Front floor assembly and vehicle

Abstract

The utility model discloses a front floor assembly and a vehicle, the front floor assembly comprises a left doorsill beam, a right doorsill beam, a front cross beam and a rear cross beam, two ends of the front cross beam and two ends of the rear cross beam are respectively connected with the left doorsill beam and the right doorsill beam; the middle channel boundary beam extends in the front-back direction and comprises a first section and a second section, the first section is connected with the front cross beam, and the second section is connected with the rear cross beam; the seat cross beam is arranged above the middle channel edge beam, and the two ends of the seat cross beam are connected with the left threshold beam and the right threshold beam respectively; the upper side face of the first section protrudes out of the upper side face of the second section and forms a supporting step, and the supporting step abuts against the front side face of the seat beam. According to the middle channel edge beam of the front floor assembly, collision force can be transmitted to the seat cross beam through the supporting steps, then the middle channel edge beam and the seat cross beam can jointly bear force, and the direct collision anti-collision capacity of the front floor assembly can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and particularly relates to a front floor assembly and a vehicle. Background Art

[0002] In the related art, the front floor assembly usually has a middle channel side beam, and the middle channel side beam is respectively connected to the front cross beam, the rear cross beam and the seat cross beam, and then the floor panel is connected to the above-mentioned beam bodies to form a middle channel. However, due to the unreasonable structural design of the front floor assembly in the related art, when the vehicle is impacted head-on, the middle channel side beam will directly transmit the force backward to the rear cross beam, and the front floor assembly has poor ability to absorb the collision impact. Content of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a front floor assembly, in which the middle channel side beam of the front floor assembly can transmit the collision force to the seat cross beam through the support step, and then the middle channel side beam and the seat cross beam can bear the force together, which is beneficial to improving the front collision resistance of the front floor assembly.

[0004] The utility model also provides a vehicle with the above-mentioned front floor assembly.

[0005] To achieve the above object, according to the first aspect embodiment of the utility model, a front floor assembly is provided, including: a left sill beam, a right sill beam, a front cross beam and a rear cross beam, wherein the two ends of the front cross beam and the two ends of the rear cross beam are respectively connected to the left sill beam and the right sill beam; a middle channel side beam extending in the front-rear direction and including a first section and a second section, the first section is connected to the front cross beam, and the second section is connected to the rear cross beam; a seat cross beam arranged above the middle channel side beam, and the two ends of the seat cross beam are respectively connected to the left sill beam and the right sill beam; wherein, the upper side surface of the first section protrudes from the upper side surface of the second section and forms a support step, and the support step abuts against the front side surface of the seat cross beam.

[0006] In this way, the middle channel side beam according to the embodiment of the utility model can transmit the collision force to the seat cross beam through the support step, and then the middle channel side beam and the seat cross beam can bear the force together, which is beneficial to improving the front collision resistance of the front floor assembly.

[0007] According to some embodiments of the utility model, there are a plurality of seat cross beams, and the plurality of seat cross beams include a first seat cross beam and a second seat cross beam, the first seat cross beam is arranged in front of the second seat cross beam, the second seat cross beam is arranged above the middle channel side beam, and the front side surface of the second seat cross beam abuts against the support step.

[0008] According to some embodiments of the present invention, two ends of the second seat cross beam are configured with a plurality of energy absorbing holes arranged at intervals.

[0009] According to some embodiments of the utility model, there are multiple center channel side beams, and the multiple center channel side beams include a first center channel side beam and a second center channel side beam, the first center channel side beam and the second center channel side beam are arranged at intervals along the left and right directions, and the support steps of the first center channel side beam and the support steps of the second center channel side beam respectively stop at the front side surface of the seat cross beam.

[0010] According to some embodiments of the utility model, the lower side surface of the second seat cross beam is recessed upward to form an avoidance gap, and the first middle channel side beam and the second middle channel side beam are both arranged in the avoidance gap; wherein, in the left and right directions, the first middle channel side beam stops at one side wall of the avoidance gap, and the second middle channel side beam stops at the other side wall of the avoidance gap.

[0011] According to some embodiments of the present utility model, the first seat cross beam includes: a first sub-section, the first sub-section is arranged between the first middle channel side beam and the left door sill beam and is respectively connected to the first middle channel side beam and the left door sill beam; a second sub-section, the second sub-section is arranged between the second middle channel side beam and the right door sill beam and is respectively connected to the second middle channel side beam and the right door sill beam; a connecting bracket, the connecting bracket is arranged above the middle channel side beam and is respectively connected to the first middle channel side beam and the second middle channel side beam.

[0012] According to some embodiments of the present utility model, the front floor assembly also includes: a first sub-longitudinal beam and a second sub-longitudinal beam, the first sub-longitudinal beam extends in the front-to-back direction and is respectively connected to the front cross beam and the first sub-segment, the second sub-longitudinal beam extends in the front-to-back direction and is respectively connected to the front cross beam and the second sub-segment; a first sub-cross beam and a second sub-cross beam, the first sub-cross beam extends in the left-right direction and is respectively connected to the left sill beam and the first middle channel side beam, the second sub-cross beam extends in the left-right direction and is respectively connected to the right sill beam and the second middle channel side beam.

