Front cabin structure and vehicle

Abstract

The present invention provides a front cabin structure and a vehicle. The front cabin structure of the present invention includes front cabin longitudinal beams arranged on the left and right sides, and front shock towers connected to the front cabin longitudinal beams on each side; a beam structure connected in a ring is provided between the front shock towers on both sides, the beam structure includes a shock tower connecting beam and a motor rear mounting beam arranged relatively up and down, and connecting beams arranged on the left and right sides; the shock tower connecting beam is connected between the tops of the front shock towers on both sides, the motor rear mounting beam is connected between the front cabin longitudinal beams on both sides, and the connecting beams on each side are connected to the front shock tower on the same side, and connect the shock tower connecting beam and the motor rear mounting beam together. The front cabin structure of the present invention can not only increase the stiffness of the front shock tower positions on each side, but also increase the Y-direction support stiffness between the front shock towers on both sides, and form a force transmission channel between the front shock towers on both sides and the front cabin longitudinal beam, which is conducive to the transmission and dispersion of collision force.

Description

Technical Field

[0001] This invention relates to the field of vehicle component technology, and in particular to a front engine compartment structure. Furthermore, this invention also relates to a vehicle equipped with this front engine compartment structure. Background Technology

[0002] Currently, as automotive design moves towards high-end and electric vehicles, improving the NVH (Noise, Vibration, Harshness) and safety performance of vehicles has become a key research direction in vehicle design and development.

[0003] As the main structure at the front of the vehicle body, the front engine compartment's force transmission effect directly impacts the vehicle's collision safety. Existing front engine compartment technologies include longitudinal beams and wheel arch side beams located on the left and right sides, as well as front shock absorber towers mounted on the longitudinal beams of each side and connected to the corresponding wheel arch side beams. The independent operation of the left and right front shock absorber towers not only results in relatively low stiffness at each tower but also leads to a small contribution to the transmission of collision forces. This hinders the dispersion and transmission of collision forces at the towers, thus affecting vehicle safety.

[0004] Furthermore, in this conventional front engine compartment structure, during a frontal collision, components such as the charger and drive motor from the powertrain system can intrude into the front bulkhead, compromising the safety of the passenger compartment. Currently, reinforcing the passenger compartment is commonly used to improve its resistance to collision forces, but this solution increases the weight of the passenger compartment, thus hindering vehicle weight reduction. Summary of the Invention

[0005] In view of this, the present invention aims to propose a front engine compartment structure to enhance the stiffness of the front shock absorber towers on each side and to improve the vehicle's collision safety.

[0006] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0007] A forward nacelle structure includes forward nacelle longitudinal beams disposed on the left and right sides, and forward shock absorber towers connected to the forward nacelle longitudinal beams on each side.

[0008] A ring-shaped beam structure is provided between the front shock absorber towers on both sides. The beam structure includes shock absorber tower connecting beams and motor rear mounting beams arranged opposite each other, as well as connecting beams on the left and right sides.

[0009] The shock absorber tower connecting beam is connected between the tops of the front shock absorbers on both sides, the motor rear mounting beam is connected between the longitudinal beams of the front engine compartment on both sides, and the connecting beams on each side are connected to the front shock absorbers on the same side, thus connecting the shock absorber tower connecting beam and the motor rear mounting beam together.

[0010] Furthermore, the rear-mounted crossbeam of the motor includes an upper crossbeam and a lower crossbeam of the motor that are fastened together; both the lower crossbeam and the upper crossbeam of the motor are connected to the longitudinal beams of the front engine compartment on both sides, and the left and right ends of the upper crossbeam of the motor are respectively connected by the corresponding connecting beam and the shock absorber tower connecting crossbeam.

[0011] Furthermore, the shock absorber tower connecting crossbeam includes a shock absorber tower connecting upper crossbeam and a shock absorber tower connecting lower crossbeam that are fastened together; the shock absorber tower connecting upper crossbeam is connected between the tops of the two front shock absorber towers on both sides, and the left and right ends of the shock absorber tower connecting lower crossbeam are respectively connected to the corresponding connecting beam and the motor upper crossbeam.

[0012] Furthermore, the left and right ends of the shock absorber tower connecting beam are respectively provided with upper connecting arms, and the left and right ends of the motor rear mounting beam are respectively provided with lower connecting arms; the upper connecting arms and the lower connecting arms on each side are connected to the front shock absorber tower on the same side, and the connecting beam on each side is formed by connecting the upper connecting arms and the lower connecting arms on the same side.

[0013] Furthermore, a connecting beam cavity is formed between the upper crossbeam and the lower crossbeam of the shock absorber tower, and a motor crossbeam cavity is formed between the upper crossbeam and the lower crossbeam of the motor; a connecting beam cavity is formed between the connecting beams on each side and the front shock absorber tower on the same side, and the connecting beam cavities on both sides connect the connecting beam cavity and the motor crossbeam cavity, forming a ring-shaped cavity structure within the beam structure.

[0014] Furthermore, the upper crossbeam of the motor is provided with a motor mounting bracket, and the motor mounting bracket is a plurality of brackets spaced apart along the left-right direction of the vehicle on the upper crossbeam of the motor; and / or, the upper crossbeam of the motor is provided with a battery bracket, and the battery bracket is located near one side of the longitudinal beam of the front engine compartment.

