WO2019185023A1 - 车身结构及汽车 - Google Patents

车身结构及汽车 Download PDF

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Publication number
WO2019185023A1
WO2019185023A1 PCT/CN2019/080431 CN2019080431W WO2019185023A1 WO 2019185023 A1 WO2019185023 A1 WO 2019185023A1 CN 2019080431 W CN2019080431 W CN 2019080431W WO 2019185023 A1 WO2019185023 A1 WO 2019185023A1
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WO
WIPO (PCT)
Prior art keywords
battery pack
mounting
connecting plate
battery
vehicle body
Prior art date
Application number
PCT/CN2019/080431
Other languages
English (en)
French (fr)
Inventor
赵彦利
谭小东
陈汝亮
曾锦川
李岩
Original Assignee
比亚迪股份有限公司
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 比亚迪股份有限公司 filed Critical 比亚迪股份有限公司
Publication of WO2019185023A1 publication Critical patent/WO2019185023A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S5/00—Servicing, maintaining, repairing, or refitting of vehicles
    • B60S5/06—Supplying batteries to, or removing batteries from, vehicles
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0438—Arrangement under the floor

Definitions

  • the present disclosure belongs to the field of new energy automobile technology, and in particular relates to a vehicle body structure and an automobile.
  • the existing front floor of the automobile is usually a sheet metal panel structure, and is welded to the floor skeleton as an assembly on the welding line. As a part of the body-in-white, it is an important part of the seal of the passenger compartment.
  • the front cover of the automobile and the sealing cover of the battery pack are two independent parts, and there is a matching gap requirement between the two, and a reserved gap of 10-20 mm is required to avoid interference or abnormal noise, and this structure sacrifices Z.
  • the height to the (vehicle height) causes space waste, resulting in tight layout space, low space utilization, and a large front panel assembly weight.
  • the front side of the front side member of the electric vehicle and the front side of the rear side member are provided with two battery pack mounting rails to provide a mounting point for the battery pack, and the width of the battery pack is limited to the left and right battery pack installation longitudinal beams.
  • the battery pack can accommodate fewer battery modules and the battery pack has a smaller capacity. In turn, it affects the endurance of electric vehicles.
  • the battery pack of the existing electric vehicle is usually a whole, and after the battery pack fails, the electric vehicle cannot continue to travel.
  • the technical problem to be solved by the present disclosure is to provide a vehicle body structure and a vehicle for the problem that the existing electric vehicle cannot continue to travel after the battery pack fails.
  • an embodiment of the present disclosure provides a vehicle body structure including a battery pack mounting frame, a left sill, a right sill, and a plurality of battery packs, the battery pack mounting frame being fixedly coupled to the left sill and Between the right sills, the battery pack mounting frame includes a plurality of closed-loop beam structures, and the inner side of the closed-loop beam structure forms a notch space, and each of the battery packs is disposed on the corresponding notch space;
  • the battery pack includes a battery pack sealing cover and a battery tray, and a sealed space for accommodating the battery module is formed between the battery pack sealing cover and the battery tray, and the top edges of the battery pack sealing covers of the plurality of battery packs are respectively connected Corresponding inner sides of the closed-loop beam structure and covering the corresponding notch spaces to form a front floor.
  • the battery pack mounting frame includes a plurality of closed-loop beam structures, the inside of the closed-loop beam structure forms a notch space, the battery pack is disposed on the corresponding notch space, and the top of the battery pack sealing cover of the plurality of battery packs The edges are respectively connected to the inside of the corresponding closed-loop beam structure and cover the corresponding notch spaces to form the front floor.
  • the notch space is covered by the battery pack sealing cover, and the plurality of battery pack sealing covers are combined to form the front floor, and the battery pack sealing cover is the front floor.
  • One part is equivalent to combining the traditional front floor and the battery pack sealing cover, saving the Z-direction space of 10-20mm between the traditional front floor and the battery pack sealing cover, which is equivalent to the overall lifting of the battery pack, and increases
  • the ground clearance of the vehicle body improves the road passability of the vehicle and improves the space utilization rate, alleviating the total arrangement pressure and reducing the weight of the front floor assembly.
  • the battery pack mounting frame can be lowered with the lifting of the battery pack to lower the design height, so that the battery pack mounting frame can be designed to be lighter in weight, further reducing the weight of the front floor assembly.
  • the battery pack mounting frame is fixedly connected between the left sill and the right sill, and the battery pack mounting frame comprises a plurality of closed-loop beam structures, and the plurality of battery packs independently of each other are respectively installed on the inner side of the plurality of closed-loop beam structures. Notched space. When a battery pack fails, the other battery packs can work normally, thereby avoiding the risk that the vehicle cannot continue to travel due to a sudden failure of one battery pack.
  • an embodiment of the present disclosure also provides an automobile including the above-described vehicle body structure.
  • FIG. 1 is a top plan view of a vehicle body structure according to an embodiment of the present disclosure
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1;
  • Figure 3 is a cross-sectional view taken along line B-B of Figure 1;
  • FIG. 4 is a bottom view of a vehicle body structure according to an embodiment of the present disclosure.
  • FIG. 5 is an exploded view of a vehicle body structure according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic view showing the connection between the front seat rear mounting beam and the battery pack mounting beam of the vehicle body structure according to an embodiment of the present disclosure
  • Figure 7 is a cross-sectional view taken along line C-C of Figure 6;
  • FIG. 8 is a diagram showing a collision energy transmission path of a vehicle body structure in the event of a side collision of a vehicle according to an embodiment of the present disclosure
  • FIG. 9 is a top plan view of a vehicle body structure according to another embodiment of the present disclosure.
  • Figure 10 is a cross-sectional view taken along line D-D of Figure 9;
  • FIG. 11 is a bottom view of a vehicle body structure according to another embodiment of the present disclosure.
  • FIG. 12 is an exploded view of a vehicle body structure according to another embodiment of the present disclosure.
  • FIG. 13 is a collision energy transmission path diagram of a vehicle body structure in the event of a frontal collision of a vehicle according to another embodiment of the present disclosure
  • Figure 14 is a schematic illustration of a car in accordance with an embodiment of the present disclosure.
  • the “up” and “down” directions and the “top” and “bottom” directions refer to the vehicle height direction of the automobile, that is, the Z direction shown in FIG. 5, and the “front” and “rear” directions refer to the vehicle length direction of the automobile.
  • the X direction shown in FIG. 5 the “left” and “right” directions refer to the vehicle width direction of the automobile, that is, the Y direction shown in FIG. 5, and the "inside” and “outer” directions refer to the vehicle along the vehicle. Inside, or in the direction of extending outside the car.
  • the vehicle body structure 100 provided by the embodiment of the present disclosure includes a battery pack mounting frame 1 , a left door sill 2 , a right sill 3 , and a plurality of battery packs 4 , and the plurality of battery packs 4 are independent of each other.
  • the battery pack mounting frame 1 is fixedly connected between the left sill 2 and the right sill 3, and the battery pack mounting frame 1 includes a plurality of closed-loop beam structures, and the closed-loop beam structure is provided with a notch space 181, A battery pack 4 is disposed on the corresponding notch space 181.
  • a plurality of may be understood as two or more.
  • a plurality of battery packs 4 means that the number of battery packs 4 is two, three or more.
  • Multiple closed loop beam structure means that the battery pack mounting frame 1 includes two, three or more closed loop beam structures.
  • the battery pack 4 includes a battery pack sealing cover 41 and a battery tray (not shown), and a sealed space for accommodating the battery module is formed between the battery pack sealing cover 41 and the battery tray, and the plurality of battery packs 4
  • the top edge of the battery pack sealing cover 41 is respectively connected to the inner side of the corresponding closed-loop beam structure and covers the corresponding notch space 181 to form a front floor.
  • the mounting points can only be provided in the form of split small bracket welding, and the present disclosure can reduce the welding process by reducing the number of mounting points and reduce the weight of the front floor assembly.
  • the battery pack mounting frame 1 can be lowered with the lifting of the battery pack 4 to lower the design height, so that the battery pack mounting frame 1 can be designed to be lighter in weight, further reducing the front floor total. The weight of the.
  • the closed-loop beam structure includes an annular connecting plate 18 formed on the connecting plate 18, and the top edges of the battery pack sealing covers 41 of the plurality of battery packs 4 are respectively It is connected to the inner side of the corresponding connecting plate 18 and covers the corresponding notch space 181 to form a front floor.
  • the battery pack sealing cover 41 includes a top cover 411 and a side cover 412 surrounding the outer edge of the top cover 411, the side cover 412
  • the top side is connected under the outer edge of the top cover 411
  • the bottom side of the side cover 412 is connected to the outer edge of the battery tray
  • the top cover 411 of the plurality of battery packs 4 are combined to form a front side.
  • the floor, the outer edge of the battery tray is fixedly coupled to the closed loop beam structure.
  • the top cover 411 is a part of the battery pack sealing cover 41.
  • the plurality of top covers 411 are combined to form a front floor, and the plurality of top covers 411 are directly laid on the carpet.
  • the battery tray includes a battery tray panel recessed downwardly and a plurality of mounting plates fixedly attached to the battery tray panel and projecting outwardly from an outer edge of the battery tray panel, the battery tray
  • the top side edge of the panel is bent outward to form a first flange
  • the bottom side edge of the side cover 412 is outwardly bent to form a second flange 4121 (shown in FIG. 5 )
  • the second flange 4121 A seal is attached to the upper surface of the first flange.
  • the sealing connection here can be a gasket or glue.
  • the second flange 4121 and the first flange may also be fastened by bolts.
  • the mounting plate is fixedly connected to the closed-loop beam structure by bolting or the like. Thereby, a plurality of battery packs 4 are connected to the battery pack mounting frame 1.
  • the battery pack mounting frame 1 includes a battery pack front mounting beam 11, a battery pack rear mounting beam 12, a battery pack left mounting stringer 13, and a battery pack right mounting vertical.
  • the beam 14 and the middle portion of the battery pack are mounted, and the left side longitudinal beam 13 of the battery pack is fixedly connected to the inner side of the left sill 2 by welding or the like, and the right side of the battery pack 14 is fixedly connected by welding or the like.
  • the inside of the right threshold 3 is described.
  • the battery pack front mounting beam 11, the battery pack right mounting stringer 14, the battery pack rear mounting beam 12 and the battery pack left mounting stringer 13 are sequentially connected to form a rectangular frame, and the battery pack middle mounting beam is connected
  • a plurality of the closed-loop beam structures are formed between the battery pack middle mounting beam and the rectangular frame on the inner side of the rectangular frame.
