WO2018177399A1 - Carrosserie de véhicule - Google Patents

Carrosserie de véhicule Download PDF

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Publication number
WO2018177399A1
WO2018177399A1 PCT/CN2018/081269 CN2018081269W WO2018177399A1 WO 2018177399 A1 WO2018177399 A1 WO 2018177399A1 CN 2018081269 W CN2018081269 W CN 2018081269W WO 2018177399 A1 WO2018177399 A1 WO 2018177399A1
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WO
WIPO (PCT)
Prior art keywords
bracket
vehicle body
force
dash panel
rail
Prior art date
Application number
PCT/CN2018/081269
Other languages
English (en)
Chinese (zh)
Inventor
王长一
陈妍妍
刘增寿
黄创举
张明召
Original Assignee
长城汽车股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 长城汽车股份有限公司 filed Critical 长城汽车股份有限公司
Publication of WO2018177399A1 publication Critical patent/WO2018177399A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
    • B62D21/152—Front or rear frames
    • B62D21/155—Sub-frames or underguards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
    • B62D21/157—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body for side impacts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/16—Mud-guards or wings; Wheel cover panels
    • B62D25/18—Parts or details thereof, e.g. mudguard flaps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
    • B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars

Definitions

  • the present invention relates to the field of vehicle technology, and in particular to a vehicle body.
  • the present invention aims to propose a vehicle body to solve the problem that the force transmission channel is single and the transmission efficiency is low.
  • a vehicle body comprising: two A-pillars; a front impact beam; two front longitudinal beams, the front ends of the two front longitudinal beams are respectively connected at two ends of the front impact beam, each of the front The longitudinal beam is connected to the A-pillar on the same side through a plurality of force transmission passages; the front wall, the rear ends of the two front longitudinal beams are connected to the front wall, and the lower part of the front panel is provided with a channel in the dash panel, the dash panel is connected to the two A-pillars; a front wall upper beam, the front wall upper beam is disposed at an upper portion of the dash panel; a front wall lower vertical beam, the front An upper end of the lower vertical beam is coupled to the front upper rail and a lower end extends to the passage in the dash panel.
  • the vehicle body further includes: two upper side beams, a rear end of each of the upper side beams is connected to the A-pillars on the same side, and each of the upper side beams and the front side of the side rails A plurality of connecting portions are disposed therebetween to connect the front longitudinal beam to the A-pillar through the plurality of force transmission channels.
  • the plurality of connecting portions include: a first bracket extending in a left-right direction and an inner end connected to an outer side of the front longitudinal beam and adjacent to a front end of the front longitudinal beam, A front lower end of the upper side rail is coupled to an outer end of the first bracket.
  • the first bracket includes: a first bracket plate and a second bracket plate, the first bracket plate has a U shape, and the second bracket plate is fixed at an opening of the first bracket plate and is sealed Said opening.
  • the plurality of connecting portions include: a second bracket connected between the upper side rail and the front side rail of the same side, and the second bracket is connected to the top side rail Located at the upper rear of the junction of the first bracket and the roof side rail.
  • the second bracket includes: a first connecting member and a second connecting member, the first connecting member extending in a left-right direction and being connected between the upper side rail and the second connecting member, The second connector extends in the up and down direction and the lower end is coupled to the front side member.
  • first connecting member has an arc shape
  • second connecting member is a plate-like structure having a groove and an open front end
  • the vehicle body further includes: a front end closing structure, the front end closing structure being coupled to the front side member by the second connecting member.
  • first bracket, the second bracket, a portion of the top side rail between the first bracket and the second bracket, and the front side rail are located at the first bracket and the The portion between the second brackets forms a space quadrilateral.
  • the plurality of connecting portions further include: a third bracket connected between the upper side rail and the front side rail of the same side, the third bracket and the upper side rail The connection is located rearward of the junction of the second bracket and the roof rail.
  • the upper side beam includes: an arc segment and a straight segment, the arc segment is connected in front of the straight segment, and the first bracket and the second bracket are respectively connected to the arc segment
  • the third bracket is connected to the straight section, and the straight section is connected to the rear A-pillar.
  • the third bracket is an integrally formed plate-like structure.
  • the collision force of the front impact beam is transmitted to the two rear front longitudinal beams, and each of the front longitudinal beams transmits a collision force to the dash panel, and
  • the plurality of force transmission channels on the same side are transmitted to the A-pillar on the same side, and the collision force transmitted to the A-pillar is transmitted to the channel in the dash panel through the front wall upper beam and the front wall lower vertical beam .
  • the A-pillar on the collision side transmits the collision force to the other side through the front wall upper beam, and the vertical beam is passed to the front wall by the front wall upper beam and The passage in the dash panel is transmitted.
  • the first bracket transmits the front longitudinal beam collision force to deform the front longitudinal beam toward the vehicle outer side.
  • the vehicle body of the present invention has the following advantages:
  • the force can be absorbed and decomposed efficiently and quickly, and the collision force transmitted to the rear can be effectively dispersed, so that the intrusion amount of the dash panel can be greatly reduced, and the body can be prevented from being affected. Serious damage can better ensure the full living space of the passenger compartment.
  • 1 to 3 are schematic views showing a partial structure of a vehicle body at different angles according to an embodiment of the present invention
  • FIG. 4 is a rear elevational view of a heavy vehicle front panel according to an embodiment of the present invention.
  • Figure 5 is a schematic view showing the connection of the upper cross member, the lower front vertical beam and the front wall of the dash panel;
  • Figure 6 is a top plan view of the front side rail and the top side rail;
  • Figure 7 is a cross-sectional view taken along line A-A of Figure 6;
  • Figure 8 is a perspective view of the front side frame and the top side beam
  • Figure 9 is a side view of the front side rail and the top side rail
  • FIG. 10 is a partial top plan view of a vehicle body according to an embodiment of the present invention.
  • Figure 11 is a cross-sectional view taken along line B-B of Figure 10;
  • Figure 12 is a schematic view of the cooperation of the front longitudinal beam, the sill beam and the front floor longitudinal beam;
  • Figure 13 is a plan view of a vehicle body according to an embodiment of the present invention.
  • Figure 14 is an enlarged view of a region C in Figure 13;
  • FIG. 15 is a partial top plan view of a vehicle body according to an embodiment of the present invention.
  • Figure 16 is a cross-sectional view taken along line D-D of Figure 15;
  • Figure 17 is a perspective view of a front compartment of a vehicle body according to an embodiment of the present invention.