[0015] Furthermore, the upper crossbeam of the motor is provided with an upper blocking part that protrudes along the vertical direction of the vehicle, and the upper blocking part is used to restrict the charger mounted on the rear mounting crossbeam of the motor from moving backward; and / or, the lower crossbeam of the motor is provided with a lower blocking part that protrudes downward along the vertical direction of the vehicle, and the lower blocking part is used to restrict the drive motor mounted on the front subframe from moving backward.

[0016] Furthermore, the upper blocking part includes an upper protrusion integrally formed on the upper crossbeam of the motor; the lower blocking part includes a lower protrusion integrally formed on the lower crossbeam of the motor.

[0017] Furthermore, an upper energy-absorbing structure is integrally formed on the upper crossbeam of the motor, located on one side of the upper boss, and / or a lower energy-absorbing structure is integrally formed on the lower crossbeam of the motor, located on one side of the lower boss; wherein the cross-sections of the upper energy-absorbing structure and the lower energy-absorbing structure are both stepped.

[0018] Furthermore, both sides of the front engine compartment longitudinal beams include an inner longitudinal beam plate and an outer longitudinal beam plate that are fastened together; there is an upper overlapping stop at the top of the front engine compartment longitudinal beam and a lower overlapping stop at the bottom of the front engine compartment longitudinal beam between the inner longitudinal beam plate and the outer longitudinal beam plate; in the left-right direction of the vehicle, the lower overlapping stop is located on the side of the front engine compartment longitudinal beam closer to the outside of the vehicle, and the upper overlapping stop has a front section located on the side of the front engine compartment longitudinal beam closer to the outside of the vehicle and a rear section located on the side of the front engine compartment longitudinal beam closer to the inside of the vehicle.

[0019] Furthermore, the top of the inner plate of the longitudinal beam is provided with a motor front mounting beam mounting part located on one side of the front section of the upper overlapping stop; the motor front mounting beam mounting parts on each side are all located near the dividing point between the front section of the upper overlapping stop and the rear section of the upper overlapping stop on the same side, and a motor front mounting beam is connected between the motor front mounting beam mounting parts on both sides.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] The front engine compartment structure described in this invention, by setting an annular beam structure between the two front shock absorber towers, not only increases the stiffness of the front shock absorber towers on each side, but also utilizes the high strength of the annular structure to increase the Y-direction (left-right direction of the vehicle) support stiffness between the two front shock absorber towers, and forms a force transmission channel between the two front shock absorber towers and the longitudinal beam of the front engine compartment. This is beneficial to improving the overall stiffness of the front engine compartment, facilitating the transmission and dispersion of collision forces in the front engine compartment, and helping to improve the safety of the entire vehicle.

[0022] Furthermore, the rear motor mounting beam consists of an interlocking upper and lower motor crossbeam, ensuring its structural strength and facilitating its placement between the longitudinal beams of the front engine compartment on both sides, as well as its connection to the damper tower connecting beam. The damper tower connecting beam consists of an interlocking upper and lower damper tower connecting beam, ensuring its structural strength and facilitating its placement between the front damper towers on both sides, as well as its connection to the rear motor mounting beam. By incorporating upper and lower connecting arms, and connecting the beam to these arms, the connection effect between the damper tower connecting beam and the rear motor mounting beam is ensured.

[0023] A ring-shaped cavity structure is formed within the beam structure. The high strength of this cavity structure increases the rigidity of the beam structure, enhancing its reinforcement effect in the forward engine compartment. Motor mounting brackets and battery brackets are installed on the upper motor crossbeam, facilitating the installation of components such as the motor and battery. An upper blocking section is installed on the upper motor crossbeam, and a lower blocking section is installed on the lower motor crossbeam. These components prevent the charger and drive motor from moving backward during a collision, effectively reducing their intrusion into the front bulkhead, maintaining the integrity of the passenger compartment, and minimizing injury to occupants. The upper and lower blocking sections are integrally molded bosses, resulting in a simple structure that is easy to form while ensuring structural strength and the blocking effect of each component.

[0024] Furthermore, by further incorporating a stepped cross-section energy-absorbing structure, energy from the charger and drive motor can be absorbed during a collision, effectively reducing the intrusion of the charger and drive motor into the front bulkhead and ensuring passenger compartment safety. The upper and lower overlapping stops on the front engine compartment longitudinal beams accommodate the double wishbone suspension motion envelope and the motor crossbeam assembly, meeting the requirements for double wishbone front suspension and contributing to improved vehicle driving performance. A motor front mounting crossbeam mounting section is located on the top of the longitudinal beam inner plate, situated on one side of the front section of the upper overlapping stop. Based on the design of the front section of the upper overlapping stop, the cross-section of the longitudinal beam inner plate is fully utilized, facilitating the arrangement of the motor front mounting crossbeam within the vehicle body.

[0025] Another object of the present invention is to provide a vehicle having a front engine compartment structure as described above.