[0013] According to some embodiments of the present utility model, the front floor assembly further includes: a first floor panel disposed between the left sill beam and the first middle channel side beam, and the first floor panel is respectively connected to the left sill beam, the first middle channel side beam, the front cross beam and the rear cross beam; a second floor panel disposed between the right sill beam and the second middle channel side beam, and the second floor panel is respectively connected to the right sill beam, the second middle channel side beam, the front cross beam and the rear cross beam; a first middle channel panel disposed between the first middle channel side beam and the second middle channel side beam, and the first middle channel panel is respectively connected to the first middle channel side beam, the second middle channel side beam, the front side of the second seat cross beam and the front cross beam; a second middle channel panel disposed between the first middle channel side beam and the second middle channel side beam, and the second middle channel panel is respectively connected to the first middle channel side beam, the second middle channel side beam, the rear side of the second seat cross beam and the rear cross beam.

[0014] According to some embodiments of the present utility model, the middle channel side beam is configured with a communicating sound inlet and a first sound cavity, the seat cross beam is provided with a second sound cavity, the left sill beam and the right sill beam are provided with a third sound cavity, and the second sound cavity is respectively communicated with the first sound cavity and the third sound cavity; wherein, the front floor assembly further includes a sound component, and the sound component is connected to the middle channel side beam and communicated with the sound inlet.

[0015] According to an embodiment of the second aspect of the present utility model, a vehicle is provided, and the vehicle includes the front floor assembly according to the embodiment of the first aspect of the present utility model.

[0016] For the vehicle according to the embodiment of the second aspect of the present utility model, by using the front floor assembly according to the embodiment of the first aspect of the present utility model, the middle channel side beam of the front floor assembly can transfer the collision force to the seat cross beam through the support step, and then the middle channel side beam and the seat cross beam can jointly bear the force, which is beneficial to improving the frontal collision resistance of the front floor assembly.

[0017] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0019] Figure 1It is a schematic structural diagram of a front floor assembly according to an embodiment of the present utility model;

[0020] Figure 2 It is a schematic diagram of the frontal collision force transmission path of the front floor assembly according to an embodiment of the present utility model;

[0021] Figure 3 It is an exploded structural diagram of the front floor assembly;

[0022] Figure 4 It is a schematic structural diagram of the front floor assembly with the floor panel removed according to an embodiment of the present utility model;

[0023] Figure 5 It is a schematic assembly structural diagram of a middle channel side beam and a second seat cross beam according to an embodiment of the present utility model;

[0024] Figure 6 It is a schematic structural diagram of a middle channel side beam according to an embodiment of the present utility model;

[0025] Figure 7 It is a schematic structural diagram of a second seat cross beam according to an embodiment of the present utility model.

[0026] Reference numerals:

[0027] 1. Front floor assembly;

[0028] 110. Left sill beam; 120. Right sill beam; 130. Front cross beam; 140. Rear cross beam;

[0029] 200. Middle channel side beam; 210. First section; 220. Second section; 230. Support step; 240. First middle channel side beam; 250. Second middle channel side beam; 260. Sound inlet; 270. First sound cavity; 280. Guide through hole;

[0030] 300. Seat cross beam; 310. First seat cross beam; 311. First sub-section; 312. Second sub-section; 313. Connection bracket; 320. Second seat cross beam; 321. Energy absorption hole; 322. Avoidance notch; 330. Second sound cavity;

[0031] 410. First auxiliary longitudinal beam; 420. Second auxiliary longitudinal beam; 430. First auxiliary cross beam; 440. Second auxiliary cross beam;

[0032] 510. First floor panel; 520. Second floor panel; 530. First middle channel panel; 540. Second middle channel panel;

[0033] 600. Audio component; 700. Reinforcing rib. Detailed implementation manners

[0034] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings, where like or similar reference numerals denote like or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0035] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0036] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features.

[0037] In the description of the present utility model, the meaning of "a plurality" is two or more, and the meaning of "several" is one or more.

[0038] The front floor assembly 1 according to an embodiment of the present utility model will be described below with reference to the drawings.

[0039] As Figures 1-7 shown, the front-rear direction in the drawings is the front-rear direction of the front floor assembly 1, the left-right direction in the drawings is the left-right direction of the front floor assembly 1, and the up-down direction in the drawings is the up-down direction of the front floor assembly 1.

[0040] The front floor assembly 1 according to an embodiment of the present utility model includes a left sill beam 110, a right sill beam 120, a front cross beam 130, a rear cross beam 140, a middle channel side beam 200, and a seat cross beam 300.