  • a plurality of the battery packs 4 are mounted one by one on a plurality of the closed loop beam structures.
  • the battery pack 4 is formed in a continuous installation; on the other hand, the strength and rigidity of the closed-loop beam structure itself are large, so that the entire battery pack mounting frame 1 has greater strength and rigidity, and the battery pack mounting frame is enhanced. The deformation resistance is improved, and the installation strength of the battery pack 4 is improved.
  • the battery pack of the electric vehicle is installed in the middle of the front side of the front longitudinal beam and the front section of the rear longitudinal beam, and the two left and right battery packs are installed, that is, the rear section of the left front longitudinal beam and the front section of the left rear longitudinal beam are disposed.
  • the left side of the battery pack and the battery pack are installed on the right side of the front floor panel to provide a mounting point for the battery pack.
  • the width of the battery pack is limited between the left side of the battery pack and the right side of the battery pack.
  • the distance between the left side of the battery pack and the left door sill and the right side of the battery pack and the right sill is large.
  • the width of the battery pack is limited, the battery pack can accommodate fewer battery modules, and the capacity of the battery pack is smaller, thereby affecting the endurance of the electric vehicle.
  • the battery pack left mounting rail 13 is directly connected to the left sill 2
  • the battery pack right mounting rail 14 is directly connected to the right sill 3
  • the battery pack is mounted to the left side sill 13 and
  • the width between the right side of the battery pack is relatively large.
  • more battery packs 4 can be placed to increase the total battery capacity of the plurality of battery packs 4, thereby improving the life of the electric vehicle. ability.
  • the battery pack left mounting rail 13 and the battery pack right mounting rail 14 are open beams, and the first outer flange 131 is formed on each side of the top opening of the left side rail 13 of the battery pack.
  • the first inner flange 132 is fixedly connected to the left sill 2 by welding or the like, and the first inner flange 132 is fixedly connected to the left of at least one of the top cover 411 Side, for example, when there are two battery packs 4 side by side, the first inner flange 132 is fixedly connected to the left side of the top cover 411 of the battery pack 4 on the left side; When the two battery packs 4 are arranged side by side, the first inner flange 132 is fixedly connected to the left side of the top cover 411 of the front and rear battery packs 4.
  • a second outer flange 141 and a second inner flange 142 are respectively formed on two sides of the top opening of the right side of the battery pack, and the second outer flange 141 is fixedly connected to the right threshold 3 by welding or the like.
  • the second inner flange 142 is fixedly connected to the right side of at least one of the top cover plates 411.
  • the second inner flange 142 is fixedly connected to The right side of the top cover 411 of the battery pack 4 on the right side; for example, when there are two battery packs 4 side by side, the second inner flap 142 is fixedly connected to the front and rear of the battery packs The right side of the top cover 411 of 4.
  • a closed cavity is formed between the top cover 411 and the left side longitudinal beam 13 of the battery pack, and the closed cavity can transmit a collision force in the front-rear direction when a positive impact occurs to disperse the force of the left sill 2.
  • a closed cavity is formed between the top cover 411 and the right side of the battery pack, and the closed cavity can transmit a collision force in the front-rear direction when a positive impact occurs to disperse the force of the right sill 3.
  • the battery pack middle mounting beam includes a battery pack middle mounting beam 15a, and the battery pack middle mounting beam 15a is located at the front of the battery pack mounting beam 11 and the battery pack.
  • the left end of the battery pack middle mounting beam 15a is fixedly connected to the battery pack left mounting stringer 13
  • the right end of the battery pack middle mounting beam 15a is fixedly connected to the right side of the battery pack.
  • the battery pack middle mounting beam 15a and the rectangular frame form two closed-loop beam structures arranged side by side, and the closed-loop beam structure on the front side is installed by the battery pack front mounting beam 11 and the battery pack left.
  • the beam 13, the middle package mounting beam 15a of the battery pack and the right mounting longitudinal beam 14 of the battery pack are connected in sequence, and the closed-loop beam structure on the rear side is assembled by the battery pack, the cross member 12, the battery pack left mounting stringer 13, and the battery The middle middle mounting beam 15a and the battery pack right mounting longitudinal beam 14 are connected in series.
  • the battery pack mounting frame 1 is provided with two battery packs 4 arranged side by side in front and rear, and the battery pack 4 on the front side is mounted on the closed-loop beam structure on the front side, and the battery pack 4 on the rear side is Installed on the closed-loop beam structure on the rear side. That is, in this embodiment, the existing integral battery pack is divided into two battery packs 4 which are arranged side by side. After one of the battery packs 4 fails, the other battery pack 4 can operate normally and the vehicle can continue to travel.
  • the connecting plate 18 is fixedly connected to the top cover 411 around the outer side of the top cover 411.
  • the battery pack mounting frame 1 including the battery pack front mounting beam 11, the battery pack rear mounting beam 12, the battery pack left mounting stringer 13, the battery pack right mounting stringer 14 and the battery pack middle mounting beam 15a
  • the front side is connected to the top side of the battery pack front mounting beam 11, and the left side of the front side connecting board 18 is connected to the top side of the battery pack left mounting stringer 13 (the first inner flap 132)
  • the rear side of the front side connecting plate 18 is connected to the top side of the battery pack middle mounting cross member 15a, and the right side of the front side connecting board 18 is connected to the top side of the battery pack right side mounting rail 14 (the second inner flap 142) ).
  • the front side of the rear side connecting plate 18 is connected to the top side of the battery pack middle mounting cross member 15a, and the left side of the rear side connecting board 18 is connected to the top side of the battery pack left mounting side member 13 (first The inner side flange 132), the rear side of the rear side connecting plate 18 is connected to the top side of the battery pack rear mounting beam 12, and the right side of the rear side connecting board 18 is connected to the top side of the battery pack right side mounting rail 14 (the first side) Two inner flanges 142).
  • the "front side connecting plate 18" and the “rear side connecting plate 18” are relatively speaking, that is, the two connecting plates 18 are distributed along the front and rear direction of the vehicle body structure 100, and the front side is
  • the connecting plate 18 refers to the connecting plate 18 closer to the front end of the vehicle body structure 100
  • the connecting plate 18 on the rear side refers to the connecting plate 18 closer to the rear end of the vehicle body structure 100, in other words, in the front-rear direction of the vehicle body structure 100, the front side connection
  • the plate 18 is located on the front side of the connecting plate 18 on the rear side
  • the connecting plate 18 on the rear side is located on the rear side of the connecting plate 18 on the front side.
  • Each of the annular connecting plates 18 connects the four sides of the top cover 411 of each battery pack 4 to the corresponding closed-loop beam structure.
  • the annular web 18 can also fill the gap between the top cover 411 and the closed loop beam structure.
  • the left side portion, the right side portion, the front side portion and the rear side portion of the connecting plate 18 are independent sheet metal members, and are joined into a ring shape by means of tailor welding.
  • the amount of sheet metal can be reduced and the material utilization rate can be improved with respect to the joint plate 18 which is integrally formed by hollowing out a large area of the sheet metal part.
  • the connecting plate 18 may also be an integrally formed plastic plate member.
  • the connecting plate 18 in the form of a plastic plate member and the peripheral member (the closed-loop beam structure and the top cover plate 411, etc.)
  • the connection is in the form of glued and riveted.
  • the vehicle body structure 100 further includes a front seat front mounting beam 5 and a front seat rear mounting beam 6 , and the front seat front mounting beam 5 . It is fixedly attached to the front floor by gluing or the like.
  • the left end of the front seat front mounting beam 5 is fixedly connected to the left door sill 2 by welding or the like, and the right end of the front seat front mounting beam 5 is fixedly connected to the right sill 3 by welding or the like.
  • the left end of the front seat rear mounting beam 6 is fixedly connected to the left door sill 2 by welding or the like, and the right end of the front seat rear mounting beam 6 is fixedly connected to the right sill 3 by welding or the like.
  • the battery pack middle mounting cross member 15a is fixedly connected under the front seat rear mounting cross member 6 by welding or the like.
  • the battery pack middle mounting cross member 15a and the front seat rear mounting cross member 6 are superimposed over the entire length, and the front seat rear mounting cross member 6 can improve the strength and rigidity of the battery pack middle mounting cross member 15a, and strengthen the strength of the battery pack mounting frame 1. And the rigidity further improves the installation strength of the battery pack 4.
  • the battery pack middle mounting beam 15a is a closed beam (having a closed cross section), and the front seat rear mounting beam 6 is an open beam.
  • the battery pack middle mounting cross member 15a and the front seat rear mounting cross member 6 are connected in the vehicle height direction, that is, the top of the battery pack middle mounting cross member 15a is fixedly connected to the bottom of the front seat rear mounting cross member 6.
  • the bottom sides of the front seat rear mounting beam 6 are formed with welded flanges, and the sides of the top plate of the battery pack middle mounting beam 15a in the form of closed beams protrude outwardly to form a connecting edge, and the front seat is rearward
  • the welded flange of the mounting cross member 6 is joined to the connecting side of the battery pack middle mounting cross member 15a by spot welding.
  • the welded flange on the front side of the front seat rear mounting beam 6 and the connecting side of the front side of the battery pack middle mounting beam 15a are fixedly connected by bolts or the like by integral welding of the front side.
  • the upper surface of the connecting plate 18 of the battery pack 4 on the front side, the welded flange on the rear side of the front seat rear mounting beam 6 and the connecting side of the rear side of the battery pack middle mounting beam 15a are formed by spot welding.
  • the integral flange is fixedly connected to the upper surface of the connecting plate 18 on the rear side by bolts or the like, and the connecting edge of the middle portion of the battery pack mounting flange 15a protrudes from the welded flange of the front seat rear mounting beam 6, protruding Partially covered directly by the carpet.
  • the battery pack middle mounting beam 15a is indirectly connected to the left sill 2 and the right sill 3 .
  • the B pillars on the left and right sides are connected to the left sill 2 and the right sill 3, respectively.
  • the collision energy from the side collision is transmitted from the left sill 2 portion to the battery pack left mounting stringer 13, and the beam is installed through the front of the battery pack.
  • the middle part of the battery pack is installed with a cross beam 15a, a battery pack is mounted with a cross beam 12, a front seat front mounting beam 5 and a front seat rear mounting beam 6 are dispersedly transmitted to protect the occupant from impact.
  • the direction of the arrow in Fig. 8 is the direction of collision energy transmission.