[0026] The vehicle described in this invention has the same beneficial effects as the aforementioned front engine compartment structure, and will not be repeated here. Attached Figure Description

[0027] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the forward cabin structure described in an embodiment of the present invention from one perspective;

[0029] Figure 2 This is a schematic diagram of the forward cabin structure described in an embodiment of the present invention from another perspective;

[0030] Figure 3 This is a schematic diagram of the connection between the beam structure and the front shock absorber tower according to an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the beam structure described in an embodiment of the present invention;

[0032] Figure 5 This is a top-to-bottom disassembly diagram of the beam structure described in an embodiment of the present invention;

[0033] Figure 6 for Figure 4 The front view in the middle;

[0034] Figure 7 for Figure 6 Sectional view along direction AA in the middle;

[0035] Figure 8 for Figure 6 Cross-sectional view of the crossbeam mounted behind the motor;

[0036] Figure 9 This is a partial structural diagram of the forward cabin structure described in an embodiment of the present invention;

[0037] Figure 10 This is a schematic diagram of the forward engine compartment longitudinal beam as described in an embodiment of the present invention from a first-view perspective;

[0038] Figure 11 This is a schematic diagram of the forward engine compartment longitudinal beam described in an embodiment of the present invention from a second perspective;

[0039] Figure 12 This is a structural schematic diagram of the forward engine compartment longitudinal beam described in an embodiment of the present invention from a third-person perspective;

[0040] Figure 13 This is a schematic diagram of the longitudinal beam inner plate of the embodiment of the present invention from one perspective;

[0041] Figure 14 This is a schematic diagram of the inner plate of the longitudinal beam described in an embodiment of the present invention from another perspective;

[0042] Figure 15 This is a schematic diagram of the structure of the outer plate of the longitudinal beam according to an embodiment of the present invention;

[0043] Figure 16 This is a schematic diagram of the reinforcing plate and nut plate described in an embodiment of the present invention from one perspective;

[0044] Figure 17 This is a schematic diagram of the reinforcing plate and nut plate described in an embodiment of the present invention from another perspective;

[0045] Figure 18 This is a schematic diagram of the structure of the reinforcing plate according to an embodiment of the present invention.

[0046] Explanation of reference numerals in the attached figures:

[0047] 1. Front engine compartment longitudinal beam; 2. Front shock absorber tower; 3. Beam structure; 4. Charger; 5. Drive motor; 6. Motor front mounting beam; 7. Front wheel arch side beam; 8. Front bulkhead; 9. Front subframe;

[0048] 101. Inner plate of longitudinal beam; 102. Outer plate of longitudinal beam; 103. Upper lap joint stop; 1031. Front section of upper lap joint stop; 1032. Rear section of upper lap joint stop; 104. Lower lap joint stop; 105. Recessed part; 106. Inner plate corner reinforcement; 107. Outer plate corner reinforcement; 108. Nut plate; 1081. Base plate; 1082. Threaded sleeve; 109. Reinforcing plate; 1091. Groove; 1092. Connecting flange; 110. Extension beam; 111. Inner lower stop flange; 112. Inner upper stop flange; 113. Outer upper stop flange; 114. Outer lower stop flange;

[0049] 301. Vibration damper tower connecting crossbeam; 3011. Vibration damper tower connecting upper crossbeam; 3012. Vibration damper tower connecting lower crossbeam; 3013. Raised portion; 302. Motor rear mounting crossbeam; 3021. Motor lower crossbeam; 3022. Motor upper crossbeam; 3023. Upper boss; 3024. Lower boss; 3025. Upper energy-absorbing structure; 3026. Lower energy-absorbing structure; 3027. Recessed portion; 303. Connecting beam; 3031. Upper connecting arm; 3032. Lower connecting arm; 304. Motor mounting bracket; 305. Battery bracket. Detailed Implementation

[0050] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0051] In the description of this invention, it should be noted that the use of terms such as "upper," "lower," "inner," and "outer," indicating orientation or positional relationship, is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the use of terms such as "first" and "second" is also for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0052] Furthermore, in the description of this invention, unless otherwise explicitly specified, the connecting structures between mating components can be conventional in the art. Moreover, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention in light of the specific circumstances.

[0053] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0054] Example 1

[0055] This embodiment relates to a front engine compartment structure to enhance the rigidity of the front shock absorber towers 2 on each side and to improve the vehicle's collision safety.

[0056] In terms of overall structure, combined Figures 1 to 3 As shown, the forward nacelle structure includes forward nacelle longitudinal beams 1 located on the left and right sides, and forward shock absorber towers 2 connected to the forward nacelle longitudinal beams 1 on each side. A beam structure 3 connecting the two forward shock absorber towers 2 in a ring is provided between them. The beam structure 3 includes shock absorber tower connecting crossbeams 301 and motor rear mounting crossbeams 302 arranged vertically opposite each other, as well as connecting beams 303 located on the left and right sides.

[0057] Among them, the shock absorber tower connecting beam 301 is connected between the tops of the two front shock absorber towers 2, the motor rear mounting beam 302 is connected between the two front engine compartment longitudinal beams 1, and the connecting beams 303 on each side are connected to the front shock absorber tower 2 on the same side, and the shock absorber tower connecting beam 301 and the motor rear mounting beam 302 are connected together.

[0058] For detailed structure, refer to Figure 1 As shown, the bottom of each front shock absorber tower 2 is connected between the longitudinal beam 1 of the front engine compartment and the front wheel arch side beam 7 on the same side. The front end of each front wheel arch side beam 7 is connected to the front end of the longitudinal beam 1 of the front engine compartment on the same side, and the front wheel arch side beam 7, the longitudinal beam 1 of the front engine compartment and the front shock absorber tower 2 on the same side form a ring structure to improve the structural strength and force transmission effect of the front sides of the front engine compartment.

[0059] As a preferred implementation method, such as Figure 4 and Figure 5As shown, the rear motor mounting beam 302 in the beam structure 3 includes an upper motor beam 3022 and a lower motor beam 3021 that are fastened together. Both the lower motor beam 3021 and the upper motor beam 3022 are connected to the longitudinal beams 1 of the front engine compartment on both sides. The left and right ends of the upper motor beam 3022 are connected to corresponding connecting beams 303 and damping tower connecting beams 301, respectively. This arrangement ensures the structural strength of the rear motor mounting beam 302, facilitates its placement between the longitudinal beams 1 of the front engine compartment on both sides, and facilitates its connection with the damping tower connecting beam 301.

