Seat supporting framework assembly, mounting structure of seat supporting framework assembly and vehicle

Abstract

The invention provides a seat supporting framework assembly, a mounting structure of the seat supporting framework assembly and a vehicle, and belongs to the technical field of vehicles, the seat supporting framework assembly comprises a front supporting beam, a middle supporting beam and a front supporting framework body, and the front supporting beam extends in the left-right direction of a vehicle body; the middle supporting beam is parallel to the front supporting beam; the front end of the front supporting framework body is connected to the front supporting beam, and the rear end of the front supporting framework body is connected to the middle supporting beam to form a frame type structure. And the middle part of the front support framework body arches upwards and is embedded into the seat cushion assembly. According to the matched installation structure of the seat supporting framework assembly, the seat cushion assembly and the middle floor assembly, the design advantages of being high in strength, low in weight, safe and comfortable are effectively achieved, and meanwhile the platform design of the seat supporting structure is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicles, and in particular relates to a seat support frame assembly, a mounting structure of the seat support frame assembly and a vehicle. Background Art

[0002] The seat support frame assembly is installed on the center floor assembly and is located under the seat cushion. It is used to support the seat cushion, keep the seat in the correct position, and prevent the seat from diving.

[0003] The existing seat support frame assembly has the following defects:

[0004] (1) The seat support frame assembly has a complex structural design and is heavy. The structure itself does not support platform strategy application. It needs to be redeveloped when expanding its application to different vehicle models, resulting in high application costs and poor compatibility.

[0005] (2) The anti-submarine structure of the seat support frame assembly is poor, and the vehicle is prone to large displacement deformation under collision and other working conditions, resulting in high injury value for passengers;

[0006] (3) The main structure and connection matching of the seat support frame assembly have poor vibration absorption performance. The vibration source from the floor can be easily transmitted to the seating area through the seat support frame assembly, resulting in poor riding comfort. Summary of the invention

[0007] The embodiments of the present invention provide a seat support frame assembly, a mounting structure of the seat support frame assembly and a vehicle, aiming to solve the problems of poor platformization, poor compatibility, high application cost, poor anti-submarine capability and poor comfort of the seat support frame assembly.

[0008] In the first aspect, an embodiment of the present invention provides a seat support frame assembly, comprising: a front support beam, a middle support beam and a front support frame body, wherein the front support beam extends along the left-right direction of the vehicle body; the middle support beam is parallel to the front support beam; the front support frame body has its front end connected to the front support beam and its rear end connected to the middle support beam to form a frame structure; the middle portion of the front support frame body is arched upward and embedded in the seat cushion assembly.

[0009] In combination with the first aspect, in an achievable manner, the front support frame body includes two groups of first front support frames and two groups of second front support frames, the two groups of the first front support frames are symmetrically arranged at the left and right ends of the front support beam and the middle support beam; the two groups of the second front support frames are symmetrically arranged between the two groups of the first front support frames.

[0010] In combination with the first aspect, in a feasible manner, the front support frame body also includes a side reinforcement structure arranged at the left and right ends of the front support beam; the side reinforcement structure includes a first side beam, a cable-stayed beam, a reinforced side beam and a second side beam, the second side beam is connected to the left end or the right end of the middle support beam, the cable-stayed beam is connected between the front support beam and the second side beam, the first side beam is connected to the left side or the right side of the second side beam, and the reinforced side beam is connected between the cable-stayed beam and the first side beam; after the various components of the side reinforcement structure are connected, a triangular reinforcement structure is formed.

[0011] In combination with the first aspect, in an achievable manner, the front support frame body also includes two groups of rear support frames and two groups of rear support beams; the front end of the rear support frame is connected to the middle support beam and to the rear end of the second front support frame; the rear support beam is connected between the rear support frame and the second side beam.

[0012] In combination with the first aspect, in an achievable manner, the front support frame body also includes a rear support reinforcement beam connected between the rear support frame and the rear support beam, and the rear support frame, the rear support beam and the rear support reinforcement beam are connected to form a triangular reinforcement structure.

[0013] In combination with the first aspect, in one achievable manner, the first front support frame, the second front support frame, the rear support frame, the front support beam and the middle support beam are all porous structures.

[0014] In combination with the first aspect, in an achievable manner, the front support frame body also includes a front panel and a rear panel, the left and right ends of the front panel are connected to two groups of the second front support frames, and the rear end of the front panel is connected to the middle support beam; the rear panel is laid along the left and right directions of the vehicle body, the left and right ends are respectively connected to the second side beams, the middle part is connected to the rear support frame, and the rear end is connected to the rear support beam; the rear end of the front panel is connected to the front end of the rear panel.