  • the top cover 411 is provided with a battery pack outlet structure 413 for passing the battery pack harness, and a seal is formed at the battery pack outlet structure 413.
  • the battery pack outlet port structure 413 of the battery pack 4 on the front side and the battery pack outlet port structure 413 of the battery pack 4 on the rear side are in the same straight line in the vehicle length direction, and the front side of the battery pack 4
  • the battery pack outlet structure 413 and the battery pack outlet port structure 413 of the battery pack 4 on the rear side are located just below the middle passage to facilitate introduction of the battery pack harness into the middle passage.
  • the battery pack sealing cover 41 is an integrally formed composite panel.
  • the material of the composite panel may be a SMC (Sheet Molding Compound) or a reinforced fiber composite sheet (for example, a carbon fiber composite sheet, a glass fiber composite sheet, and an aramid fiber composite sheet).
  • the battery pack sealing cover 41 is an integrally formed composite material panel. Therefore, the battery pack 4 only needs to form a seal between the battery pack sealing cover 41 and the battery tray, that is, through the clip. A sealing gasket disposed between the battery pack sealing cover 41 and the battery tray can seal the battery pack 4.
  • FIG. 9 through 12 illustrate a vehicle body structure 100 provided by another embodiment of the present disclosure.
  • the same points as those of the embodiment shown in Figs. 1 to 8 will not be described.
  • the battery pack middle mounting beam includes a battery pack middle mounting longitudinal beam 15b, and the battery pack middle mounting longitudinal beam 15b is a closed beam (having a closed section), and the closed mouth is closed.
  • the battery packs in the form of beams are protruded outwardly from both sides of the top plate of the middle mounting stringer 15b to form a connecting edge.
  • the connecting edge of the middle portion of the battery pack longitudinal member 15b is fixedly connected to the upper surfaces of the left and right connecting plates 18 by bolts or the like, and the top surface of the top cover plate 411 and the middle portion of the battery pack are mounted with the longitudinal beam 15b.
  • the top surface of the battery pack is substantially in the same horizontal plane, and the top surface of the longitudinal beam 15b of the middle portion of the battery pack is directly covered by the carpet.
  • the battery pack middle installation longitudinal beam 15b is located between the battery pack left installation longitudinal beam 13 and the battery pack right installation longitudinal beam 14, and the front end of the battery pack middle installation longitudinal beam 15b is fixedly connected to the front of the battery pack.
  • the rear end of the battery pack middle mounting stringer 15b is fixedly connected to the battery pack rear mounting beam 12.
  • the battery pack middle installation longitudinal beam 15b and the rectangular frame form two closed-loop beam structures arranged side by side.
  • the closed-loop beam structure on the left side is composed of the battery pack front mounting beam 11, the battery pack middle mounting stringer 15b, the battery pack rear mounting beam 12, and the battery pack left mounting stringer 13 in sequence, and the right side is connected.
  • the closed-loop beam structure is composed of the battery pack front mounting beam 11, the battery pack middle mounting stringer 15b, the battery pack rear mounting beam 12, and the battery pack right mounting stringer 14 in sequence.
  • the battery pack mounting frame 1 is provided with two battery packs 4 arranged side by side, and the battery pack 4 on the left side is mounted on the closed loop beam structure on the left side, and the battery pack 4 on the right side is Installed on the closed-loop beam structure on the rear side. That is, in this embodiment, the existing integral battery pack is divided into two battery packs 4 arranged side by side. After one of the battery packs 4 fails, the other battery pack 4 can operate normally and the vehicle can continue to travel.
  • the battery pack mounting frame 1 including the battery pack front mounting beam 11, the battery pack rear mounting beam 12, the battery pack left mounting stringer 13, the battery pack right mounting stringer 14 and the battery pack middle mounting rail 15b
  • the front side of the side connecting plate 18 is connected to the top side of the battery pack front mounting beam 11, and the left side of the left side connecting plate 18 is connected to the top side of the battery pack left mounting stringer 13 (the first inner flap 132).
  • the rear side of the connecting plate 18 on the left side is connected to the top side of the rear cross member 12 of the battery pack, and the right side of the connecting board 18 on the left side is connected to the lower surface of the connecting side of the side wall of the battery pack 15b.
  • the front side of the connecting plate 18 on the right side is connected to the top side of the front cross member 11 of the battery pack, and the left side of the connecting board 18 on the right side is connected to the lower surface of the connecting side of the side wall of the battery pack 15b.
  • the rear side of the connecting plate 18 of the battery pack 4 on the right side is connected to the top side of the rear cross member 12 of the battery pack, and the right side of the connecting board 18 of the rear side 4 is connected to the top side of the right side of the battery pack right side frame 14. (second inturned edge 142).
  • the vehicle body structure 100 further includes a left front longitudinal beam rear section 71 , a right front longitudinal beam rear section 72 , a dash lower beam 73 , a dash lower beam left connecting plate 74 , Front panel lower beam right connecting plate 75, front longitudinal beam rear section left inner connecting plate 76, front longitudinal beam rear section right inner connecting plate 77, front longitudinal beam rear section left outer connecting plate 78 and front longitudinal beam rear section right outer Connecting plate 79.
  • the left end of the dash lower beam 73 is connected to the left front side rail rear section 71 through the dash lower beam left connecting plate 74, and the right end of the dash lower beam 73 passes under the dash panel
  • a beam right connecting plate 75 is coupled to the right front side rail rear section 72.
  • the front side edge of the left inner connecting plate 76 of the rear side member rear section (ie, the front side edge of the front side member rear left inner connecting plate 76) is connected to the dash lower beam left connecting plate 74, the front side The outer edge of the left inner connecting plate 76 of the rear section of the beam (i.e., the side edge of the left inner connecting plate 76 of the rear longitudinal beam rear section away from the middle portion of the vehicle body structure 100) is connected to the left front longitudinal beam rear section 71, the front longitudinal beam rear
  • the rear side edge of the segment left inner connecting plate 76 (ie, the edge of the rear side of the left inner connecting plate 76 of the rear side member rear section) is connected to the battery pack front mounting beam 11, the front side rail rear right inner connecting plate 77
  • the front side edge is connected to the dash lower beam right connecting plate 75, and the outer side edge of the front side member right inner connecting plate 77 is connected with the right front side frame rear portion 72, and the front side member rear right inner connecting plate
  • the outer edge of the left outer connecting plate 78 of the rear side of the front side member is connected to the rear side of the left front side member 71, and the rear side edge of the left outer connecting plate 78 of the rear side of the front side member is connected with the front mounting beam 11 of the battery pack.
  • the outer side edge of the right outer connecting plate 79 of the rear side member of the front side member is connected to the rear front side member 72, and the rear side edge of the right outer connecting plate 79 of the front side member is connected to the battery pack front mounting beam 11.
  • the front inner side connecting plate 77, the front side member rear right outer connecting plate 78, the front side frame rear right outer connecting plate 79 and the battery pack front mounting beam 11 constitute a front frame structure 7.
  • the dash lower beam left connecting plate 74 and the dash lower beam right connecting plate 75 are respectively connected at the inner corners of the left front longitudinal beam rear section 71 and the right front longitudinal beam rear section 72, and laterally support the left front longitudinal beam rear section 71 and the right front side.
  • the rear section 72 of the stringer resists deformation.
  • the left inner connecting plate 76 at the rear of the front longitudinal beam, the right inner connecting plate 77 at the rear side of the front longitudinal beam, the left outer connecting plate 78 at the rear of the front longitudinal beam and the right outer connecting plate 79 at the rear of the front longitudinal beam effectively increase the left front longitudinal beam
  • the force receiving area during the force transmission process of the segment 71 and the right front longitudinal beam rear section 72 disperses the force, effectively suppresses the intrusion deformation of the dash panel which is retracted toward the interior of the vehicle when being pressed, and prevents the left front longitudinal caused by the compression bending deformation.
  • the rear portion of the beam rear section 71 and the right front side rail rear section 72 are inclined to the left and right. Further, the force received by the front portion of the right and left side members in the frontal collision is dispersed to the side.
  • the battery pack outlet port structure 413 of the battery pack 4 on the left side and the battery pack outlet port structure 413 of the battery pack 4 on the right side are in the same straight line in the vehicle width direction, and the left side is
  • the battery pack outlet port structure 413 of the battery pack 4 and the battery pack outlet port structure 413 of the battery pack 4 on the right side are located in the vehicle length direction on the front seat front mounting beam 5 and the front seat rear mounting beam 6 between.
  • the vehicle body structure 100 further includes a middle mounting stringer front connecting plate 161, a middle mounting stringer rear connecting plate 162, a front mounting beam left connecting plate 163, and a front mounting beam right connecting.
  • the front end of the battery pack middle mounting stringer 15b is connected to the middle of the battery pack front mounting beam 11 through the middle mounting stringer front connecting plate 161, and the rear end of the battery pack middle mounting rail 15b passes through the
  • the middle mounting stringer rear connecting plate 162 is connected to the middle of the battery pack rear mounting beam 12.
  • the front end of the battery pack left mounting stringer 13 is connected to the left end of the battery pack front mounting beam 11 through the left mounting rail front connecting plate 165 and the front mounting beam left connecting plate 163, and the battery pack is mounted on the right side.
  • the front end of the beam 14 is connected to the right end of the battery pack front mounting beam 11 through the right mounting stringer front connecting plate 167 and the front mounting beam right connecting plate 164.
  • the rear end of the battery pack left mounting stringer 13 is connected to the left end of the battery pack rear mounting beam 12 through the left mounting rail rear connecting plate 166 and the rear mounting beam left connecting plate 169, and the battery pack is mounted to the right.
  • the rear end of the longitudinal beam 14 is connected to the right end of the battery pack rear mounting beam 12 via the right mounting longitudinal beam rear connecting plate 168 and the rear mounting beam right connecting plate 170.
  • the stringer front connecting plate 167, the right mounting stringer rear connecting plate 168, the rear mounting beam left connecting plate 169, and the rear mounting beam right connecting plate 170 together constitute the battery pack mounting frame 1 (rear frame structure).
  • the front frame structure 7 and the rear frame structure (battery pack mounting frame 1) described above are connected together by the battery pack front mounting beam 11 to constitute the vehicle body structure 100 of the embodiment of the present disclosure.
  • the collision energy from the frontal collision is transmitted from the front frame structure 7 to the rear frame structure (battery pack mounting frame 1) through the battery pack front mounting beam 11 and passes through The stringer 8 is transmitted backwards to the rear of the vehicle body.
