身框架总成,其特征在于:所述发罩铰链安装支架(9)外侧后端与对应的所述A柱下侧围外板(12)上端分别通过三层板式焊接固定,所述发罩铰链安装支架(9)后端上侧分别与对应的所述A柱下侧围外板(12)上侧前端通过三层板式焊接固定,所述前轮罩外板加强板(8)后端分别与对应的所述A柱下侧围外板(12)中上端通过螺栓(13)固定连接。A body-in-white frame assembly according to claim 3, wherein the outer rear end of the hood hinge mounting bracket (9) and the upper end of the corresponding lower side outer panel (12) of the A-pillar are respectively passed The three-layer plate type welding is fixed, and the upper end of the rear end of the hood hinge mounting bracket (9) is respectively fixed with the corresponding upper end of the lower side outer panel (12) of the A-pillar by three-layer plate welding, the front wheel The rear ends of the outer cover reinforcing plates (8) are respectively fixedly connected to the upper ends of the corresponding lower outer side plates (12) of the A-pillars by bolts (13).
  5. 根据权利要求3所述的一种白车身框架总成,其特征在于:所述A柱下加强板(11)上端均设有A柱上加强板(14),所述车身框架本体还包括上边梁,所述A柱上加强板(14)后方均设有A柱上加强延伸板,所述A柱上加强延伸板分别通过对应的侧围上边梁内板(18)和侧围上边梁外板(17)固定在所述上边梁上,所述A柱上加强延伸板分别固定在对应的所述侧围上边梁内板(18)和所述侧围上边梁外板(17)的中间,所述A柱上加强延伸板分别与对应的所述侧围 上边梁内板(18)内侧和所述侧围上边梁外板(17)内侧之间围设有由前至后封闭的腔体。A body-in-white frame assembly according to claim 3, characterized in that: the upper end of the A-pillar lower reinforcing plate (11) is provided with an A-pillar upper reinforcing plate (14), and the body frame body further comprises an upper side a beam, the A-pillar upper reinforcing plate (14) is provided with an A-pillar reinforcing extending plate, and the A-pillar reinforcing extending plate passes through the corresponding side wall upper side beam inner plate (18) and the side surrounding upper side beam respectively. A plate (17) is fixed on the upper side rail, and the A-pillar reinforcing extending plate is respectively fixed in the middle of the corresponding side wall upper side beam inner plate (18) and the side wall upper side beam outer plate (17) The A-pillar reinforcing extension plate is respectively provided with a front-to-back closed cavity between the inner side of the corresponding side wall inner side panel (18) and the inner side of the side wall side outer beam (17). body.
  6. 根据权利要求5所述的一种白车身框架总成,其特征在于:所述A柱上加强延伸板分别包括第一延伸板(15)和第二延伸板(16),所述车身框架本体包括B柱、C柱和D柱,所述第一延伸板(15)分别从对应的所述B柱顶端后侧延伸至对应的所述C柱顶端前侧,所述第二延伸板(16)分别从对应的所述C柱顶端后侧延伸至对应的所述D柱下端,所述第一延伸板(15)和所述第二延伸板(16)延伸固定在对应的所述侧围上边梁内板(18)与所述侧围上边梁外板(17)中间,所述第一延伸板(15)和所述第二延伸板(16)分别与对应的所述侧围上边梁内板(18)内侧和所述侧围上边梁外板(17)内侧之间围设有由前至后封闭的腔体。A body-in-white frame assembly according to claim 5, wherein said A-pillar reinforcing extension plates respectively comprise a first extension plate (15) and a second extension plate (16), said body frame body A B-pillar, a C-pillar, and a D-pillar are included, and the first extension plate (15) respectively extends from a rear side of the corresponding B-pillar top end to a corresponding front side of the C-pillar top end, and the second extension plate (16) Extending from the rear side of the corresponding top end of the C-pillar to the lower end of the corresponding D-pillar, respectively, the first extension plate (15) and the second extension plate (16) are extended and fixed to the corresponding side wall An upper side inner panel (18) and the side wall upper side outer panel (17), the first extension board (15) and the second extension board (16) respectively corresponding to the side wall side rails A cavity closed from front to back is disposed between the inner side of the inner panel (18) and the inner side of the side wall upper side panel (17).
