WO2019185024A1 - 车身结构及汽车 - Google Patents

车身结构及汽车 Download PDF

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Publication number
WO2019185024A1
WO2019185024A1 PCT/CN2019/080433 CN2019080433W WO2019185024A1 WO 2019185024 A1 WO2019185024 A1 WO 2019185024A1 CN 2019080433 W CN2019080433 W CN 2019080433W WO 2019185024 A1 WO2019185024 A1 WO 2019185024A1
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WO
WIPO (PCT)
Prior art keywords
battery pack
battery
sill
mounting
battery tray
Prior art date
Application number
PCT/CN2019/080433
Other languages
English (en)
French (fr)
Inventor
刘腾涌
杨宇鸿
翟欢
赵洋
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 WO2019185024A1 publication Critical patent/WO2019185024A1/zh

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Classifications

    • 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 technical field of body frames, and in particular 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 the structure is sacrificed.
  • the Z-direction (vehicle height) 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 side of the battery pack and the battery.
  • the width of the battery pack is limited to the left side of the battery pack and the battery.
  • the battery pack can accommodate fewer battery modules, and the battery pack has a smaller capacity, thereby affecting the battery life of the electric vehicle.
  • the technical problem to be solved by the present disclosure is that for the existing electric vehicle, the width of the battery pack is limited between the left sill and the right sill, resulting in a problem that the battery pack has a small battery capacity, and provides a vehicle body structure and an automobile.
  • an embodiment of the present disclosure provides a vehicle body structure including a battery pack mounting frame and a battery pack fixedly connected to the battery pack mounting frame, the battery pack mounting frame including a left threshold and a right
  • 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 battery pack sealing cover is connected to the left sill and the right sill To form the front floor.
  • an embodiment of the present disclosure also provides an automobile including the above-described vehicle body structure.
  • the installation space of the battery pack between the left mounting rail of the existing battery pack and the right side of the battery pack is directly widened to the battery pack installation space between the left sill and the right sill, and the installation space is increased.
  • the size of the battery pack installation space along the width of the vehicle can greatly increase the size of the battery pack while maintaining the height of the battery pack.
  • the larger battery pack can be installed with more battery modules, and the battery pack can be upgraded.
  • the battery power increases the car's battery life.
  • the battery pack sealing cover is connected with the left door sill and the right sill to form the front floor, and the front floor and the battery pack sealing cover are combined into one, which saves the Z-space of 10-20 mm between the traditional front floor and the battery pack sealing cover. It is equivalent to the overall lifting of the battery pack, which increases the ground clearance of the vehicle body, improves the road passability of the vehicle, improves the space utilization rate, alleviates the total arrangement pressure, reduces the weight of the vehicle body structure, and realizes the light weight of the vehicle body. Quantify.
  • FIG. 1 is a bottom view of a vehicle body structure (battery pack separation) according to an embodiment of the present disclosure
  • FIG. 2 is a perspective view of a vehicle body structure according to an embodiment of the present disclosure
  • FIG. 3 is an exploded view of a vehicle body structure according to an embodiment of the present disclosure.
  • FIG. 4 is a partial cross-sectional view showing a connection between a battery pack and a left sill of a vehicle body structure according to an embodiment of the present disclosure
  • FIG. 5 is a bottom view of a vehicle body structure (battery pack separation) according to another embodiment of the present disclosure.
  • FIG. 6 is an exploded view of a vehicle body structure according to another embodiment of the present disclosure.
  • FIG. 7 is a bottom view of a vehicle body structure (battery pack separation) according to another embodiment of the present disclosure.
  • FIG. 8 is a schematic view of a car according to an embodiment of the present disclosure.
  • the orientation or position of the indications of "upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, etc. The relationship is based on the position of the car itself.
  • 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. 3, and the “front” and “rear” directions refer to the vehicle length direction of the automobile.
  • 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. 3
  • the “front” and “rear” directions refer to the vehicle length direction of the automobile.
  • the “left” and “right” directions refer to the vehicle width direction of the automobile, that is, the Y direction shown in FIG. 3
  • the “inside” and “outside” directions refer to the vehicle along the vehicle. Inside, or in the direction of extending outside the car.
  • a vehicle body structure 100 includes a battery pack mounting frame 1 and a battery pack 2 , and the battery pack mounting frame 1 includes a front cross member 11 , a rear cross member 12 , and a left sill 13 .
  • the right threshold is 14.
  • the installation space of the battery pack 2 is defined between the left sill 13 and the right sill 14.
  • the battery pack 2 is fixedly attached to the battery pack mounting frame 1 and located in the installation space.
  • the battery pack 2 includes a battery pack sealing cover 21 and a battery tray 22, and the battery pack sealing cover 21 is connected to an upper opening of the battery tray 22, and the battery pack sealing cover 21 and the battery tray 22 are formed to receive therebetween.
  • the battery pack sealing cover 21 and the battery tray 22 are fixedly connected to the battery pack mounting frame 1 in a sealed space of the battery module.
  • the battery pack sealing cover 21 is connected to the left sill 13 and the right sill 14 to constitute a front floor.
  • 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 car floor panel of this structure is generally designed to be uneven.
  • the battery pack is arranged in this frame.
  • the interior of the battery pack is generally designed to have a hollow structure, and a beam and a stringer are added as reinforcement parts on the outside of the battery pack.
  • the battery pack structure of the design, the body frame is generally a complex rugged structure, and the shape of the battery pack is also a structure in which the beam and the stringer are staggered. Due to the large distance between the left side of the battery pack and the left sill and the right side of the battery pack and the right sill, the width of the battery pack is limited. When the height of the battery pack is constant, the battery pack can It has fewer battery modules and a smaller battery pack, which affects the battery life.
  • the vehicle body structure 100 provided by the embodiment of the present disclosure cancels the left side of the battery pack and the right side of the battery pack (the body structure 100 does not have a battery pack left mounting stringer and the battery pack right side of the stringer), the left threshold 13 and
  • the installation space of the battery pack 2 is defined between the right sills 14.
  • the battery pack 2 is fixedly connected to the battery pack mounting frame 1 including the left sill 13 and the right sill 14 and is located in the installation space. That is, the battery pack installation space between the left side of the battery pack and the right side of the battery pack is directly widened to the battery pack installation space between the left door sill 13 and the right sill 14 to increase the battery pack installation.
  • the size of the space along the width of the vehicle can greatly increase the volume of the battery pack 2 while maintaining the height of the battery pack.
  • the larger battery pack 2 can be installed with more battery modules, and the battery pack 2 can be upgraded.
  • the battery power increases the car's battery life.
  • the battery pack sealing cover 21 is connected to the left sill 13 and the right sill 14 to constitute a front floor, and the battery pack sealing cover 21 can be directly laid with a carpet.
  • the traditional 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 improves the road passing property of the vehicle, improves the space utilization rate, alleviates the total arrangement pressure, reduces the weight of the vehicle body structure 100, and realizes the weight reduction of the entire vehicle.
  • the battery pack 2 is one, and the battery pack sealing cover 221 of one of the battery packs 2 constitutes a front floor.