  • Figure 18 is a partial structural view showing the cooperation of the dash panel and the side panel;
  • Figure 19 is a cross-sectional view taken along line F-F of Figure 18;
  • 20 is a schematic view showing the cooperation of the upper side beam, the A-pillar, and the rear wall;
  • Figure 21 is a cross-sectional view taken along line G-G of Figure 20;
  • Figure 22 is a plan view of a floor in a vehicle body according to an embodiment of the present invention.
  • Figure 23 is a perspective view of a vehicle body according to an embodiment of the present invention.
  • Figure 24 is a schematic diagram of the collision force transmission of the channels in the front wall upper cross member, the front wall lower vertical beam and the dash panel when the vehicle is side-touched.
  • Front anti-collision beam 200 energy absorbing box 201;
  • a dash panel 400 a channel 401 in the dash panel; a front wall upper cross member 402; a front wall lower vertical beam 403; a front wall middle beam 404; a front wall lower plate 405; a front wall upper plate 406;
  • Upper side rail 600 first bracket 601; first bracket plate 6011; second bracket plate 6012;
  • a second bracket 602 a first connecting member 6021; a second connecting member 6022; a third bracket 603; an arc segment 604; a straight section 605;
  • Front end closure structure 700
  • Rear floor rail 900 front section 901; middle section 902; rear section 903;
  • a channel 1000 in the floor a middle channel transmission path 1001; a middle channel connection plate 1002;
  • Wheel cover reinforcement beam 1300 first portion 1301; second portion 1302;
  • the vehicle body 10000 of the embodiment of the present invention will be described in detail below with reference to FIGS. 1 through 23 in conjunction with the embodiments.
  • the vehicle body 10000 may include: two A-pillars 100, a front impact beam 200, two front longitudinal beams 300, a dash panel 400, a cowl upper cross member 402, a cowl lower vertical beam 403, and two Front floor rail 500, of course, body 10000 may also include other components, such as roof rail 600, sill beam 800 and rear floor rail 900, and the like.
  • the front ends of the two front side members 300 are respectively connected at both ends of the front impact beam 200, specifically, the front ends of the two front side members 300 and the ends of the front impact beam 200 are further
  • the energy absorbing box 201 is provided, and the energy absorbing box 201 can absorb energy when the vehicle is hitting, so that the collision force transmitted backward can be reduced, and the passenger's riding safety can be improved.
  • Each of the front side members 300 is connected to the A-pillar 100 on the same side by a plurality of force transmission passages, wherein the front side rail 300 on the same side, that is, the left side, is connected to the A-pillar 100 on the left side, and the front side is located on the right side.
  • the beam 300 is connected to the A-pillar 100 located on the right side.
  • the force transmission channel is a channel that transmits a collision force, and the force transmission channel can be a physical component. Among them, it can be understood that by providing a plurality of force transmission channels, the force transmission channel is increased, so that the force can be absorbed and decomposed efficiently and quickly, and the collision force transmitted to the rear can be effectively dispersed, so that the front wall can be greatly reduced. 400 intrusion can avoid serious damage to the body 10000, and can better ensure the full living space of the passenger compartment. The following is a detailed description of the specific arrangement of the force transmission channel.
  • the rear ends of the two front side members 300 are coupled to the dash panel 400 so that the collision force can be transmitted to the dash panel 400 through the front impact beam 200 and the front side member 300 when the vehicle is hitting.
  • the dash panel 400 is coupled to the two A-pillars 100.
  • the cowl upper cross member 402 is disposed at an upper portion of the dash panel 400, wherein the dash panel 400 includes a cowl upper panel 406 and a cowl lower panel 405, and the cowl top panel 406 is disposed at the front wall Above the lower plate 405, the cowl upper plate 406 constitutes an upper portion of the dash panel 400, and the cowl lower plate 405 constitutes a lower portion of the dash panel 400.
  • the front wall upper cross member 402 may be located at the upper end of the cowl upper panel 406. It should be noted that the front wall upper beam 402 is disposed on the rear surface of the cowl upper plate 406.
  • the lower portion of the dash panel 400 is provided with a channel 401 in the dash panel, the upper end of the cowl lower vertical beam 403 is connected to the cowl upper cross member 402, and the lower end of the cowl lower 403 is extended.
  • the lower end of the front lower vertical beam 403 and the channel 401 of the dash panel may be welded to each other, so that the connection between the two is reliable and the transmission efficiency is high.
  • the collision force transmitted to the cowl upper cross member 402 can be transmitted to the channel 401 in the dash panel through the cowl lower vertical beam 403, wherein the channel 401 in the dash panel can be connected to the floor tunnel 1000 on the floor.
  • the collision force can be transmitted to the floor, so that the collision force can be better dispersed, the burden on the dash panel 400 can be effectively alleviated, and the passenger can be effectively protected.
  • the collision force of the front impact beam 200 is transmitted to the two front side rails 300 at the rear, and each of the front side members 300 transmits the collision force to the dash panel 400 and the multiple passes on the same side.
  • the force channel is transmitted to the A-pillar 100 on the same side, and is also transmitted to the front floor longitudinal beam 500, and the collision force transmitted to the A-pillar 100 is transmitted to the dash panel through the front wall upper beam 402 and the front wall lower vertical beam 403.
  • Channel 401
  • the collision force is transmitted from both ends of the front wall upper cross member 402 to the midpoint, and then transmitted to the lower vertical beam 403, and the front wall lower vertical beam 403 can also The collision force is transmitted to the channel 401 in the dash panel.
  • the A-pillar 100 on the collision side transmits the collision force to the other side through the front wall upper beam 402, and passes through the front wall upper beam 402 to surround the lower vertical beam 403 and the channel in the dash panel. 401 passed.
  • the side collision position is the left side of the vehicle.
  • the collision force is transmitted from the left end of the front wall upper beam 402 to the right, and the collision force transmitted to the midpoint of the front wall upper beam 402 is partially transmitted to the right.
  • a portion is passed downward through the front lower vertical beam 403 and the channel 401 in the dash panel.
  • each front floor rail 500 is coupled to the rear end of the front side rail 300 of the same side such that the front side rail 300 can transmit the impact force to the front floor rail 500 so as to be effective in the front and rear direction of the vehicle. Dispersing the collision force, and each front floor longitudinal beam 500 is configured as a straight line, the linear front floor longitudinal beam 500 has high force transmission efficiency, and the linear front floor longitudinal beam 500 is simple in production process, thereby reducing the front floor longitudinal beam The production cost of 500.