[0060] In this embodiment, the shock absorber tower connecting beam 301 includes a shock absorber tower connecting upper beam 3011 and a shock absorber tower connecting lower beam 3012 that are fastened together. The shock absorber tower connecting upper beam 3011 is connected between the tops of the two front shock absorber towers 2, and the left and right ends of the shock absorber tower connecting lower beam 3012 are respectively connected to the corresponding connecting beam 303 and the motor upper beam 3022. This ensures the structural strength of the shock absorber tower connecting beam 301, facilitates the placement of the shock absorber tower connecting beam 301 between the two front shock absorber towers 2, and facilitates the connection with the motor mounting beam 302.

[0061] Furthermore, upper connecting arms 3031 are respectively provided at the left and right ends of the shock absorber tower connecting beam 301, and lower connecting arms 3032 are respectively provided at the left and right ends of the motor rear mounting beam 302. Each side's upper connecting arm 3031 and lower connecting arm 3032 are connected to the front shock absorber tower 2 on the same side, and each side's connecting beam 303 is formed by connecting the upper connecting arm 3031 and lower connecting arm 3032 on the same side. In this embodiment, by setting the upper connecting arm 3031 and lower connecting arm 3032, and making the connecting beam 303 formed by connecting the upper connecting arm 3031 and lower connecting arm 3032, the connection effect of the connecting beam 303 between the shock absorber tower connecting beam 301 and the motor rear mounting beam 302 can be guaranteed.

[0062] For detailed structure, refer to Figure 3 and Figure 5 As shown, the two ends of the upper crossbeam 3011 connecting the shock absorber tower overlap the top of the front shock absorber tower 2 on the same side, and are connected to the front shock absorber tower 2. The two ends of the lower crossbeam 3012 connecting the shock absorber tower extend downward to form the aforementioned upper connecting arms 3031. Due to the arrangement of the upper connecting arms 3031, the lower crossbeam 3012 connecting the shock absorber tower is U-shaped with the opening facing downward, and each upper connecting arm 3031 is connected to the front shock absorber tower 2 on the same side.

[0063] Still refer to Figure 3 and Figure 5As shown, the two ends of the lower crossbeam 3021 of the motor are folded downwards and connected to the inner side of the longitudinal beam 1 of the front engine compartment on the same side. The two ends of the upper crossbeam 3022 of the motor extend upwards to form the aforementioned lower connecting arms 3032. Due to the arrangement of the lower connecting arms 3032, the upper crossbeam 3022 of the motor is U-shaped with the opening facing upwards, and each lower connecting arm 3032 is connected to the front shock absorber tower 2 and the longitudinal beam 1 of the front engine compartment on the same side. In order to further improve the structural strength and force transmission effect of the connecting beam 303, the upper connecting arm 3031 and the lower connecting arm 3032 on the same side are at least partially overlapped and welded together in this embodiment.

[0064] In a preferred embodiment, a connecting beam cavity is formed between the upper crossbeam 3011 and the lower crossbeam 3012 of the shock absorber tower, and a motor crossbeam cavity is formed between the upper crossbeam 3022 and the lower crossbeam 3021 of the motor. Connecting beam cavities are formed between each side connecting beam 303 and the front shock absorber tower 2 on the same side. Both side connecting beam cavities 303 connect the connecting beam cavity and the motor crossbeam cavity, forming a ring-shaped cavity structure within the beam structure 3.

[0065] The connecting beam cavity is formed by the upper connecting arm 3031, the lower connecting arm 3032, and the front shock absorber tower 2 on the same side. A ring-shaped cavity structure is formed within the beam structure 3, which, by utilizing the high strength of the cavity structure, increases the stiffness of the beam structure 3 and enhances its reinforcement effect in the forward engine compartment.

[0066] Furthermore, in this embodiment, since the upper connecting arm 3031 and the lower connecting arm 3032 are connected to the front shock absorber tower 2 and the front engine compartment longitudinal beam 1 on the same side, it is also beneficial to improve the connection strength at both ends of the beam structure 3, thereby making the beam structure 3 have better reliability when the collision force is transmitted on the beam structure 3.

[0067] In this embodiment, as Figure 3 and Figure 4 As shown, a motor mounting bracket 304 is provided on the upper crossbeam 3022 of the motor, and multiple motor mounting brackets 304 are spaced apart along the left-right direction of the vehicle on the upper crossbeam 3022 of the motor. A battery bracket 305 is provided on the upper crossbeam 3022 of the motor, and the battery bracket 305 is located near one of the longitudinal beams 1 in the front engine compartment. The motor mounting brackets 304 on the upper crossbeam 3022 of the motor facilitate the installation of the motor in the front engine compartment, and the battery brackets 305 facilitate the installation of the battery.

[0068] In practical implementation, the number of motor mounting brackets 304 and battery brackets 305 along the vertical direction of the drive motor 5 can be determined according to usage requirements. Both the motor mounting brackets 304 and battery brackets 305 are connected to the front of the upper crossbeam 3022 of the motor, with the battery mounting bracket 305 located on the side closest to the right front engine compartment longitudinal beam 1. To improve connection strength, both the motor mounting brackets 304 and battery brackets 305 have a fixed portion connected to the upper crossbeam 3022 of the motor, and a connecting portion extending forward from the fixed portion; each connecting portion is provided with mounting holes.