[0041] Both ends of the front cross beam 130 and both ends of the rear cross beam 140 are respectively connected to the left sill beam 110 and the right sill beam 120. The middle channel side beam 200 extends in the front-rear direction and includes a first section 210 and a second section 220. The first section 210 is connected to the front cross beam 130, and the second section 220 is connected to the rear cross beam 140. The seat cross beam 300 is disposed above the middle channel side beam 200, and both ends of the seat cross beam 300 are respectively connected to the left sill beam 110 and the right sill beam 120. Among them, the upper side surface of the first section 210 protrudes from the upper side surface of the second section 220 and forms a support step 230, and the support step 230 abuts against the front side surface of the seat cross beam 300.

[0042] Wherein, both ends of the front cross member 130 and both ends of the rear cross member 140 are respectively connected to the left sill beam 110 and the right sill beam 120, which means that one end of the front cross member 130 is connected to the left sill beam 110, and the other end of the front cross member 130 is connected to the right sill beam 120, and one end of the rear cross member 140 is connected to the left sill beam 110, and the other end of the rear cross member 140 is connected to the right sill beam 120.

[0043] In addition, reinforcement members can be respectively arranged inside the left sill beam 110 and the right sill beam 120. For example, the reinforcement members can be inserted into the left sill beam 110 or the right sill beam 120 from the end of the left sill beam 110 or the right sill beam 120 to enhance the structural strength of the left sill beam 110 and the right sill beam 120.

[0044] In addition, it should be noted that the positions where the left sill beam 110, the right sill beam 120, the front cross member 130, the rear cross member 140, the middle channel side beam 200 and the seat cross member 300 are connected to each other can all adopt welding or bolt connection.

[0045] According to the front floor assembly 1 of the embodiment of the present utility model, by making the upper side of the first section 210 protrude from the upper side of the second section 220 and form a support step 230, and the support step 230 abuts against the front side of the seat cross member 300, that is to say, the middle channel side beam 200 can form a structure with a higher front and a lower rear in the front-rear direction. In this way, the middle channel side beam 200 can utilize the support step 230 to abut against the seat cross member 300, that is, the rear end of the first section 210 can abut against the front side of the seat cross member 300.

[0046] Thus, when the front floor assembly 1 is subjected to a frontal collision, that is, when the front floor assembly 1 is impacted from the front of the front floor assembly 1, the front cross member 130 can transfer part of the collision force to the middle channel side beam 200, and then this part of the collision force will be transmitted backward along the first section 210. The cross-sectional area of the first section 210 is relatively large, and the force-bearing capacity is relatively strong. And when the collision force is transmitted along the first section 210 to the support step 230, part of this part of the collision force will continue to be transmitted backward along the second section 220 to the rear cross member 140, and another part of the collision force will be transmitted to the seat cross member 300 through the support step 230. That is, the seat cross member 300 and the middle channel side beam 200 can share the force together, thereby improving the anti-collision ability of the front floor assembly 1.

[0047] In this way, the middle channel side beam 200 of the front floor assembly 1 according to the embodiment of the present utility model can transfer the collision force to the seat cross member 300 through the support step 230, and further, the middle channel side beam 200 and the seat cross member 300 can bear the force together, which is beneficial to improving the frontal collision resistance of the front floor assembly 1.

[0048] In some specific embodiments of the present utility model, such as Figures 1-4 As shown, there are multiple seat crossbeams 300, and the multiple seat crossbeams 300 include a first seat crossbeam 310 and a second seat crossbeam 320. The first seat crossbeam 310 is arranged on the front side of the second seat crossbeam 320. The second seat crossbeam 320 is arranged above the middle channel side beam 200, and the front side surface of the second seat crossbeam 320 abuts against the support step 230.

[0049] That is to say, the second seat crossbeam 320 is the rear seat crossbeam. With such an arrangement, the support step 230 on the middle channel side beam 200 can stop against the front side surface of the rear seat crossbeam. This can not only utilize the second seat crossbeam 320 and the middle channel side beam 200 to jointly share the collision force received by the front floor assembly 1, but also the rear seat crossbeam can be located above the second section 220, and the height of the middle channel side beam 200 at the rear row can be relatively low. Furthermore, a larger activity space for the feet of the rear row passengers can be ensured, and the riding comfort of users is better.

[0050] Moreover, both ends of the first seat crossbeam 310 are respectively connected to the left sill beam 110 and the right sill beam 120, and both ends of the second seat crossbeam 320 are respectively connected to the left sill beam 110 and the right sill beam 120. This can enhance the overall structural strength of the front floor assembly 1, and the force-bearing capacity of the front floor assembly 1 is stronger.

[0051] In some specific embodiments of the present utility model, such as Figure 5 and Figure 7 As shown, the front side surface of the second seat crossbeam 320 can extend in the up and down direction, that is, the front side surface of the second seat crossbeam 320 can extend vertically. This is convenient for the front side surface of the second seat crossbeam 320 to abut against the support step 230, and further convenient for the first section 210 to transfer the force to the second seat crossbeam 320 through the support step 230.