  • the left sill 13 includes a left sill body 131 having a closed cross section and a left sill reinforcing plate 132 disposed in a closed section of the left sill body 131, and an inner side surface of the left sill body 131 is disposed.
  • the right sill 14 has a structure similar to the left sill 13, that is, the right sill 14 includes a right sill body having a closed cross section and a right sill reinforcement plate disposed in a closed section of the right sill body, The inner side surface of the right sill body is provided with a second horizontal connecting plate extending horizontally inward.
  • the battery pack 2 is directly and fixedly connected to the left sill 13 and the right sill 14, and the strength and torsion resistance of the left sill 13 and the right sill 14 are enhanced, so that the amount of deformation of the left sill 13 and the right sill 14 is small when the side is touched.
  • the left sill 13 and the right sill 14 can also enhance the battery pack 2.
  • first horizontal connecting plate 1311 is located at a bottom side of the left sill reinforcing plate 132, and the left sill reinforcing plate 132 can further strengthen the connection position of the first horizontal connecting plate 1311 and the battery pack 2. Strength and stiffness. The risk of breakage at the connection position of the first horizontal connecting plate 1311 and the battery pack 2 during the collision is reduced.
  • the second horizontal connecting plate is located at a bottom side of the right sill reinforcing plate, and the right sill reinforcing plate can further strengthen the strength at the connection position of the second horizontal connecting plate and the battery pack 2 Stiffness. The risk of breakage at the connection position of the second horizontal connecting plate and the battery pack 2 during the collision is reduced.
  • the front cross member 11, the left sill 13, the rear cross member 12, and the right sill 14 are sequentially joined to form a rectangular frame, and the battery pack 2 is mounted on the rectangular frame to form a battery mold.
  • the installation space for the group is shown in FIGS. 1 to 3, the front cross member 11, the left sill 13, the rear cross member 12, and the right sill 14.
  • the battery pack sealing cover 21 is provided with a wire outlet opening structure 211 of the battery pack.
  • the battery tray 22 includes a bottom panel 221 and a rectangular frame that is fixedly connected to the bottom panel 221 around the edge of the bottom panel 221 .
  • the frame is connected to the chassis.
  • the battery pack is mounted on the frame 1.
  • the battery pack 2 can be mounted on the battery pack mounting frame 1 by a bezel, and on the other hand, the bezel enhances the strength and rigidity of the battery pack 2 to avoid excessive deformation of the battery pack 2 in the event of an impact. Squeeze of the battery module in the battery pack 2.
  • the frame includes a battery tray front side cross member 222, a battery tray rear side cross member 223, a battery tray left side rail 224, and a battery tray right side rail 225, the battery tray front side cross member 222, and a battery.
  • the tray right side rail 225, the battery tray rear side cross member 223, and the battery tray left side rail 224 are sequentially joined to constitute the bezel.
  • the battery tray left side rail 224 includes a battery tray left side rail body 2241, a first vertical extending portion 2242 extending upward from a top inner side of the battery tray left side rail body 2241, and a first horizontal extension 2243 extending to the right from the inner side of the bottom of the left side rail body 2241 of the battery tray, and the right side of the first horizontal extension 2243 is overlapped on the upper surface of the bottom panel 221 by welding or the like.
  • the upper end of the first vertical extending portion 2242 is fixedly connected to the left sill 13
  • the left side of the battery pack sealing cover 21 is fixedly connected to the left sill 13 .
  • the left side of the battery pack sealing cover 21 is fixedly coupled to the lower surface of the first horizontal connecting plate 1311 by a combination of gluing and bolting, and the upper end of the first vertical extending portion 2242 passes An adhesive fixing is attached to a lower surface of the first horizontal connecting plate 1311 of the left sill body 131 and outside the battery pack sealing cover 21.
  • the battery pack sealing cover 21 is provided with a nut (for example, a rivet nut) at a bolt connection position with the first horizontal connecting plate 1311.
  • the battery tray left side rail body 2241 is connected to the lower surface of the left sill body 131, and the battery tray left side sill body 2241 and the left sill body 131 are fixedly connected by bolts or the like.
  • the battery tray 22 and the left sill 13 form two connections at the top and the bottom, and the battery pack sealing cover 21 forms a connection with the left sill 13, that is, the battery pack 2 is respectively connected to the left sill 13 at three positions, so that the battery pack The left side of 2 has a large connection strength.
  • the use of one connecting plate can be reduced, the number of parts can be reduced, and the weight can be reduced.
  • the force of the left sill 13 can be uniformly transmitted to the battery tray 22 when the side is touched, and the excessive deformation of the battery pack 2 caused by the excessive pressing of the battery tray 22 is avoided, which is advantageous for ensuring the safety of the battery pack 2.
  • the battery tray right side rail 225 has a structure similar to the battery tray left side rail 224, that is, the battery tray right side rail 225 includes a battery tray right side rail body (not shown) a second vertical extension (not shown) extending upward from a top inner side of the right side rail body of the battery tray and a second extending leftward from a bottom inner side of the right side rail body of the battery tray a horizontal extension (not shown), the left side of the second horizontal extension is overlapped on the right side of the upper surface of the bottom panel 221 by welding or the like, and the upper end of the second vertical extension is
  • the right sill 14 is fixedly connected, and the right side of the battery pack sealing cover 21 is fixedly connected to the right sill 14 .
  • the right side of the battery pack sealing cover 21 is fixedly coupled to the lower surface of the second horizontal connecting plate by a combination of gluing and bolting, and the upper end of the second vertical extending portion is glued
  • the second horizontal connection plate of the right sill body is fixedly coupled to the outside of the battery pack sealing cover 21.
  • the battery pack sealing cover 21 is provided with a nut (for example, a rivet nut) at a bolt connection position with the second horizontal connecting plate.
  • the right side rail body of the battery tray is connected to the lower surface of the right sill body, and the right side rail body of the battery tray and the right sill body are fixedly connected by bolts or the like.
  • the battery tray 22 and the right sill 14 form two connections at the top and the bottom, and the battery pack sealing cover 21 forms a connection with the right sill 14, that is, the battery pack 2 is respectively connected to the right sill 14 at three positions, so that the battery pack The right side of 2 has a large connection strength.
  • the use of one connecting plate can be reduced, the number of parts can be reduced, and the weight can be reduced.
  • the force of the right sill 14 can be uniformly transmitted to the battery tray 22 when the side is touched, and the excessive deformation of the battery pack 2 caused by the excessive squeezing of the battery tray 22 is avoided, which is advantageous for ensuring the safety of the battery pack 2.
  • the left side of the battery pack sealing cover 21 is fixedly coupled to the lower surface of the first horizontal connecting plate 1311 by a combination of gluing and bolting, and the upper end of the first vertical extending portion 2242 passes through the glue.
  • a fixed connection is attached to a lower surface of the first horizontal connecting plate 1311 of the left sill body 131
  • a right side of the battery pack sealing cover 21 is fixedly connected to the second horizontal connection by a combination of gluing and bolting
  • the lower surface of the second vertical extension is attached to the lower surface of the second horizontal connection plate of the right sill body by gluing.
  • the battery tray 22 further includes a battery tray panel left reinforcing plate 226, a battery tray panel right reinforcing plate (not shown), a battery tray left side rail lower cover 227, and a battery.