  • the direction of the arrow in Fig. 13 is the direction of collision energy transmission.
  • the middle mounting beams of the battery pack are all one beam, and the battery pack mounting frame includes two closed loop beam structures, and the number of battery packs is two.
  • the middle mounting beam of the battery pack includes a cross-orthogonal battery pack middle mounting stringer and a battery pack middle mounting beam.
  • four closed-loop beam structures are formed, and four independent battery packs can be installed (one front and one left) , one on the left and the back).
  • the middle mounting beam of the battery pack includes two parallel battery packs in the middle to install the longitudinal beams. At this time, three closed-loop beam structures are formed side by side in the vehicle width direction, and three independent battery packs can be installed (one left, right, and right). ).
  • the middle mounting beam of the battery pack includes two parallel battery pack middle mounting beams. At this time, three closed-loop beam structures are formed side by side in the length of the vehicle, and three independent battery packs can be installed (front, rear, and rear). .
  • the vehicle body structure 100 further includes a central passage mounting stud for mounting the auxiliary instrument panel and the shifting mechanism mounting bracket, and a power amplifier module mounting stud for mounting the power amplifier module.
  • Battery module mounting studs for mounting battery modules, wire harness mounting studs for mounting automotive wiring harnesses, duct mounting studs for air conditioning ducts, and sheet metal guards for air conditioning ducts
  • a guard rail mounting stud, the central passage mounting stud, a power amplifier module mounting stud, a battery module mounting stud, a harness mounting stud, a duct mounting stud, and a sheet metal guard mounting stud are integrally formed in the plurality of In the top cover (front floor).
  • the central channel mounting stud, the power amplifier module mounting stud, the battery module mounting stud, the harness mounting stud, the duct mounting stud, and the sheet metal mounting stud are in the form of a plurality of composite panels
  • the top cover is integrally formed.
  • the central passageway mounting studs replace the central passages on the existing body structure 100, thereby providing the auxiliary instrument panel and the shifting mechanism mounting bracket and the like. Installation point.
  • the power amplifier mounting bracket is replaced by the power amplifier module mounting stud to provide a mounting point for the power amplifier module.
  • the battery mounting bracket on the existing body structure 100 is replaced by a battery module mounting stud to provide a mounting point for the battery module.
  • the wire harness mounting stud, the air duct mounting stud and the sheet metal guard mounting stud replace the plurality of spare welding bolt brackets and the end face welding bolts on the existing body structure 100, thereby using the wire harness, the air conditioning duct and the air conditioning wind
  • a number of general layout modules, such as the sheet metal shield, provide mounting points.
  • an upper portion of the front floor is divided into a front mounting area, a middle mounting area, and a rear mounting area from front to back;
  • the central channel mounting stud is disposed at an intermediate position of the front mounting area,
  • the power amplifier module mounting stud and the wire harness mounting stud are disposed on a left side of the central mounting area, and the battery module mounting stud and the sheet metal guard mounting stud are disposed in the central mounting area
  • the duct mounting stud is disposed at an intermediate position of the rear mounting area.
  • the central channel mounting stud, the power amplifier module mounting stud, the battery module mounting stud, the harness mounting stud, and the air duct mounting are integrally formed in the front floor in the form of a composite panel composed of a plurality of top cover assemblies. Stud and sheet metal guard plate mounting studs can replace the sheet metal bracket at the corresponding position in the prior art, and do not need welding, which reduces the welding process, reduces the weight of the vehicle body, and improves the weight reduction factor of the vehicle body.
  • the use of the front floor in the form of composite panels and the replacement of individual sheet metal brackets have contributed significantly to the weight reduction of the body, resulting in a weight reduction of 22.7% for the body structure 100.
  • the top cover and the side cover are separately provided, and the top cover is an integrally formed composite panel, and the side cover is a sheet metal member. At this time, the top side edge of the side cover is bent inward to form a third flange, and the third flange is sealingly connected to the lower surface of the top cover by gluing.
  • the top cover and the side cover are separately provided, and the top cover is an integrally formed sheet metal member, and the side cover is an integrally formed sheet metal. Pieces.