  • the sill beam 800 may be two, and the front end of each sill beam 800 is connected to the rear end of the front side sill 300 of the same side.
  • the sill beam 800 extends in the front-rear direction, so that the front longitudinal beam 300 can also transmit the collision force to the sill beam 800, so that the collision force can be effectively transmitted and decomposed, and the collision performance of the vehicle can be improved.
  • each rear floor rail 900 is connected to the rear end of the same side front side rail 500 and the rear end of the rocker 800 to the front floor rail 500, the sill beam 800 and the rear floor.
  • the stringer 900 forms a force-transmitting closed loop structure.
  • the floor stringer 900 can transmit the collision force to the sub-frame, which can effectively improve the force transmission effect of the lower part of the body 10000, and can effectively improve the mode of the lower part of the body 10000, thereby improving the passenger safety.
  • the setting of the transmission force closed-loop structure can improve the force transmission effect on the one hand, and improve the structural reliability of the vehicle body 10000 on the other hand.
  • the vehicle body 10000 may further include: two upper side rails 600, the rear end of each of the upper side beams 600 is connected to the A-pillar 100 on the same side, and each of the upper side beams 600 and the front side of the same side A plurality of connecting portions are disposed between the longitudinal beams 300 to connect the front longitudinal beams 300 to the A-pillars 100 through a plurality of force transmission passages. Therefore, it can be understood that the front side frame 300 can be connected to the A-pillar 100 through the upper side rail 600.
  • the connection between the front side rail 300 and the upper side rail 600 is various, and each connection mode is different.
  • the connecting portion is embodied so that a plurality of force transmission passages are provided between the front side frame 300 and the A-pillar 100.
  • one connecting portion and the upper side rail 600 can constitute a force transmission passage.
  • the front side member 300 can also be connected to the A-pillar 100 through the dash panel 400, which also constitutes a force transmission channel.
  • the roof side rail 600 can be fully utilized, and the roof side rail 600 can share the force of the front side frame 300, and by providing a plurality of connecting portions, the front compartment of the vehicle body 10000 can efficiently absorb and decompose the force, which can be greatly increased. Reducing the amount of intrusion of the dash panel 400 can better ensure a sufficient living space of the passenger compartment.
  • the body 10000 includes a front side rail assembly that includes a front side rail 300, a first bracket 301, and a top side rail 600.
  • the plurality of connecting portions may include: a first bracket 601, the first bracket 601 extends in the left-right direction, and the inner ends of the first bracket 601 are connected.
  • the front lower end of the upper side rail 600 is connected to the outer end of the first bracket 601.
  • the first bracket 601 is coupled between the front longitudinal member 300 and the front lower end of the upper side rail 600 such that the front longitudinal member 300 can transmit force to the A-pillar 100 through the first bracket 601 and the upper side rail 600 when the vehicle is hitting.
  • the roof rail 600 can absorb and decompose the force.
  • the first bracket 601 is in contact with the obstacle, and the front longitudinal beam 300 applies a force to the outside of the vehicle width direction, so that the front longitudinal beam 300 can be guided to the outer side in the vehicle width direction to increase the engine compartment compression space.
  • the burden of the dash panel 400 can be alleviated, and the first bracket 601 thus disposed can facilitate the transfer and break down the force.
  • the upper side rail 600 can absorb energy efficiently, and the upper side rail 600 can transmit the collision force to the A-pillar 100 and the first bracket 601 to the front longitudinal beam 300, so that the force can be effectively dispersed, and the collision performance of the vehicle can be improved.
  • the first bracket 601 can be welded and fixed to the front side frame 300 and the top side rail 600 respectively, so that the fixing manner is simple and reliable, and the welding fixing efficiency is high.
  • the upper side rail 600 extends obliquely upward in the front-rear direction, and the side rail 600 thus disposed can be matched with the shape of the vehicle body 10000 to better transmit force.
  • the cross section of the first bracket 601 may be a closed structure.
  • the first bracket 601 thus disposed is structurally more reliable. In this way, when the vehicle is biased, the first bracket 601 can effectively transmit the force, so that the biasing effect can be improved.
  • the first bracket 601 includes: a first bracket plate 6011 and a second bracket plate 6012.
  • the first bracket plate 6011 has a U shape
  • the second bracket plate 6012 is fixed to the opening of the first bracket plate 6011.
  • the second bracket plate 6012 seals the opening.
  • the first bracket 601 has a simple structure and a low manufacturing cost, and in addition, the first bracket 601 can be formed into a closed structure.
  • the first bracket plate 6011 and the second bracket plate 6012 are respectively provided with side flanges fixed to the front side frame 300.
  • the side flanges can be welded and fixed to the outer side wall of the front side frame 300, so that the first bracket 601 and the front side frame 300 are fixedly secured, and this can facilitate the transmission of the collision force when the contact is biased.
  • the first bracket plate 6011 and the second bracket plate 6012 are respectively provided with side flanges fixed to the roof side rail 600. That is to say, the first bracket 601 is also fixed to the roof side rail 600 by the side flanges, so that the first bracket 601 and the roof side rail 600 are fixedly secured, and this can facilitate the transmission of the collision force when the collision is made.
  • the plurality of connecting portions may further include: a second bracket 602 connected between the upper side rail 600 and the front side rail 300 on the same side, and the second bracket 602 and The junction of the roof side rail 600 is located at the upper rear of the junction of the first bracket 601 and the roof side rail 600. That is to say, on the basis of the first bracket 601, a second bracket 602 is also connected between the front longitudinal beam 300 and the upper side rail 600, and the second bracket 602 can also transmit the collision force, so that when the vehicle is hitting, the front longitudinal The beam 300 can transmit the impact force to the A-pillar 100 through the second bracket 602 and the top side rail 600 such that the A-pillar 100 can be transferred to the rear side panel 1400 and the floor.
  • the second bracket 602 may include a first connecting member 6021 and a second connecting member 6022.
  • the first connecting member 6021 extends in the left-right direction, and the first connecting member 6021 is connected to the upper side rail 600.
  • the second connecting member 6022 extends in the up and down direction, and the lower end of the second connecting member 6022 is coupled to the front side member 300.
  • the second bracket 602 thus disposed has a simple structure and can reasonably connect the front longitudinal beam 300 and the upper side rail 600, thereby improving the transmission efficiency.
  • the first connecting member 6021 may have an arc shape
  • the second connecting member 6022 is a plate-like structure having a groove and an open front end.
  • the first connecting member 6021 can effectively connect the second connecting member 6022 and the roof side rail 600, and can properly accommodate the front cabin space of the vehicle body 10000.