[0069] To further improve the connection strength of the fixed part on the motor upper crossbeam 3022, and thus improve the connection strength of the motor, in this embodiment, as... Figure 4 As shown, the fixing portion of each motor mounting bracket 304 is L-shaped, connecting to both the top and front surfaces of the upper crossbeam 3022 of the motor. Furthermore, reinforcing ribs extending along the length of the vehicle are provided on both the motor mounting bracket 304 and the battery bracket 305, with multiple reinforcing ribs spaced apart along the width of the vehicle. The reinforcing ribs have a simple structure, are easy to process and form, and provide good performance.

[0070] As a preferred implementation method, such as Figures 6 to 8 As shown, the upper crossbeam 3022 of the motor has an upper blocking part that protrudes along the vertical direction of the vehicle, and this upper blocking part is used to restrict the rearward movement of the charger 4 mounted on the rear mounting crossbeam 302 of the motor. At the same time, the lower crossbeam 3021 of the motor has a lower blocking part that protrudes downward along the vertical direction of the vehicle, and this lower blocking part is used to restrict the rearward movement of the drive motor 5 mounted on the front subframe 9.

[0071] In terms of specific structure, it still combines Figure 8 As shown in the diagram, the upper blocking part in this embodiment includes an upper protruding boss 3023 integrally formed on the upper crossbeam 3022 of the motor, and the lower blocking part includes a lower protruding boss 3024 integrally formed on the lower crossbeam 3021 of the motor. In this embodiment, the upper boss 3023 is located at the front of the upper crossbeam 3022 of the motor, and the lower boss 3024 is located at the rear of the lower crossbeam 3021 of the motor. The upper and lower blocking parts are integrally formed bosses, which has a simple structure, is easy to form, and can also ensure the structural strength of the upper and lower blocking parts, thus ensuring the blocking effect of each blocking part.

[0072] In this embodiment, the upper boss 3023 can block the rear side of the charger 4, and the lower boss 3024 can block the rear side of the drive motor 5. In the event of a collision, the charger 4 and the drive motor 5 can be blocked from moving backward, effectively reducing the intrusion of the charger 4 and the drive motor 5 into the front bulkhead 8, maintaining the integrity of the passenger compartment, and reducing the injury to the occupants in a collision.

[0073] Of course, in addition to having both the upper and lower blocking parts mentioned above, in specific implementations, based on design requirements, it is also possible to only have an upper blocking part arranged in an upward convex manner on the upper crossbeam 3022 of the motor, or only have a lower blocking part arranged in a downward convex manner on the lower crossbeam 3021 of the motor.

[0074] To further improve the energy absorption effect of the ring beam structure 3, in this embodiment, as follows: Figures 6 to 8 As shown, an upper energy-absorbing structure 3025 is integrally formed on the upper crossbeam 3022 of the motor, located on one side of the upper boss 3023, and a lower energy-absorbing structure 3026 is integrally formed on the lower crossbeam 3021 of the motor, located on one side of the lower boss 3024. As a preferred structural example, the cross-sections of both the upper energy-absorbing structure 3025 and the lower energy-absorbing structure 3026 are stepped.

[0075] In this embodiment, by further configuring an energy-absorbing structure with a stepped cross-section, not only is the arrangement and implementation easier, but it can also absorb energy from the charger 4 and the drive motor 5, thereby better reducing the intrusion of the front enclosure 8 of the charger 4 and the drive motor 5 and ensuring the safety of the occupant compartment. It should be noted that in specific implementation, it is also feasible to use only one of the upper energy-absorbing structure 3025 and the lower energy-absorbing structure 3026.

[0076] In addition, refer to Figure 5 As shown, to further enhance the performance of the beam structure 3, an upwardly arched protrusion 3013 is provided in the middle of the upper crossbeam 3011 connecting the shock absorber tower, and a rearwardly recessed portion 3027 is provided in the middle of the upper boss 3023. The protrusion 3013 improves the energy absorption effect and structural strength of the top of the beam structure 3, while the recessed portion 3027 further enhances the structural strength and energy absorption effect of the upper boss 3023.

[0077] As a preferred implementation method, such as Figures 9 to 12 As shown, both front engine compartment longitudinal beams 1 include an inner longitudinal beam plate 101 and an outer longitudinal beam plate 102 that are fastened together. Between the inner longitudinal beam plate 101 and the outer longitudinal beam plate 102, there is an upper overlapping stop 103 located at the top of the front engine compartment longitudinal beam 1, and a lower overlapping stop 104 located at the bottom of the front engine compartment longitudinal beam 1. In the left-right direction of the vehicle, the lower overlapping stop 104 is located on the side of the front engine compartment longitudinal beam 1 closest to the outside of the vehicle, and the upper overlapping stop 103 has a front section 1031 located on the side of the front engine compartment longitudinal beam 1 closest to the outside of the vehicle, and a rear section 1032 located on the side of the front engine compartment longitudinal beam 1 closest to the inside of the vehicle.

[0078] In this embodiment, the upper overlapping stop 103 and the lower overlapping stop 104 of the front engine compartment longitudinal beam 1 can accommodate the motion envelope of the double wishbone suspension and the assembly of the motor front mounting beam 6, which can meet the mounting requirements of the double wishbone front suspension and help improve the vehicle's driving performance.

