WO2026007526A1 - 一种新能源汽车前地板加强梁结构及安装方法 - Google Patents

一种新能源汽车前地板加强梁结构及安装方法

Info

Publication number
WO2026007526A1
WO2026007526A1 PCT/CN2025/092569 CN2025092569W WO2026007526A1 WO 2026007526 A1 WO2026007526 A1 WO 2026007526A1 CN 2025092569 W CN2025092569 W CN 2025092569W WO 2026007526 A1 WO2026007526 A1 WO 2026007526A1
Authority
WO
WIPO (PCT)
Prior art keywords
crossbeam
new energy
rear crossbeam
floor
vehicle
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/CN2025/092569
Other languages
English (en)
French (fr)
Inventor
严婷
吴华鹏
程凯
孟凡亮
刘丽丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chery Automobile Co Ltd
Original Assignee
Chery Automobile Co Ltd
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 Chery Automobile Co Ltd filed Critical Chery Automobile Co Ltd
Priority to EP25770224.1A priority Critical patent/EP4699909A1/en
Priority to IL323660A priority patent/IL323660A/en
Priority to MX2025012038A priority patent/MX2025012038A/es
Priority to KR1020257038125A priority patent/KR20260005927A/ko
Publication of WO2026007526A1 publication Critical patent/WO2026007526A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • B62D25/02—Side panels
    • B62D25/025—Side sills thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
    • B62D25/2027—Floors or bottom sub-units in connection with other superstructure subunits the subunits being rear structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • B62D25/2072—Floor protection, e.g. from corrosion or scratching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D27/00—Connections between superstructure or understructure sub-units
    • B62D27/02—Connections between superstructure or understructure sub-units rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/01—Reducing damages in case of crash, e.g. by improving battery protection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
    • B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars

Definitions

  • This invention relates to the field of vehicle technology, specifically to a front floor reinforcement beam structure and installation method for new energy vehicles.
  • the front floor reinforcement beam of a car is part of the front floor assembly in the car body frame. It is mainly used to support the reinforcement structure of the front seats.
  • the seat rails, seat frame, sub-instrument panel, electrical components, etc. are mainly installed on it.
  • the quality of its beam structure directly affects the comfort of the seats, the instrument panel and the use of electrical components.
  • the beam structure design also has a significant impact on the safety of side pole impact. Therefore, designing a beam that meets performance requirements and balances cost and weight is of great significance.
  • this invention provides a front floor reinforcement beam structure and installation method for new energy vehicles. Under the conditions of meeting the requirements of layout, process and various performance, it can maximize weight reduction, reduce the number of parts and overlaps, and not increase material thickness. This is conducive to reducing the overall vehicle weight, reducing assembly time, thereby reducing costs, reducing power consumption for customers, increasing driving range, and thus improving market competitiveness.
  • a front floor reinforcement beam structure for a new energy vehicle including a front crossbeam and a rear crossbeam, which are connected by a plurality of longitudinal beams; each end of the front crossbeam is provided with a connecting side beam, and a plurality of mounting reinforcement brackets are provided on the front crossbeam, which is connected to the vehicle sill via the connecting side beams; each end of the rear crossbeam is provided with a front seat rear crossbeam side beam, and a front seat center mounting bracket is provided in the middle of the rear crossbeam;
  • the plurality of longitudinal beams include an L-shaped connecting longitudinal beam and a rectangular reinforcing longitudinal beam, one end of the L-shaped connecting longitudinal beam overlaps with the front crossbeam, one end of the rectangular reinforcing longitudinal beam is connected to the rear crossbeam, and the other end of the rectangular reinforcing longitudinal beam is connected to the front crossbeam.
  • the rear crossbeam of the front seat includes a first side beam and a second side beam connected to each other.
  • the first side beam covers the side of the rear crossbeam away from the front floor of the vehicle and the side of the rear crossbeam away from the front crossbeam.
  • the second side beam covers the side of the rear crossbeam away from the front floor of the vehicle and the side of the rear crossbeam close to the front crossbeam.
  • the first side beam and the second side beam are provided with a sill beam welding edge, a floor welding edge and a side beam connection welding edge.
  • a characteristic triangular rib is provided at the connection between the welded edge of the sill beam and the first side beam and the second side beam, and the welded edge of the sill beam is connected to the sill beam on the front floor by welding.
  • the L-shaped connecting longitudinal beam includes a connecting portion and a reinforcing portion.
  • the extending direction of the reinforcing portion is parallel to the front crossbeam, and the extending direction of the connecting portion is perpendicular to the front crossbeam.
  • One end of the connecting portion is connected to the rear crossbeam, and the other end of the connecting portion is connected to one end of the reinforcing portion.
  • the reinforcing portion is connected to the side of the front crossbeam near the front floor of the vehicle.
  • the rear crossbeam is roll-formed, the cross section of the rear crossbeam is a U-shaped structure, and the rear crossbeam is provided with front seat rear crossbeam mounting holes and seat mounting positioning holes.
  • the front crossbeam is formed by stamping, and each boss mounting surface of the front crossbeam for mounting reinforcement brackets is provided with front seat mounting holes.
  • the plurality of longitudinal beams includes two L-shaped connecting longitudinal beams, which are symmetrically arranged about a plane perpendicular to the length direction of the rear crossbeam.
  • the center mounting bracket of the front seat is a welded component
  • the edge of the center mounting bracket of the front seat is provided with a flange structure
  • the center mounting bracket of the front seat is provided with a plurality of second plug welding holes
  • the center mounting bracket of the front seat is welded to the rear crossbeam through the second plug welding holes.
  • the center mounting bracket of the front seat is bent toward the front floor of the vehicle on the side near the front crossbeam and has a Z-shaped cross-section perpendicular to the length direction of the rear crossbeam. At least a portion of the center mounting bracket of the front seat is welded to at least one of the plurality of longitudinal beams.
  • the orthographic projection of the center mounting bracket of the front seat onto the front floor of the vehicle is a U-shaped structure, and the recess of the U-shaped structure is located on one side near the front crossbeam.
  • the center mounting bracket of the front seat is provided with a plug welding hole, and the center mounting bracket of the front seat is welded to the connecting part through the plug welding hole.
  • the edge of the center mounting bracket of the front seat near the front crossbeam is the welding boundary for connection with the L-shaped connecting longitudinal beam.
  • a partial recessed surface is provided at the middle position of the connecting part, the partial recessed surface is used to fit against the front floor surface of the vehicle, and a battery mounting hole is provided on the partial recessed surface, through which the connecting part is fixedly connected to the battery.
  • the plurality of longitudinal beams includes two rectangular reinforcing longitudinal beams, which are symmetrically arranged about a plane perpendicular to the length direction of the rear crossbeam, and two L-shaped connecting longitudinal beams are located between the two rectangular reinforcing longitudinal beams.
  • the reinforcing portions of the two L-shaped connecting longitudinal beams extend in opposite directions, the rectangular reinforcing longitudinal beam is located between the reinforcing portion and the rear crossbeam, and the other end of the rectangular reinforcing longitudinal beam is connected to the reinforcing portion and the front crossbeam respectively.
  • a method for installing a front floor reinforcement beam structure of a new energy vehicle comprising the following steps:
  • the rear crossbeam is fixedly installed on the front floor of the vehicle, and both ends of the rear crossbeam are connected to the left and right door sills of the front floor via the side beams of the rear crossbeams of the front seats, respectively.
  • Both ends of the front crossbeam are connected to the vehicle's door sill via the connecting side beam;
  • the center mounting bracket for the front seat is installed at the middle position of the rear crossbeam, and multiple mounting reinforcement brackets are installed on the front crossbeam.
  • multiple longitudinal beams are connected between the front and rear crossbeams, forming a two-horizontal-multiple-longitudinal frame structure.
  • This rectangular frame structure with overlapping horizontal and vertical beams meets the platform requirements of the vehicle, satisfying not only the requirements for NVH performance, strength fatigue, safety, layout, and manufacturing processes, but also maximizing weight reduction and decreasing the number of molds, thus saving costs.
  • the overlapping structure of the L-shaped connecting longitudinal beams with the front crossbeam increases the connection area between the L-shaped connecting longitudinal beams and the front crossbeam, improving the connection strength between them.
  • the connection strength between the seat and the front and rear crossbeams can be improved, thereby improving the comfort of the seat.
  • the structure of the front seat middle mounting bracket by setting structures such as flanges, inclined ribs, and plug weld holes on the front seat middle mounting bracket, the rigidity of the seat mounting point in the middle of the rear crossbeam can be further increased.
  • front seat rear crossbeam side beams are respectively provided at both ends of the rear crossbeam, which can ensure the connection rigidity between the rear crossbeam and the door sill. No notches need to be made at the corners of the front seat rear crossbeam side beams, which can greatly improve the continuity of force transmission, meet the cross-sectional force required for safe side collision and pole collision, and enhance the rigidity and strength at the seat mounting point.
  • the new energy vehicle front floor reinforcement beam structure provided by this invention innovatively proposes a design scheme combining roll-formed parts with transverse and longitudinal beams.
  • the rear transverse beam uses roll-formed parts, while the front transverse beam uses ordinary stamped parts.
  • Various combination and connection technologies such as welding and solder joints are used to improve the platform-based performance of the front floor assembly, making it suitable for various configurations of multiple models and enhancing the product's market competitiveness.
  • Figure 1 is a schematic diagram of a front floor reinforcement beam structure for a new energy vehicle provided in an embodiment of this disclosure
  • Figure 2 is a schematic diagram of a front floor reinforcement beam structure of a new energy vehicle installed on the front floor of the vehicle according to an embodiment of the present disclosure.
  • Figure 3 is a structural schematic diagram of the rear crossbeam and longitudinal beam provided in an embodiment of this disclosure
  • Figure 4 is a structural schematic diagram of the front crossbeam and longitudinal beam provided in an embodiment of this disclosure.
  • FIG. 5 is a structural schematic diagram of the rear crossbeam provided in an embodiment of this disclosure.
  • Figure 6 is a top view of the rear crossbeam provided in an embodiment of this disclosure.
  • Figure 7 is a partial structural schematic diagram of the rear crossbeam provided in an embodiment of this disclosure.
  • Figure 8 is a cross-sectional view of the rear crossbeam provided in an embodiment of this disclosure.
  • Figure 9 is a schematic diagram of the front seat center mounting bracket provided in an embodiment of this disclosure.
  • Figure 10 is a schematic diagram of the front seat rear crossbeam side beam provided in an embodiment of this disclosure.
  • Figure 11 is a structural schematic diagram of the L-shaped connecting longitudinal beam provided in an embodiment of this disclosure.
  • Boss surface 5-3. Connecting part; 5-4. Reinforcing part; 6. Rectangular reinforcing longitudinal beam; 7. Front crossbeam; 7-1. Recessed platform; 8. Connecting side beam; 9. Mounting reinforcing bracket; 9-1. Front seat mounting hole.
  • connection or “linked” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.
  • the terms “upper,” “lower,” “left,” “right,” “top,” and “bottom,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.
  • FIG. 1 is a schematic diagram of a front floor reinforcement beam structure for a new energy vehicle provided in an embodiment of this disclosure.
  • the front floor reinforcement beam structure for a new energy vehicle includes a front crossbeam 7 and a rear crossbeam 3, which are connected by multiple longitudinal beams.
  • the front crossbeam 7 has connecting side beams 8 at both ends, and multiple mounting reinforcement brackets 9 on it.
  • the front crossbeam 7 is connected to the vehicle's door sill via the connecting side beams 8.