  • the second connecting member 6022 thus disposed can facilitate the installation of other components of the vehicle body 10000. Thereby, the structural integrity of the vehicle body 10000 can be improved, and the structural reliability of the vehicle body 10000 can be improved.
  • the body 10000 may further include a front end closure structure 700 that is coupled to the front side frame 300 by a second connector 6022. Since the front end of the second connecting member 6022 is open, the installation of the front end closing structure 700 can be facilitated, and the mounting area of the front end closing structure 700 and the second connecting member 6022 can be ensured, so that the mounting reliability of the front end closing structure 700 can be further improved.
  • the front end closure structure 700 can be generally rectangular, and the front end closure structure 700 can make the front compartment of the vehicle body 10000 evenly stressed, and can improve the transmission efficiency.
  • first bracket 601, the second bracket 602, the upper side rail 600 is located between the first bracket 601 and the second bracket 602, and the portion of the front side frame 300 between the first bracket 601 and the second bracket 602 forms a space. quadrilateral.
  • the space quadrilateral is more stable and reliable, so that the structure of the front compartment of the body 10000 is more reliable, the stability is better, and the force transmission effect is better.
  • the plurality of connecting portions may further include: a third bracket 603, a third bracket 603 connected between the upper side rail 600 and the front side frame 300, and a third The junction of the bracket 603 and the roof side rail 600 is located rearward of the junction of the second bracket 602 and the roof side rail 600. That is to say, on the basis of the first bracket 601 and the second bracket 602, a third bracket 603 is further connected between the front longitudinal beam 300 and the upper side rail 600, and the third bracket 603 and the upper side rail 600 constitute a force transmission passage.
  • the force transmission passage between the front longitudinal beam 300 and the A-pillar 100 can be better enriched, and the front cabin of the vehicle body 10000 can be evenly stressed, the force transmission effect is good, and the transmission force efficiency is high.
  • the third bracket 603 may be an integrally formed plate-like structure. Thereby, the third bracket 603 is simple and reliable in structure and low in manufacturing cost.
  • the roof side rail 600 may include: an arc segment 604 and a straight segment 605, the arc segment 604 is connected in front of the straight segment 605, and the first bracket 601 and the second bracket 602 are respectively connected to the arc.
  • the third bracket 603 is coupled to the straight section 605, and the straight section 605 is coupled to the rear A-pillar 100.
  • the upper side rail 600 may be composed of two front and rear structures.
  • the front structure is formed with an arc segment 604 and a portion of the straight segment 605, and the rear structure is integrally configured as another portion of the straight segment 605.
  • the front structure and the rear structure are connected reliably and smoothly, so that the structural reliability of the roof side rail 600 can be improved.
  • the upper side rail 600 is increased in width from the front to the rear, such that the upper side rail 600 is lighter in weight, thereby meeting the lightweight design requirements of the vehicle, and the rear end of the upper side rail 600 is connected to the A-pillar 100. more reliable.
  • the projection of the roof side rail 600 in the horizontal plane is linear, and the roof side rail 600 is inclined inward in the direction from the rear to the front.
  • the roof side rail 600 is inclined outward in the front-rear direction, so that the roof side rail 600 is structurally reliable, and when the collision is deformed, the roof side rail 600 can be deformed like the outer side of the vehicle body 10000, and the roof side rail 600 can also pass through a plurality of connections.
  • the front guiding longitudinal beam 300 is outwardly deformed, so that the amount of intrusion into the passenger compartment can be reduced, and the passenger can be provided with a safe living space.
  • the body 10000 also includes a wheel cover 1200, and the arrangement of the wheel cover 1200 is described in detail below with reference to the drawings.
  • the wheel cover 1200 is mounted above the rear of the front side member 300, and the dash panel 400 is attached to the rear of the wheel cover 1200, in other words, the wheel cover 1200 extends rearwardly and forwardly.
  • the panels 400 are connected.
  • a wheel cover reinforcing beam 1300 is disposed on the wheel cover 1200.
  • the wheel house reinforcing beam 1300 is composed of a first portion 1301 and a second portion 1302.
  • the first portion 1301 is a front lower end of the wheel cover reinforcing beam 1300, and the front lower end of the wheel cover reinforcing beam 1300 Attached to the rear portion of the front side member 300, for example, the front lower end of the wheel house reinforcing beam 1300 is welded and fixed to the rear portion of the front side frame 300, and the second portion 1302 of the wheel house reinforcing beam 1300 is integrally fixed to the wheel cover 1200. .
  • the wheel house reinforcing beam 1300 can effectively reinforce the wheel house 1200, and the wheel house reinforcing beam 1300 can function as a force transmitting force.
  • the wheel house reinforcing beam 1300 can transmit the collision force on the front side frame 300 to the wheel house 1200.
  • the wheel cover 1200 can further transmit the collision force to the dash panel 400, and the dash panel 400 can be further transmitted to the side panel 1400 and the floor, thereby effectively decomposing the force and improving the collision performance of the vehicle. .
  • the vehicle body 10000 may further include: a connecting member 1500 connected between the dash panel 400 and the side panel 1400, and a lower portion of the connecting member 1500 in the left and right direction across the dash panel 400 And the wheel cover reinforcing beam 1300 is disposed opposite to the front and rear in the up and down direction.
  • the collision force transmitted to the wheel house reinforcing beam 1300 can be transmitted to the side wall 1400 through the dash panel 400 and the connecting member 1500, so that the force is further effectively decomposed, so that the collision performance of the vehicle can be improved.
  • the connecting member 1500 by providing the connecting member 1500, the rigidity and strength of the vehicle body 10000 can be effectively increased, and the deformation of the passenger compartment can be suppressed during the collision, and the living space of the passenger can be ensured.
  • the wheel cover reinforcing beam 1300 may be disposed outside the wheel cover 1200. Thereby, it is possible to facilitate the correspondence between the wheel cover reinforcing beam 1300 and the connecting member 1500, so that the structural reliability of the vehicle body 10000 can be improved.
  • the second portion 1302 of the wheelhouse reinforcement beam 1300 extends to the junction between the wheel cover 1200 and the dash panel 400.
  • the wheel cover reinforcing beam 1300 thus arranged can effectively strengthen the wheel cover 1200, and this can also effectively transmit the collision force when the vehicle is hitting, and can improve the force transmission effect.
  • the wheel cover reinforcing beam 1300 is curved, and the curved wheel house reinforcing beam 1300 can be matched with the wheel cover 1200 and can extend from the front to the rear.