[0052] In addition, the rear side surface of the second seat crossbeam 320 can gradually extend backward and obliquely. This is convenient for the second seat crossbeam 320 to release the collision force, and the buffering effect is better. It further improves the force-bearing and supporting capacity of the second seat crossbeam 320, so that the force-bearing capacity of the front floor assembly 1 is stronger.

[0053] In addition, flange edges can be respectively arranged at both ends in the length direction of the first seat crossbeam 310 and both ends in the length direction of the second seat crossbeam 320. This can play a role in pre-positioning the connection between the seat crossbeam 300 and the sill beam, making the connection between the seat crossbeam 300 and the sill beam more accurate and improving the assembly efficiency of the seat crossbeam 300 and the sill beam.

[0054] In some specific embodiments of the present utility model, such as Figure 5 and Figure 7As shown, a plurality of energy-absorbing holes 321 are formed at both ends of the second seat crossbeam 320 at intervals.

[0055] That is to say, a plurality of energy-absorbing holes 321 can be formed at both ends of the second seat crossbeam 320 in the left-right direction. The energy-absorbing holes 321 can be designed as oblong holes or rectangular holes, and the plurality of energy-absorbing holes 321 can be arranged at intervals in the up-down, left-right, and front-back directions.

[0056] With such a setting, the structural strength at both ends of the second seat crossbeam 320 in the left-right direction can be reduced. Thus, when the left sill beam 110 or the right sill beam 120 is impacted, that is, when the front floor assembly 1 is subjected to a side collision, part of the collision force will be transmitted from the left sill beam 110 or the right sill beam 120 to the second seat crossbeam 320. Or in other collision cases when the second seat crossbeam 320 transmits force, due to the lower structural strength of the second seat crossbeam 320 at the position where the energy-absorbing holes 321 are provided, the energy-absorbing holes 321 can play the role of "inducing crushing deformation", that is, the second seat crossbeam 320 can preferentially deform at the end, so as to avoid bending deformation in the middle when the second seat crossbeam 320 transmits force, and the safety of the vehicle during a collision can be higher.

[0057] In some specific embodiments of the present invention, as Figures 1-5 shown, and the plurality of middle channel side beams 200 include a first middle channel side beam 240 and a second middle channel side beam 250.

[0058] The first middle channel side beam 240 and the second middle channel side beam 250 are arranged at intervals in the left-right direction, and the support steps 230 of the first middle channel side beam 240 and the support steps 230 of the second middle channel side beam 250 respectively abut against the front side surface of the seat crossbeam 300.

[0059] In this way, the first middle channel side beam 240 and the second middle channel side beam 250 can be respectively arranged on the left and right sides of the middle channel, and thus can be used to form the middle channel.

[0060] Moreover, by arranging a plurality of middle channel side beams 200 in the left-right direction, a plurality of force transmission paths can be formed through the first middle channel side beam 240 and the second middle channel side beam 250. When the front floor assembly 1 is impacted, the collision force can be transmitted along the first middle channel side beam 240 and the second middle channel side beam 250 respectively, further improving the force-bearing capacity of the front floor assembly 1, and the anti-collision performance of the front floor assembly 1 is better.

[0061] In some specific embodiments of the present invention, as Figure 7 shown, a relief notch 322 is formed by the downward depression of the lower side surface of the second seat crossbeam 320, and the first middle channel side beam 240 and the second middle channel side beam 250 are both arranged in the relief notch 322.

[0062] With such a setting, the avoidance notch 322 can avoid the first middle-channel side beam 240 and the second middle-channel side beam 250. Moreover, after the first middle-channel side beam 240 and the second middle-channel side beam 250 are arranged within the avoidance notch 322, the height of the second seat crossbeam 320 after assembly can be reduced, thereby avoiding the excessive height of the second seat crossbeam 320, which is beneficial to saving the interior space of the vehicle and facilitating the layout and installation of the rear seat, and the structural setting is more reasonable.

[0063] In addition, in the left-right direction, the first middle-channel side beam 240 abuts against one side wall of the avoidance notch 322, and the second middle-channel side beam 250 abuts against the other side wall of the avoidance notch 322.

[0064] For example, the left side of the first middle-channel side beam 240 can abut against the left side of the avoidance notch 322, and the right side of the second middle-channel side beam 250 can abut against the right side of the avoidance notch 322.

[0065] With such a setting, the overall structural stability of the front floor assembly 1 can be further improved. When the left sill beam 110 or the right sill beam 120 is impacted, part of the impact force can be transmitted to the second seat crossbeam 320, and then can be transmitted to the first middle-channel side beam 240 or the second middle-channel side beam 250 through the side wall of the avoidance notch 322, that is, the middle-channel side beam 240 and the seat crossbeam 300 can share the force together, so that the front floor assembly 1 has a stronger force-bearing capacity and better anti-collision performance.