  • the rear crossbeam 3 has front seat rear crossbeam side beams at both ends, and a front seat center mounting bracket 4 is located in the middle of the rear crossbeam 3.
  • the multiple longitudinal beams include an L-shaped connecting longitudinal beam 5 and a rectangular reinforcing longitudinal beam 6.
  • One end of the L-shaped connecting longitudinal beam 5 overlaps with the front crossbeam 7 one end of the rectangular reinforcing longitudinal beam 6 is connected to the rear crossbeam 3, and the other end of the rectangular reinforcing longitudinal beam 6 is connected to the front crossbeam 7.
  • multiple longitudinal beams are connected between the front crossbeam 7 and the rear crossbeam 3, forming a two-horizontal-multiple-longitudinal frame structure.
  • This rectangular frame structure with overlapping horizontal and vertical beams meets the platform requirements of the vehicle, satisfying not only the requirements for NVH performance, strength fatigue, safety, layout, and manufacturing processes, but also maximizing weight reduction and decreasing the number of molds, thus saving costs.
  • a reinforcing bracket 9 on the front crossbeam 7 and a front seat center bracket 4 on the rear crossbeam 3
  • the connection strength between the seat and the front and rear crossbeams 7 and 3 can be improved, enhancing seat comfort.
  • the overlapping structure of the L-shaped connecting longitudinal beam 5 with the front crossbeam 7 increases the connection area between the L-shaped connecting longitudinal beam 5 and the front crossbeam 7, improving the connection strength between them.
  • Figure 2 is a schematic diagram of a front floor reinforcement beam structure for a new energy vehicle, provided by an embodiment of this disclosure, installed on the front floor of the vehicle.
  • the number of crossbeams can be 2-4, and the number of longitudinal beams can be 2-6.
  • the front floor reinforcement beam structure for a new energy vehicle provided by this disclosure can have four longitudinal beams.
  • the connected crossbeams and longitudinal beams form a two-cross, four-longitudinal frame structure on the front floor.
  • the number of crossbeams and longitudinal beams can be increased or decreased according to the layout and performance requirements. It can also be designed with three crossbeams and two longitudinal beams, or two crossbeams and five longitudinal beams.
  • Figure 5 is a structural schematic diagram of the rear crossbeam provided in an embodiment of this disclosure.
  • Figure 10 is a schematic diagram of the side beam of the front seat rear crossbeam provided in an embodiment of this disclosure.
  • the side beam of the front seat rear crossbeam includes a first side beam 1 and a second side beam 2 connected to each other.
  • the first side beam 1 covers the side of the rear crossbeam 3 away from the front floor of the vehicle and the side of the rear crossbeam 3 away from the front crossbeam 7.
  • the second side beam 2 covers the side of the rear crossbeam 3 away from the front floor of the vehicle and the side of the rear crossbeam 3 close to the front crossbeam 7.
  • the first side beam 1 and the second side beam 2 are provided with a sill beam welding edge 1-2, a floor welding edge 1-5 and a side beam connecting welding edge 1-3.
  • a characteristic triangular rib 1-1 is provided at the connection between the sill beam welding edge 1-2 and the first side beam 1 and the second side beam 2.
  • the sill beam welding edge 1-2 is connected to the sill beam on the front floor by welding.
  • connection rigidity with the door sill is ensured.
  • the corner bends do not require notches to meet manufacturing requirements, significantly improving force transmission continuity, meeting the cross-sectional force requirements for safe side impacts and pole impacts, and enhancing the rigidity and strength at the seat mounting point.
  • the characteristic triangular ribs 1-1 on the first side beam 1 and the second side beam 2 should be as close as possible to the upper edges of the first side beam 1 and the second side beam 2, thereby increasing the connection bending rigidity of the components themselves.
  • the sill beam is connected to the sill beam via the welded edge 1-2, and the floor is connected to the front floor via the welded edge 1-5.
  • a protrusion at the connection point between the floor welded edge 1-5 and the front floor better matches the connection rigidity at the floor.
  • connection welds as possible can be provided on the sill beam welded edge 1-2 and the floor welded edge 1-5.
  • the side beam connection welded edge 1-3 is the welded edge of the first side beam 1 and the second side beam 2, and the connection between the side beam connection welded edge 1-3 and the sill uses a three-layer weld, which better increases the connection rigidity and ensures the connection strength.
  • Figure 7 is a partial structural schematic diagram of the rear crossbeam provided in an embodiment of this disclosure.
  • the first side beam 1 and the second side beam 2 are also provided with first plug welding holes 1-4.
  • the embodiments of this disclosure do not limit the specific number of first plug welding holes 1-4, but they must simultaneously meet the flatness design required for assembly, and can be 4-15.
  • a total of eleven first plug welding holes 1-4 are provided on the first side beam 1 and the second side beam 2.
  • the first plug welding holes 1-4 are mainly used to connect the first side beam 1 and the second side beam 2 to the rear crossbeam 3 respectively.
  • the second side beam 2 is provided with a mating hole 2-1, and the rear crossbeam 3 is provided with a seat mounting positioning hole 3-3.
  • the mating hole 2-1 and the seat mounting positioning hole 3-3 completely overlap for installing the seat, while avoiding the position of the second side beam 2 from affecting the seat installation.
  • the rear crossbeam 3 is integrally formed by roll forming.
  • Figure 6 is a top view of the rear crossbeam provided in this embodiment
  • Figure 8 is a cross-sectional view of the rear crossbeam provided in this embodiment.
  • the cross-section of the roll forming part is a U-shaped structure.
  • the cross-sectional shape of the roll forming part is two or three U-shaped shapes.
  • the plate material can be bent to form a small U-shaped cross-section.
  • the plate material is then welded by welding.
  • the remaining plate material is roll-formed again and welded to the small U-shaped vertical welding plane.
  • the two closed cavities formed can greatly increase the vertical bending stiffness and axial stiffness, improve the axial force of the cross-section, and provide a high strength guarantee to meet the safety requirements of side column impact.
  • the rear crossbeam 3 is provided with four front seat rear crossbeam mounting holes 3-2.
  • the two middle mounting holes are relatively weak in rigidity because they are far from the door sill, and therefore require local reinforcement.
  • four seat mounting positioning holes 3-3 are also provided.
  • FIG 4 is a schematic diagram of the front crossbeam and longitudinal beam provided in the embodiment of this disclosure.
  • the front crossbeam 7 is formed by stamping. Due to cost and space constraints, the cross-sectional height of the front crossbeam 7 is about 14 mm higher than that of the rear crossbeam 3, which can better compensate for the loss of bending stiffness and axial force due to the single cavity.
  • a recessed platform 7-1 is provided on the side of the front crossbeam 7 away from the front floor of the vehicle. The recessed platform 7-1 is used to install the interior trim of the vehicle and can increase the local stiffness of the rear crossbeam 3.
  • the connecting side beam 8 differs from the first side beam 1 and the second side beam 2 in that the corner of the connecting side beam 8 has a notch design of different sizes.
  • the connecting side beam 8 has a simple structure, is easy to stamp and form, and can also meet the requirements of stiffness, strength and collision safety.
  • each mounting bracket 9 of the front crossbeam 7 has a front seat mounting hole 9-1 on its boss mounting surface.
  • the mounting bracket 9 is connected to the upper surface and side weld points of the front crossbeam to form a closed beam structure, which greatly increases the local stiffness of the seat mounting point.
  • FIG 3 is a schematic diagram of the structure of the rear crossbeam and longitudinal beam provided in an embodiment of this disclosure.
  • Figure 9 is a schematic diagram of the front seat center mounting bracket provided in an embodiment of this disclosure.
  • the front seat center mounting bracket 4 is a welded component.
  • the edge of the front seat center mounting bracket 4 is provided with a flange structure 4-1.
  • the flange structure 4-1 helps to increase the bending and torsional stiffness of the front seat center mounting bracket 4.
  • the bending height of the flange structure 4-1 in the vehicle height direction can be 4mm-12mm.
  • the front seat center mounting bracket 4 is provided with a plurality of second plug welding holes 4-3.
  • the front seat center mounting bracket 4 is welded to the rear crossbeam 3 through the second plug welding holes 4-3.
  • 3-15 second plug welding holes 4-3 are provided.
  • the specific number of second plug welding holes 4-3 is not limited, but it must meet the flatness design specified by the process and not produce abnormal noise at the contact surface.
  • the L-shaped connecting longitudinal beam 5 includes a connecting portion 5-3 and a reinforcing portion 5-4.
  • the extending direction of the reinforcing portion 5-4 is parallel to the length direction of the front crossbeam 7, and the extending direction of the connecting portion 5-3 is perpendicular to the length direction of the front crossbeam 7.
  • One end of the connecting portion 5-3 is connected to the rear crossbeam 3, and the other end of the connecting portion 5-3 is connected to one end of the reinforcing portion 5-4.
  • the reinforcing portion 5-4 is connected to the side of the front crossbeam 7 near the front floor of the vehicle.
  • the reinforcing portion 5-4 and the front crossbeam 7 are stacked, thereby increasing the area of the connection surface between the L-shaped connecting longitudinal beam 5 and the front crossbeam 7 and improving the connection strength between the L-shaped connecting longitudinal beam 5 and the front crossbeam 7.
  • the plurality of longitudinal beams include two L-shaped connecting longitudinal beams 5, which are symmetrically arranged about a plane perpendicular to the length direction of the rear crossbeam 3.
  • the front seat center mounting bracket 4 is bent towards the front floor of the vehicle from the side near the front crossbeam 7, and has a Z-shaped cross section A-A perpendicular to the length direction of the rear crossbeam 3. At least a portion of the front seat center mounting bracket 4 is welded to at least one of the plurality of longitudinal beams.
  • the front seat center mounting bracket 4 is bent towards the front floor of the vehicle from the side near the front crossbeam 7, and then bent towards the front crossbeam 7, thereby adapting the front seat center mounting bracket 4 to the connection structure between the rear crossbeam 3 and the plurality of longitudinal beams, increasing the welding area between the front seat center mounting bracket 4 and the rear crossbeam 3 and the plurality of longitudinal beams, and improving the stability of the seat installation.
  • the orthographic projection of the front seat center mounting bracket 4 on the front floor of the vehicle is a U-shaped structure.
  • the recessed portion 4-6 of the U-shaped structure is located on the side close to the front crossbeam 7, so that the two ends of the front seat center mounting bracket 4 have Z-shaped bends, thereby connecting the two ends of the front seat center mounting bracket 4 to the connecting portions 5-3 of the two L-shaped connecting longitudinal beams 5 respectively.