  • the right side rail lower cover 228 of the tray The battery tray panel left reinforcing plate 226 is fixedly connected to the left edge of the lower surface of the bottom panel 221 by welding or the like, and the inner side of the left side rail lower cover 227 of the battery tray is fixedly connected to the battery.
  • the tray panel is disposed between the left reinforcing plate 226 and the bottom panel 221, and the outer side of the left side rail lower cover 227 of the battery tray is fixedly connected to the frame.
  • the battery tray left side rail lower cover The outer side of the 227 is fixedly coupled to the outer side surface of the left side rail body 2241 of the battery tray.
  • the battery tray panel right reinforcing plate is fixedly connected to the right edge of the lower surface of the bottom panel 221 by welding or the like, and the inner side of the right side rail lower cover 228 of the battery tray is fixedly connected to the battery tray.
  • the outer side of the right side rail lower cover 228 of the battery tray is fixedly connected to the frame, specifically, the outer side of the right side beam lower cover 228 of the battery tray
  • the outer surface of the right side rail body of the right side of the battery tray is fixedly connected.
  • the battery tray panel right reinforcing plate on the one hand, reinforces the strength of the right side edge of the bottom panel 221, and on the other hand, provides the inner mounting position of the right side rail lower cover 228 of the battery tray.
  • the left side rail lower cover 227 of the battery tray plays a certain role in decorating the left side rail 224 of the battery tray on which the bolt is mounted (ie, the bolt on the left side rail 224 of the battery tray is blocked), and also the entire battery pack. 2 strengthens.
  • the right side rail lower cover 228 of the battery tray plays a certain ugly decorative effect on the right side rail 225 of the battery tray on which the bolt is mounted (ie, the bolt on the right side rail 225 of the battery tray is blocked), and also the whole
  • the battery pack 2 acts as a reinforcement.
  • the outer side of the left side rail lower cover 227 of the battery tray is fixedly attached to the outer side surface of the left side rail body 2241 of the battery tray, and the battery tray left side rail lower cover 227.
  • the inner side is inserted on the battery tray panel left reinforcing plate 226.
  • the outer side of the right side rail lower cover 228 of the battery tray is fixedly attached to the outer side surface of the right side rail body of the battery tray, and the inner side of the right side rail lower cover 228 of the battery tray is inserted in the The battery tray panel is on the right reinforcing plate.
  • the left side rail lower cover 227 of the battery tray may be a metal plate member or a plastic plate member. If the left side rail lower cover 227 of the battery tray is a metal plate, the outer side of the left side rail lower cover 227 of the battery tray and the outer side surface of the left side rail main body 2241 of the battery tray are fixedly connected by a tapping screw. If the left side rail lower cover 227 of the battery tray is a plastic plate, the outer side of the left side rail lower cover 227 of the battery tray is snap-connected to the outer side surface of the left side rail body 2241 of the battery tray.
  • the right side rail lower cover 228 of the battery tray can be a metal plate or a plastic plate. If the right side rail lower cover 228 of the battery tray is a metal plate, the outer side of the right side rail lower cover 228 of the battery tray and the outer side surface of the right side rail body of the battery tray are fixedly connected by a self-tapping screw. If the right side rail lower cover 228 of the battery tray is a plastic plate, the outer side of the right side rail lower cover 228 of the battery tray and the outer side surface of the right side rail body of the battery tray are snap-fitted.
  • the battery tray 22 further includes a tray panel reinforcing beam structure 229, a bottom of the reinforcing beam structure 229 is attached to an upper surface of the bottom panel 221, and the reinforcing beam structure 229 includes a plurality of reinforcing beams.
  • each reinforcing beam 2291 is divided into two small sections by the reinforcing longitudinal beam. beam.
  • a plurality of reinforcing beams 2291 are arranged in parallel at equal intervals, and the reinforcing stringers 2292 are vertically connected at a midpoint position of the plurality of reinforcing beams 2291 (ie, the lengths of the two small beams of each reinforcing beam 2291 are the same) to discharge the battery.
  • the tray 22 is divided into a plurality of identical battery module mounting spaces to facilitate placement of more battery modules.
  • the reinforcing beam structure may also comprise a reinforcing beam and a plurality of reinforcing stringers.
  • the reinforcing beam may be divided into a plurality of small beams by the reinforcing longitudinal beam; or each reinforcing stringer may be divided into two small longitudinal beams by the reinforcing beam.
  • the reinforcing beam structure may also include a plurality of reinforcing beams and a plurality of reinforcing stringers. At this time, each of the reinforcing beams is divided into a plurality of small beams by the reinforcing longitudinal beams, or each of the reinforcing longitudinal beams is divided into a plurality of small longitudinal beams by the reinforcing beams.
  • the vehicle body structure 100 further includes a front seat front mounting beam 3, a front seat rear mounting beam 4, and a rear seat mounting beam 5, which are arranged in order from front to back.
  • the left end of the front seat mounting beam 3 is fixedly connected to the left sill 13 by welding or the like, and the right end of the front seat front mounting beam 3 is fixedly connected to the right sill 14 by welding or the like.
  • the left end of the rear seat mounting beam 4 is fixedly connected to the left sill 13 by welding or the like, and the right end of the front seat rear mounting beam 4 is fixedly connected to the right sill 14 by welding or the like.
  • the left end of the seat mounting cross member 5 is fixedly coupled to the left sill 13 by welding or the like, and the right end of the rear seat mounting cross member 5 is fixedly coupled to the right sill 14 by welding or the like.
  • the battery pack sealing cover 21 is fixedly coupled to the front seat front mounting cross member 3, the front seat rear mounting cross member 4, and the rear seat mounting cross member 5 by gluing or the like.
  • the battery pack sealing cover 21 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).
  • SMC Sheet Molding Compound
  • reinforced fiber composite sheet for example, a carbon fiber composite sheet, a glass fiber composite sheet, and an aramid fiber composite sheet.
  • the composite panel can reduce the weight of the battery pack sealing cover 21 while meeting the strength requirements.
  • FIG. 5 and FIG. 6 show a vehicle body structure 100 according to another embodiment of the present disclosure. In this embodiment, the same points as the embodiment shown in FIG. 1 to FIG. 4 will not be described.
  • the battery pack mounting frame 1 includes a front cross member 11, a rear cross member 12, a left sill 13, a right sill 14 and a battery pack middle mounting beam, the front cross member 11, the left sill 13, and the rear.
  • the beam 12 and the right sill 14 are sequentially joined to form a rectangular frame, and the battery pack middle mounting beam is disposed inside the rectangular frame to partition the battery pack mounting frame 1 into a plurality of sub-mounting frames.
  • the vehicle body structure 100 includes a plurality of battery packs 2 independent of each other, and a plurality of the battery packs 2 are mounted one by one on a plurality of the sub-mounting frames.
  • a plurality of battery pack sealing covers 21 of the battery pack 2 are combined to constitute a front floor.
  • the battery pack sealing cover 21 of the plurality of battery packs 2 is integrated with the front floor, omitting the front floor in the prior art, and reducing the weight of the vehicle body structure 100.
  • a plurality of may be understood as two or more.
  • a plurality of battery packs 2 means that the number of battery packs 2 is two, three or more.