  • the top side edge of the side cover is bent inward to form a third flange, and the third flange is sealingly connected under the top cover by welding, riveting or welding and riveting. surface.
  • the top cover for example, may be stamped and formed from a DC01 material having a thickness of 0.7 mm. At this time, due to the limitation of the stamping process, the top cover covers are respectively welded with the respective sheet metal brackets.
  • the top cover and the side cover are separately provided, and the top cover is an integrally formed sheet metal member, and the side cover is an integrally formed composite material plate.
  • the top side edge of the side cover is bent inward to form a third flange, and the third flange is sealingly connected to the lower surface of the top cover by gluing.
  • the top cover for example, may be stamped and formed from a DC01 material having a thickness of 0.7 mm. At this time, due to the limitation of the stamping process, the top cover covers are respectively welded with the respective sheet metal brackets.
  • the battery pack sealing cover is an integrally formed sheet metal member, that is, the top cover and the side cover are integrally stamped.
  • a DC01 material having a thickness of 0.7 mm can be formed by press forming.
  • the sheet metal sealing covers are respectively welded with the respective sheet metal brackets.
  • the commonality of the above embodiments is that the top cover portions of the battery pack sealing covers of the plurality of battery packs are combined to form the front floor (used as the front floor), and the carpet is directly laid over the top cover of the battery pack sealing cover.
  • an embodiment of the present disclosure also provides an automobile 200, as shown in FIG. 14, which includes the vehicle body structure 100 of the above embodiment.
  • the other battery packs 4 can work normally, thereby avoiding the risk that the vehicle cannot continue to travel due to a sudden failure of one battery pack 4.
  • the battery pack left mounting rail 13 is directly connected to the left sill 2
  • the battery pack right mounting rail 14 is directly connected to the right sill 3
  • the battery pack left mounting rail 13 and the battery pack are installed right.
  • the width between the longitudinal beams 14 is relatively large, and in the same lower space of the vehicle body floor, more battery packs 4 can be placed to increase the total battery capacity of the plurality of battery packs 4, thereby improving the endurance of the electric vehicle 200.
  • the front floor and the battery pack sealing cover are combined into one, which saves the Z-direction space of 10-20 mm between the traditional front floor and the battery pack sealing cover, which is equivalent to the overall lifting of the battery pack, and increases the ground clearance of the vehicle body.
  • the road surface passability of the vehicle is improved, the space utilization rate is improved, the total arrangement pressure is alleviated, the weight of the body structure 100 is reduced, and the vehicle is lightened.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Body Structure For Vehicles (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

一种车身结构及汽车，该车身结构包括电池包安装框架(1)、左门槛(2)、右门槛(3)及多个电池包(4)，电池包(4)安装框架(1)固定连接在左门槛(2)与右门槛(3)之间，电池包安装框架(1)包括多个闭环梁结构，闭环梁结构的内侧形成缺口空间(181)，每一电池包(4)设置在对应的缺口空间(181)上；电池包(4)包括电池包密封盖(41)及电池托盘，电池包密封盖(41)及电池托盘之间形成容纳电池模组的密闭空间，多个电池包(4)的电池包密封盖(41)的顶部边缘分别连接在对应的闭环梁结构的内侧并覆盖对应的缺口空间(181)，以形成前地板。该结构能避免因为一个电池包突发故障所导致的车辆无法继续行驶的风险。

Description

车身结构及汽车
相关申请的交叉引用
本公开基于申请号为201810279478.0，申请日为2018年03月30日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本公开作为参考。
技术领域
本公开属于新能源汽车技术领域，尤其涉及一种车身结构及汽车。
背景技术
现有汽车前地板通常为钣金面板结构，在焊装线上与地板骨架焊装为总成，作为白车身的一个零件，是构成乘员舱密封的重要零件。
相关技术中，汽车前地板与电池包密封盖为独立的两个零件，二者之间有配合间隙要求，需保证10～20mm的预留间隙以避免干涉或异响，此种结构牺牲了Z向(车高方向)高度，造成空间上的浪费，导致布置空间紧张，空间利用率低，并且前地板总成重量较大。
另外，相关技术中电动汽车的前纵梁后段与后纵梁前段中间设置左右两根电池包安装纵梁以为电池包提供安装点，电池包的宽度被限制在左右两根电池包安装纵梁之间，由于电池包左安装纵梁与左门槛以及电池包右安装纵梁与右门槛之间的距离较大，导致电池包所能容纳的电池模组较少，电池包的容量较小，进而影响电动汽车的续航能力。
此外，现有的电动汽车的电池包通常为一个整体，电池包发生故障后，电动汽车将无法继续行驶。
发明内容
本公开所要解决的技术问题是：针对现有的电动汽车在电池包发生故障后无法继续行驶的问题，提供一种车身结构及汽车。
为解决上述技术问题，一方面，本公开实施例提供一种车身结构，包括电池包安装框架、左门槛、右门槛及多个电池包，所述电池包安装框架固定连接在所述左门槛与右门槛之间，所述电池包安装框架包括多个闭环梁结构，所述闭环梁结构的内侧形成缺口空间，每一所述电池包设置在对应的所述缺口空间上；
所述电池包包括电池包密封盖及电池托盘，所述电池包密封盖及电池托盘之间形成容纳电池模组的密闭空间，多个所述电池包的电池包密封盖的顶部边缘分别连接在对应的所 述闭环梁结构的内侧并覆盖对应的所述缺口空间，以形成前地板。
本公开实施例提供的车身结构，电池包安装框架包括多个闭环梁结构，闭环梁结构的内侧形成缺口空间，电池包设置在对应的缺口空间上，多个电池包的电池包密封盖的顶部边缘分别连接在对应的闭环梁结构的内侧并覆盖对应的缺口空间，以形成前地板。这样，相当于在传统的整块的前地板上挖出多个缺口空间，缺口空间处由电池包密封盖覆盖，由多个电池包密封盖组合构成前地板，电池包密封盖为前地板的一部分，相当于将传统的前地板与电池包密封盖合二为一，节省了传统的前地板与电池包密封盖之间10～20mm的Z向空间，相当于电池包整体上抬，增加了车身的离地间隙，改善了车辆的路面通过性，并提升了空间利用率，缓解了总布置压力，降低了前地板总成的重量。此外，由于节省了10～20mm的Z向空间，使得电池包安装框架可配合电池包的上抬而降低设计高度，使电池包安装框架可以设计的重量更轻，进一步减轻前地板总成的重量。另外，电池包安装框架固定连接在左门槛与右门槛之间，电池包安装框架包括多个闭环梁结构，相互独立的多个电池包一一对应地安装在多个闭环梁结构的内侧形成的缺口空间上。当某个电池包发生故障时，其它电池包可以正常工作，进而避免因一个电池包突发故障所导致的车辆无法继续行驶的风险。
另一方面，本公开实施例还提供一种汽车，其包括上述的车身结构。
附图说明
附图是用来提供对本公开的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本公开，但并不构成对本公开的限制。在附图中：
图1是本公开一实施例提供的车身结构的俯视图；
图2是图1中A-A方向的剖视图；
图3是图1中B-B方向的剖视图；
图4是本公开一实施例提供的车身结构的仰视图；
图5是本公开一实施例提供的车身结构的分解图；
图6是本公开一实施例提供的车身结构的前座椅后安装横梁与电池包安装横梁的连接示意图；
图7是图6中C-C方向的剖视图；
图8是本公开一实施例提供的车身结构在发生车侧面碰撞时的碰撞能量传递路径图；
图9是本公开另一实施例提供的车身结构的俯视图；
图10是图9中D-D方向的剖视图；
图11是本公开另一实施例提供的车身结构的仰视图；
图12是本公开另一实施例提供的车身结构的分解图；
图13是本公开另一实施例提供的车身结构在发生车正面碰撞时的碰撞能量传递路径图；