  • the center mounting bracket 4 of the front seat is provided with plug welding holes.
  • the center mounting bracket 4 of the front seat is welded to the connecting part 5-3 through the plug welding holes to increase the connection rigidity with the longitudinal beam.
  • the edge of the center mounting bracket 4 of the front seat near the front crossbeam 7 is the welding boundary 4-5 connecting to the L-shaped connecting longitudinal beam 5.
  • the length of the welding boundary 4-5 should be as large as possible while meeting the tool operating space to ensure the rigidity of the connection between the L-shaped connecting longitudinal beam 5 and the rear crossbeam 3 and increase the transmission path.
  • the rigidity of the center mounting bracket 4 of the front seat is a key reinforcing component for increasing the rigidity of the center seat mounting point on the rolled part.
  • Seat comfort is related to the rigidity of the body connection point and the rigidity of the seat itself. Good rigidity of the body connection point is one of the important indicators of seat comfort.
  • connection between the U-shaped structure on the center mounting bracket of the front seat and other parts of the center mounting bracket of the front seat is provided with inclined ribs 4-2.
  • inclined ribs 4-2 There are two inclined ribs 4-2 symmetrically arranged on the left and right sides, which greatly increases the transition stiffness of the two planes with height difference of the center mounting bracket of the front seat 4.
  • FIG 11 is a schematic diagram of the structure of the L-shaped connecting longitudinal beam provided in the embodiment of this disclosure.
  • the L-shaped connecting longitudinal beam 5 has an L-shaped cross-section with a certain height protrusion in the middle.
  • the L-shape can connect the two crossbeams 3 and 7 together, which better enhances the bending stiffness of the rear crossbeam 7 than the rectangular reinforced longitudinal beam 6, which helps to ensure safe side impact and pole impact performance, and meets the collision performance of the whole vehicle under different battery sizes and different weight conditions of two-wheel drive and four-wheel drive vehicles.
  • a partially recessed surface is provided at the connecting portion 5-3 of the L-shaped connecting longitudinal beam 5, which is used to fit against the vehicle floor surface.
  • a battery mounting hole 5-1 is provided on the partially recessed surface, and the connecting portion 5-3 is fixedly connected to the battery through the battery mounting hole 5-1.
  • the partially recessed surface has a sloping cross-section that matches the floor for the battery mounting hole, and the connecting portion 5-3 can be fixedly connected to the battery with bolts.
  • the battery under the floor and the cross-sections of the cross beams and longitudinal beams above the floor form a high-rigidity connection structure, effectively ensuring the rigidity at the connection point between the front seat rear cross beam mounting hole 3-2 and the middle seat on the rear cross beam 3. Moreover, the cooperation between the battery and the longitudinal beam also greatly reduces the increase in platform weight and cost.
  • the multiple longitudinal beams include two rectangular reinforcing longitudinal beams 6, which are symmetrically arranged about a plane perpendicular to the length direction of the rear crossbeam 3.
  • Two L-shaped connecting longitudinal beams 5 are located between the two rectangular reinforcing longitudinal beams 6. Due to limitations in assembly space and process welding points, it is not necessary to set all longitudinal beams into L-shaped structures.
  • the rectangular reinforcing longitudinal beams 6 are welded to the front crossbeam, rear crossbeam, and floor around their perimeter. This not only increases the bending and torsional stiffness of the crossbeams 3 and 7, but also separates the floor area, which can greatly increase the stiffness of the thin floor panel.
  • the reinforcing portions 5-4 of the two L-shaped connecting longitudinal beams 5 extend in opposite directions.
  • a rectangular reinforcing longitudinal beam 6 is located between the reinforcing portion 5-4 and the rear crossbeam 3, and the other end of the rectangular reinforcing longitudinal beam 6 is connected to both the reinforcing portion 5-4 and the front crossbeam 7.
  • the other end of the rectangular reinforcing longitudinal beam 6 is layered between the front crossbeam 7 and the reinforcing portion 5-4, and the other end of the rectangular reinforcing longitudinal beam 6 is welded to both the front crossbeam 7 and the reinforcing portion 5-4.
  • the connection structure between the rectangular reinforcing longitudinal beam 6, the front crossbeam 7, and the L-shaped connecting longitudinal beams 5 is more robust, which helps to increase the overall strength of the frame structure formed by the crossbeams and longitudinal beams.
  • the reinforcing part 5-4 of the L-shaped connecting longitudinal beam 5 is provided with a boss surface 5-2.
  • the boss surface 5-2 protrudes in the direction close to the front crossbeam 7.
  • the boss surface 5-2 is used to increase the rigidity of the reinforcing part 5-4, thereby improving the connection strength of the front crossbeam 7.
  • the rear crossbeam 3 is fixedly installed on the front floor of the vehicle, and both ends of the rear crossbeam 3 are connected to the left and right door sills of the front floor through the side beams of the rear crossbeams of the front seats.
  • the two ends of the front crossbeam 7 are connected to the left and right thresholds of the front floor via the connecting side beams 8.
  • a front seat center mounting bracket 4 is installed in the middle of the rear crossbeam 3, and multiple mounting reinforcement brackets 9 are installed on the front crossbeam 7.
  • a design scheme for combining roll-formed parts with transverse and longitudinal beams is provided.
  • Various combination and connection technologies such as welding and weld points are adopted to improve the platform utilization performance of the front floor assembly.
  • a method for installing a front floor reinforcement beam structure for a new energy vehicle is also provided. This method is used to install the front floor reinforcement beam structure for a new energy vehicle involved in any of the above embodiments, and includes the following steps:
  • the rear crossbeam 3 is fixedly installed on the front floor, and both ends of the rear crossbeam 3 are connected to the left and right door sills of the front floor through the side beams of the rear crossbeam of the front seat.
  • the two ends of the front crossbeam 7 are connected to the left and right thresholds of the front floor via the side beams 8.
  • a front seat center mounting bracket 4 is installed in the middle of the rear crossbeam 3, and multiple mounting reinforcement brackets 9 are installed on the front crossbeam 7.
  • a front floor reinforcement beam structure for a new energy vehicle comprising a front crossbeam 7 and a rear crossbeam 3, wherein the front crossbeam 7 and the rear crossbeam 3 are connected by multiple longitudinal beams; the two ends of the front crossbeam 7 are respectively provided with connecting side beams 8 connected to the door sill, and multiple mounting reinforcement brackets 9 are provided on the front crossbeam 7; the two ends of the rear crossbeam 3 are respectively provided with front seat rear crossbeam side beams, and the middle position of the rear crossbeam 3 is provided with a front seat middle mounting bracket 4;
  • the longitudinal beams include an L-shaped connecting longitudinal beam 5 and a rectangular reinforcing longitudinal beam 6, wherein the rectangular reinforcing longitudinal beam 6 is located inside the L-shaped connecting longitudinal beam 5.
  • the front seat rear crossbeam includes a first side beam 1 and a second side beam 2 connected front and rear, and the first side beam 1 and the second side beam 2 are provided with a sill beam welding edge 1-2, a floor welding edge 1-5 and a side beam connection welding edge 1-3.
  • Example 3 According to the new energy vehicle front floor reinforcement beam structure described in Example 2, a characteristic triangular rib 1-1 is provided at the connection between the sill beam welding edge 1-2 and the side beam, and the sill beam welding edge 1-2 connects the side beam and the sill beam on the front floor by welding.
  • Example 4 According to the new energy vehicle front floor reinforcement beam structure described in Example 1, the rear crossbeam 3 is made of a roll-formed component with a U-shaped cross section, and the rear crossbeam 3 is provided with a front seat rear crossbeam mounting hole 3-2 and a seat mounting positioning hole 3-3.
  • Example 5 According to the new energy vehicle front floor reinforcement beam structure described in Example 1, wherein the front crossbeam 7 is made of stamped parts, and each mounting bracket 9 of the front crossbeam 7 has a front seat mounting hole 9-1 on its boss mounting surface.
  • the front seat middle mounting bracket 4 is a welded part, and a flange structure 4-1 is provided around the front seat middle mounting bracket 4.
  • the front seat middle mounting bracket 4 is provided with a plurality of second plug welding holes 4-3, and is welded to the rear crossbeam 3 through the second plug welding holes 4-3.
  • Example 7 According to the new energy vehicle front floor reinforcement beam structure described in Example 6, the cross section of the front seat middle mounting bracket 4 is Z-shaped, one end of the front seat middle mounting bracket 4 is a U-shaped structure, the U-shaped structure is provided with plug welding holes, and is connected to the longitudinal beam through the plug welding holes. The front edge of the U-shaped structure serves as the welding boundary 4-5 for connection with the longitudinal beam.
  • Example 8 According to the new energy vehicle front floor reinforcement beam structure described in Example 1, there are two L-shaped connecting longitudinal beams 5, which are symmetrically arranged on the left and right. A partial concave surface is provided at the middle position of the L-shaped connecting longitudinal beam 5 connecting the front crossbeam 7 and the rear crossbeam 3. The partial concave surface is in contact with the front floor surface. A battery mounting hole 5-1 is provided on the partial concave surface, and the battery is connected through the battery mounting hole 5-1.
  • Example 9 According to the new energy vehicle front floor reinforcement beam structure described in Example 1, there are two rectangular reinforcement longitudinal beams 6, which are symmetrically arranged on the left and right sides.
  • the rectangular reinforcement longitudinal beams 6 are welded to the front crossbeam 7, the rear crossbeam 3 and the front floor around their perimeter.
  • Example 10 An installation method for a front floor reinforcement beam structure of a new energy vehicle according to Example 1, comprising the following steps:
  • the rear crossbeam 3 is fixedly installed on the front floor, and both ends of the rear crossbeam 3 are connected to the left and right door sills of the front floor through the side beams of the rear crossbeam of the front seat.
  • a front seat center mounting bracket 4 is installed in the middle of the rear crossbeam 3, and multiple mounting reinforcement brackets 9 are installed on the front crossbeam 7.
  • the installation method of the front floor reinforcement beam structure of the new energy vehicle provided in this embodiment involves installing the rear crossbeam, longitudinal beam and front crossbeam in sequence, and then installing the front seat middle mounting bracket and multiple mounting reinforcement brackets.
  • the various structures are installed in sequence according to the overlapping order, which improves the installation efficiency and installation effect of the reinforcement beam structure.