  • the curved wheel house reinforcement beam 1300 is simple and reliable in construction.
  • a triangular closed-loop connection structure is formed between the dash panel 400, the side panel 1400 and the connecting member 1500. Therefore, the connection between the dash panel 400 and the side panel 1400 is reliable, and the force can be transmitted through the connecting member 1500.
  • the triangular closed-loop connecting structure thus arranged can enrich the force transmission path, and can improve the force transmission effect, thereby improving the vehicle. Collision performance.
  • the upper portion of the connector 1500 may also be fixed to the front upper rail 402. It can be understood that in the up and down direction, the connecting member 1500 is divided into an upper portion and a lower portion, the upper portion is connected to the front wall upper cross member 402, and the lower portion is connected to the dash panel 400, so that the side wall panel 1400 can be further improved.
  • the connection reliability between the dash panels 400 and the enrichment of the force transmission path can improve the collision performance of the vehicle.
  • the connectors 1500 are respectively welded and fixed to the cowl upper cross member 402 and the dash panel 400.
  • the welding fixing can improve the fixing reliability of the connecting member 1500, and on the other hand, the production efficiency of the vehicle body 10000 can be improved.
  • the vehicle body 10000 further includes a cowl middle cross member 404 disposed on the front surface of the dash panel 400.
  • the two ends of the front middle beam 404 are respectively connected with the rear ends of the two front side members 300 to form a force-carrying closed-loop structure with the front impact beam 200 and the two front side members 300.
  • the force-carrying closed-loop structure is closed-loop in structure and can act as a force transmission.
  • the front impact beam 200 can transmit the collision force to the two front side rails 300 at the rear, since the rear ends of the two front side members 300 are connected to the front middle beam 404, such that the collision force It can be transmitted to the front middle beam 404, and the front middle beam 404 thus arranged can effectively enrich the force transmission path, can effectively disperse the force, thereby suppressing the deformation of the passenger compartment and providing a living space for the passenger.
  • the force transmitted between the front middle beam 404 and the front longitudinal beam 300 does not conflict with other force transmission paths.
  • the front longitudinal beam 300 can still transmit the collision force to the front floor longitudinal beam 500 and the sill beam.
  • the arrangement of the front middle beam 404 can enhance the structural strength of the body 10000 and enrich the force transmission path.
  • the front wall upper plate 406 is further provided with a front wall upper plate reinforcing plate, and the front wall upper plate reinforcing plate and the front wall upper plate 406 have an F-shaped cross section.
  • the front wall upper plate 406 is disposed above the front wall middle beam 404, and the two ends of the front wall upper plate 406 can respectively connect the shock absorber seats on both sides, so that the front wall upper plate 406 can effectively strengthen the dash panel 400
  • the structural strength, and the cowl top plate 406 can improve the front compartment integrity of the body 10000, thereby further improving the structural reliability of the body 10000.
  • both ends of the front middle beam 404 are inclined downwardly to be connected to the rear end of the front side frame 300.
  • the front middle beam 404 may include a left segment, a middle segment and a right segment, the middle segment is connected between the left segment and the right segment, the middle segment extends horizontally in the left and right direction, the left segment extends obliquely, and the left segment has a left lower end and a left side.
  • the rear end of the front side rail 300 is connected, the upper right end of the left section is connected to the middle section, the lower right end of the right section is connected to the rear end of the right side longitudinal rail 300, and the upper left end of the right section is connected to the middle section.
  • the cowl center cross member 404 thus disposed can be effectively connected to the front side members 300 on both sides while properly reinforcing the structure of the dash panel 400.
  • the rear end of the front side member 300 extends obliquely inwardly to connect with the end of the front middle beam 404.
  • the front side member 300 thus disposed can be effectively connected to the end portion of the front middle beam 404, and the front side member 300 can be outwardly deformed when the vehicle is hitting, thereby reducing the amount of intrusion of the dash panel 400 and providing the passenger with living space.
  • the rear portion of the front side frame 300 is curved upwardly in a front-to-rear direction, so that the structural strength of the front side frame 300 can be improved, and the rear portion of the front side frame 300 can be guided upward when the vehicle is hitting, thereby The amount of intrusion of the dash panel 400 can be reduced.
  • the rear portion of the front side member 300 extends outward in a front-to-rear direction.
  • the rear portion of the outwardly extending front side rail 300 can guide the rear portion of the front side frame 300 outwardly when the vehicle is hitting, so that the amount of intrusion of the dash panel 400 can be reduced.
  • the upwardly extending portion of the front side member 300 and the outwardly extending portion may be the same portion.
  • the width of the cowl middle cross member 404 decreases from the midpoint to both sides.
  • the strength of the front middle middle beam 404 is appropriately distributed in the left-right direction, so that the structural reliability of the front middle middle beam 404 can be improved.
  • the body 10000 may include a floor, and the floor may include: two seat front beams 1601, two seat rear beams 1602, a seat front connecting plate 1603, a seat rear connecting plate, and two sill beams 800.
  • Two outer connecting plates 1605 and two inner connecting plates 1606, two seat front cross members 1601 are spaced apart in the left-right direction, and two seat front cross members 1601 are connected by a front seat connecting plate 1603, two seats
  • the outer ends of the front chair beams 1601 are connected to the two sill beams 800; the two seat rear beams 1602 are spaced apart in the left-right direction, and the outer ends of each of the seat rear beams 1602 are connected to the sill beam 800 by the outer connecting plates 1605.
  • each seat rear cross member 1602 is connected to the seat rear connecting plate through the inner connecting plate 1606, and the two outer connecting plates 1605 and the two inner connecting plates 1606 are respectively provided with seat mounting points.
  • a coherent structure can be formed between the seat front cross member 1601, the seat rear cross member 1602 and the two sill beams 800, which can ensure the installation function and the installation strength of the front seat, thereby improving the anti-twist ability of the front floor. And stiffness, can improve the side impact performance of the vehicle.
  • the top walls of the two seat front beams 1601 and the two seat rear beams 1602 are respectively provided with reinforcing ribs 1607 extending in the left-right direction.
  • the rib 1607 can effectively strengthen the structural strength of the corresponding seat front cross member 1601 and the seat rear cross member 1602, so that the seat front cross member 1601 and the seat rear cross member 1602 do not bulge upward when the vehicle side is touched, thereby reducing The intrusion of the passenger compartment can improve the passenger's riding safety.
  • the reinforcing rib 1607 may be a concave rib or a rib.