[0066] In some specific embodiments of the present invention, as Figures 1-4 shown, the first seat crossbeam 310 includes a first sub-section 311, a second sub-section 312 and a connecting bracket 313.

[0067] The first sub-section 311 is arranged between the first middle-channel side beam 240 and the left sill beam 110 and is respectively connected to the first middle-channel side beam 240 and the left sill beam 110. The second sub-section 312 is arranged between the second middle-channel side beam 250 and the right sill beam 120 and is respectively connected to the second middle-channel side beam 250 and the right sill beam 120. The connecting bracket 313 is arranged above the middle-channel side beam 200 and is respectively connected to the first middle-channel side beam 240 and the second middle-channel side beam 250.

[0068] By dividing the first seat crossbeam 310 into multiple sub-segments, it is beneficial to simplify the structure of the first seat crossbeam 310, and it is convenient for the first sub-segment 311 to be connected between the first middle channel side beam 240 and the left sill beam 110, and for the second sub-segment 312 to be connected between the second middle channel side beam 250 and the right sill beam 120. After installation, the upper surfaces of the first sub-segment 311 and the second sub-segment 312 can be at the same height as the upper surface of the middle channel side beam 200, thereby avoiding the excessive height of the first seat crossbeam 310. The first seat crossbeam 310 will not overly occupy space in the up and down direction, and the structural setting is more reasonable.

[0069] Moreover, by providing the connecting bracket 313 and connecting the connecting bracket 313 to the first middle channel side beam 240 and the second middle channel side beam 250 respectively, that is, the left and right ends of the connecting bracket 313 are connected to the first middle channel side beam 240 and the second middle channel side beam 250 respectively, this can further improve the overall connection strength of the front floor assembly 1.

[0070] In addition, it should be noted that the connecting bracket 313 can also be used as a seat mounting bracket to provide a mounting position for the fixation of the seat.

[0071] In some specific embodiments of the present invention, as Figures 1-4 shown, the front floor assembly 1 further includes a first auxiliary longitudinal beam 410, a second auxiliary longitudinal beam 420, a first auxiliary crossbeam 430, and a second auxiliary crossbeam 440.

[0072] The first auxiliary longitudinal beam 410 extends in the front-rear direction and is respectively connected to the front crossbeam 130 and the first sub-segment 311. Among them, the first auxiliary longitudinal beam 410 can be arranged between the left sill beam 110 and the first middle channel side beam 240. And, flanges can be provided on the opposite sides in the width direction of the first auxiliary longitudinal beam 410 to enhance the structural strength of the first auxiliary longitudinal beam 410, and can increase the connection area between the first auxiliary longitudinal beam 410 and other components, making the connection more stable.

[0073] By adding the first auxiliary longitudinal beam 410, this can utilize the first auxiliary longitudinal beam 410 to strengthen the connection strength between the front crossbeam 130 and the first sub-segment 311, so as to improve the connection stability between the front crossbeam 130 and the first sub-segment 311.

[0074] In addition, the second auxiliary longitudinal beam 420 extends in the front-rear direction and is respectively connected to the front crossbeam 130 and the second sub-segment 312. Among them, the second auxiliary longitudinal beam 420 can be arranged between the right sill beam 120 and the second middle channel side beam 250. And, flanges can be provided on the opposite sides in the width direction of the second auxiliary longitudinal beam 420 to enhance the structural strength of the second auxiliary longitudinal beam 420, and can increase the connection area between the second auxiliary longitudinal beam 420 and other components, making the connection more stable.

[0075] By adding a second auxiliary longitudinal beam 420, the connection strength between the front cross beam 130 and the second sub-section 312 can be enhanced by utilizing the second auxiliary longitudinal beam 420, so as to improve the connection stability between the front cross beam 130 and the second sub-section 312.

[0076] In addition, the first auxiliary cross beam 430 extends in the left-right direction and is respectively connected to the left sill beam 110 and the first middle channel side beam 240. Among them, the first auxiliary cross beam 430 can be arranged between the second seat cross beam 320 and the rear cross beam 140, and flanges can be provided on the opposite sides in the width direction of the first auxiliary cross beam 430 to enhance the structural strength of the first auxiliary cross beam 430 and increase the connection area between the first auxiliary cross beam 430 and other components, making the connection more stable.

[0077] By adding the first auxiliary cross beam 430, the connection strength between the left sill beam 110 and the first middle channel side beam 240 can be enhanced by utilizing the first auxiliary cross beam 430, so as to improve the connection stability between the left sill beam 110 and the first middle channel side beam 240.

[0078] In addition, the second auxiliary cross beam 440 extends in the left-right direction and is respectively connected to the right sill beam 120 and the second middle channel side beam 250. Among them, the second auxiliary cross beam 440 can be arranged between the second seat cross beam 320 and the rear cross beam 140, and flanges can be provided on the opposite sides in the width direction of the second auxiliary cross beam 440 to enhance the structural strength of the second auxiliary cross beam 440 and increase the connection area between the second auxiliary cross beam 440 and other components, making the connection more stable.