Landscapes

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

Abstract

一种新能源汽车前地板加强梁结构，包括前横梁（7）和后横梁（3），前横梁和后横梁之间通过多个纵梁连接；前横梁的两端分别设置有连接边梁（8），前横梁上设置有多个安装加强支架（9），前横梁通过连接边梁与车辆的门槛相连；后横梁的两端分别设置有前座椅后横梁边梁，后横梁的中间位置设置有前座椅中间安装支架（4）；多个纵梁包括L型连接纵梁（5）和矩形加强纵梁（6），L型连接纵梁的一端与前横梁重叠设置，矩形加强纵梁的一端与后横梁相连，矩形加强纵梁的另一端与前横梁相连。该结构能满足车辆的平台化要求，提高连接强度。另外，还涉及一种新能源汽车前地板加强梁结构的安装方法。

Description

一种新能源汽车前地板加强梁结构及安装方法
本公开要求于2024年07月01日提交的申请号为202410871893.0、发明名称为“一种新能源汽车前地板加强梁结构及安装方法”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本发明涉及车辆技术领域，具体涉及一种新能源汽车前地板加强梁结构及安装方法。
背景技术
随着汽车行业的飞速发展，汽车的可靠性、安全性和舒适性的提高尤为重要。为了响应国家节能减排的号召，加上新能源市场的日益火爆，电动汽车续航里程要求越来越高，在使结构满足各种性能的基础上，对其进行轻量化设计，使其在满足布置、性能和工艺要求的同时，重量达到最轻，从而提出了更高的挑战。
汽车前地板加强梁属于车身骨架中前地板总成的一部分，主要用于支撑前座椅的加强结构，其上主要安装座椅导轨、座椅骨架、副仪表板、电器件等，其梁结构好坏直接影响到座椅的舒适性、仪表以及电器件使用等，梁结构设计对安全侧柱碰也有较大影响，因此，设计一款满足性能要求，并且平衡成本、重量有很重大的意义。
现有设计一般是平地板加上三条横梁冲压件焊接，B柱两侧搭配小的盖板，或者中间有中通道加上两条横梁冲压件焊接，还有结构是两条纵梁加上两条横梁结构加强地板结构。纯电动汽车上因为没有排气系统，前地板上没有中通道凸起截面的设计，这就增加了前座椅位于横梁上的中间安装点刚度设计的难度，而这里的刚度直接影响主副驾驶的乘坐舒适性；并且地板下部为了安装电池，没有足够的空间做上下扣在一起的封闭梁，这也为满足安全侧柱碰要求的性能提升增加了难度。
发明内容
针对现有技术存在的问题，本发明提供一种新能源汽车前地板加强梁结构及安装方法，在满足布置、工艺以及各项性能的条件下，可以最大限度的减重、减少件的数量和搭接、不增加料厚，有利于降低整车重量，减少装配工时，以此降低成本，减少客户使用耗电量，提高续航里程，从而提高市场竞争力。
本发明的技术方案如下：
根据本公开的第一方面，提供了一种新能源汽车前地板加强梁结构，包括前横梁和后横梁，所述前横梁和后横梁之间通过多个纵梁连接；所述前横梁的两端分别设置有连接边梁，所述前横梁上设置有多个安装加强支架，所述前横梁通过连接边梁与车辆的门槛相连；所述后横梁的两端分别设置有前座椅后横梁边梁，后横梁的中间位置设置有前座椅中间安装支架；所述多个纵梁包括L型连接纵梁和矩形加强纵梁，所述L型连接纵梁的一端与所述前横梁重叠设置，所述矩形加强纵梁的一端与所述后横梁相连，所述矩形加强纵梁的另一端与所述前横梁相连。
在本公开的一些实施例中，所述前座椅后横梁边梁包括相互连接的第一边梁和第二边梁，所述第一边梁覆盖所述后横梁远离车辆的前地板的一侧以及所述后横梁远离所述前横梁的一侧，所述第二边梁覆盖所述后横梁远离车辆的前地板的一侧以及所述后横梁靠近所述前横梁的一侧，所述第一边梁和所述第二边梁上设置有门槛梁焊接边、地板焊接边和边梁连接焊接边。
在本公开的一些实施例中，所述门槛梁焊接边与所述第一边梁和所述第二边梁的连接处设置有特征三角筋，所述门槛梁焊接边与前地板上的门槛梁通过焊接的方式连接。
在本公开的一些实施例中，所述L型连接纵梁包括连接部和加强部，所述加强部的延伸方向平行于所述前横梁，所述连接部的延伸方向垂直于所述前横梁，所述连接部的一端与所述后横梁相连，所述连接部的另一端与所述加强部的一端相连，所述加强部与所述前横梁靠近车辆的前地板的一面相连。
在本公开的一些实施例中，所述后横梁采用辊压成型，所述后横梁的截面为口字型结构，所述后横梁上设置有前座椅后横梁安装孔和座椅安装定位孔。
在本公开的一些实施例中，所述前横梁采用冲压成型，前横梁的每个安装加强支架的凸台安装面上均设置有前排座椅安装孔。
在本公开的一些实施例中，所述多个纵梁包括两个所述L型连接纵梁，两个所述L型连接纵梁关于垂直于所述后横梁的长度方向的平面对称设置。
在本公开的一些实施例中，所述前座椅中间安装支架采用焊接件，所述前座椅中间安装支架的边缘设置有翻边结构，所述前座椅中间安装支架上设置有多个第二塞焊孔，前座椅中间安装支架通过第二塞焊孔与后横梁焊接相连。
在本公开的一些实施例中，所述前座椅中间安装支架靠近所述前横梁的一侧向靠近车辆的前地板的方向弯折，并在垂直于所述后横梁的长度方向的截面形状为Z字型，所述前座椅中间安装支架的至少部分与所述多个纵梁中的至少一个焊接连接。
在本公开的一些实施例中，所述前座椅中间安装支架在车辆的前地板上的正投影为U型结构，所述U型结构的凹陷部位于靠近所述前横梁的一侧。
在本公开的一些实施例中，所述前座椅中间安装支架上设置有塞焊孔，所述前座椅中间安装支架通过所述塞焊孔与所述连接部焊接连接，所述前座椅中间安装支架靠近所述前横梁的边缘为与所述L型连接纵梁连接的烧焊边界。
在本公开的一些实施例中，所述连接部的中间位置设置有局部凹陷面，所述局部凹陷面用于与车辆的前地板面贴合，所述局部凹陷面上设置有电池安装孔，所述连接部通过所述电池安装孔与电池固定连接。
在本公开的一些实施例中，所述多个纵梁包括两个所述矩形加强纵梁，两个所述矩形加强纵梁关于垂直于所述后横梁的长度方向的平面对称设置，两个所述L型连接纵梁位于两个所述矩形加强纵梁之间。
在本公开的一些实施例中，两个所述L型连接纵梁的加强部分别向相背的方向延伸，所述矩形加强纵梁位于所述加强部与所述后横梁之间，并且所述矩形加强纵梁的另一端分别与所述加强部和所述前横梁相连。
根据本公开实施例的第二方面，提供了一种新能源汽车前地板加强梁结构的安装方法，包括以下步骤：
将所述后横梁固定安装在车辆的前地板上，并将所述后横梁的两端分别通过所述前座椅后横梁边梁与所述前地板的左右门槛相连；
将所述L型连接纵梁的一端和所述矩形加强纵梁的一端与所述后横梁连接，并与所述前地板固定连接；
将所述L型连接纵梁的另一端和所述矩形加强纵梁的另一端与所述前横梁连接，并将所述前横梁与所述地板固定连接；
将所述前横梁的两端分别通过所述连接边梁与所述车辆的门槛相连；
在所述后横梁的中间位置上安装所述前座椅中间安装支架，在所述前横梁上安装多个所述安装加强支架。
本发明一个或多个技术方案具有以下有益效果：
本公开实施例提供的新能源汽车前地板加强梁结构中，前横梁和后横梁之间连接设置有多个纵梁，形成两横多纵的框架结构，横纵搭接的矩形框架结构能满足车辆的平台化要求，不仅能满足NVH性能、强度疲劳、安全、布置、工艺等的要求，还能最大限度减重，并降低模具数量，更好地节约成本。L型连接纵梁与前横梁重叠的结构能够增加L型连接纵梁与前横梁的连接面积，提高L型连接纵梁与前横梁的连接强度。
在本公开实施例提供的新能源汽车前地板加强梁结构中，通过在前横梁上设置安装加强支架，在后横梁上设置前座椅中间安装支架，能够提高座椅与前横梁和后横梁的连接强度，提高座椅的舒适性；同时，通过对前座椅中间安装支架的结构设计，在前座椅中间安装支架上设置翻边、斜面凸筋、塞焊孔等结构，能够进一步增加后横梁中间座椅安装点的刚度。
在本公开实施例提供的新能源汽车前地板加强梁结构中，后横梁两端的分别设置有前座椅后横梁边梁，能够保证后横梁与门槛的连接刚度，前座椅后横梁边梁的拐角处无需开设缺口，能大大提高传力连续性，满足安全侧碰和柱碰所需截面力，并使座椅安装点处的刚度和强度得到增强。
本发明提供的新能源汽车前地板加强梁结构，创新性地提出了辊压件与横纵梁搭配方案设计，后横梁采用辊压件，前横梁采用普通冲压件，采用烧焊、焊点等多种搭配连接技术，使前地板总成的平台化使用性能更好，适用于多车型的多种配置，使产品更具市场竞争力。
本发明的设计布局合理，工艺合理，制造方便，适合大批量生产，最大限度地降低制造和生产成本。
附图说明
图1为本公开实施例提供的一种新能源汽车前地板加强梁结构的示意图；
图2为本公开实施例提供的一种新能源汽车前地板加强梁结构安装在车辆的前地板上的结构示意图；
图3为本公开实施例提供的后横梁和纵梁的结构示意图；
图4为本公开实施例提供的前横梁和纵梁的结构示意图；
图5为本公开实施例提供的后横梁的结构示意图；
图6为本公开实施例提供的后横梁的俯视图；
图7为本公开实施例提供的后横梁的局部结构示意图；
图8为本公开实施例提供的后横梁的截面图；
图9为本公开实施例提供的前座椅中间安装支架的示意图；
图10为本公开实施例提供的前座椅后横梁边梁的示意图；
图11为本公开实施例提供的L型连接纵梁的结构示意图。
图中：1、第一边梁；2、第二边梁；1-1、特征三角筋；1-2、门槛梁焊接边；1-3、边梁连接焊接边；1-4、第一塞焊孔；1-5、地板焊接边；2-1、对接孔；3、后横梁；3-1、后横梁截面；3-2、前座椅后横梁安装孔；3-3、座椅安装定位孔；4、前座椅中间安装支架；4-1、翻边结构；4-2、斜面凸筋；4-3、第二塞焊孔；4-4、冲压工艺所需定位孔；4-5、烧焊边界；4-6、凹陷部；5、L型连接纵梁；5-1、电池安装孔；5-2、凸台面；5-3、连接部；5-4、加强部；6、矩形加强纵梁；7、前横梁；7-1、凹台；8、连接边梁；9、安装加强支架；9-1、前排座椅安装孔。
具体实施方式
下面结合附图与实施例对本发明作进一步说明。
为使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开实施方式作进一步地详细描述。
除非另作定义，此处使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开专利申请说明书以及权利要求书中使用的“第一”、“第二”、“第三”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。“包括”或者“包含”等类似的词语意指出现在“包括”或者“包含”前面的元件或者物件涵盖出现在“包括”或者“包含”后面列举的元件或者物件及其等同，并不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”、“顶”、“底”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则所述相对位置关系也可能相应地改变。
图1为本公开实施例提供的一种新能源汽车前地板加强梁结构的示意图。在本公开的一些实施例中，如图1所示，新能源汽车前地板加强梁结构包括前横梁7和后横梁3，前横梁7和后横梁3之间通过多个纵梁连接；前横梁7的两端分别设置有与连接边梁8，前横梁7上设置有多个安装加强支架9，前横梁7通过连接边梁8与车辆的门槛相连；后横梁3的两端分别设置有前座椅后横梁边梁，后横梁3的中间位置设置有前座椅中间安装支架4；多个纵梁包括L型连接纵梁5和矩形加强纵梁6，L型连接纵梁5的一端与前横梁7重叠设置，矩形加强纵梁6的一端与后横梁3相连，矩形加强纵梁6的另一端与前横梁7相连。
本公开实施例提供的新能源汽车前地板加强梁结构中，前横梁7和后横梁3之间连接设置有多个纵梁，形成两横多纵的框架结构，横纵搭接的矩形框架结构能满足车辆的平台化要求，不仅能满足NVH性能、强度疲劳、安全、布置、工艺等的要求，还能最大限度减重，并降低模具数量，更好地节约成本。通过在前横梁7上设置安装加强支架9，在后横梁3上设置前座椅中间安装支架4，能够提高座椅与前横梁7和后横梁3的连接强度，提高座椅的舒适性。L型连接纵梁5与前横梁7重叠的结构能够增加L型连接纵梁5与前横梁7的连接面积，提高L型连接纵梁5与前横梁7的连接强度。
图2为本公开实施例提供的一种新能源汽车前地板加强梁结构安装在车辆的前地板上的结构示意图。可选地，如图2所示，横梁个数可以为2-4，纵梁个数可以为2-6个。示例性的，本公开实施例提供的新能源汽车前地板加强梁结构中的纵梁可以为四个，连接后的横梁和纵梁在前地板上形成两横四纵的框架结构，横梁和纵梁个数可以根据布置和性能需求增加或减少，也可以三横梁两纵梁，或者两横梁5纵梁设计。
图5为本公开实施例提供的后横梁的结构示意图。图10为本公开实施例提供的前座椅后横梁边梁的示意图。如图5和图10所示，前座椅后横梁边梁包括相互连接的第一边梁1和第二边梁2，第一边梁1覆盖后横梁3远离车辆的前地板的一侧以及后横梁3远离前横梁7的一侧，第二边2梁覆盖后横梁3远离车辆的前地板的一侧以及后横梁3靠近前横梁7的一侧，第一边梁1和第二边梁2上设置有门槛梁焊接边1-2、地板焊接边1-5和边梁连接焊接边1-3，门槛梁焊接边1-2与第一边梁1和第二边梁2的连接处设置有特征三角筋1-1，门槛梁焊接边1-2与前地板上的门槛梁通过焊接的方式连接。