[0079] In terms of specific structure, such as Figure 13 and Figure 14 As shown, to form the aforementioned upper overlapping stop 103 and lower overlapping stop 104, the top of the rear section of the longitudinal beam inner plate 101 extends upward along the overall vehicle height direction, thus making the rear section of the longitudinal beam inner plate 101 plate-shaped. The top of the rear section of the longitudinal beam inner plate 101 forms the inner part of the rear section 1032 of the upper overlapping stop, and facilitates the location of the rear section 1032 of the upper overlapping stop closer to the vehicle interior.

[0080] An inner upper stop flange 112 is provided at the top of the front section of the inner plate 101 of the longitudinal beam, which is inclined outward along the longitudinal direction of the vehicle. This inner upper stop flange 112 is used to form the inner part of the front section 1031 of the upper overlapping stop. In this embodiment, the inner upper stop flange 112 is inclined, which is beneficial for the front section 1031 of the upper overlapping stop to be located on the side closer to the outside of the vehicle, so that the upper overlapping stop 103 can better transition from the inside to the outside of the front engine compartment longitudinal beam 1, and has better structural strength. In addition, an inner lower stop flange 111 is provided at the bottom of the inner plate 101 of the longitudinal beam, which extends along its own length direction. This inner lower stop flange 111 is located on the outside of the entire front engine compartment longitudinal beam 1 and is used to form the inner part of the lower overlapping stop 104.

[0081] In this embodiment, a preferred exemplary structure of the outer plate 102 of the longitudinal beam is as follows: Figure 15 As shown in the diagram, an upper outer stop flange 113 is provided at the top of the longitudinal beam outer plate 102. The rear section of the upper outer stop flange 113 is located inside the entire front engine compartment longitudinal beam 1 and forms the outer part of the rear section 1032 of the upper overlapping stop. The front section of the upper outer stop flange 113 is inclined outward along the longitudinal direction of the vehicle and forms the outer part of the front section 1031 of the upper overlapping stop. The bottom part of the rear section of the longitudinal beam outer plate 102 is plate-shaped, and the front section has an lower outer stop flange 114 to form the outer part of the lower overlapping stop 104, so that the lower overlapping stop 104 is located on the side of the front engine compartment longitudinal beam 1 closer to the outside of the vehicle. Here, the structure of the upper overlapping stop 103 and the lower overlapping stop 104 is simple, easy to process and form, and has good performance.

[0082] In specific implementation, the double wishbone suspension motion envelope is located on the outside of the front engine compartment longitudinal beam 1. To improve the mounting effect of the double wishbone suspension motion envelope, such as... Figure 9 and Figure 10As shown, the outer plate 102 of the longitudinal beam has a recessed portion 105 for avoiding the front suspension envelope, and the recessed portion 105 is located at the top of the outer plate 102 of the longitudinal beam. The recessed portion 105 has a simple structure and is easy to arrange and implement. It facilitates the mounting of the double wishbone suspension motion envelope while also reducing the space occupied in the left and right directions of the vehicle.

[0083] Furthermore, to facilitate installation at the front of the motor, in this embodiment, combined with Figure 9 and Figure 10 As shown, the top of the inner plate 101 of the longitudinal beam is provided with a motor front mounting beam mounting part located on one side of the front section 1031 of the upper overlap stop. The motor front mounting beam mounting parts on each side are located near the dividing point between the front section 1031 and the rear section 1032 of the upper overlap stop on the same side, and the aforementioned motor front mounting beam 6 connects the two motor front mounting beam mounting parts.

[0084] Here, by setting a motor front mounting beam mounting part on the top of the inner plate 101 of the longitudinal beam, located on one side of the front section 1031 of the upper overlapping stop, the cross section of the inner plate 101 of the longitudinal beam can be fully utilized based on the design of the front section 1031 of the upper overlapping stop, which is beneficial to the arrangement of the motor front mounting beam 6 in the vehicle body. In specific implementation, the specific structural form of the motor front mounting beam mounting part can be determined according to the usage requirements.

[0085] To further enhance the structural strength of the forward engine compartment longitudinal beam 1, preferably, an inner plate corner reinforcement 106 is provided on the inner side of the inner plate 101 of the longitudinal beam. The inner plate corner reinforcement 106 has an "L"-shaped cross-section and is connected to the corner of the inner plate 101 of the longitudinal beam. Furthermore, an outer plate corner reinforcement 107 is provided on the inner side of the outer plate 102 of the longitudinal beam. The outer plate corner reinforcement 107 has an "L"-shaped cross-section and is connected to the corner of the outer plate 102 of the longitudinal beam.

[0086] In this embodiment, by setting inner plate corner reinforcements 106 and outer plate corner reinforcements 107 at the corner positions, the structural strength of the inner plate 101 and outer plate 102 of the longitudinal beam can be increased, effectively improving the cross-sectional force of the forward engine compartment longitudinal beam 1. In addition, the "L"-shaped corner reinforcements are adapted to the structural shape at the corner positions and have good connection strength.

[0087] In terms of specific structure, refer to Figures 13 to 15 As shown, the inner plate corner reinforcement 106 is preferably arranged at the bottom corner of the rear end of the inner plate 101 of the longitudinal beam, and the outer plate corner reinforcement 107 is preferably arranged at the top corner of the rear end of the outer plate 102 of the longitudinal beam. That is to say, in this embodiment, the outer plate corner reinforcement 107 and the inner plate corner reinforcement 106 are diagonally arranged at the same position on the forward engine compartment longitudinal beam 1, so that the two work together to improve the cross-sectional force of the forward engine compartment longitudinal beam 1.