  • the convex or concave rib structure is simple, so that the manufacturing difficulty of the seat front cross member 1601 and the seat rear cross member 1602 can be reduced, and the manufacturing difficulty of the vehicle body 10000 can be reduced.
  • the height of the seat front cross member 1601 is greater than the height of the seat rear cross member 1602. Since the outer connecting plate 1605 and the inner connecting plate 1606 are provided with seat mounting points, the seat rear cross member 1602 need not be arranged to be equal to the seat front cross member 1601, so that the seat rear cross member 1602 has a small height, thereby reducing the seat.
  • the weight of the rear seat beam 1602 can further reduce the weight of the body 10000.
  • 1/2 of the height of the seat front cross member 1601 may be greater than the height of the seat rear cross member 1602.
  • the seat rear cross member 1602 thus provided can facilitate the mounting of the outer connecting plate 1605 and the inner connecting plate 1606 on the one hand, and can further reduce the weight of the body 10000 on the other hand.
  • the outer connecting plate 1605 and the inner connecting plate 1606 are inverted U-shaped, and the lower edges of the outer connecting plate 1605 and the inner connecting plate 1606 are fixed to the side walls of the seat rear cross member 1602.
  • the fixing manner may be welding fixing, so that the outer connecting plate 1605 and the inner connecting plate 1606 are simple in structure, and the outer connecting plate 1605 and the inner connecting plate 1606 are fixedly fixed to the seat rear cross member 1602, respectively.
  • the outer web 1605 can include a lap joint 1608 that overlaps the top wall of the sill beam 800.
  • the lap joint 1608 can increase the contact area between the outer connecting plate 1605 and the sill beam 800, which can further improve the connection reliability between the outer connecting plate 1605 and the sill beam 800.
  • the inner web 1606 can include side flaps that overlap the sidewalls of the rear panel of the seat.
  • the side flaps can also serve to increase the contact area, thereby making the attachment between the inner connecting plate 1606 and the rear seat connecting plate more reliable.
  • the floor rail 1700 of the body 10000 will be described in detail below with reference to FIG.
  • the body 10000 may include an on-floor stringer 1700 disposed above the floor, a cowl lower panel 405 attached to the front side of the floor, and an on-floor stringer 1700 extending obliquely on the cowl lower panel 405 and the floor.
  • the conventional floor upper rail extends only on the floor, and the floor side rail 1700 of the present invention extends forward to the floor, thereby effectively improving the connection reliability between the floor and the cowl lower plate 405, and on the floor.
  • the longitudinal beam 1700 can also act as a force transmission, so that the force can be effectively decomposed and the collision performance of the vehicle can be improved.
  • the floor side rail 1700 is opposed to the rear end of the front side frame 300 in the front-rear direction via the cowl lower plate 405.
  • the floor side rail 1700 extends obliquely from the inside to the outside in the front-rear direction. In this way, the side rail 1700 can effectively suppress the deformation of the floor when the vehicle is hitting and hitting the side, so that the collision performance of the vehicle can be improved. Moreover, the floor rail 1700 thus provided can be easily connected to the front members.
  • the rear side of the front cowl lower plate 405 is provided with a front wall lower plate rib extending in the left and right direction, and the upper side frame 1700 is two, the front wall lower plate ribs and the two floor upper frame beams 1700 respectively. Connected, the rear ends of the two side rails 1700 are respectively connected to the front seat beams 1601 on both sides.
  • the front lower plate stiffener, the two floor upper rails 1700, the two seat front cross members 1601 and the seat front connecting plate 1603 form a force-closed closed-loop structure, so that when the vehicle is hitting, the impact force can be from the front wall
  • the front wall lower plate rib on the plate 400 is transmitted to the seat front beam 1601 through the floor longitudinal beam 1700, so that the force can be effectively decomposed, the force transmission effect can be improved, and the collision performance of the vehicle can be improved.
  • the seat front cross member 1601 is also connected to the floor passage 1000. Specifically, a seat front connecting plate 1603 is disposed below the floor tunnel 1000, and the seat front connecting plate 1603 is coupled between the two seat front beams 1601.
  • the front side of the front lower plate 405 is provided with a front middle beam 404, the front middle beam 404 and the front wall lower rib corresponding to each other, and the front middle beam 404 and the front lower plate rib are in the left and right direction and up and down At least a part of the direction coincides.
  • the structural strength of the dash panel 400 can be effectively enhanced, the intrusion amount of the dash panel 400 can be suppressed, and the living space can be provided for the passenger.
  • the collision force transmitted to the front middle beam 404 can be transmitted to the front lower plate stiffener and the floor upper rail 1700, thereby effectively enriching the force transmission path and improving the collision performance of the vehicle. .
  • the floor rail 1700 is linear.
  • the linear floor upper rail 1700 is simple and reliable in construction and simple to manufacture.
  • the rear floor rail 900 includes a front section 901, a middle section 902 and a rear section 903.
  • the front section 901 is attached to the rear end of the front floor rail 500
  • the middle section 902 is connected to the rear end of the rocker beam 800.
  • the rear section 903 extends rearward from the middle section 902 to the rear subframe.
  • the rear floor rail 900 can effectively join the sill beam 800 and the front floor rail 500
  • the rear floor rail 900 can also be coupled to the subframe so that the rear floor rail 900 can slant the sill 800 and the front floor
  • the collision force transmitted from the beam 500 is transmitted to the sub-frame, so that the collision force can be effectively transmitted, and the collision performance of the vehicle can be improved.
  • the width of the middle section 902 is greater than the width of the front section 901, and the outer wall of the middle section 902 is abutted against the inner wall of the sill beam 800.
  • a portion of the midsection 902 can be flared outwardly such that the midsection 902 can be coupled to the rear end of the outer sill beam 800 such that the rear floor rail 900 and the sill beam 800 can be secured.
  • the vehicle body 10000 may further include: a floor tunnel 1000 and a rear floor cross member 1100.
  • the floor tunnel 1000 is connected between the rear end of the front rail 300 and the rear floor cross member 1100, and the rear floor cross member 1100 is further It is coupled to the rear floor rail 900 to form a force-carrying closed loop structure with the floor tunnel 1000, the front floor rail 500, and the rear floor rail 900.
  • the front side member 300 can not only transmit the impact force to the rocker beam 800 and the front floor rail 500, but also transmit the impact force to the floor tunnel 1000.
  • the floor tunnel 1000 can transmit a collision force to the rear floor rail 900 through the rear floor cross member 1100. This can better enrich the floor collision force transmission path, so that the collision force can be effectively dispersed, and the collision performance of the vehicle can be improved.