[0079] By adding the second auxiliary cross beam 440, the connection strength between the right sill beam 120 and the second middle channel side beam 250 can be enhanced by utilizing the second auxiliary cross beam 440, so as to improve the connection stability between the right sill beam 120 and the second middle channel side beam 250.

[0080] Moreover, by adding the first auxiliary longitudinal beam 410, the second auxiliary longitudinal beam 420, the first auxiliary cross beam 430 and the second auxiliary cross beam 440, multiple force transmission paths can be formed in the structure of the front floor assembly 1. When the front floor assembly 1 is impacted, the impact force will be dispersed along multiple force transmission paths, and then multiple components of the front floor assembly 1 can participate in the collision force transmission, and the anti-collision performance of the front floor assembly 1 is better.

[0081] In some specific embodiments of the present invention, as Figure 1 and Figure 3 shown, the front floor assembly 1 further includes a first floor panel 510, a second floor panel 520, a first middle channel panel 530 and a second middle channel panel 540.

[0082] The first floor panel 510 is disposed between the left sill beam 110 and the first center tunnel side beam 240, and the first floor panel 510 is respectively connected to the left sill beam 110, the first center tunnel side beam 240, the front cross beam 130 and the rear cross beam 140.

[0083] Specifically, the first floor panel 510 can not only be connected to the left sill beam 110, the first center tunnel side beam 240, the front cross beam 130 and the rear cross beam 140, but also be connected to the first auxiliary longitudinal beam 410, the first sub-section 311, the second seat cross beam 320 and the first auxiliary cross beam 430. This can enable the first floor panel 510 to perform multi-point connection, and further strengthen the connection stability of the first floor panel 510.

[0084] In addition, the second floor panel 520 is disposed between the right sill beam 120 and the second center tunnel side beam 250, and the second floor panel 520 is respectively connected to the right sill beam 120, the second center tunnel side beam 250, the front cross beam 130 and the rear cross beam 140.

[0085] Specifically, the second floor panel 520 can not only be connected to the right sill beam 120, the second center tunnel side beam 250, the front cross beam 130 and the rear cross beam 140, but also be connected to the second auxiliary longitudinal beam 420, the second sub-section 312, the second seat cross beam 320 and the second auxiliary cross beam 440. This can enable the second floor panel 520 to perform multi-point connection, and further strengthen the connection stability of the second floor panel 520.

[0086] In addition, the first center tunnel panel 530 is disposed between the first center tunnel side beam 240 and the second center tunnel side beam 250, and the first center tunnel panel 530 is respectively connected to the first center tunnel side beam 240, the second center tunnel side beam 250, the front side of the second seat cross beam 320 and the front cross beam 130. That is, the first center tunnel panel 530 is the front panel of the center tunnel. With such a setting, the first center tunnel panel 530 can be connected to multiple components simultaneously, which is beneficial to improving the connection stability of the first center tunnel panel 530 and making the fixation more reliable.

[0087] In addition, the second center tunnel panel 540 is disposed between the first center tunnel side beam 240 and the second center tunnel side beam 250, and the second center tunnel panel 540 is respectively connected to the first center tunnel side beam 240, the second center tunnel side beam 250, the rear side of the second seat cross beam 320 and the rear cross beam 140. That is, the second center tunnel panel 540 is the rear panel of the center tunnel. With such a setting, the second center tunnel panel 540 can be connected to multiple components simultaneously, which is beneficial to improving the connection stability of the second center tunnel panel 540 and making the fixation more reliable.

[0088] Among them, flanges can be provided on the opposite sides in the width direction of the left sill beam 110, the opposite sides in the width direction of the right sill beam 120, the opposite sides in the width direction of the first middle channel side beam 240, the opposite sides in the width direction of the second middle channel side beam 250, the opposite sides in the width direction of the front cross beam 130, and the opposite sides in the width direction of the rear cross beam 140. This can not only increase the structural strength of the beam body itself, but also facilitate the connection with the floor panel through the flanges, making the connection more convenient and further improving the connection strength of the floor panel.

[0089] In some specific embodiments of the present utility model, such as Figures 5-7 As shown, the middle channel side beam 200 is configured with a communicating sound inlet 260 and a first sound cavity 270. The seat cross beam 300 is provided with a second sound cavity 330. The left sill beam 110 and the right sill beam 120 are provided with a third sound cavity. The second sound cavity 330 is respectively communicated with the first sound cavity 270 and the third sound cavity.

[0090] Among them, the front floor assembly 1 further includes a sound component 600, and the sound component 600 is connected to the middle channel side beam 200 and communicated with the sound inlet 260.