通过将前座椅后横梁边梁分体设置，能够保证与门槛的连接刚度，拐角折弯处为了满足工艺不需要开缺口设计，能大大提高传力连续性，满足安全侧碰和柱碰所需截面力，并使座椅安装点处的刚度和强度得到增强。其中，第一边梁1和第二边梁2上的特征三角筋1-1应尽量接近第一边梁1和第二边梁2的上边缘，从而增加件本身的连接抗弯刚度。
另外，通过设置的门槛梁焊接边1-2实现与门槛梁连接，通过设置的地板焊接边1-5实现和前地板的连接，地板焊接边1-5与车辆的前地板连接处有一凸台可以更好匹配地板处的连接刚度。门槛梁焊接边1-2和地板焊接边1-5上可以设置有尽可能多的连接焊点；边梁连接焊接边1-3为第一边梁1和第二边梁2的焊接边，且边梁连接焊接边1-3与门槛连接处采用3层焊接，能更好地增加连接刚度，保证连接强度。
图7为本公开实施例提供的后横梁的局部结构示意图，在本公开的一些实施例中，如图5和7所示，第一边梁1和第二边梁2上还设置有第一塞焊孔1-4，本公开实施例不限制第一塞焊孔1-4的具体数量，但需同时满足装配所需的平面度设计，可以为4-15个。示例性的，第一边梁1和第二边梁2上共设置有十一个第一塞焊孔1-4，第一塞焊孔1-4主要用于将第一边梁1和第二边梁2分别与后横梁3连接，第二边梁2上设置有对接孔2-1，后横梁3上设置有座椅安装定位孔3-3，对接孔2-1与座椅安装定位孔3-3完全重合，用于安装座椅，同时避免第二边梁2的位置对座椅安装造成影响。
在本实施例中，后横梁3采用辊压一体成型。图6为本公开实施例提供的后横梁的俯视图，图8为本公开实施例提供的后横梁的截面图，如图6-8所示，辊压件的截面为口字型结构，具体的，辊压件的截面形状为两个或三个“口”字型，在加工过程中，可以先将板材部分弯折形成特征截面为小的口字型截面，通过烧焊焊接板材，然后再次对剩余部分的板材辊压后烧焊连接到小的口字型垂直焊接平面上，形成的两个封闭腔体能大大增加垂向抗弯刚度和轴向刚度，提高截面的轴向力，为满足安全侧柱碰提供较高强度保证。
进一步地，后横梁3上设置有前座椅后横梁安装孔3-2，前座椅后横梁安装孔3-2设置有四个，中间两个安装孔因远离门槛，刚度相对较弱，因此需要局部加强。同样地，座椅安装定位孔3-3也设置有四个。
图4为本公开实施例提供的前横梁和纵梁的结构示意图。如图1和4所示，前横梁7采用冲压成型，受限于成本和布置空间，前横梁7的截面高度高于后横梁3的截面高度约14mm，能较好弥补由于单腔体带来的抗弯刚度和承受截面轴向力的损失。前横梁7远离车辆的前地板的一面设置有凹台7-1，凹台7-1用于安装车辆的内饰件，且能增加后横梁3的局部刚度。
连接边梁8受限于成本和布置空间，连接边梁8与第一边梁1和第二边梁2的不同点在于，连接边梁8的拐角处存在不同尺寸的缺口设计，连接边梁8的结构简单，易于冲压成型，也能满足刚度强度、碰撞安全需求。
进一步地，前横梁7的每个安装加强支架9的凸台安装面上均设置有前排座椅安装孔9-1，安装加强支架9与前横梁上表面和侧边焊点连接形成封闭梁结构，大大增加了座椅安装点的局部刚度。
图3为本公开实施例提供的后横梁和纵梁的结构示意图。图9为本公开实施例提供的前座椅中间安装支架的示意图。参考图3和图9，前座椅中间安装支架4采用焊接件，前座椅中间安装支架4的边缘设置有翻边结构4-1，翻边结构4-1有利于增加前座椅中间安装支架4的抗弯抗扭刚度，例如，翻边结构4-1在车辆高度方向的弯折高度可以为4mm-12mm。前座椅中间安装支架4上设置有多个第二塞焊孔4-3，前座椅中间安装支架4通过第二塞焊孔4-3与后横梁3焊接相连。在本实施例的一种实施方式中，第二塞焊孔4-3设置有3-15个，第二塞焊孔4-3的具体数量不限，但需满足工艺所规定的平面度设计，且不在接触面处产生异响。
在本公开的一些实施例中，如图1和3所示，L型连接纵梁5包括连接部5-3和加强部5-4，加强部5-4的延伸方向平行于前横梁7的长度方向，连接部5-3的延伸方向垂直于前横梁7的长度方向，连接部5-3的一端与后横梁3相连，连接部5-3的另一端与加强部5-4的一端相连，加强部5-4与前横梁7靠近车辆的前地板的一面相连。加强部5-4与前横梁7层叠设置，从而增加L型连接纵梁5与前横梁7的连接面的面积，提高L型连接纵梁5与前横梁7的连接强度。
在本公开的一些实施例中，如图1和3所示，多个纵梁包括两个L型连接纵梁5，两个L型连接纵梁5关于垂直于后横梁3的长度方向的平面对称设置。
在本公开的一些实施例中，如图3和9所示，前座椅中间安装支架4靠近前横梁7的一侧向靠近车辆的前地板的方向弯折，并在垂直于后横梁3的长度方向的截面A-A的形状的截面为Z字型，前座椅中间安装支架4的至少部分与多个纵梁中的至少一个焊接连接。前座椅中间安装支架4靠近前横梁7的一侧先向靠近车辆的前地板的方向弯折，再向靠近前横梁7的方向弯折，从而使前座椅中间安装支架4适配后横梁3与多个纵梁的连接结构，增加前座椅中间安装支架4与后横梁3和多个纵梁的焊接面积，提高座椅安装的稳定性。
在本公开的一些实施例中，如图9所示，前座椅中间安装支架4在车辆的前地板的正投影为U型结构，U型结构的凹陷部4-6位于靠近前横梁7的一侧，使得前座椅中间安装支架4的两端具有Z型的弯折，从而使前座椅中间安装支架4的两端分别与两个L型连接纵梁5的连接部5-3相连。
可选地，如图9所示，前座椅中间安装支架4上设置有塞焊孔，前座椅中间安装支架4通过塞焊孔与连接部5-3焊接连接，以增加与纵梁的连接刚度。前座椅中间安装支架4靠近前横梁7的边缘为与L型连接纵梁5连接的烧焊边界4-5，烧焊边界4-5的长度应在满足工具操作空间的前提下，尽可能达到最大允许值，以保证L型连接纵梁5与后横梁3连接处刚度，增加传递路径。前座椅中间安装支架4的刚度是增加辊压件上中间座椅安装点刚度的关键加强件，座椅舒适性与车身连接点刚度和座椅本身的刚度有关，车身连接点较好的刚度是座椅舒适性的重要指标之一。
进一步地，前座椅中间安装支架上的U型结构与前座椅中间安装支架上其他部位的连接处设置有斜面凸筋4-2，斜面凸筋4-2左右对称设置有两个，大大增加了前座椅中间安装支架4的两个具有高度差平面的过渡刚度。
图11为本公开实施例提供的L型连接纵梁的结构示意图。参考图3、图4及图11，L型连接纵梁5中间为有一定高度凸起的L型截面，L型能将两处横梁3和7连接在一起，较矩形加强纵梁6更好增强后横梁7的抗弯刚度，有助于安全的侧碰和柱碰性能，且满足整车在不同电池大小和两驱、四驱车不同重量条件下的碰撞性能。
进一步地，L型连接纵梁5的连接部5-3处设置有局部凹陷面，局部凹陷面用于与车辆的地板面贴合。局部凹陷面上设置有电池安装孔5-1，连接部5-3通过电池安装孔5-1与电池固定连接。例如，局部凹陷为截面斜面而下与地板配合电池的安装孔特征，连接部5-3可以通过螺栓与电池固定连接。局部凹陷的平面特征与地板的面配合，大大保证了电池连接点的刚度，且电池连接处刚度较强，这就大大加强了地板下部的连接刚度，地板下部电池与地板上部的横梁与纵梁截面形成了高刚度的连接结构，有力保证后横梁3上前座椅后横梁安装孔3-2与中间座椅连接点处的刚度，而且利用电池与纵梁的配合也大大节省了平台重量和成本的增加。
可选地，如图3和图4所示，多个纵梁包括两个矩形加强纵梁6，两个矩形加强纵梁6关于垂直于后横梁3的长度方向的平面对称设置，两个L型连接纵梁5位于两个矩形加强纵梁6之间。受限于装配空间与工艺焊点连接，不需要将所有纵梁均设置成L型结构，矩形加强纵梁6的四周与前横梁、后横梁以及地板封闭焊接，不仅增加横梁3和7的抗弯抗扭刚度，且将地板区域隔开，能大大增加地板薄板面板刚度。
在本公开的一些实施例中，参见图3，两个L型连接纵梁5的加强部5-4分别向相背的方向延伸，矩形加强纵梁6位于加强部5-4与后横梁3之间，并且矩形加强纵梁6的另一端分别与加强部5-4和前横梁7相连。具体地，矩形加强纵梁6的另一端部分层叠于前横梁7与加强部5-4之间，且矩形加强纵梁6的另一端与前横梁7和加强部5-4分别焊接连接。矩形加强纵梁6与前横梁7和L型连接纵梁5的连接结构更为牢固，有利于增加横梁和纵梁形成的框架结构的整体强度。
可选地，如图3所示，L型连接纵梁5的加强部5-4设置有凸台面5-2，凸台面5-2向靠近前横梁7的方向凸出，凸台面5-2用于增加加强部5-4的自身刚度，从而提高前横梁7的连接强度。
本实施例提供的新能源汽车前地板加强梁结构的安装过程如下：
将后横梁3固定安装在车辆的前地板上，并将后横梁3的两端分别通过前座椅后横梁边梁与前地板的左右门槛相连；
将L型连接纵梁5的一端和矩形加强纵梁6的一端与后横梁3连接，并与前地板固定连接；
将L型连接纵梁5的另一端和矩形加强纵梁6的另一端与前横梁7连接，并将前横梁7与地板固定连接；
将前横梁7的两端分别通过连接边梁8与前地板的左右门槛相连；
在后横梁3的中间位置上安装前座椅中间安装支架4，在前横梁7上安装多个安装加强支架9。
本公开实施例提供的新能源汽车前地板加强梁结构中，提供了一种辊压件与横纵梁搭配方案设计，采用烧焊、焊点等多种搭配连接技术，使前地板总成的平台化使用性能更好，通过在前横梁上设置安装加强支架9，在后横梁上设置前座椅中间安装支架4，能够提高座椅与车身连接点的强度，提高座椅的舒适性。
在本公开的一些实施例中，还提供了一种新能源汽车前地板加强梁结构的安装方法，该方法用于安装上述任一实施例中涉及的新能源汽车前地板加强梁结构，包括以下步骤：
将后横梁3固定安装在前地板上，并将后横梁3的两端分别通过前座椅后横梁边梁与前地板的左右门槛相连；
将L型连接纵梁5的一端和矩形加强纵梁6的一端与后横梁3连接，并与前地板固定；
将L型连接纵梁5的另一端和矩形加强纵梁6的另一端与前横梁7连接，并将前横梁7与地板固定；
将前横梁7的两端分别通过边梁8与前地板的左右门槛相连；
在后横梁3的中间位置上安装前座椅中间安装支架4，在前横梁7上安装多个安装加强支架9。
本公开的各种附加示例性实施例可以通过以下示例来描述。
示例1.一种新能源汽车前地板加强梁结构，包括前横梁7和后横梁3，所述前横梁7和后横梁3之间通过多个纵梁连接；所述前横梁7的两端分别设置有与门槛相连接的连接边梁8，所述前横梁7上设置有多个安装加强支架9；所述后横梁3的两端分别设置有前座椅后横梁边梁，后横梁3的中间位置设置有前座椅中间安装支架4；所述纵梁包括L型连接纵梁5和矩形加强纵梁6，所述矩形加强纵梁6位于L型连接纵梁5内部。
示例2.根据示例1所述的新能源汽车前地板加强梁结构，其中，所述前座椅后横梁边梁包括前后连接的第一边梁1和第二边梁2，所述第一边梁1和第二边梁2上设置有门槛梁焊接边1-2、地板焊接边1-5和边梁连接焊接边1-3。
示例3.根据示例2所述的新能源汽车前地板加强梁结构，其中，所述门槛梁焊接边1-2与边梁的连接处设置有特征三角筋1-1，所述门槛梁焊接边1-2将边梁与前地板上的门槛梁通过焊接的方式进行连接。
示例4.根据示例1所述的新能源汽车前地板加强梁结构，其中，所述后横梁3采用辊压件，所述辊压件的截面为口字型结构，所述后横梁3上设置有前座椅后横梁安装孔3-2和座椅安装定位孔3-3。
示例5.根据示例1所述的新能源汽车前地板加强梁结构，其中，所述前横梁7采用冲压件，前横梁7的每个安装加强支架9的凸台安装面上均设置有前排座椅前排安装孔9-1。
示例6.根据示例1所述的新能源汽车前地板加强梁结构，其中，所述前座椅中间安装支架4采用焊接件，围绕前座椅中间安装支架4的一圈设置有翻边结构4-1，所述前座椅中间安装支架4上设置有多个第二塞焊孔4-3，通过第二塞焊孔4-3与后横梁3焊接相连。
示例7.根据示例6所述的新能源汽车前地板加强梁结构，其中，所述前座椅中间安装支架4的截面为Z字型，前座椅中间安装支架4的一端为U型结构，U型结构上设置有塞焊孔，通过塞焊孔与纵梁连接，U型结构前部的边作为与纵梁连接的烧焊边界4-5。
示例8.根据示例1所述的新能源汽车前地板加强梁结构，其中，所述L型连接纵梁5设置有两个，两个L型连接纵梁5左右对称设置，L型连接纵梁5连接前横梁7和后横梁3的中间位置设置有局部凹陷面，所述局部凹陷面与前地板面贴合，局部凹陷面上设置有电池安装孔5-1，通过电池安装孔5-1连接电池。
示例9.根据示例1所述的新能源汽车前地板加强梁结构，其中，所述矩形加强纵梁6设置有两个，两个矩形加强纵梁6左右对称设置，矩形加强纵梁6的四周与前横梁7、后横梁3以及前地板封闭焊接。
示例10.一种根据示例1所述的新能源汽车前地板加强梁结构的安装方法，其中，包括以下步骤：
将后横梁3固定安装在前地板上，并将后横梁3的两端分别通过前座椅后横梁边梁与前地板的左右门槛相连；
将L型连接纵梁5和矩形加强纵梁6与后横梁3连接，并与前地板固定；
将L型连接纵梁5和矩形加强纵梁6与前横梁7连接，并将前横梁7与地板固定；
将前横梁7的两端分别通过边梁与前地板的左右门槛相连；
在后横梁3的中间位置上安装前座椅中间安装支架4，在前横梁7上安装多个安装加强支架9。
本实施例提供的新能源汽车前地板加强梁结构的安装方法，依次后横梁、纵梁和前横梁，然后安装前座椅中间安装支架和多个安装加强支架，各个结构之间按照搭接顺序依次安装，提高了该加强梁结构的安装效率及安装效果。
以上，并非对本公开作任何形式上的限制，虽然本公开已通过实施例揭露如上，然而并非用以限定本公开，任何熟悉本专业的技术人员，在不脱离本公开技术方案范围内，当可利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本公开技术方案的内容，依据本公开的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本公开技术方案的范围内。