  • Multiple sub-mounting frames means that the battery pack mounting frame 1 is divided into two, three or more sub-mounting frames.
  • the battery pack middle mounting beam includes a battery pack middle mounting cross member 15a, and the battery pack middle mounting cross member 15a is located between the front cross member 11 and the rear cross member 12 in the vehicle length direction.
  • the left end of the battery pack middle mounting cross member 15a is fixedly connected to the left sill 13
  • the right end of the battery pack middle mounting cross member 15a is fixedly connected to the right sill 14 .
  • the battery pack middle mounting cross member 15a and the rectangular frame form two sub-mounting frames side by side, and the sub-mounting frame on the front side is installed by the front cross member 11, the left sill 13, and the middle of the battery pack.
  • the cross member 15a and the right sill 14 are sequentially connected to each other, and the sub-mounting frame on the rear side is formed by sequentially contacting the rear cross member 12, the left sill 13, the battery pack middle connecting beam 15a, and the right sill 14.
  • the battery pack mounting frame 1 is fixedly connected to two battery packs 2 arranged side by side, the battery pack 2 on the front side is mounted on the sub-mounting frame on the front side, and the battery pack 2 on the rear side is mounted.
  • the existing integral battery pack is divided into two battery packs 2 which are arranged side by side. After one of the battery packs 2 fails, the other battery pack 2 can operate normally and the vehicle can continue to travel.
  • two battery packs 2 are used before and after one of the faults, only the faulty battery pack 2 needs to be inspected and repaired.
  • the battery pack middle mounting beam 15a is a closed beam, and the top plate 151a of the battery pack middle mounting beam 15a is fixedly connected to the front seat front mounting beam 3 And the front seat is mounted below the cross member 4, so that the strength of the middle portion of the battery pack mounting cross member 15a is improved by the front seat front mounting beam 3 and the front seat rear mounting beam 4.
  • a portion of the top plate 151a between the front seat front mounting beam 3 and the front seat rear mounting beam 4 is exposed and covered by a carpet.
  • the front side of the battery pack 2 on the rear side and the rear side of the battery pack 2 on the front side is fixedly attached to the battery pack middle mounting cross member 15a, and the battery on the rear side is
  • the bag 2 is also connected to the rear seat mounting cross member 5 by gluing or the like.
  • the battery pack sealing cover 21 of the battery pack 2 on the front side and the battery pack sealing cover 21 of the battery pack 2 on the rear side are combined to constitute a front floor.
  • connection strength of the battery pack 2 at the rear portion is enhanced by the connection of the battery pack 2 on the rear side to the rear seat mounting cross member 5.
  • FIG. 7 illustrates a vehicle body structure 100 provided by another embodiment of the present disclosure.
  • the same points as those of the embodiment shown in Figs. 5 and 6 will not be described.
  • the battery pack middle mounting beam includes a battery pack middle mounting stringer 15b, and the battery pack middle mounting rail 15b is located between the left sill 13 and the right sill 14, the middle of the battery pack
  • the front end of the mounting stringer 15b is fixedly coupled to the front cross member 11, and the rear end of the battery pack middle mounting stringer 15b is fixedly coupled to the rear cross member 12.
  • the battery pack middle mounting rail 15b and the rectangular frame form two sub-mounting frames side by side.
  • the sub-mounting frame on the left side is composed of the front cross member 11, the battery pack middle mounting longitudinal beam 15b, the rear cross member 12 and the left sill 13 in sequence
  • the sub-mounting frame on the right side is composed of the front cross member 11
  • the middle portion of the battery pack mounting rail 15b, the rear cross member 12 and the right door sill 14 are connected in series.
  • the battery pack mounting frame 1 is fixedly connected with two battery packs 2 arranged side by side, and the battery pack 2 on the left side is mounted on the sub-mounting frame on the left side, and the battery pack 2 on the right side is mounted.
  • On the sub-mounting frame on the rear side That is, in this embodiment, the existing integral battery pack is divided into two battery packs 2 which are arranged side by side.
  • the other battery pack 2 can operate normally and the vehicle can continue to travel. Moreover, when one of the left and right battery packs 2 is used, only the faulty battery pack 2 needs to be inspected and repaired. Moreover, it is also possible to arrange different power levels for the left and right battery packs 2.
  • the left side of the battery pack 2 on the left side and the left side of the battery pack 2 on the right side are fixedly coupled to the middle portion of the battery pack mounting rail 15b.
  • the battery pack sealing cover 21 of the battery pack 2 on the left side and the battery pack sealing cover 21 of the battery pack 2 on the right side constitute a front floor.
  • the middle mounting beams of the battery pack are all one beam, and the battery pack mounting frame includes two sub-mounting frames, 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 sub-mounting frames are formed, and four independent battery packs can be installed (one on the left and the left side, 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.
  • three sub-mounting frames are arranged side by side in the vehicle width direction, and three independent battery packs can be installed (one left, one right, one right).
  • the middle mounting beam of the battery pack includes two parallel battery pack middle mounting beams.
  • three sub-mounting frames are formed side by side in the length of the vehicle, and three independent battery packs (one in the front, one in the back) can be installed.
  • the battery pack sealing cover is an integrally formed sheet metal member.
  • a DC01 material having a thickness of 0.7 mm can be formed by press forming.
  • an embodiment of the present disclosure also provides an automobile 200, as shown in FIG. 8, which includes the vehicle body structure 100 of the above embodiment.
  • the battery pack installation space increases the size of the battery pack installation space along the width direction of the vehicle, and can greatly increase the volume of the battery pack while maintaining the height of the battery pack, and the larger battery pack can be installed more.
  • the battery module improves the battery capacity of the battery pack, thereby improving the battery life of the automobile 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, which increases the ground clearance of the vehicle body and improves
  • the road passability of the vehicle improves the space utilization rate, alleviates the total arrangement pressure, reduces the weight of the body structure 100, and realizes the weight reduction of the whole vehicle.