图14是本公开一实施例的汽车的示意图。
具体实施方式
为了使本公开所解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本公开进行进一步的详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本公开，并不用于限定本公开。
在本公开的描述中，需要理解的是，“上”、“下”、“前”、“后”、“左”、“右”、“顶”、“底”等指示的方位或者位置关系是以汽车本身的方位为准的。例如，“上”、“下”方向以及“顶”、“底”方向指汽车的车高方向，即图5中所示的Z方向，“前”、“后”方向指汽车的车长方向，即图5中所示的X方向，“左”、“右”方向指汽车的车宽方向，即图5中所示的Y方向，“内”、“外”方向指沿着汽车向车内、或向车外延伸的方向。
如图1至图8所示，本公开实施例提供的车身结构100，包括电池包安装框架1、左门槛2、右门槛3及多个电池包4，多个所述电池包4相互独立，所述电池包安装框架1固定连接在所述左门槛2与右门槛3之间，所述电池包安装框架1包括多个闭环梁结构，所述闭环梁结构上均设置有缺口空间181，每一所述电池包4设置在对应的所述缺口空间181上。
需要说明的是，在本公开中，“多个”可以理解为两个或者两个以上，例如，“多个电池包4”是指电池包4的数量为两个、三个或者更多个，“多个闭环梁结构”是指电池包安装框架1包括两个、三个或者更多个闭环梁结构。
所述电池包4包括电池包密封盖41及电池托盘(图中未示出)，所述电池包密封盖41及电池托盘之间形成容纳电池模组的密闭空间，多个所述电池包4的电池包密封盖41的顶部边缘分别连接在对应的所述闭环梁结构的内侧并覆盖对应的所述缺口空间181，以形成前地板。
这样，相当于在传统的整块的前地板上挖出多个缺口空间181，缺口空间181处由电池包密封盖41覆盖，由多个电池包密封盖41组合构成前地板，电池包密封盖为前地板的一部分，相当于将传统的前地板与电池包密封盖合二为一，节省了传统的前地板与电池包密封盖之间10～20mm的Z向空间，相当于电池包4整体上抬，增加了车身的离地间隙，改善了车辆的路面通过性，并提升了空间利用率，缓解了总布置压力，可以减少前地板上所需要提供的安装点数量。由于钣金冲压工序的限制，只能采用拆分小支架焊接的形式提供安装点，而本公开通过减少安装点数量可以减少焊接工序，并且降低了前地板总成的重量。此外，由于节省了10～20mm的Z向空间，使得电池包安装框架1可配合电池包4的上抬而 降低设计高度，使电池包安装框架1可以设计的重量更轻，进一步减轻前地板总成的重量。
另外，当某个电池包4发生故障时，其它电池包可以正常工作，进而避免因一个电池包4突发故障所导致的车辆无法继续行驶的风险。
在一实施例中，所述闭环梁结构包括环状的连接板18，所述缺口空间181形成在所述连接板18上，多个所述电池包4的电池包密封盖41的顶部边缘分别连接在对应的所述连接板18的内侧并覆盖对应的所述缺口空间181，以形成前地板。
在一实施例中，如图5所示，所述电池包密封盖41包括顶盖板411及环绕所述顶盖板411的外边缘一圈的侧盖板412，所述侧盖板412的顶侧连接在所述顶盖板411的外边缘下方，所述侧盖板412的底侧连接在所述电池托盘的外边缘上，多个所述电池包4的顶盖板411组合构成前地板，所述电池托盘的外边缘固定连接在所述闭环梁结构上。
顶盖板411既是电池包密封盖41的一部分，多个顶盖板411又组合构成前地板，多个顶盖板411上直接铺设地毯。
在一实施例中，所述电池托盘包括向下凹陷的电池托盘面板以及固定连接在所述电池托盘面板上且向外突出所述电池托盘面板的外边缘的多个安装板，所述电池托盘面板的顶侧边缘向外弯折形成第一翻边，所述侧盖板412的底侧边缘向外弯折形成第二翻边4121(如图5所示)，所述第二翻边4121密封连接在所述第一翻边的上表面。此处的密封连接可以是采用密封垫或胶粘。另外，为保证连接强度，所述第二翻边4121与所述第一翻边还可以通过螺栓紧固。所述安装板通过螺栓连接等方式固定连接在所述闭环梁结构上。以此，将多个电池包4连接在电池包安装框架1上。
在一实施例中，如图4及图5所示，所述电池包安装框架1包括电池包前安装横梁11、电池包后安装横梁12、电池包左安装纵梁13、电池包右安装纵梁14及电池包中部安装梁，所述电池包左安装纵梁13通过焊接等方式固定连接在所述左门槛2的内侧，所述电池包右安装纵梁14通过焊接等方式固定连接在所述右门槛3的内侧。所述电池包前安装横梁11、电池包右安装纵梁14、电池包后安装横梁12及电池包左安装纵梁13顺次相接以形成一矩形框架，所述电池包中部安装梁连接在所述矩形框架的内侧，所述电池包中部安装梁与所述矩形框架之间形成多个所述闭环梁结构。多个所述电池包4一一对应地安装在多个所述闭环梁结构上。一方面，使得电池包4的四周形成连续的安装；另一方面，闭环梁结构本身的强度和刚度较大，使得整个电池包安装框架1具有较大的强度和刚度，增强电池包安装框架1抗变形能力，提高电池包4的安装强度。
在相关技术中，电动汽车的电池包安装方式是在前纵梁后段与后纵梁前段中间设置左右两根电池包安装纵梁，即，左前纵梁后段与左后纵梁前段中间设置电池包左安装纵梁，右前纵梁后段与右后纵梁前段中间设置电池包右安装纵梁。电池包左安装纵梁及电池包右安装纵梁通过焊接的方式固定在前地板面板下方用来给电池包提供安装点。电池包的宽度 被限制在电池包左安装纵梁及电池包右安装纵梁之间，由于电池包左安装纵梁与左门槛以及电池包右安装纵梁与右门槛之间的距离较大，导致电池包的宽度尺寸受限，电池包所能容纳的电池模组较少，电池包的容量较小，进而影响电动汽车的续航能力。
而在本公开中，所述电池包左安装纵梁13直接与所述左门槛2连接，所述电池包右安装纵梁14直接与所述右门槛3连接，电池包左安装纵梁13及电池包右安装纵梁14之间的宽度较大，在相同的车身地板下部空间内，可以放置更多的电池包4，增大多个电池包4的总电池容量，从而提升了电动汽车的续航能力。
在一实施例中，所述电池包左安装纵梁13及电池包右安装纵梁14均为开口梁，所述电池包左安装纵梁13的顶部开口两侧分别形成第一外翻边131及第一内翻边132，所述第一外翻边131通过焊接等方式固定连接在所述左门槛2上，所述第一内翻边132固定连接至少一个所述顶盖板411的左侧，例如，当具有左右并排的两个电池包4时，所述第一内翻边132固定连接在左侧的所述电池包4的顶盖板411的左侧；再例如，当具有前后并排的两个电池包4时，所述第一内翻边132固定连接在前后两个所述电池包4的顶盖板411的左侧。所述电池包右安装纵梁14的顶部开口两侧分别形成第二外翻边141及第二内翻边142，所述第二外翻边141通过焊接等方式固定连接在所述右门槛3上，所述第二内翻边142固定连接在至少一个所述顶盖板411的右侧，例如，当具有左右并排的两个电池包4时，所述第二内翻边142固定连接在右侧的所述电池包4的顶盖板411的右侧；再例如，当具有前后并排的两个电池包4时，所述第二内翻边142固定连接在前后两个所述电池包4的顶盖板411的右侧。这样，在顶盖板411与电池包左安装纵梁13之间形成封闭腔体，该封闭腔体在发生正碰时能够沿前后方向传递碰撞力，以分散左门槛2的受力。同样，在顶盖板411与电池包右安装纵梁14之间形成封闭腔体，该封闭腔体在发生正碰时能够沿前后方向传递碰撞力，以分散右门槛3的受力。
在一实施例中，如图4及图5所示，所述电池包中部安装梁包括电池包中部安装横梁15a，所述电池包中部安装横梁15a位于所述电池包前安装横梁11与电池包后安装横梁12之间，所述电池包中部安装横梁15a的左端固定连接在所述电池包左安装纵梁13上，所述电池包中部安装横梁15a的右端固定连接在所述电池包右安装纵梁14上。所述电池包中部安装横梁15a与所述矩形框架之间形成前后并排的两个所述闭环梁结构，前侧的所述闭环梁结构由所述电池包前安装横梁11、电池包左安装纵梁13、电池包中部安装横梁15a及电池包右安装纵梁14顺次相接构成，后侧的所述闭环梁结构由所述电池包后安装横梁12、电池包左安装纵梁13、电池包中部安装横梁15a及电池包右安装纵梁14顺次相接构成。所述电池包安装框架1的内侧设置有前后并排的两个所述电池包4，前侧的所述电池包4安装在前侧的所述闭环梁结构上，后侧的所述电池包4安装在后侧的所述闭环梁结构上。即，该实施例中，将现有的整体电池包分隔成前后并排的两个电池包4。在其中一个电池 包4出现故障后，另一个电池包4能够正常工作，车辆能够继续行驶。
在一实施例中，如图2、图3及图5所示，所述连接板18环绕所述顶盖板411的外侧一圈固定连接在所述顶盖板411上。对应于电池包安装框架1包括电池包前安装横梁11、电池包后安装横梁12、电池包左安装纵梁13、电池包右安装纵梁14及电池包中部安装横梁15a的实施例，前侧的连接板18的前侧连接在所述电池包前安装横梁11的顶侧，前侧的连接板18的左侧连接在电池包左安装纵梁13的顶侧(第一内翻边132)，前侧的连接板18的后侧连接在电池包中部安装横梁15a的顶侧，前侧的连接板18的右侧连接在电池包右安装纵梁14的顶侧(第二内翻边142)。此时，后侧的连接板18的前侧连接在所述电池包中部安装横梁15a的顶侧，后侧的连接板18的左侧连接在电池包左安装纵梁13的顶侧(第一内翻边132)，后侧的连接板18的后侧连接在电池包后安装横梁12的顶侧，后侧的连接板18的右侧连接在电池包右安装纵梁14的顶侧(第二内翻边142)。
可以理解的是，这里“前侧的连接板18”和“后侧的连接板18”是相对而言的，也就是说，两个连接板18沿车身结构100的前后方向分布，前侧的连接板18指更靠近车身结构100的前端的连接板18，后侧的连接板18指更靠近车身结构100的后端的连接板18，换言之，在车身结构100的前后方向上，前侧的连接板18位于后侧的连接板18的前侧，后侧的连接板18位于前侧的连接板18的后侧。
每个环状的连接板18将每个电池包4的顶盖板411的四边分别连接在对应的闭环梁结构上。此外，环状连接板18还能够填补顶盖板411与闭环梁结构之间的间隙。
对应于连接板18为钣金件的实施例，连接板18的左侧部分、右侧部分、前侧部分及后侧部分为独立的钣金件，并通过拼焊的方式连成环状。相对于通过整块大面积的钣金件中部挖空形成一体的连接板18，能够减少钣金的用量，提高材料利用率。
在其它实施例中，为了提高材料利用率，连接板18也可以是一体成型的塑料板件，此时，塑料板件形式的连接板18与周边件(闭环梁结构及顶盖板411等)的连接采用胶粘加铆接的形式。
在一实施例中，如图1、图3及图5所示，所述车身结构100还包括前座椅前安装横梁5及前座椅后安装横梁6，所述前座椅前安装横梁5通过胶粘等方式固定连接在前地板上。所述前座椅前安装横梁5的左端通过焊接等方式固定连接在所述左门槛2上，所述前座椅前安装横梁5的右端通过焊接等方式固定连接在所述右门槛3上，所述前座椅后安装横梁6的左端通过焊接等方式固定连接在所述左门槛2上，所述前座椅后安装横梁6的右端通过焊接等方式固定连接在所述右门槛3上，所述电池包中部安装横梁15a通过焊接等方式固定连接在所述前座椅后安装横梁6的下方。这样，电池包中部安装横梁15a与前座椅后安装横梁6在整个长度上叠加，前座椅后安装横梁6能够提高电池包中部安装横梁15a的强度和刚度，加强电池包安装框架1的强度和刚度，进一步提升电池包4的安装强度。
在一优选实施例中，如图3、图6及图7所示，所述电池包中部安装横梁15a为闭口梁(具有封闭截面)，所述前座椅后安装横梁6为开口梁，所述电池包中部安装横梁15a与前座椅后安装横梁6在车高方向上对扣连接，即所述电池包中部安装横梁15a的顶部与所述前座椅后安装横梁6的底部固定连接。具体地，所述前座椅后安装横梁6的底部两侧形成焊接翻边，闭口梁形式的所述电池包中部安装横梁15a的顶板两侧向外突出形成连接边，所述前座椅后安装横梁6的焊接翻边与所述电池包中部安装横梁15a的连接边通过点焊连接。如图3所示，所述前座椅后安装横梁6前侧的焊接翻边与所述电池包中部安装横梁15a前侧的连接边通过点焊形成的整体翻边通过螺栓等方式固定连接在前侧的所述电池包4的连接板18的上表面，所述前座椅后安装横梁6后侧的焊接翻边与所述电池包中部安装横梁15a后侧的连接边通过点焊形成的整体翻边通过螺栓等方式固定连接在后侧的连接板18的上表面，并且所述电池包中部安装横梁15a的连接边突出于所述前座椅后安装横梁6的焊接翻边，突出的部分通过地毯直接覆盖。