[0091] Among them, the sound component 600 can be arranged on the upper side of the floor panel, and multiple sound components 600 can be provided. The multiple speaker components are spaced apart in the left-right direction. The sound emitted by the sound component 600 can be transmitted to the first sound cavity 270 through the sound inlet 260, and sequentially transmitted to the second sound cavity 330 and the third sound cavity to realize the transmission of heavy bass.

[0092] For example, the sound inlet 260 can be arranged on the side of the middle channel side beam 200 facing the sill beam. For example, the side of the first middle channel side beam 240 facing the left sill beam 110 can be provided with the sound inlet 260, and the sound component 600 can be connected to the side of the first middle channel side beam 240 facing the left sill beam 110; and, the side of the second middle channel side beam 250 facing the right sill beam 120 can be provided with the sound inlet 260, and the sound component 600 can be connected to the side of the second middle channel side beam 250 facing the right sill beam 120.

[0093] In addition, a plurality of through holes 280 can be provided along the length direction of the middle channel side beam 200. For example, four through holes 280 can be provided on the side wall of the first section 210, and two through holes 280 can be provided on the side wall of the second section 220, so as to communicate the first sound cavity 270 with the second sound cavity 330 in the first seat cross beam 310 and the second seat cross beam 320 respectively through the plurality of through holes 280, and can avoid the relatively large influence of the through holes 280 on the strength of the middle channel side beam 200 to ensure that the middle channel side beam 200 has a relatively large structural strength.

[0094] In addition, the center tunnel side beam 200, the left sill beam 110, the right sill beam 120, the front cross beam 130, the rear cross beam 140, and the seat cross beam 300 can all be made of aluminum alloy materials and processed and formed by using the processes of extruded aluminum alloy and bent aluminum. The beam body can form a cavity that penetrates internally, and the exterior of the beam body is closed. This can reduce the weight of multiple beam bodies, and further reduce the overall weight of the front floor assembly 1, thereby improving the endurance of the vehicle. Moreover, reinforcing ribs 700 can be provided inside the center tunnel side beam 200, the left sill beam 110, the right sill beam 120, the front cross beam 130, the rear cross beam 140, and the seat cross beam 300. This can strengthen the structural strength of the beam body, and further improve the overall structural strength of the front floor assembly 1.

[0095] In some embodiments of the present invention, the structure of the front floor assembly 1 can be modified to adapt to different vehicle models, which can improve the adaptability of the front floor assembly 1 and reduce costs.

[0096] For example, if the front floor assembly 1 is applied to FCEV (Fuel Cell Electric Vehicle) and BEV (Battery Electric Vehicle), the front floor assembly 1 can be made universal. The battery pack and hydrogen tank of the FCEV model can be fixed to the lower side of the front floor assembly 1, and the battery pack of the BEV model can also be directly fixed to the lower side of the front floor assembly 1.

[0097] In addition, when the front floor assembly 1 is applied to a PHEV (Plug-in Hybrid Electric Vehicle) model, since the battery pack of the PHEV model is relatively small, cross beams and longitudinal beams can be added to the lower side of the front floor assembly 1 at this time to fix the battery pack of the PHEV model through the added cross beams and longitudinal beams, and there is no need to modify other structures of the front floor assembly 1, and the assembly is simpler and the universality is higher.

[0098] Next, a vehicle according to an embodiment of the present invention will be described with reference to the accompanying drawings. The vehicle includes the front floor assembly 1 according to the above embodiments of the present invention.

[0099] For the vehicle according to an embodiment of the present invention, by using the front floor assembly 1 according to the above embodiments of the present invention, the center tunnel side beam 200 of the front floor assembly 1 can transmit the collision force to the seat cross beam 300 through the support step 230. Furthermore, the center tunnel side beam 200 and the seat cross beam 300 can jointly bear the force, which is beneficial to improving the frontal collision resistance of the front floor assembly 1.

[0100] The front floor assembly 1 according to the embodiments of the present utility model, as well as other components and operations of the vehicle, are known to those of ordinary skill in the art and will not be described in detail herein.

[0101] In the description of this specification, the descriptions referring to terms such as "specific embodiments", "specific examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0102] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A front floor assembly (1), characterized in that: include: A left sill beam (110), a right sill beam (120), a front cross beam (130) and a rear cross beam (140), wherein two ends of the front cross beam (130) and two ends of the rear cross beam (140) are respectively connected to the left sill beam (110) and the right sill beam (120); A middle channel side beam (200), the middle channel side beam (200) extending in a front-rear direction and comprising a first section (210) and a second section (220), the first section (210) being connected to the front cross beam (130), and the second section (220) being connected to the rear cross beam (140); A seat cross beam (300), wherein the seat cross beam (300) is disposed above the middle channel side beam (200), and two ends of the seat cross beam (300) are respectively connected to the left door sill beam (110) and the right door sill beam (120); The upper side surface of the first section (210) protrudes from the upper side surface of the second section (220) and forms a support step (230), and the support step (230) stops at the front side surface of the seat cross beam (300).