[0088] In this embodiment, the inner corner reinforcement 106 and the outer corner reinforcement 107 have simple structures, making them easy to process, form, and implement. It should be noted that the positions of the inner corner reinforcement 106 and the outer corner reinforcement 107 in this embodiment can be adjusted according to usage requirements. Furthermore, it is also feasible to use only one of the inner corner reinforcement 106 and the outer corner reinforcement 107.

[0089] To facilitate the installation of the front subframe 9 on the front engine compartment, in this embodiment, a front subframe mounting section is provided within the longitudinal beam 1 of the front engine compartment. For example... Figures 13 to 15 As shown, the front subframe mounting section includes a nut plate 108 with threaded connection holes and a reinforcing plate 109 connected to the nut plate 108. The reinforcing plate 109 is connected to at least the top surface and the left and right side surfaces within the front engine compartment longitudinal beam 1. Here, the front subframe mounting section is composed of the nut plate 108 and the reinforcing plate 109, and the reinforcing plate 109 is connected to the top surface and the left and right side surfaces within the front engine compartment longitudinal beam 1, which ensures the structural strength of the front subframe mounting section itself and helps to improve the stability of the front subframe installation.

[0090] In terms of specific structure, such as Figures 16 to 18 As shown, the front subframe mounting section is located within the longitudinal beam cavity formed by the inner longitudinal beam plate 101 and the outer longitudinal beam plate 102. In this embodiment, the nut plate 108 includes a base plate 1081 and a threaded sleeve 1082 connected to the base plate 1081. A threaded connection hole is located within the threaded sleeve 1082 and penetrates the base plate 1081. The threaded sleeve 1082 is connected to a groove 1091 on the reinforcing plate 109, the groove 1091 conforming to the shape of the threaded sleeve 1082.

[0091] In this embodiment, the nut plate 108 is composed of a base plate 1081 and a threaded sleeve 1082, which facilitates the installation of the nut plate 108 within the forward engine compartment longitudinal beam 1. It also fits into the groove 1091 provided on the reinforcing plate 109, thus facilitating the connection between the nut plate 108 and the reinforcing plate 109. Furthermore, the nut plate 108 is integrally stamped, which facilitates its fabrication and ensures its structural strength.

[0092] In specific arrangements, such as Figure 16 and Figure 17 As shown, the base plate 1081 is specifically connected to the inner side of the bottom of the inner plate 101 of the longitudinal beam, and a through hole corresponding to the threaded connection hole is provided at the bottom of the inner plate 101 of the longitudinal beam for mounting the connecting parts of the front subframe 9 and connecting them to the threaded connection hole. The groove 1091 of the reinforcing plate 109 faces the rear of the vehicle. The reinforcing plate 109 is horizontally placed on the front side of the threaded sleeve 1082 and connected to the top of the threaded sleeve 1082. The groove 1091 conforms to the threaded sleeve 1082, meaning that the bottom of the groove 1091 fits snugly against the outer peripheral wall of the threaded sleeve 1082, thus providing better connection strength and stability.

[0093] Preferably, the top and left and right sides of the reinforcing plate 109 are provided with connecting flanges 1092, and the reinforcing plate 109 is connected to the forward engine compartment longitudinal beam 1 through the connecting flanges 1092. Figures 13 to 15 As shown, the top and left and right sides of the reinforcing plate 109 are connected and forward-facing connecting flanges 1092. The reinforcing plate 109 is connected to the top surface and left and right sides of the front engine compartment longitudinal beam 1 through the connecting flanges 1092.

[0094] The connection flange 1092 makes the entire reinforcing plate 109 box-shaped. This box-shaped structure has the advantage of good structural strength, increasing not only the structural strength of the reinforcing plate 109 itself but also improving the reliability of the connection between the reinforcing plate 109 and the forward engine compartment longitudinal beam 1. Of course, in specific implementations, it is also feasible to have the connection flange 1092 located only at the top or on the left and right sides of the reinforcing plate 109.

[0095] In this embodiment, the front engine compartment structure, by setting an annular beam structure 3 between the two front shock absorber towers 2, not only increases the stiffness of the front shock absorber towers 2 on each side, but also utilizes the high strength of the annular structure to increase the Y-direction (left-right direction of the vehicle) support stiffness between the two front shock absorber towers 2, and forms a force transmission channel between the two front shock absorber towers 2 and the longitudinal beam 1 of the front engine compartment. This is beneficial to improving the overall stiffness of the front engine compartment, facilitating the transmission and dispersion of collision forces in the front engine compartment, and helping to improve the safety of the entire vehicle.

[0096] Example 2

[0097] This embodiment also relates to a vehicle that has the front engine compartment structure of Embodiment 1.

[0098] The vehicle in this embodiment, by setting the front engine compartment structure as in Embodiment 1, can increase the stiffness of the front shock absorber towers 2 on each side, increase the Y-direction support stiffness between the two front shock absorber towers 2, and also facilitate the transmission and dispersion of collision forces in the front engine compartment, which helps to improve the collision safety of the whole vehicle and has good practicality.