由于，所述电池包中部安装横梁15a的两端通过分别固定连接在所述电池包左安装纵梁13及电池包右安装纵梁14上，而所述电池包左安装纵梁13及电池包右安装纵梁14又分别与左门槛2及右门槛3固定连接。因而，所述电池包中部安装横梁15a与左门槛2及右门槛3间接连接。此外，在该位置，左右两侧的B柱分别与左门槛2及右门槛3相连。这样，如图8所示，在发生车辆侧面碰撞时(以左侧碰撞为例)，来自侧面碰撞中碰撞能量从左门槛2部位传递至电池包左安装纵梁13，通过电池包前安装横梁11、电池包中部安装横梁15a、电池包后安装横梁12、前座椅前安装横梁5和前座椅后安装横梁6分散传递，保护乘员免受撞击。图8中箭头方向为碰撞能量传递方向。
在一实施例中，如图1及图5所示，所述顶盖板411上开设有用于电池包线束通过的电池包出线口结构413，电池包出线口结构413处形成密封。前侧的所述电池包4的电池包出线口结构413与后侧的所述电池包4的电池包出线口结构413在车长方向上位于同一直线，且前侧的所述电池包4的电池包出线口结构413与后侧的所述电池包4的电池包出线口结构413恰好位于中通道的下方，以便于将电池包线束引入中通道。
在以上实施例中，所述电池包密封盖41为一体成型的复合材料面板。复合材料面板的材料可以是SMC(Sheet Molding Compound，片状塑料模)或增强纤维复合材料板等(例如碳纤维复合材料板、玻璃纤维复合材料板及芳纶纤维复合材料板)。
由于上述实施例中，所述电池包密封盖41为一体成型的复合材料面板，因而，电池包4只需要在所述电池包密封盖41与电池托盘之间形成密封即可，即，通过夹设于电池包密封盖41与电池托盘之间的密封垫圈可对电池包4起到密封作用。
图9至12所示为本公开另一实施例提供的车身结构100。以下实施例中，与图1至图8所示的实施例相同之处将不再描述。
在一实施例中，如图10至图12所示，所述电池包中部安装梁包括电池包中部安装纵梁15b，所述电池包中部安装纵梁15b为闭口梁(具有封闭截面)，闭口梁形式的所述电池包中部安装纵梁15b的顶板两侧向外突出形成连接边。如图10所示，所述电池包中部安装纵梁15b的连接边通过螺栓等方式固定连接在左右两个连接板18的上表面，顶盖板411的顶面与电池包中部安装纵梁15b的顶面基本处于同一水平面，电池包中部安装纵梁15b的顶面直接通过地毯覆盖。所述电池包中部安装纵梁15b位于所述电池包左安装纵梁13与电池包右安装纵梁14之间，所述电池包中部安装纵梁15b的前端固定连接在所述电池包前安装横梁11上，所述电池包中部安装纵梁15b的后端固定连接在所述电池包后安装横梁12上。所述电池包中部安装纵梁15b与所述矩形框架之间形成左右并排的两个所述闭环梁结构。左侧的所述闭环梁结构由所述电池包前安装横梁11、电池包中部安装纵梁15b、电池包后安装横梁12及电池包左安装纵梁13顺次相接构成，右侧的所述闭环梁结构由所述电池包前安装横梁11、电池包中部安装纵梁15b、电池包后安装横梁12及电池包右安装纵梁14顺次相接构成。所述电池包安装框架1的内侧设置有左右并排的两个所述电池包4，左侧的所述电池包4安装在左侧的所述闭环梁结构上，右侧的所述电池包4安装在后侧的所述闭环梁结构上。即，该实施例中，将现有的整体电池包分隔成左右并排的两个电池包4。在其中一个电池包4出现故障后，另一个电池包4能够正常工作，车辆能够继续行驶。
对应于电池包安装框架1包括电池包前安装横梁11、电池包后安装横梁12、电池包左安装纵梁13、电池包右安装纵梁14及电池包中部安装纵梁15b的实施例，左侧的连接板18的前侧连接在所述电池包前安装横梁11的顶侧，左侧的连接板18的左侧连接在电池包左安装纵梁13的顶侧(第一内翻边132)，左侧的连接板18的后侧连接在电池包后安装横梁12的顶侧，左侧的连接板18的右侧连接在电池包中部安装纵梁15b的连接边的下表面。此时，右侧的连接板18的前侧连接在所述电池包前安装横梁11的顶侧，右侧的连接板18的左侧连接在电池包中部安装纵梁15b的连接边的下表面，右侧的所述电池包4的连接板18的后侧连接在电池包后安装横梁12的顶侧，后侧4的连接板18的右侧连接在电池包右安装纵梁14的顶侧(第二内翻边142)。
在一实施例中，如图11所示，所述车身结构100还包括左前纵梁后段71、右前纵梁后段72、前围板下横梁73、前围板下横梁左连接板74、前围板下横梁右连接板75、前纵梁后段左内连接板76、前纵梁后段右内连接板77、前纵梁后段左外连接板78及前纵梁后段右外连接板79。所述前围板下横梁73的左端通过所述前围板下横梁左连接板74与所述左前纵梁后段71连接，所述前围板下横梁73的右端通过所述前围板下横梁右连接板75与所述右前纵梁后段72连接。所述前纵梁后段左内连接板76的前侧边缘(即前纵梁后段左内连接板76的前侧的边缘)与前围板下横梁左连接板74相连，所述前纵梁后段左内连接板76的外侧边缘(即前纵梁后段左内连接板76的远离车身结构100的中部的一侧边缘) 与左前纵梁后段71相连，所述前纵梁后段左内连接板76的后侧边缘(即前纵梁后段左内连接板76的后侧的边缘)与电池包前安装横梁11相连，所述前纵梁后段右内连接板77的前侧边缘与前围板下横梁右连接板75相连，所述前纵梁后段右内连接板77的外侧边缘与右前纵梁后段72相连，所述前纵梁后段右内连接板77的后侧边缘与电池包前安装横梁11相连。所述前纵梁后段左外连接板78的外侧边缘与左前纵梁后段71相连，所述前纵梁后段左外连接板78的后侧边缘与电池包前安装横梁11相连，所述前纵梁后段右外连接板79的外侧边缘与右前纵梁后段72相连，所述前纵梁后段右外连接板79的后侧边缘与电池包前安装横梁11相连。左前纵梁后段71、右前纵梁后段72、前围板下横梁73、前围板下横梁左连接板74、前围板下横梁右连接板75、前纵梁后段左内连接板76、前纵梁后段右内连接板77、前纵梁后段左外连接板78、前纵梁后段右外连接板79及电池包前安装横梁11构成前部框架结构7。前围板下横梁左连接板74及前围板下横梁右连接板75分别连接在左前纵梁后段71及右前纵梁后段72的内弯处，横向支撑左前纵梁后段71及右前纵梁后段72，抵抗变形。前纵梁后段左内连接板76、前纵梁后段右内连接板77、前纵梁后段左外连接板78及前纵梁后段右外连接板79有效增加了左前纵梁后段71及右前纵梁后段72力传递过程中的受力面积，将力分散，有效抑制前围板受到挤压时向车内方向后退的侵入变形，同时防止压缩折弯变形引起的左前纵梁后段71及右前纵梁后段72的后部左右倾斜。并且，还将正面碰撞中左右纵梁的前部受到的力分散部分到侧面。
如图9所示，左侧的所述电池包4的电池包出线口结构413与右侧的所述电池包4的电池包出线口结构413在车宽方向上位于同一直线，且左侧的所述电池包4的电池包出线口结构413与右侧的所述电池包4的电池包出线口结构413在车长方向上位于前座椅前安装横梁5和前座椅后安装横梁6之间。
在一实施例中，如图11所示，所述车身结构100还包括中部安装纵梁前连接板161、中部安装纵梁后连接板162、前安装横梁左连接板163、前安装横梁右连接板164、左安装纵梁前连接板165、左安装纵梁后连接板166、右安装纵梁前连接板167、右安装纵梁后连接板168、后安装横梁左连接板169及后安装横梁右连接板170。所述电池包中部安装纵梁15b的前端通过所述中部安装纵梁前连接板161连接在所述电池包前安装横梁11的中部，所述电池包中部安装纵梁15b的后端通过所述中部安装纵梁后连接板162连接在所述电池包后安装横梁12的中部。所述电池包左安装纵梁13的前端通过所述左安装纵梁前连接板165及前安装横梁左连接板163连接在所述电池包前安装横梁11的左端，所述电池包右安装纵梁14的前端通过所述右安装纵梁前连接板167及前安装横梁右连接板164连接在所述电池包前安装横梁11的右端。所述电池包左安装纵梁13的后端通过所述左安装纵梁后连接板166及后安装横梁左连接板169连接在所述电池包后安装横梁12的左端，所述电池包右安装纵梁14的后端通过所述右安装纵梁后连接板168及后安装横梁右连接板170连接在 所述电池包后安装横梁12的右端。这样，在该实施例中，电池包前安装横梁11、电池包后安装横梁12、电池包左安装纵梁13、电池包右安装纵梁14、电池包中部安装纵梁15b、中部安装纵梁前连接板161、中部安装纵梁后连接板162、前安装横梁左连接板163、前安装横梁右连接板164、左安装纵梁前连接板165、左安装纵梁后连接板166、右安装纵梁前连接板167、右安装纵梁后连接板168、后安装横梁左连接板169及后安装横梁右连接板170共同组成所述电池包安装框架1(后部框架结构)。
上述的前部框架结构7与后部框架结构(电池包安装框架1)通过电池包前安装横梁11连接在一起构成本公开实施例的车身结构100。
如图13所示，在发生车辆正面碰撞时，来自正面碰撞中的碰撞能量由前部框架结构7通过电池包前安装横梁11传递给后部框架结构(电池包安装框架1)，并通过后纵梁8向后传递分散给车身后部。图13中箭头方向为碰撞能量传递方向。
以上实施例中，电池包中部安装梁均为一根梁，电池包安装框架包括两个闭环梁结构，电池包的数量为两个。然而，根据电池包的分包需要，也可以是由多根梁组合构成，进而形成三个以上的闭环梁结构，可用于安装三个以上的电池包。例如，电池包中部安装梁包括十字正交的电池包中部安装纵梁及电池包中部安装横梁，此时，形成了四个闭环梁结构，可以安装四个独立的电池包(前部左右各一个，后部左右各一个)。再例如，电池包中部安装梁包括两根平行的电池包中部安装纵梁，此时，形成了车宽方向并排的三个闭环梁结构，可以安装三个独立的电池包(左中右各一个)。再例如，电池包中部安装梁包括两根平行的电池包中部安装横梁，此时，形成了车长方式并排的三个闭环梁结构，可以安装三个独立的电池包(前中后各一个)。
此外，在未图示的一实施例中，所述车身结构100还包括用于安装副仪表台及换挡机构安装支架的中央通道安装螺柱、用于安装功放模块的功放模块安装螺柱、用于安装电池模块的电池模块安装螺柱、用于安装汽车线束的线束安装螺柱、用于安装空调风道的风道安装螺柱及用于安装空调风道的钣金护板的钣金护板安装螺柱，所述中央通道安装螺柱、功放模块安装螺柱、电池模块安装螺柱、线束安装螺柱、风道安装螺柱及钣金护板安装螺柱一体成型于多个所述顶盖板(前地板)中。即，所述中央通道安装螺柱、功放模块安装螺柱、电池模块安装螺柱、线束安装螺柱、风道安装螺柱及钣金护板安装螺柱与复合材料面板形式的多个所述顶盖板一体成型。
基于由多个顶盖板组合构成的复合材料面板的前地板，由中央通道安装螺柱替换了现有的车身结构100上的中央通道，以此为副仪表台及换挡机构安装支架等提供安装点。由功放模块安装螺柱替换现有的车身结构100上的功放安装支架，以此为功放模块提供安装点。由电池模块安装螺柱替换现有的车身结构100上的电池安装支架为电池模块提供安装点。由线束安装螺柱、风道安装螺柱及钣金护板安装螺柱替换现有的车身结构100上的多 个备焊螺栓支架及端面焊螺栓，以此为线束、空调风道及空调风道的钣金护板等多个总布置模块提供安装点。
该实施例中，所述前地板的上部由前至后划分为前部安装区域、中部安装区域及后部安装区域；所述中央通道安装螺柱设置在所述前部安装区域的中间位置，所述功放模块安装螺柱及所述线束安装螺柱设置在所述中部安装区域的左侧，所述电池模块安装螺柱及所述钣金护板安装螺柱设置在所述中部安装区域的右侧，所述风道安装螺柱设置在所述后部安装区域的中间位置。
这样，通过在由多个顶盖板组合构成的复合材料面板形式的前地板内一体成型述中央通道安装螺柱、功放模块安装螺柱、电池模块安装螺柱、线束安装螺柱、风道安装螺柱及钣金护板安装螺柱，可以替代现有技术中对应位置处的钣金支架，且不需要焊接，减少了焊接工序，减轻了车身重量，提升了车身的轻量化系数。复合材料面板形式的前地板的运用以及各个钣金支架的替代对车身轻量化有着显著的贡献，使得车身结构100可减重22.7％。
在未图示的另一实施例中，所述顶盖板与侧盖板分体设置，所述顶盖板为一体成型的复合材料面板，所述侧盖板为钣金件。此时，所述侧盖板的顶侧边缘向内弯折形成第三翻边，所述第三翻边通过胶粘的方式密封连接在所述顶盖板的下表面。
在未图示的另一实施例中，所述顶盖板与侧盖板分体设置，所述顶盖板为一体成型的钣金件，所述侧盖板为一体成型的另一钣金件。此时，所述侧盖板的顶侧边缘向内弯折形成第三翻边，所述第三翻边通过焊接、铆接或焊接与铆接相结合的方式密封连接在所述顶盖板的下表面。顶盖板，例如，可采用料厚为0.7mm的DC01材料冲压成型。此时，由于冲压工艺的限制，所述顶盖板盖上分别焊装各个钣金支架。