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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，车身结构包括电池包安装框架(1)及固定连接在电池包安装框架(1)上的电池包，电池包安装框架(1)包括左门槛(13)及右门槛(14)，电池包包括电池包密封盖(21)及电池托盘(22)，电池包密封盖(21)及电池托盘(22)之间形成容纳电池模组的密闭空间，电池包密封盖(21)与左门槛(13)及右门槛(14)连接以构成前地板。该结构增加了车身离地间隙，并降低了车身结构的重量。

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201810288910.2，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
本公开属于车身骨架技术领域，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。
现有技术中，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，在电池包高度不变的情况下，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。
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，电池包的宽度被限制在左门槛及右门槛之间，导致电池包的电池容量较小的问题，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及固定连接在所述电池包安装框架上的电池包，所述电池包安装框架包括左门槛及右门槛，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，所述电池包密封盖与所述左门槛及右门槛连接以构成前地板。
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。
本公开实施例的汽车，将现有的电池包左安装纵梁及电池包右安装纵梁之间的电池包安装空间直接拓宽至左门槛及右门槛之间的电池包安装空间，增大了电池包安装空间沿车宽方向的尺寸，在保持电池包高度不变的情况下可以大幅度的提升电池包的体积，更大体积的电池包可安装更多的电池模组，提升电池包的电池电量，从而提升汽车的续航能力。此外，电池包密封盖与左门槛及右门槛连接以构成前地板，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，降低了车身结构的重量，实现了整车轻量化。
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仰视图(电池包分离)；
图2是本公开一实施例提供的车身结构的立体图；
图3是本公开一实施例提供的车身结构的分解图；
图4是本公开一实施例提供的车身结构的电池包与左门槛连接处的局部剖视图；
图5是本公开另一实施例提供的车身结构的仰视图(电池包分离)；
图6是本公开另一实施例提供的车身结构的分解图；
图7是本公开另一实施例提供的车身结构的仰视图(电池包分离)；
图8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3中所示的Z方向，“前”、“后”方向指汽车的车长方向，即图3中所示的X方向，“左”、“右”方向指汽车的车宽方向，即图3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7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及电池包2，所述电池包安装框架1包括前横梁11、后横梁12、左门槛13及右门槛14。所述 左门槛13与右门槛14之间限定出所述电池包2的安装空间。所述电池包2固定连接在所述电池包安装框架1上且位于所述安装空间内。所述电池包2包括电池包密封盖21及电池托盘22，所述电池包密封盖21连接在所述电池托盘22的上方开口处，所述电池包密封盖21及电池托盘22之间形成容纳所述电池模组的密闭空间，所述电池包密封盖21及所述电池托盘22固定连接在所述电池包安装框架1上。所述电池包密封盖21与所述左门槛13及右门槛14连接以构成前地板。
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，为了配置出不同的电量组合，此种结构的汽车地板面板一般设计成凹凸不平。电池包布置在这个框架内，为了提升续航等原因，需要扩大电池包的空间体积，这个电池包的内部一般设计成中空的结构，并且在电池包的外部添加横梁与纵梁作为加强零件。此种设计的电池包结构，车身骨架一般为复杂的凹凸不平结构，电池包的外形也为横梁与纵梁交错的结构。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，在电池包高度不变的情况下，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。
而本公开实施例提供的车身结构100，取消电池包左安装纵梁及电池包右安装纵梁(车身结构100不设电池包左安装纵梁及电池包右安装纵梁)，左门槛13及右门槛14之间限定出电池包2的安装空间，电池包2固定连接在包含左门槛13及右门槛14的电池包安装框架1上且位于安装空间内。即，将现有的电池包左安装纵梁及电池包右安装纵梁之间的电池包安装空间直接拓宽至左门槛13及右门槛14之间的电池包安装空间，增大了电池包安装空间沿车宽方向的尺寸，在保持电池包高度不变的情况下可以大幅度的提升电池包2的体积，更大体积的电池包2可安装更多的电池模组，提升电池包2的电池电量，从而提升汽车的续航能力。
此外，电池包密封盖21与左门槛13及右门槛14连接以构成前地板，电池包密封盖21上可直接铺设地毯。这样，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，降低了车身结构100的重量，实现了整车轻量化。
在图1至图4的实施例中，所述电池包2为一个，一个所述电池包2的电池包密封盖 221构成前地板。
如图4所示，所述左门槛13包括具有封闭截面的左门槛本体131及设置在所述左门槛本体131的封闭截面内的左门槛加强板132，所述左门槛本体131的内侧表面设置有向内水平延伸的第一水平连接板1311。所述右门槛14具有与所述左门槛13类似的结构，即，所述右门槛14包括具有封闭截面的右门槛本体及设置在所述右门槛本体的封闭截面内的右门槛加强板，所述右门槛本体的内侧表面设置有向内水平延伸的第二水平连接板。
这样，电池包2与左门槛13及右门槛14直接固定连接，增强了左门槛13及右门槛14强度及抗扭性能，使得侧碰时，左门槛13及右门槛14的变形量较小。同时，左门槛13及右门槛14也能够对电池包2起到加强作用。
此外，所述第一水平连接板1311位于所述左门槛加强板132的底侧，所述左门槛加强板132能够进一步加强所述第一水平连接板1311与所述电池包2的连接位置处的强度和刚度。降低碰撞过程中所述第一水平连接板1311与所述电池包2的连接位置处的断裂风险。
同样地，所述第二水平连接板位于所述右门槛加强板的底侧，所述右门槛加强板能够进一步加强所述第二水平连接板与所述电池包2的连接位置处的强度和刚度。降低碰撞过程中所述第二水平连接板与所述电池包2的连接位置处的断裂风险。
如图1至图3所示，所述前横梁11、左门槛13、后横梁12及右门槛14顺次相接形成矩形框架，所述电池包2安装在所述矩形框架上以形成电池模组的安装空间。
如图2及图3所示，电池包密封盖21上设置有电池包的出线口结构211。
如图3及图4所示，所述电池托盘22包括底面板221及环绕所述底面板221的边缘一圈固定连接在所述底面板221上的呈矩形的边框，所述边框连接在所述电池包安装框架1上。一方面通过边框能够将电池包2安装在所述电池包安装框架1上，另一方面，边框增强电池包2的强度和刚度，以避免电池包2在发生撞击时过大的变形而导致的电池包2内的电池模组的挤压。