2. The front floor assembly (1) according to claim 1, characterized in that: There are a plurality of seat cross beams (300), and the plurality of seat cross beams (300) include a first seat cross beam (310) and a second seat cross beam (320), wherein the first seat cross beam (310) is arranged on the front side of the second seat cross beam (320), and the second seat cross beam (320) is arranged above the middle channel side beam (200) and the front side surface of the second seat cross beam (320) abuts against the support step (230).

3. The front floor assembly (1) according to claim 2, characterized in that: Both ends of the second seat cross beam (320) are configured with a plurality of energy absorbing holes (321) arranged at intervals.

4. The front floor assembly (1) according to claim 2, characterized in that: There are multiple middle channel side beams (200), and the multiple middle channel side beams (200) include a first middle channel side beam (240) and a second middle channel side beam (250), the first middle channel side beam (240) and the second middle channel side beam (250) are arranged at intervals along the left-right direction, and the supporting steps (230) of the first middle channel side beam (240) and the supporting steps (230) of the second middle channel side beam (250) respectively stop at the front side of the seat cross beam (300).

5. The front floor assembly (1) according to claim 4, characterized in that: The lower side surface of the second seat cross beam (320) is recessed upward to form an avoidance gap (322), and the first middle channel side beam (240) and the second middle channel side beam (250) are both arranged in the avoidance gap (322); Wherein, in the left-right direction, the first middle channel side beam (240) stops at one side wall of the avoidance gap (322), and the second middle channel side beam (250) stops at the other side wall of the avoidance gap (322).

6. The front floor assembly (1) according to claim 4, characterized in that: The first seat cross beam (310) comprises: a first subsection (311), the first subsection (311) being arranged between the first middle channel side beam (240) and the left sill beam (110) and being respectively connected to the first middle channel side beam (240) and the left sill beam (110); a second subsection (312), the second subsection (312) being arranged between the second middle channel side beam (250) and the right sill beam (120) and being respectively connected to the second middle channel side beam (250) and the right sill beam (120); A connecting bracket (313), wherein the connecting bracket (313) is disposed above the middle channel side beam (200) and is respectively connected to the first middle channel side beam (240) and the second middle channel side beam (250).

7. The front floor assembly (1) according to claim 6, characterized in that: Also includes: a first secondary longitudinal beam (410) and a second secondary longitudinal beam (420), wherein the first secondary longitudinal beam (410) extends in the front-to-rear direction and is respectively connected to the front cross beam (130) and the first sub-segment (311), and the second secondary longitudinal beam (420) extends in the front-to-rear direction and is respectively connected to the front cross beam (130) and the second sub-segment (312); A first secondary cross beam (430) and a second secondary cross beam (440), wherein the first secondary cross beam (430) extends in the left-right direction and is respectively connected to the left sill beam (110) and the first middle channel side beam (240), and the second secondary cross beam (440) extends in the left-right direction and is respectively connected to the right sill beam (120) and the second middle channel side beam (250).

8. The front floor assembly (1) according to claim 4, characterized in that: Also includes: a first floor panel (510), the first floor panel (510) being arranged between the left sill beam (110) and the first middle channel side beam (240), and the first floor panel (510) being respectively connected to the left sill beam (110), the first middle channel side beam (240), the front cross beam (130) and the rear cross beam (140); a second floor panel (520), the second floor panel (520) being arranged between the right sill beam (120) and the second middle channel side beam (250), and the second floor panel (520) being respectively connected to the right sill beam (120), the second middle channel side beam (250), the front cross beam (130) and the rear cross beam (140); a first middle channel panel (530), the first middle channel panel (530) being arranged between the first middle channel side beam (240) and the second middle channel side beam (250), and the first middle channel panel (530) being respectively connected to the first middle channel side beam (240), the second middle channel side beam (250), the front side surface of the second seat cross beam (320) and the front cross beam (130); A second middle channel panel (540), wherein the second middle channel panel (540) is arranged between the first middle channel side beam (240) and the second middle channel side beam (250), and the second middle channel panel (540) is respectively connected to the first middle channel side beam (240), the second middle channel side beam (250), the rear side surface of the second seat cross beam (320) and the rear cross beam (140).

9. The front floor assembly (1) according to claim 1, characterized in that: The middle channel side beam (200) is configured with a connected sound inlet (260) and a first sound cavity (270), the seat cross beam (300) is provided with a second sound cavity (330), the left sill beam (110) and the right sill beam (120) are provided with a third sound cavity, and the second sound cavity (330) is respectively connected to the first sound cavity (270) and the third sound cavity; Wherein, the front floor assembly (1) further comprises an audio component (600), wherein the audio component (600) is connected to the middle channel side beam (200) and communicates with the sound inlet (260).

10. A vehicle, characterized in that: It comprises a front floor assembly (1) according to any one of claims 1 to 9.

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