Claims (15)

  1. 一种新能源汽车前地板加强梁结构，其特征在于，包括前横梁(7)和后横梁(3)，所述前横梁(7)和后横梁(3)之间通过多个纵梁连接；所述前横梁(7)的两端分别设置有连接边梁(8)，所述前横梁(7)上设置有多个安装加强支架(9)，所述前横梁(7)通过所述连接边梁(8)与车辆的门槛相连；所述后横梁(3)的两端分别设置有前座椅后横梁边梁，所述后横梁(3)的中间位置设置有前座椅中间安装支架(4)；所述多个纵梁9包括L型连接纵梁(5)和矩形加强纵梁(6)，所述L型连接纵梁(5)的一端与所述前横梁(7)重叠设置，所述矩形加强纵梁(6)的一端与所述后横梁(3)相连，所述矩形加强纵梁(6)的另一端与所述前横梁(7)相连。
  2. 如权利要求1所述的新能源汽车前地板加强梁结构，其特征在于，所述前座椅后横梁边梁包括相互连接的第一边梁(1)和第二边梁(2)，所述第一边梁(1)覆盖所述后横梁(3)远离车辆的前地板的一侧以及所述后横梁(3)远离所述前横梁(7)的一侧，所述第二边梁(2)覆盖所述后横梁(3)远离车辆的前地板的一侧以及所述后横梁(3)靠近所述前横梁(7)的一侧，所述第一边梁(1)和所述第二边梁(2)上设置有门槛梁焊接边(1-2)、地板焊接边(1-5)和边梁连接焊接边(1-3)。
  3. 如权利要求2所述的新能源汽车前地板加强梁结构，其特征在于，所述门槛梁焊接边(1-2)与所述第一边梁(1)和所述第二边梁(2)的连接处设置有特征三角筋(1-1)，所述门槛梁焊接边(1-2)与前地板上的门槛梁通过焊接的方式连接。
  4. 如权利要求1-3任一项所述的新能源汽车前地板加强梁结构，其特征在于，所述L型连接纵梁(5)包括连接部(5-3)和加强部(5-4)，所述加强部(5-4)的延伸方向平行于所述前横梁(7)，所述连接部(5-3)的延伸方向垂直于所述前横梁(7)，所述连接部(5-3)的一端与所述后横梁(3)相连，所述连接部(5-3)的另一端与所述加强部(5-4)的一端相连，所述加强部(5-4)与所述前横梁(7)靠近车辆的前地板的一面相连。
  5. 如权利要求1所述的新能源汽车前地板加强梁结构，其特征在于，所述后横梁(3)采用辊压成型，所述后横梁(3)的截面为口字型结构，所述后横梁(3)上设置有前座椅后横梁安装孔(3-2)和座椅安装定位孔(3-3)。
  6. 如权利要求1所述的新能源汽车前地板加强梁结构，其特征在于，所述前横梁(7)采用冲压成型，所述前横梁(7)的每个安装加强支架(9)的凸台安装面上均设置有前排座椅安装孔(9-1)。
  7. 如权利要求4所述的新能源汽车前地板加强梁结构，其特征在于，所述多个纵梁包括两个所述L型连接纵梁(5)，两个所述L型连接纵梁(5)关于垂直于所述后横梁(3)的长度方向的平面对称设置。
  8. 如权利要求7所述的新能源汽车前地板加强梁结构，其特征在于，所述前座椅中间安装支架(4)采用焊接件，所述前座椅中间安装支架(4)的边缘设置有翻边结构(4-1)，所述前座椅中间安装支架(4)上设置有多个第二塞焊孔(4-3)，所述前座椅中间安装支架(4)通过所述第二塞焊孔(4-3)与所述后横梁(3)焊接相连。
  9. 如权利要求8所述的新能源汽车前地板加强梁结构，其特征在于，所述前座椅中间安装支架(4)靠近所述前横梁(7)的一侧向靠近车辆的前地板的方向弯折，并在垂直于所述后横梁(3)的长度方向的截面的形状为Z字型，所述前座椅中间安装支架(4)的至少部分与所述多个纵梁中的至少一个焊接连接。
  10. 如权利要求9所述的新能源汽车前地板加强梁结构，其特征在于，所述前座椅中间安装支架(4)在车辆的前地板上的正投影为U型结构，所述U型结构的凹陷部(4-6)位于靠近所述前横梁(7)的一侧。
  11. 如权利要求10所述的新能源汽车前地板加强梁结构，其特征在于，所述前座椅中间安装支架(4)上设置有塞焊孔，所述前座椅中间安装支架(4)通过所述塞焊孔与所述连接部(5-3)焊接连接，所述前座椅中间安装支架(4)靠近所述前横梁(7)的边缘为与所述L型连接纵梁(5)连接的烧焊边界(4-5)。
  12. 如权利要求4所述的新能源汽车前地板加强梁结构，其特征在于，所述连接部(5-3)的中间位置设置有局部凹陷面，所述局部凹陷面用于与车辆的前地板面贴合，所述局部凹陷面上设置有电池安装孔(5-1)，所述连接部(5-3)通过所述电池安装孔(5-1)与电池固定连接。
  13. 如权利要求12所述的新能源汽车前地板加强梁结构，其特征在于，所述多个纵梁包括两个所述矩形加强纵梁(6)，两个所述矩形加强纵梁(6)关于垂直于所述后横梁(3)的长度方向的平面对称设置，两个所述L型连接纵梁(5)位于两个所述矩形加强纵梁(6)之间。
  14. 如权利要求13所述的新能源汽车前地板加强梁结构，其特征在于，两个所述L型连接纵梁(5)的加强部(5-4)分别向相背的方向延伸，所述矩形加强纵梁(6)位于所述加强部(5-4)与所述后横梁(3)之间，并且所述矩形加强纵梁(6)的另一端分别与所述加强部(5-4)和所述前横梁(7)相连。
  15. 一种如权利要求1-14任一项所述的新能源汽车前地板加强梁结构的安装方法，其特征在于，包括以下步骤：
    将所述后横梁(3)固定安装在车辆的前地板上，并将所述后横梁(3)的两端分别通过所述前座椅后横梁边梁与所述前地板的左右门槛相连；
    将所述L型连接纵梁(5)的一端和所述矩形加强纵梁(6)的一端与所述后横梁(3)连接，并与所述前地板固定连接；
    将所述L型连接纵梁(5)的另一端和所述矩形加强纵梁(6)的另一端与所述前横梁(7)连接，并将所述前横梁(7)与所述地板固定连接；
    将所述前横梁(7)的两端分别通过所述连接边梁(8)与所述车辆的门槛相连；
    在所述后横梁(3)的中间位置上安装所述前座椅中间安装支架(4)，在所述前横梁(7)上安装多个所述安装加强支架(9)。
PCT/CN2025/092569 2024-07-01 2025-04-30 一种新能源汽车前地板加强梁结构及安装方法 Pending WO2026007526A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP25770224.1A EP4699909A1 (en) 2024-07-01 2025-04-30 Reinforcing beam structure for front floor of new energy vehicle, and mounting method
IL323660A IL323660A (en) 2024-07-01 2025-04-30 Front floor reinforcement beam structure for new-energy vehicle and mounting method
MX2025012038A MX2025012038A (es) 2024-07-01 2025-04-30 Estructura de viga de refuerzo del piso delantero para vehiculo de nueva energia y metodo de montaje
KR1020257038125A KR20260005927A (ko) 2024-07-01 2025-04-30 신에너지 차량용 전면 바닥 보강 빔 구조 및 장착 방법