如图3所示，所述边框包括电池托盘前侧横梁222、电池托盘后侧横梁223、电池托盘左侧纵梁224及电池托盘右侧纵梁225，所述电池托盘前侧横梁222、电池托盘右侧纵梁225、电池托盘后侧横梁223及电池托盘左侧纵梁224顺次相接以构成所述边框。
如图4所示，所述电池托盘左侧纵梁224包括电池托盘左侧纵梁本体2241、由所述电池托盘左侧纵梁本体2241的顶部内侧向上延伸的第一竖向延伸部2242及由所述电池托盘左侧纵梁本体2241的底部内侧向右延伸的第一水平延伸部2243，所述第一水平延伸部2243的右侧通过焊接等方式搭接在所述底面板221上表面的左侧，所述第一竖向延伸部2242的上端与所述左门槛13固定连接，所述电池包密封盖21的左侧与所述左门槛13固定连接。优选地，所述电池包密封盖21的左侧通过胶粘与螺栓连接相结合的方式固定连接在所述第 一水平连接板1311的下表面，所述第一竖向延伸部2242的上端通过胶粘固定连接在所述左门槛本体131的第一水平连接板1311的下表面且位于所述电池包密封盖21的外侧。所述电池包密封盖21在其与第一水平连接板1311的螺栓连接位置镶嵌螺母(例如铆接螺母)。所述电池托盘左侧纵梁本体2241连接在所述左门槛本体131的下表面，所述电池托盘左侧纵梁本体2241与左门槛本体131通过螺栓等方式固定连接。这样，电池托盘22与左门槛13在顶部和底部形成两处连接，电池包密封盖21与左门槛13形成一处连接，即电池包2在三个位置分别与左门槛13连接，使得电池包2的左侧具有较大的连接强度。
此外，利用直接形成在左门槛13上的第一水平连接板1311与所述电池包密封盖21连接，能够减少一块连接板的使用，减小了零件数量，降低了重量。且能够使得侧碰时，左门槛13的力能够均匀地传递到电池托盘22，避免电池托盘22被过度挤压引起的电池包2的过大变形，有利于保证电池包2的安全。
所述电池托盘右侧纵梁225具有与所述电池托盘左侧纵梁224类似的结构，即，所述电池托盘右侧纵梁225包括电池托盘右侧纵梁本体(图中未示出)、由所述电池托盘右侧纵梁本体的顶部内侧向上延伸的第二竖向延伸部(图中未示出)及由所述电池托盘右侧纵梁本体的底部内侧向左延伸的第二水平延伸部(图中未示出)，所述第二水平延伸部的左侧通过焊接等方式搭接在所述底面板221上表面的右侧，所述第二竖向延伸部的上端与所述右门槛14固定连接，所述电池包密封盖21的右侧与所述右门槛14固定连接。优选地，所述电池包密封盖21的右侧通过胶粘与螺栓连接相结合的方式固定连接在所述第二水平连接板的下表面，所述第二竖向延伸部的上端通过胶粘固定连接在所述右门槛本体的第二水平连接板的下表面且位于所述电池包密封盖21的外侧。所述电池包密封盖21在其与第二水平连接板的螺栓连接位置镶嵌螺母(例如铆接螺母)。所述电池托盘右侧纵梁本体连接在所述右门槛本体的下表面，所述电池托盘右侧纵梁本体与右门槛本体通过螺栓等方式固定连接。这样，电池托盘22与右门槛14在顶部和底部形成两处连接，电池包密封盖21与右门槛14形成一处连接，即电池包2在三个位置分别与右门槛14连接，使得电池包2的右侧具有较大的连接强度。
此外，利用直接形成在右门槛14上的第二水平连接板与所述电池包密封盖21连接，能够减少一块连接板的使用，减小了零件数量，降低了重量。且能够使得侧碰时，右门槛14的力能够均匀地传递到电池托盘22，避免电池托盘22被过度挤压引起的电池包2的过大变形，有利于保证电池包2的安全。
此外，所述电池包密封盖21的左侧通过胶粘与螺栓连接相结合的方式固定连接在所述第一水平连接板1311的下表面，所述第一竖向延伸部2242的上端通过胶粘固定连接在所述左门槛本体131的第一水平连接板1311的下表面，所述电池包密封盖21的右侧通过胶 粘与螺栓连接相结合的方式固定连接在所述第二水平连接板的下表面，所述第二竖向延伸部的上端通过胶粘固定连接在所述右门槛本体的第二水平连接板的下表面。上述各部件的胶粘方式，一方面，能够保证前地板下方与乘员舱之间的密封性，另一方面，也实现了电池包2自身的密封。
如图3及图4所示，所述电池托盘22还包括电池托盘面板左加强板226、电池托盘面板右加强板(图中未示出)、电池托盘左侧纵梁下盖板227及电池托盘右侧纵梁下盖板228。所述电池托盘面板左加强板226通过焊接等方式固定连接在所述底面板221的下表面的左侧边缘处，所述电池托盘左侧纵梁下盖板227的内侧固定连接在所述电池托盘面板左加强板226上及底面板221之间，所述电池托盘左侧纵梁下盖板227的外侧固定连接在所述边框上，具体地，所述电池托盘左侧纵梁下盖板227的外侧固定连接在所述电池托盘左侧纵梁本体2241的外侧表面。所述电池托盘面板左加强板226，一方面，加强了所述底面板221左侧边缘的强度，另一方面，也提供了电池托盘左侧纵梁下盖板227的内侧安装位置。
所述电池托盘面板右加强板通过焊接等方式固定连接在所述底面板221的下表面的右侧边缘处，所述电池托盘右侧纵梁下盖板228的内侧固定连接在所述电池托盘面板右加强板及底面板221之间，所述电池托盘右侧纵梁下盖板228的外侧固定连接在所述边框上，具体地，所述电池托盘右侧纵梁下盖板228的外侧固定连接在所述电池托盘右侧纵梁本体的外侧表面。所述电池托盘面板右加强板，一方面，加强了所述底面板221右侧边缘的强度，另一方面，也提供了电池托盘右侧纵梁下盖板228的内侧安装位置。
电池托盘左侧纵梁下盖板227对安装完螺栓的电池托盘左侧纵梁224起到一定得遮丑装饰作用(即遮挡电池托盘左侧纵梁224上的螺栓)，同时也对整个电池包2起加强作用。同样，电池托盘右侧纵梁下盖板228对安装完螺栓的电池托盘右侧纵梁225起到一定得遮丑装饰作用(即遮挡电池托盘右侧纵梁225上的螺栓)，同时也对整个电池包2起加强作用。
如图4所示，所述电池托盘左侧纵梁下盖板227的外侧固定贴附在所述电池托盘左侧纵梁本体2241的外侧表面，所述电池托盘左侧纵梁下盖板227的内侧插接在所述电池托盘面板左加强板226上。
所述电池托盘右侧纵梁下盖板228的外侧固定贴附在所述电池托盘右侧纵梁本体的外侧表面，所述电池托盘右侧纵梁下盖板228的内侧插接在所述电池托盘面板右加强板上。
电池托盘左侧纵梁下盖板227可为金属板件或塑料板件。若电池托盘左侧纵梁下盖板227为金属板件，则电池托盘左侧纵梁下盖板227的外侧与所述电池托盘左侧纵梁本体2241的外侧表面通过自攻螺钉固定连接。若电池托盘左侧纵梁下盖板227为塑料板件，则电池托盘左侧纵梁下盖板227的外侧与所述电池托盘左侧纵梁本体2241的外侧表面通过卡扣连接。
同样，电池托盘右侧纵梁下盖板228可为金属板件或塑料板件。若电池托盘右侧纵梁下盖板228为金属板件，则电池托盘右侧纵梁下盖板228的外侧与所述电池托盘右侧纵梁本体的外侧表面通过自攻螺钉固定连接。若电池托盘右侧纵梁下盖板228为塑料板件，则电池托盘右侧纵梁下盖板228的外侧与所述电池托盘右侧纵梁本体的外侧表面通过卡扣连接。
如图4所示，所述电池托盘22还包括托盘面板加强梁结构229，所述加强梁结构229的底部连接在所述底面板221的上表面，所述加强梁结构229包含多根加强横梁2291及一根加强纵梁2292，所述加强横梁2291的左端与所述电池托盘左侧纵梁224连接，所述加强横梁2291的右端与所述电池托盘右侧纵梁225连接，所述加强纵梁2292的前端与所述电池托盘前侧横梁222连接，所述加强纵梁2292的后端与所述电池托盘后侧横梁223连接，每根加强横梁2291被加强纵梁分割成两段小横梁。优选地，多根加强横梁2291平行等间隔设置，所述加强纵梁2292垂直连接在多根加强横梁2291的中点位置(即每根加强横梁2291的两段小横梁长度相同)，以将电池托盘22分隔成多个相同的电池模组安装空间，以便于安放更多的电池模组。
然而，在一个替代实施例中，所述加强梁结构也可以是包含一根加强横梁及多根加强纵梁。另外，可以是加强横梁被加强纵梁分割成多段小横梁；也可以是，每根加强纵梁被加强横梁分割成两段小纵梁。
此外，在另一个替代实施例中，所述加强梁结构也可以是包含多根加强横梁及多根加强纵梁。此时，每根加强横梁被加强纵梁分割成多段小横梁，或者是，每根加强纵梁被加强横梁分割成多段小纵梁。