在未图示的另一实施例中，所述顶盖板与侧盖板分体设置，所述顶盖板为一体成型的钣金件，所述侧盖板为一体成型的复合材料板。此时，所述侧盖板的顶侧边缘向内弯折形成第三翻边，所述第三翻边通过胶粘的方式密封连接在所述顶盖板的下表面。顶盖板，例如，可采用料厚为0.7mm的DC01材料冲压成型。此时，由于冲压工艺的限制，所述顶盖板盖上分别焊装各个钣金支架。
在未图示的另一实施例中，所述电池包密封盖为一体成型的钣金件，即，顶盖板及侧盖板一体冲压成型。例如，可采用料厚为0.7mm的DC01材料冲压成型。此时，由于冲压工艺的限制，所述电池包密封盖上分别焊装各个钣金支架。上述实施例的共性是，多个电池包的电池包密封盖的顶盖板部分组合构成前地板(当作前地板使用)，电池包密封盖的顶盖板上方直接铺设地毯。
另外，本公开一实施例还提供了一种汽车200，如图14所示，其包括上述实施例的车身结构100。
本实施例提供的汽车200，当某个电池包4发生故障时，其它电池包4可以正常工作，进而避免因一个电池包4突发故障所导致的车辆无法继续行驶的风险。另外，所述电池包左安装纵梁13直接与所述左门槛2连接，所述电池包右安装纵梁14直接与所述右门槛3连接，电池包左安装纵梁13及电池包右安装纵梁14之间的宽度较大，在相同的车身地板下部空间内，可以放置更多的电池包4，增大多个电池包4的总电池容量，从而提升了电动汽车200的续航能力。
此外，前地板与电池包密封盖合二为一，节省了传统的前地板与电池包密封盖之间10～20mm的Z向空间，相当于电池包整体上抬，增加了车身的离地间隙，改善了车辆的路面通过性，并提升了空间利用率，缓解了总布置压力，降低了车身结构100的重量，实现了整车轻量化。
以上所述仅为本公开的较佳实施例而已，并不用以限制本公开，凡在本公开的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本公开的保护范围之内。

Claims (16)

  1. 一种车身结构(100)，其特征在于，包括电池包安装框架(1)、左门槛(2)、右门槛(3)及多个电池包(4)，所述电池包安装框架(1)固定连接在所述左门槛(2)与右门槛(3)之间，所述电池包安装框架(1)包括多个闭环梁结构，所述闭环梁结构的内侧形成缺口空间(181)，每一所述电池包(4)设置在对应的所述缺口空间(181)上；
    所述电池包(4)包括电池包密封盖(41)及电池托盘，所述电池包密封盖(41)及电池托盘之间形成容纳电池模组的密闭空间，多个所述电池包(4)的电池包密封盖(41)的顶部边缘分别连接在对应的所述闭环梁结构的内侧并覆盖对应的所述缺口空间(181)，以形成前地板。
  2. 根据权利要求1所述的车身结构(100)，其特征在于，所述电池包安装框架(1)包括电池包前安装横梁(11)、电池包后安装横梁(12)、电池包左安装纵梁(13)、电池包右安装纵梁(14)及电池包中部安装梁，所述电池包左安装纵梁(13)固定连接在所述左门槛(2)的内侧，所述电池包右安装纵梁(14)固定连接在所述右门槛(3)的内侧；
    所述电池包前安装横梁(11)、电池包右安装纵梁(14)、电池包后安装横梁(12)及电池包左安装纵梁(13)顺次相接以形成一矩形框架，所述电池包中部安装梁连接在所述矩形框架的内侧，所述电池包中部安装梁与所述矩形框架之间形成多个所述闭环梁结构。
  3. 根据权利要求2所述的车身结构(100)，其特征在于，所述电池包中部安装梁包括电池包中部安装纵梁(15b)，所述电池包中部安装纵梁(15b)位于所述电池包左安装纵梁(13)与电池包右安装纵梁(14)之间，所述电池包中部安装纵梁(15b)的前端固定连接在所述电池包前安装横梁(11)上，所述电池包中部安装纵梁(15b)的后端固定连接在所述电池包后安装横梁(12)上；
    所述电池包中部安装纵梁(15b)与所述矩形框架之间形成左右并排的两个所述闭环梁结构，左侧的所述闭环梁结构由所述电池包前安装横梁(11)、电池包中部安装纵梁(15b)、电池包后安装横梁(12)及电池包左安装纵梁(13)顺次相接构成，右侧的所述闭环梁结构由所述电池包前安装横梁(11)、电池包中部安装纵梁(15b)、电池包后安装横梁(12)及电池包右安装纵梁(14)顺次相接构成；
    所述电池包安装框架(1)的内侧设置有左右并排的两个所述电池包(4)，左侧的所述电池包(4)安装在左侧的所述闭环梁结构上，右侧的所述电池包(4)安装在右侧的所述闭环梁结构上。
  4. 根据权利要求3所述的车身结构(100)，其特征在于，所述车身结构(100)还包括左前纵梁后段(71)、右前纵梁后段(72)、前围板下横梁(73)、前围板下横梁左连接板(74)、前围板下横梁右连接板(75)、前纵梁后段左内连接板(76)、前纵梁后段右内连接 板(77)、前纵梁后段左外连接板(78)及前纵梁后段右外连接板(79)；
    所述前围板下横梁(73)的左端通过所述前围板下横梁左连接板(74)与所述左前纵梁后段(71)连接，所述前围板下横梁(73)的右端通过所述前围板下横梁右连接板(75)与所述右前纵梁后段(72)连接；
    所述前纵梁后段左内连接板(76)的前侧边缘与前围板下横梁左连接板(74)相连，所述前纵梁后段左内连接板(76)的外侧边缘与左前纵梁后段(71)相连，所述前纵梁后段左内连接板(76)的后侧边缘与电池包前安装横梁(11)相连，所述前纵梁后段右内连接板(77)的前侧边缘与前围板下横梁右连接板(75)相连，所述前纵梁后段右内连接板(77)的外侧边缘与右前纵梁后段(72)相连，所述前纵梁后段右内连接板(77)的后侧边缘与电池包前安装横梁(11)相连；
    所述前纵梁后段左外连接板(78)的外侧边缘与左前纵梁后段(71)相连，所述前纵梁后段左外连接板(78)的后侧边缘与电池包前安装横梁(11)相连，所述前纵梁后段右外连接板(79)的外侧边缘与右前纵梁后段(72)相连，所述前纵梁后段右外连接板(79)的后侧边缘与电池包前安装横梁(11)相连。
  5. 根据权利要求3或4所述的车身结构(100)，其特征在于，所述车身结构(100)还包括中部安装纵梁前连接板(161)、中部安装纵梁后连接板(162)、前安装横梁左连接板(163)、前安装横梁右连接板(164)、左安装纵梁前连接板(165)、左安装纵梁后连接板(166)、右安装纵梁前连接板(167)、右安装纵梁后连接板(168)、后安装横梁左连接板(169)及后安装横梁右连接板(170)；
    所述电池包中部安装纵梁(15b)的前端通过所述中部安装纵梁前连接板(161)连接在所述电池包前安装横梁(11)的中部，所述电池包中部安装纵梁(15b)的后端通过所述中部安装纵梁后连接板(162)连接在所述电池包后安装横梁(12)的中部；
    所述电池包左安装纵梁(13)的前端通过所述左安装纵梁前连接板(165)及前安装横梁左连接板(163)连接在所述电池包前安装横梁(11)的左端，所述电池包右安装纵梁(14)的前端通过所述右安装纵梁前连接板(167)及前安装横梁右连接板(164)连接在所述电池包前安装横梁(11)的右端；
    所述电池包左安装纵梁(13)的后端通过所述左安装纵梁后连接板(166)及后安装横梁左连接板(169)连接在所述电池包后安装横梁(12)的左端，所述电池包右安装纵梁(14)的后端通过所述右安装纵梁后连接板(168)及后安装横梁右连接板(170)连接在所述电池包后安装横梁(12)的右端。
  6. 根据权利要求2所述的车身结构(100)，其特征在于，所述电池包中部安装梁包括电池包中部安装横梁(15a)，所述电池包中部安装横梁(15a)位于所述电池包前安装横梁(11)与电池包后安装横梁(12)之间，所述电池包中部安装横梁(15a)的左端固定连接 在所述电池包左安装纵梁(13)上，所述电池包中部安装横梁(15a)的右端固定连接在所述电池包右安装纵梁(14)上；
    所述电池包中部安装横梁(15a)与所述矩形框架之间形成前后并排的两个所述闭环梁结构，前侧的所述闭环梁结构由所述电池包前安装横梁(11)、电池包左安装纵梁(13)、电池包中部安装横梁(15a)及电池包右安装纵梁(14)顺次相接构成，后侧的所述闭环梁结构由所述电池包后安装横梁(12)、电池包左安装纵梁(13)、电池包中部安装横梁(15a)及电池包右安装纵梁(14)顺次相接构成；
    所述电池包安装框架(1)的内侧设置有前后并排的两个所述电池包，前侧的所述电池包安装在前侧的所述闭环梁结构上，后侧的所述电池包安装在后侧的所述闭环梁结构上。
  7. 根据权利要求6所述的车身结构(100)，其特征在于，所述车身结构(100)还包括前座椅前安装横梁(5)及前座椅后安装横梁(6)，所述前座椅前安装横梁(5)的左端固定连接在所述左门槛(2)上，所述前座椅前安装横梁(5)的右端固定连接在所述右门槛(3)上，所述前座椅后安装横梁(6)的左端固定连接在所述左门槛(2)上，所述前座椅后安装横梁(6)的右端固定连接在所述右门槛(3)上；
    所述电池包中部安装横梁(15a)连接在所述前座椅后安装横梁(6)的下方。
  8. 根据权利要求7所述的车身结构(100)，其特征在于，所述电池包中部安装横梁(15a)为闭口梁，所述前座椅后安装横梁(6)为开口梁，所述电池包中部安装横梁(15a)的顶部与所述前座椅后安装横梁(6)的底部固定连接。
  9. 根据权利要求2-8任意一项所述的车身结构(100)，其特征在于，所述闭环梁结构包括环状的连接板(18)，所述缺口空间(181)形成在所述连接板(18)的内侧，多个所述电池包的电池包密封盖(41)的顶部边缘分别连接在对应的所述连接板(18)的内侧并覆盖对应的所述缺口空间(181)，以形成前地板。
  10. 根据权利要求9所述的车身结构(100)，其特征在于，所述电池包密封盖(41)包括顶盖板(411)及环绕所述顶盖板(411)的外边缘一圈的侧盖板(412)，所述侧盖板(412)的顶侧连接在所述顶盖板(411)的外边缘下方，所述侧盖板(412)的底侧连接在所述电池托盘的外边缘上，多个所述连接板(18)与多个所述电池包的电池包密封盖(41)的顶盖板(411)组合构成前地板。
  11. 根据权利要求10所述的车身结构(100)，其特征在于，所述电池托盘包括向下凹陷的电池托盘面板以及固定连接在所述电池托盘面板上且向外突出所述电池托盘面板的外边缘的多个安装板，所述电池托盘面板的顶侧边缘向外弯折形成第一翻边，所述侧盖板(412)的底侧边缘向外弯折形成第二翻边(4121)，所述第二翻边(4121)密封连接在所述第一翻边的上表面，所述安装板固定连接在所述闭环梁结构上。
  12. 根据权利要求11所述的车身结构(100)，其特征在于，所述电池包左安装纵梁(13) 的顶部开口两侧分别形成第一外翻边(131)及第一内翻边(132)，所述第一外翻边(131)固定连接在所述左门槛(2)上，所述第一内翻边(132)固定连接至少一个所述顶盖板(411)；
    所述电池包右安装纵梁(14)的顶部开口两侧分别形成第二外翻边(141)及第二内翻边(142)，所述第二外翻边(141)固定连接在所述右门槛(3)上，所述第二内翻边(142)至少一个所述顶盖板(411)。
  13. 根据权利要求10-12任意一项所述的车身结构(100)，其特征在于，所述顶盖板(411)上开设有用于电池包线束通过的电池包出线口结构(413)。
  14. 根据权利要求10-13任意一项所述的车身结构(100)，其特征在于，所述电池包密封盖(41)为一体成型的钣金件或复合材料面板。
  15. 根据权利要求10-14任意一项所述的车身结构(100)，其特征在于，所述顶盖板(411)与侧盖板(412)分体设置，所述顶盖板(411)为一体成型的钣金件或复合材料面板，所述侧盖板(412)为一体成型的钣金件或复合材料面板。
  16. 一种汽车(200)，其特征在于，包括权利要求1-15任意一项所述的车身结构(100)。
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CN116315361B (zh) * 2023-05-25 2023-10-03 山东旭尊电子科技有限公司 一种高安全性电池电芯结构

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