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202410871893.0A CN118991942B (zh) 2024-07-01 2024-07-01 一种新能源汽车前地板加强梁结构及安装方法
CN202410871893.0 2024-07-01

Publications (1)

Publication Number Publication Date
WO2026007526A1 true WO2026007526A1 (zh) 2026-01-08

Family

ID=93477028

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2025/092569 Pending WO2026007526A1 (zh) 2024-07-01 2025-04-30 一种新能源汽车前地板加强梁结构及安装方法

Country Status (6)

Country Link
EP (1) EP4699909A1 (zh)
KR (1) KR20260005927A (zh)
CN (1) CN118991942B (zh)
IL (1) IL323660A (zh)
MX (1) MX2025012038A (zh)
WO (1) WO2026007526A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118991942B (zh) * 2024-07-01 2025-10-31 奇瑞汽车股份有限公司 一种新能源汽车前地板加强梁结构及安装方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130257097A1 (en) * 2012-03-29 2013-10-03 Honda Motor Co., Ltd. Vehicle body floor structure for automobile
CN204150122U (zh) * 2014-10-11 2015-02-11 重庆长安汽车股份有限公司 一种汽车门槛梁总成结构
CN110316259A (zh) * 2018-03-30 2019-10-11 比亚迪股份有限公司 前地板总成及汽车
CN211893420U (zh) * 2019-12-30 2020-11-10 上汽通用五菱汽车股份有限公司 一种后地板前横梁接头结构
CN218316349U (zh) * 2022-09-29 2023-01-17 长城汽车股份有限公司 汽车前座椅安装结构及汽车
CN218858546U (zh) * 2022-11-30 2023-04-14 长城汽车股份有限公司 汽车前地板总成及汽车
CN118991942A (zh) * 2024-07-01 2024-11-22 奇瑞汽车股份有限公司 一种新能源汽车前地板加强梁结构及安装方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109204544B (zh) * 2017-06-30 2020-11-06 比亚迪股份有限公司 车身结构和车辆
CN111017041B (zh) * 2019-12-31 2022-01-21 东风汽车集团有限公司 一种基于纯电动汽车前地板加强横梁结构的车身安装结构
CN212950857U (zh) * 2020-05-29 2021-04-13 摩登汽车有限公司 电动汽车的前地板
CN113401228A (zh) * 2021-07-23 2021-09-17 常熟龙创汽车技术有限公司 一种电动汽车平台化通用型前地板总成
CN217705959U (zh) * 2022-06-24 2022-11-01 重庆长安汽车股份有限公司 新能源车门槛边梁总成及车辆

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130257097A1 (en) * 2012-03-29 2013-10-03 Honda Motor Co., Ltd. Vehicle body floor structure for automobile
CN204150122U (zh) * 2014-10-11 2015-02-11 重庆长安汽车股份有限公司 一种汽车门槛梁总成结构
CN110316259A (zh) * 2018-03-30 2019-10-11 比亚迪股份有限公司 前地板总成及汽车
CN211893420U (zh) * 2019-12-30 2020-11-10 上汽通用五菱汽车股份有限公司 一种后地板前横梁接头结构
CN218316349U (zh) * 2022-09-29 2023-01-17 长城汽车股份有限公司 汽车前座椅安装结构及汽车
CN218858546U (zh) * 2022-11-30 2023-04-14 长城汽车股份有限公司 汽车前地板总成及汽车
CN118991942A (zh) * 2024-07-01 2024-11-22 奇瑞汽车股份有限公司 一种新能源汽车前地板加强梁结构及安装方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4699909A1

Also Published As

Publication number Publication date
CN118991942B (zh) 2025-10-31
KR20260005927A (ko) 2026-01-12
CN118991942A (zh) 2024-11-22
MX2025012038A (es) 2026-02-03
IL323660A (en) 2026-01-01
EP4699909A1 (en) 2026-02-25

Similar Documents

Publication Publication Date Title
CN110329362A (zh) 车身结构及汽车
US11192588B2 (en) Lower vehicle-body structure of electric vehicle
CN113147904B (zh) 一种两门电动车门环加强框组件
JP2000318653A (ja) 自動車のシルサイド部補強構造
CN215883294U (zh) 与车身集成的电池包壳体结构
CN112896330A (zh) 一种纯电动车钢制车身
US20210061365A1 (en) Front vehicle-body structure of vehicle
CN115402424B (zh) 一种地板骨架总成、地板总成以及车辆
WO2026007526A1 (zh) 一种新能源汽车前地板加强梁结构及安装方法
CN114919666A (zh) 车辆及其车身前机舱架构
WO2025092862A1 (zh) 车辆
CN210284380U (zh) 一种新能源汽车前围板横梁及中通道结构
CN112441134A (zh) 一种车辆门槛的安装方法及车辆门槛结构
CN212890610U (zh) 电动车下车体结构
WO2025092861A1 (zh) 车辆
WO2025087403A9 (zh) 座舱框架和具有其的车辆
WO2025112758A1 (zh) 一种车身框架总成及车辆
CN219382613U (zh) 一种舱边梁前段总成以及汽车
CN219134313U (zh) 后顶横梁安装结构及包括该后顶横梁安装结构的车辆
CN206664336U (zh) 前排座椅安装横梁支架和电动汽车
CN212243575U (zh) 一种后围板总成结构及汽车
CN110065509B (zh) 车体门角结构、车体及轨道列车
CN115158481A (zh) 一种后裙板总成结构
CN120039316B (zh) 车身地板总成及车辆
CN223116453U (zh) 一种汽车门槛及其加强梁

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: MX/A/2025/012038

Country of ref document: MX

ENP Entry into the national phase

Ref document number: 2025770224

Country of ref document: EP

Effective date: 20250929

WWP Wipo information: published in national office

Ref document number: 323660

Country of ref document: IL

ENP Entry into the national phase

Ref document number: 2025770224

Country of ref document: EP

Effective date: 20250929

ENP Entry into the national phase

Ref document number: 2025770224

Country of ref document: EP

Effective date: 20250929

ENP Entry into the national phase

Ref document number: 2025770224

Country of ref document: EP

Effective date: 20250929

WWP Wipo information: published in national office

Ref document number: MX/A/2025/012038

Country of ref document: MX

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 25770224

Country of ref document: EP

Kind code of ref document: A1

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112025022660

Country of ref document: BR