如图1至图3所示，所述车身结构100还包括由前至后依次排布的前座椅前安装横梁3、前座椅后安装横梁4及后座椅安装横梁5，所述前座椅前安装横梁3的左端通过焊接等方式固定连接在所述左门槛13上，所述前座椅前安装横梁3的右端通过焊接等方式固定连接在所述右门槛14上，所述前座椅后安装横梁4的左端通过焊接等方式固定连接在所述左门槛13上，所述前座椅后安装横梁4的右端通过焊接等方式固定连接在所述右门槛14上，所述后座椅安装横梁5的左端通过焊接等方式固定连接在所述左门槛13上，所述后座椅安装横梁5的右端通过焊接等方式固定连接在所述右门槛14上。电池包密封盖21通过胶粘等方式与所述前座椅前安装横梁3、前座椅后安装横梁4及后座椅安装横梁5固定连接。
在以上实施例中，所述电池包密封盖21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)。复合材料面板在满足强度要求的同时，能够降低电池包密封盖21的重量。
图5及图6所示为本公开另一实施例提供的车身结构100，该实施例中，与图1至图4所示实施例相同之处将不再描述。
如图5及图6所示，所述电池包安装框架1包括前横梁11、后横梁12、左门槛13、右门槛14及电池包中部安装梁，所述前横梁11、左门槛13、后横梁12及右门槛14顺次相接形成矩形框架，所述电池包中部安装梁设置在所述矩形框架的内侧，以将所述电池包安装框架1分隔成多个子安装框架。所述车身结构100包括相互独立的多个电池包2，多个所述电池包2一一对应地安装在多个所述子安装框架上。在该实施例中，多个所述电池包2的电池包密封盖21组合构成前地板。这样，多个所述电池包2的电池包密封盖21与前地板合二为一，省略了现有技术中的前地板，降低了车身结构100的重量。
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2”是指电池包2的数量为两个、三个或者更多个，“多个子安装框架”是指电池包安装框架1被分隔成两个、三个或者更多个子安装框架。
如图5及图6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在车长方向上位于所述前横梁11与后横梁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左门槛13上，所述电池包中部安装横梁15a的右端固定连接在所述右门槛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子安装框架，前侧的所述子安装框架由所述前横梁11、左门槛13、电池包中部安装横梁15a及右门槛14顺次相接构成，后侧的所述子安装框架由所述后横梁12、左门槛13、电池包中部安装横梁15a及右门槛14顺次相接构成。所述电池包安装框架1固定连接有前后并排的两个所述电池包2，前侧的所述电池包2安装在前侧的所述子安装框架上，后侧的所述电池包2安装在后侧的所述子安装框架上。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2。在其中一个电池包2出现故障后，另一个电池包2能够正常工作，车辆能够继续行驶。并且，采用前后两个电池包2当其中一个故障时，只需要对故障的电池包2进行检测维修。并且，还可以对前后两个电池包2进行不同电量的布置。
在该实施例中，如图5及图6所示，所述电池包中部安装横梁15a为闭口梁，所述电池包中部安装横梁15a的顶板151a固定连接在所述前座椅前安装横梁3及前座椅后安装横梁4下方，这样，通过所述前座椅前安装横梁3及前座椅后安装横梁4提高电池包中部安装横梁15a的强度。顶板151a位于所述前座椅前安装横梁3及前座椅后安装横梁4之间的部分露出并通过地毯覆盖。
在该实施例中，前侧的所述电池包2的后侧以及后侧的所述电池包2的前侧固定连接在所述电池包中部安装横梁15a上，并且，后侧的所述电池包2还与所述后座椅安装横梁 5通过胶粘等方式形成连接。前侧的所述电池包2的电池包密封盖21与后侧的所述电池包2的电池包密封盖21组合构成前地板。
通过后侧的所述电池包2与所述后座椅安装横梁5的连接，增强后部的所述电池包2的连接强度。
图7所示为本公开另一实施例提供的车身结构100。该实施例中，与图5及图6所示实施例相同之处将不再描述。
如图7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在位于所述左门槛13与右门槛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前横梁11上，所述电池包中部安装纵梁15b的后端固定连接在所述后横梁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子安装框架。左侧的所述子安装框架由所述前横梁11、电池包中部安装纵梁15b、后横梁12及左门槛13顺次相接构成，右侧的所述子安装框架由所述前横梁11、电池包中部安装纵梁15b、后横梁12及右门槛14顺次相接构成。所述电池包安装框架1固定连接有左右并排的两个所述电池包2，左侧的所述电池包2安装在左侧的所述子安装框架上，右侧的所述电池包2安装在后侧的所述子安装框架上。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2。在其中一个电池包2出现故障后，另一个电池包2能够正常工作，车辆能够继续行驶。并且，采用左右两个电池包2当其中一个故障时，只需要对故障的电池包2进行检测维修。并且，还可以对左右两个电池包2进行不同电量的布置。
在该实施例中，左侧的所述电池包2的右侧以及右侧的所述电池包2的左侧固定连接在所述电池包中部安装纵梁15b上。左侧的所述电池包2的电池包密封盖21与右侧的所述电池包2的电池包密封盖21组合构成前地板。
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子安装框架，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子安装框架，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，形成了四个子安装框架，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子安装框架，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子安装框架，可以安装三个独立的电池包(前中后各一个)。
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。例如，可采用料厚为0.7mm的DC01材料冲压成型。
另外，本公开一实施例还提供了一种汽车200，如图8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，本公开实施例的汽车200，将现有的电池包左安装纵梁及电池包右安装纵梁之间的电池包安装空间直接拓宽至左门槛及右门槛之间的电池包安装空间，增大了电池包安装空间沿车宽方向的尺寸，在保持电池包高度不变的情况下可以大幅度的提升电池包的体积，更大体积的电池包可安装更多的电池模组，提升电池包的电池电量，从而提升汽车200的续航能力。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 (14)

  1. 一种车身结构(100)，其特征在于，包括电池包安装框架(1)及固定连接在所述电池包安装框架(1)上的电池包，所述电池包安装框架(1)包括左门槛(13)及右门槛(14)，所述电池包包括电池包密封盖(21)及电池托盘(22)，所述电池包密封盖(21)及电池托盘(22)之间形成容纳电池模组的密闭空间，所述电池包密封盖(21)与所述左门槛(13)及右门槛(14)连接以构成前地板。