  7. 根据权利要求6所述的一种白车身框架总成,其特征在于:所述第一延伸板(15)后端下侧均设有后轮罩支撑板(19),所述后轮罩支撑板(19)通过后轮罩上侧围内板(20)和后轮罩上侧围外板(21)固定在对应的所述C柱上,所述后轮罩支撑板(19)分别延伸固定在对应的后轮罩上侧围内板(20)和后轮罩上侧围外板(21)中间,所述后轮罩支撑板(19)与对应的所述后轮罩上侧围内板(20)和所述后轮罩上侧围外板(21)之间围设有由上至下封闭的腔体。A body-in-white frame assembly according to claim 6, wherein a rear wheel cover support plate (19) is disposed on a lower side of the rear end of the first extension plate (15), and the rear wheel cover supports The plate (19) is fixed on the corresponding C-pillar through the rear wheel cover upper side inner plate (20) and the rear wheel cover upper side outer plate (21), and the rear wheel cover support plate (19) respectively extends Fixed in the middle of the corresponding rear wheel cover upper side inner panel (20) and the rear wheel cover upper side outer panel (21), the rear wheel cover support board (19) and the corresponding rear wheel cover upper side wall A cavity closed from top to bottom is enclosed between the inner panel (20) and the upper side outer panel (21) of the rear wheel housing.
  8. 根据权利要求7所述的一种白车身框架总成,其特征在于:所述后轮罩支撑板(19)下端均设有后轮罩,所述后轮罩包括后轮罩外板(27),所述后轮罩支撑板(19)从对应的所述C柱上端向下延伸至对应的所述后轮罩外侧,所述后轮罩外板(27)下方均设有用于后减震器安装的固定支架(22),所述车身框架本体还包括后大梁,所述固定支架(22)底部与所述后大梁固定。A body-in-white frame assembly according to claim 7, wherein said rear wheel cover support plate (19) is provided with a rear wheel cover at a lower end thereof, and said rear wheel cover comprises a rear wheel cover outer plate (27). The rear wheel cover support plate (19) extends downward from the corresponding upper end of the C-pillar to the outer side of the corresponding rear wheel cover, and the rear wheel cover outer plate (27) is provided below for the rear reduction The shock mount-mounted fixing bracket (22) further includes a rear beam, and the bottom of the fixing bracket (22) is fixed to the rear beam.
  9. 根据权利要求8所述的一种白车身框架总成,其特征在于:所述后轮罩支撑板(19)内侧均设有后轮罩上加强板(23),所述后轮罩上加强板(23)上端与对应的所述后轮罩支撑板(19)内侧位置重叠,所述固定支架(22)设置在对应的后轮罩上加强板(23)下方。A body-in-white frame assembly according to claim 8, wherein the rear wheel cover support plate (19) is provided with a rear wheel cover upper reinforcing plate (23) on the inner side thereof, and the rear wheel cover is reinforced The upper end of the plate (23) overlaps with the inner side of the corresponding rear wheel cover support plate (19), and the fixed bracket (22) is disposed below the corresponding rear wheel cover upper reinforcing plate (23).
  10. 根据权利要求9所述的一种白车身框架总成,其特征在于:所述后轮罩支撑板(19)前下方均设有门槛外板(25)和补强板(26),所述门槛外板(25)分别通过对应的所述补强板(26)与对应的所述后轮罩外板(27)连接。A body-in-white frame assembly according to claim 9, wherein the front wheel cover support plate (19) is provided with a sill outer plate (25) and a reinforcing plate (26) in front and lower. The sill outer plates (25) are respectively connected to the corresponding rear wheel cover outer plates (27) through the corresponding reinforcing plates (26).
PCT/CN2019/080287 2018-04-03 2019-03-29 Body-in-white frame assembly WO2019192390A1 (en)

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