  • a medium passage force transmission passage 1001 extending in the front-rear direction is formed in the floor passage 1000.
  • the middle channel force transmission path 1001 can directly transmit the collision force in the front-rear direction, so that the force transmission effect of the channel 1000 in the floor can be further improved, and the transmission efficiency can be improved.
  • the middle channel force transmission path 1001 may be a groove.
  • the medium channel force transmission path 1001 thus set has a reliable transmission force and is simple to set up.
  • the left channel and the right side of the channel 1000 in the floor are provided with a middle channel force transmission path 1001, and the middle channel force transmission path 1001 on the left side corresponds to the front floor longitudinal beam 500 on the left side, and is located at the right side.
  • the side center channel force transmission path 1001 corresponds to the right front floor rail 500.
  • the vehicle body 10000 may further include: a middle passage connecting plate 1002 connected between the front floor longitudinal beam 500 and the floor middle passage 1000, the middle passage connecting plate 1002, and the front longitudinal beam 300.
  • the rear and front floor rails 500 form a Y-shaped force transmitting structure. In this way, the force transmission efficiency is high and the force transmission is dispersed, so that the collision performance of the vehicle can be improved.
  • a front torsion box 801 is connected between the sill beam 800 and the rear portion of the front side member 300
  • a middle passage connecting plate 1002 is connected between the floor center passage 1000 and the rear portion of the front side member 300, and the front torsion box 801,
  • the front floor rail 500 and the middle passage connecting plate 1002 form a three-pronged structure.
  • the front longitudinal beam 300 can transmit force in the latter three directions, thereby improving the force transmission effect and improving the collision performance of the vehicle.
  • the vehicle body 10000 includes a front impact beam 200, an energy absorbing box 201, a front side member 300, a front end closing structure 700, a top side rail 600, a plurality of connecting portions, and an A-pillar.
  • front side frame 300 is two symmetrical sides
  • the top side rail 600 is two symmetrical sides.
  • the collision force generated by the collision is directly transmitted to the front impact beam 200, and the front impact beam 200 transmits the collision force to the rear front side frame 300 after the energy absorption boxes 201 on both sides absorb the energy, each of which
  • the front impact beam 200 has a plurality of force transmission passages transmitted to the A-pillar 100, wherein the A-pillar 100 is connected to the dash panel 400 and the side panel 1400, so that the force can be effectively decomposed.
  • the collision force transmitted backward by the front side member 300 can also be roughly divided into two directions, one for the dash panel 400 and the side panel 1400, and one for the floor direction.
  • the front side rail 300 can transmit a part of the collision force to the top side rail 600 through the first bracket 601, and the top side rail 600 can transmit the partial collision force to the A-pillar 100, so that By enriching the transmission path of the collision force, the burden of the front side member 300 can be alleviated, and the collision performance of the vehicle can be improved.
  • the front side member 300 can transmit another part of the collision force to the upper side rail 600 through the second bracket 602, and the top side rail 600 can transmit the partial collision force to the A-pillar 100, thereby enriching the transmission path of the collision force and reducing the front side member.
  • the burden of 300 can improve the collision performance of the vehicle.
  • the second bracket 602 includes a first connecting member 6021 and a second connecting member 6022, and the second connecting member 6022 is configured to connect the front end closing structure 700, so that the front longitudinal beam 300 can pass a part of the collision force through the front end.
  • the closed structure 700 is transmitted to the second bracket 602, and the second bracket 602 is further transmitted to the upper side rail 600.
  • the front end closing structure 700 can make the collision force transmission uniform and can improve the force transmitting effect.
  • the front side member 300 can also transmit a further part of the collision force to the upper side rail 600 through the third bracket 603.
  • the top side rail 600 can transmit the partial collision force to the A-pillar 100, thereby enriching the transmission path of the collision force and reducing the front longitudinal direction.
  • the burden of the beam 300 can improve the collision performance of the vehicle.
  • first bracket 601, the second bracket 602 and the third bracket 603 are a plurality of connecting portions of the vehicle body 10000, and the plurality of connecting portions disposed in this manner can increase the force transmission path between the front longitudinal beam 300 and the upper side rail 600, and The force of the first bracket 601, the second bracket 602, and the third bracket 603 does not conflict with each other, and may even complement each other.
  • the first bracket 601, the second bracket 602, and the third bracket 603 may The collision force at different positions of the front side frame 300 is dispersedly transmitted to the upper side rail 600, so that the force transmission effect can be better improved.
  • a wheel cover 1200 is disposed between the rear portion of the front side frame 300 and the dash panel 400.
  • the wheel cover 1200 is provided with a wheel cover reinforcing beam 1300.
  • the front lower end of the wheel cover reinforcing beam 1300 is connected to the rear side frame 300.
  • it is then integrally connected to the wheel cover 1200, so that the front side member 300 can transmit a further part of the collision force to the wheel cover reinforcing beam 1300, and the wheel cover reinforcing beam 1300 can be transmitted to the dash panel 400 through the wheel cover 1200.
  • the siding 400 continues to pass backwards.
  • the wheel cover reinforcing beam 1300 can effectively enrich the force transmission path, can effectively decompose the collision force, and can improve the collision performance of the vehicle.
  • a portion corresponding to the wheel house reinforcing beam 1300 at the rear of the dash panel 400 is provided with a connecting member 1500 that can effectively connect the dash panel 400 and the side panel 1400, and the connecting member 1500 is also connected to the front wall upper cross member 402. At the office. Therefore, after the wheel cover reinforcing beam 1300 is transmitted to the dash panel 400, the collision force can be transmitted on the front middle beam 404 on the dash panel 400, and can also be transmitted back to the side wall 1400 through the connecting member 1500, so that The collision force can be further dispersed, the transmission efficiency can be improved, and the collision performance of the vehicle can be improved.
  • the collision force transmitted from the upper side rail 600 to the A-pillar 100 can be transmitted to the dash panel 400 and the side panel 1400, so that the collision force can be further dispersed. Improve the force transmission effect.
  • the collision force transmitted to the dash panel 400 can be transmitted from the both ends to the midpoint on the front upper cross member 402, and the collision force transmitted to the midpoint can be transmitted downward through the front lower vertical beam 403, wherein
  • the channel 401 in the dash panel is connected to the channel 1000 in the floor so that the impact force on the dash panel 400 can be directly transmitted to the floor. Further forms of force transmission between the dash panel 400 and the floor will be described in detail later.