  2. 根据权利要求1所述的车身结构(100)，其特征在于，所述左门槛(13)包括具有封闭截面的左门槛本体(131)及设置在所述左门槛本体(131)的封闭截面内的左门槛加强板(132)，所述左门槛本体(131)的内侧表面设置有向内水平延伸的第一水平连接板(1311)，所述电池包密封盖(21)的左侧固定连接在所述第一水平连接板(1311)的下表面，所述第一水平连接板(1311)位于所述左门槛加强板(132)的底侧；
    所述右门槛(14)包括具有封闭截面的右门槛本体及设置在所述右门槛本体的封闭截面内的右门槛加强板，所述右门槛本体的内侧表面设置有向内水平延伸的第二水平连接板，所述电池包密封盖(21)的右侧固定连接在所述第二水平连接板的下表面，所述第二水平连接板位于所述左门槛加强板(132)的底侧。
  3. 根据权利要求2所述的车身结构(100)，其特征在于，所述电池托盘(22)包括底面板(221)及环绕所述底面板(221)的边缘一圈固定连接在所述底面板(221)上的边框，所述边框连接在所述电池包安装框架(1)上以形成电池模组的安装空间。
  4. 根据权利要求3所述的车身结构(100)，其特征在于，所述电池托盘(22)还包括电池托盘面板左加强板(226)、电池托盘面板右加强板、电池托盘左侧纵梁下盖板(227)及电池托盘右侧纵梁下盖板(228)；
    所述电池托盘面板左加强板(226)固定连接在所述底面板(221)的下表面的左侧边缘处，所述电池托盘左侧纵梁下盖板(227)的内侧固定连接在所述电池托盘面板左加强板(226)与底面板(221)之间，所述电池托盘左侧纵梁下盖板(227)的外侧固定连接在所述边框上；
    所述电池托盘面板右加强板固定连接在所述底面板(221)的下表面的右侧边缘处，所述电池托盘右侧纵梁下盖板(228)的内侧固定连接在所述电池托盘面板右加强板与底面板(221)之间，所述电池托盘右侧纵梁下盖板(228)的外侧固定连接在所述边框上。
  5. 根据权利要求3或4所述的车身结构(100)，其特征在于，所述边框包括电池托盘前侧横梁(222)、电池托盘后侧横梁(223)、电池托盘左侧纵梁(224)及电池托盘右侧纵梁(225)，所述电池托盘前侧横梁(222)、电池托盘右侧纵梁(225)、电池托盘后侧横梁 (223)及电池托盘左侧纵梁(224)顺次相接以构成所述边框。
  6. 根据权利要求5所述的车身结构(100)，其特征在于，所述电池托盘左侧纵梁(224)包括电池托盘左侧纵梁本体(2241)、由所述电池托盘左侧纵梁本体(2241)的顶部内侧向上延伸的第一竖向延伸部(2242)及由所述电池托盘左侧纵梁本体(2241)的底部内侧向右延伸的第一水平延伸部(2243)，所述第一水平延伸部(2243)的右侧搭接在所述底面板(221)上表面的左侧，所述第一竖向延伸部(2242)的上端固定连接在所述第一水平连接板(1311)的下表面且位于所述电池包密封盖(21)的外侧，所述电池托盘左侧纵梁本体(2241)连接在所述左门槛本体(131)的下表面；
    所述电池托盘右侧纵梁(225)包括电池托盘右侧纵梁本体、由所述电池托盘右侧纵梁本体的顶部内侧向上延伸的第二竖向延伸部及由所述电池托盘右侧纵梁本体的底部内侧向左延伸的第二水平延伸部，所述第二水平延伸部的左侧搭接在所述底面板(221)上表面的右侧，所述第二竖向延伸部的上端固定连接在所述第二水平连接板的下表面且位于所述电池包密封盖(21)的外侧，所述电池托盘右侧纵梁本体连接在所述右门槛本体的下表面。
  7. 根据权利要求5或6所述的车身结构(100)，其特征在于，所述电池托盘(22)还包括托盘面板加强梁结构(229)，所述加强梁结构(229)的底部连接在所述底面板(221)的上表面，所述加强梁结构(229)包含至少一根加强横梁(2291)及至少一根加强纵梁(2292)，所述加强横梁(2291)的左端与所述电池托盘左侧纵梁(224)连接，所述加强横梁(2291)的右端与所述电池托盘右侧纵梁(225)连接，所述加强纵梁(2292)的前端与所述电池托盘前侧横梁(222)连接，所述加强纵梁(2292)的后端与所述电池托盘后侧横梁(223)连接，所述加强横梁(2291)被所述加强纵梁(2292)分割成多段小横梁。
  8. 根据权利要求1-7任意一项所述的车身结构(100)，其特征在于，所述电池包安装框架(1)还包括前横梁(11)及后横梁(12)，所述前横梁(11)、左门槛(13)、后横梁(12)及右门槛(14)顺次相接形成矩形框架，所述电池包安装在所述矩形框架上。
  9. 根据权利要求1-8任意一项所述的车身结构(100)，其特征在于，所述电池包安装框架(1)还包括前横梁(11)、后横梁(12)及电池包中部安装梁，所述前横梁(11)、左门槛(13)、后横梁(12)及右门槛(14)顺次相接形成矩形框架，所述电池包中部安装梁设置在所述矩形框架的内侧，以将所述电池包安装框架(1)分隔成多个子安装框架；
    所述车身结构(100)包括相互独立的多个电池包，多个所述电池包一一对应地安装在多个所述子安装框架上。
  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)位于所述左门槛(13)与右门槛(14)之间，所述电池包中部安装纵梁(15b)的前端固定连接在前横梁(11)上， 所述电池包中部安装纵梁(15b)的后端固定连接在所述后横梁(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子安装框架，左侧的所述子安装框架由所述前横梁(11)、电池包中部安装纵梁(15b)、后横梁(12)及左门槛(13)顺次相接构成，右侧的所述子安装框架由所述前横梁(11)、电池包中部安装纵梁(15b)、后横梁(12)及右门槛(14)顺次相接构成；
    所述电池包安装框架(1)固定连接有左右并排的两个所述电池包，左侧的所述电池包安装在左侧的所述子安装框架上，右侧的所述电池包安装在右侧的所述子安装框架上。
  11. 根据权利要求9或10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)在车长方向上位于所述前横梁(11)与后横梁(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左门槛(13)上，所述电池包中部安装横梁(15a)的右端固定连接在所述右门槛(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子安装框架，前侧的所述子安装框架由所述前横梁(11)、左门槛、电池包中部安装横梁(15a)及右门槛(14)顺次相接构成，后侧的所述子安装框架由所述后横梁(12)、左门槛(13)、电池包中部安装横梁(15a)及右门槛(14)顺次相接构成；
    所述电池包安装框架(1)固定连接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子安装框架上，后侧的所述电池包安装在后侧的所述子安装框架上。
  12. 根据权利要求11所述的车身结构(100)，其特征在于，所述车身结构(100)还包括由前至后依次排布的前座椅前安装横梁(3)、前座椅后安装横梁(4)及后座椅安装横梁(5)，所述前座椅前安装横梁(3)的左端固定连接在所述左门槛(13)上，所述前座椅前安装横梁(3)的右端固定连接在所述右门槛(14)上，所述前座椅后安装横梁(4)的左端固定连接在所述左门槛(13)上，所述前座椅后安装横梁(4)的右端固定连接在所述右门槛(14)上，所述后座椅安装横梁(5)的左端固定连接在所述左门槛(13)上，所述后座椅安装横梁(5)的右端固定连接在所述右门槛(14)上，后侧的所述电池包与所述后座椅安装横梁(5)固定连接。
  13. 根据权利要求1-12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(21)为一体成型的复合材料面板。
  14. 一种汽车(200)，其特征在于，包括权利要求1-13任意一项所述的车身结构(100)。
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