[0099] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A forward engine compartment structure, characterized in that: It includes forward engine compartment longitudinal beams (1) located on the left and right sides, and forward shock absorber towers (2) connected to the forward engine compartment longitudinal beams (1) on each side. A beam structure (3) is provided between the front shock absorber towers (2) on both sides to form a ring. The beam structure (3) includes a shock absorber tower connecting crossbeam (301) and a motor rear mounting crossbeam (302) arranged opposite each other, as well as connecting beams (303) on the left and right sides respectively. The shock absorber tower connecting beam (301) is connected between the tops of the front shock absorber towers (2) on both sides, the motor rear mounting beam (302) is connected between the front engine compartment longitudinal beams (1) on both sides, the connecting beam (303) on each side is connected to the front shock absorber tower (2) on the same side, and the shock absorber tower connecting beam (301) and the motor rear mounting beam (302) are connected together; The rear mounting crossbeam (302) of the motor includes an upper crossbeam (3022) and a lower crossbeam (3021) of the motor that are fastened together. The lower crossbeam (3021) and the upper crossbeam (3022) of the motor are both connected to the longitudinal beams (1) of the front engine compartment on both sides, and the left and right ends of the upper crossbeam (3022) of the motor are respectively connected by the corresponding connecting beam (303) and the shock absorber tower connecting crossbeam (301). The shock absorber tower connecting crossbeam (301) includes a shock absorber tower connecting upper crossbeam (3011) and a shock absorber tower connecting lower crossbeam (3012) that are fastened together. The upper crossbeam (3011) of the shock absorber tower is connected between the tops of the front shock absorber towers (2) on both sides, and the left and right ends of the lower crossbeam (3012) of the shock absorber tower are connected by the corresponding connecting beam (303) and the upper crossbeam (3022) of the motor respectively. A connecting beam cavity is formed between the upper crossbeam (3011) of the shock absorber tower and the lower crossbeam (3012) of the shock absorber tower, and a motor beam cavity is formed between the upper crossbeam (3022) of the motor and the lower crossbeam (3021) of the motor. A connecting beam cavity is formed between the connecting beam (303) on each side and the front shock absorber tower (2) on the same side. The connecting beam cavities on both sides connect the connecting crossbeam cavity and the motor crossbeam cavity, and form an annular cavity structure within the beam structure (3).

2. The forward nacelle structure according to claim 1, characterized in that: The left and right ends of the shock absorber tower connecting beam (301) are respectively provided with upper connecting arms (3031), and the left and right ends of the motor rear mounting beam (302) are respectively provided with lower connecting arms (3032). The upper connecting arm (3031) and the lower connecting arm (3032) on each side are connected to the front shock absorber tower (2) on the same side, and the connecting beam (303) on each side is formed by connecting the upper connecting arm (3031) and the lower connecting arm (3032) on the same side.

3. The forward nacelle structure according to claim 1, characterized in that: The upper crossbeam (3022) of the motor is provided with a motor mounting bracket (304), and the motor mounting bracket (304) is a plurality of brackets spaced apart along the left-right direction of the vehicle on the upper crossbeam (3022); and / or, A battery bracket (305) is provided on the upper crossbeam (3022) of the motor, and the battery bracket (305) is located near one side of the longitudinal beam (1) of the front engine compartment.

4. The forward nacelle structure according to claim 1, characterized in that: The upper crossbeam (3022) of the motor is provided with an upper blocking part that protrudes along the vertical direction of the vehicle, and the upper blocking part is used to restrict the rearward movement of the charger (4) mounted on the rear crossbeam (302) of the motor; and / or, The lower crossbeam (3021) of the motor is provided with a lower blocking part that protrudes downward along the vertical direction of the whole vehicle, and the lower blocking part is used to restrict the drive motor (5) installed on the front subframe (9) from moving backward.

5. The forward nacelle structure according to claim 4, characterized in that: The upper blocking part includes an upper boss (3023) integrally formed on the upper crossbeam (3022) of the motor. The lower blocking part includes a lower boss (3024) integrally formed on the lower crossbeam (3021) of the motor.

6. The forward nacelle structure according to claim 5, characterized in that: The upper crossbeam (3022) of the motor has an integrally formed upper energy-absorbing structure (3025) located on one side of the upper boss (3023), and / or the lower crossbeam (3021) of the motor has an integrally formed lower energy-absorbing structure (3026) located on one side of the lower boss (3024). The cross-sections of the upper energy-absorbing structure (3025) and the lower energy-absorbing structure (3026) are both stepped.

7. The forward nacelle structure according to any one of claims 1 to 6, characterized in that: Both sides of the forward engine compartment longitudinal beam (1) include an inner longitudinal beam plate (101) and an outer longitudinal beam plate (102) that are fastened together. The inner plate (101) of the longitudinal beam and the outer plate (102) of the longitudinal beam have an upper overlapping stop (103) located at the top of the forward engine room longitudinal beam (1) and a lower overlapping stop (104) located at the bottom of the forward engine room longitudinal beam (1). In the left-right direction of the vehicle, the lower overlap stop (104) is provided on the side of the front engine compartment longitudinal beam (1) near the outside of the vehicle, and the upper overlap stop (103) has a front section (1031) of the upper overlap stop provided on the side of the front engine compartment longitudinal beam (1) near the outside of the vehicle, and a rear section (1032) of the upper overlap stop provided on the side of the front engine compartment longitudinal beam (1) near the inside of the vehicle.

8. The forward nacelle structure according to claim 7, characterized in that: The top of the inner plate (101) of the longitudinal beam is provided with a motor front mounting beam mounting part located on one side of the front section (1031) of the upper lap joint stop; The motor front mounting crossbeam mounting parts on each side are located near the dividing point between the front section (1031) and the rear section (1032) of the upper overlapping stop on the same side, and the motor front mounting crossbeam (6) is connected between the motor front mounting crossbeam mounting parts on both sides.

9. A vehicle, characterized in that: The vehicle is provided with a front engine compartment structure as described in any one of claims 1 to 8.

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