  • the impact force on the side panel 1400 can be directly transmitted backward, and the impact force on the side panel 1400 can also be transmitted to the sill beam 800, and the sill beam 800 is transmitted backward.
  • the rear end of the front side frame 300 is coupled to the dash panel 400, and the rear ends of the two front side members 300 are also coupled to the front middle beam 404 on the dash panel 400, and the two front side members 300
  • the front impact beam 200 and the front middle beam 404 form a force-carrying closed-loop structure.
  • the front side member 300 can also transmit a further part of the collision force to the dash panel 400 and the front middle beam 404, and the front middle beam 404 can further decompose the collision force, thereby reducing the intrusion amount of the dash panel 400. Provide enough space for passengers to survive.
  • the front middle beam 404 is disposed on the front surface of the dash panel 400. Specifically, the front middle beam 404 is connected to the front lower plate 405, and the front lower plate 405 is provided with a front lower plate rib, under the front wall
  • the plate stiffener overlaps the front cowl lower plate 405 with a portion of the front cowl middle beam 404, so that the collision force transmitted to the dash panel 400 can be transmitted through the front wall lower plate stiffener, and the front cowl lower plate stiffener can collide
  • the force is transmitted to the floor longitudinal beam 1700, and the floor longitudinal beam 1700 can further transmit the collision force to the seat front beam 1601, and the seat front beam 1601 can be transmitted to both sides, so that the seat front beam 1601 can transmit a part of the collision force.
  • the sill beam 800 is transmitted to the outside, and another portion of the collision force can be transmitted to the inner floor tunnel 1000. This can effectively enrich the force transmission path of the collision force on the dash panel 400 and the floor, can effectively disperse the collision force, and can improve the collision performance of the vehicle.
  • the seat rear cross member 1602 is connected between the floor tunnel 1000 and the sill beam 800, so that the passage to the floor passage 1000 and the sill beam 800 can also be transmitted to the seat rear cross member 1602 in the direction of the rearward transmission. Part of it, so that the force transmission path can be further enriched.
  • the force transmission path on the dash panel 400 is roughly divided into five: the first is the front middle beam 404, the second is the front wall upper beam 402, the front wall lower vertical beam 403 and the dash panel
  • the channel 401, the third strip is the front lower plate stiffener and the floor upper rail 1700, the fourth strip is the joint member 1500 and the side panel 1400, and the fifth strip is the A-pillar 100 and the side panel 1400.
  • the rear end of the front side rail 300 also joins the rocker beam 800, the front floor rail 500, and the floor center tunnel 1000, and as shown in Figure 12, the rocker beam 800, the front floor rail 500, and the floor tunnel 1000 are
  • the trigeminal structure is arranged, in particular, a front torsion box 801 is disposed between the sill beam 800 and the rear end of the front side member 300, and a middle passage connecting plate 1002 is further disposed between the floor middle passage 1000 and the rear end of the front side member 300.
  • the collision force thus transmitted to the rear end of the front side member 300 can be transmitted in three directions, one to the sill beam 800, one to the front floor rail 500, one to the floor center passage 1000, the sill beam 800 and the front floor.
  • the stringer 500 can be transmitted backward to the rear floor rail 900, and the middle passage channel 1000 is provided with a middle passage force transmission passage 1001, and the middle passage force transmission passage 1001 can be transmitted to the rear floor rail 900 through the rear floor cross member 1100, the rear floor
  • the stringer 900 is then passed back to the sub-frame. This obviously enriches the force transmission path of the collision force on the floor, can effectively decompose the force, and can improve the collision force.
  • the force transmission path on the floor is roughly four: the first is the front torsion box 801, the sill beam 800 and the rear floor stringer 900, and the second is the front floor rail 500 and the rear floor rail 900 The third is the middle channel connecting plate 1002, the rear floor beam 1100 and the rear floor stringer 900, and the fourth is the floor upper rail 1700, the seat front cross member 1601, the sill beam 800 and the rear floor rail 900.
  • the collision force can be transmitted from the front impact beam 200 to the rear subframe, so that the force transmission path is long, the force transmission effect is good, and the force transmission path is more.
  • the effect of decomposing the force is better, so that the structural reliability of the body 10000 can be effectively improved, and the collision performance of the vehicle can be improved.
  • the collision force can be transmitted to the A-pillar 100 through the side wall 1400, and the A-pillar 100 is transmitted to the front longitudinal beam 300 through a plurality of force transmission channels, and the A-pillar 100 can also be transmitted to the dash panel 400.
  • the dash panel 400 is transmitted to the floor through a plurality of force transmission channels.
  • the collision force can be transmitted to the front longitudinal beam 300 through the sill beam 800.
  • the front longitudinal beam 300 can be transmitted to the A-pillar 100 through a plurality of force transmission channels, and the collision force can also pass through the rear floor.
  • the beam 900 is passed backwards to the sub-frame.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne une carrosserie de véhicule (10000), comprenant deux montants A (100) ; une poutre anti-collision avant (200) ; deux rails avant (300), les extrémités avant des deux rails avant (300) étant respectivement reliées à deux extrémités de la poutre anti-collision avant (200) et chaque rail avant (300) étant relié, par l'intermédiaire d'une pluralité de trajets de transfert de force, au montant A (100) sur le même côté ; un tableau de bord (400), les extrémités arrière des deux rails avant (300) étant reliées au tableau de bord (400), une partie inférieure du tableau de bord (400) est pourvue d'un trajet médian de tableau de bord (401) et le tableau de bord (400) est relié aux deux montants A (100) ; une poutre transversale supérieure de tableau de bord (402), disposée au niveau d'une partie supérieure du tableau de bord (400) ; et une poutre verticale inférieure de tableau de bord (403), une extrémité supérieure de la poutre verticale inférieure de tableau de bord (403) étant reliée à la poutre transversale supérieure de tableau de bord (402) et une extrémité inférieure s'étendant jusqu'au trajet central de tableau de bord (401). La disposition d'une pluralité de trajets de transfert de force peut absorber et annuler efficacement et rapidement une force et transférer efficacement une force de collision arrière de manière dispersée, ce qui réduit significativement l'intrusion du tableau de bord et évite un endommagement grave de la carrosserie du véhicule.
PCT/CN2018/081269 2017-03-31 2018-03-30 Carrosserie de véhicule WO2018177399A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710211449.6 2017-03-31
CN201710211449.6A CN108001538A (zh) 2017-03-31 2017-03-31 车身

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WO2018177399A1 true WO2018177399A1 (fr) 2018-10-04

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