[0015] Compared with the prior art, the seat support frame assembly provided by the present invention has the following beneficial effects:

[0016] (1) The front support beam and the middle support beam that pass through the left and right directions are used as supports. The front support frame body is connected to the front support beam and the middle support beam in an arch shape, forming a frame structure with high integrated strength. For different vehicle models, the distance between the front support beam and the middle support beam can be adjusted to adapt to different vehicle models. The front support frame body is an arch structure, and the vertical height of the front support frame body can be lowered or raised by changing the curvature of the front support frame body to adapt to the seat design and installation requirements of different vehicle models and meet the platform application of different vehicle models. This greatly improves the universality, platformization and compatibility of the seat support frame assembly, reduces the cost of re-research and development design and production and other application costs, and solves the technical problems of high cost and poor platform application of the seat support frame assembly.

[0017] (2) A front support beam and a middle support beam that are through the left and right directions are designed as supports. The front support frame body is connected to the front support beam and the middle support beam in an arched shape, forming a frame structure with high integrated strength. This can alleviate the problem of the seat cushion support frame assembly diving, improve the deformation resistance of the seat support frame assembly, and reduce the risk of injury to the driver and passengers due to displacement and deformation of the seat during a vehicle collision.

[0018] In the second aspect, an embodiment of the present invention also provides an installation structure of a seat support frame assembly, including the seat support frame assembly and the middle floor assembly; a plurality of installation brackets are dispersedly arranged on the left and right directions of the front support beam of the seat support frame assembly, and a mounting plate corresponding to the mounting brackets is arranged on the middle floor assembly, and the mounting plate is connected to the middle floor assembly to form a semi-closed cavity structure, and the lower end of the mounting bracket is connected to the mounting plate.

[0019] In combination with the second aspect, in an achievable manner, the rear end of the rear support frame of the seat support frame assembly is connected to the middle floor assembly; the middle floor assembly includes a middle floor and a middle cross beam structure connected to the rear end of the middle floor; the middle cross beam structure extends along the left and right directions of the vehicle body, and the middle cross beam structure includes a middle cross beam connected above the middle floor, a middle cross beam lower plate connected below the middle cross beam, and a middle cross beam upper plate connected above the middle cross beam, and the middle cross beam upper plate, the middle cross beam, the middle floor and the middle cross beam lower plate are connected to form a multi-cavity vertical stacking structure; the rear support frame is connected to the multi-cavity vertical stacking structure.

[0020] Compared with the prior art, the installation structure of the seat support frame assembly provided by the present invention has the following beneficial effects: the installation connection position of the seat support frame assembly and the middle floor assembly constitutes a semi-closed cavity structure, realizing a high-rigidity vibration-absorbing design of the installation point and the main structure, effectively blocking and absorbing the transmission of external vibrations in the connection structure, and improving the NVH performance of the overall structure, thereby being able to attenuate the excitation force from the vibration source of the floor transmitted to the seating area through the seat support frame assembly, thereby improving the comfort of passengers and drivers.

[0021] In a third aspect, an embodiment of the present invention further provides a vehicle, comprising the installation structure of the seat support frame assembly.

[0022] The vehicle provided by the embodiment of the present invention reduces the production cost of the entire vehicle and improves the brand value of the entire vehicle due to the good platformization, compatibility, anti-submarine capability and comfort of the seat support frame assembly and its installation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional structure diagram of a seat support frame assembly provided by an embodiment of the present invention Figure 1 ;

[0024] Figure 2 A three-dimensional structure diagram of a seat support frame assembly provided by an embodiment of the present invention Figure 2 ;

[0025] Figure 3 for Figure 1 A local enlarged schematic diagram of the middle A;

[0026] Figure 4 for Figure 1 A partial enlarged schematic diagram of point B in the middle;

[0027] Figure 5 For along Figure 2 Cross-sectional structural diagram of the center CC line;

[0028] Figure 6 For along Figure 2 Cross-sectional structural diagram of the middle DD line;

[0029] Figure 7 A schematic diagram of the three-dimensional structure of a seat cushion assembly provided by an embodiment of the present invention;

[0030] Figure 8 For along Figure 7 The cross-sectional structure diagram of the EE line;

[0031] Fig. 9 A schematic diagram of the three-dimensional structure of the installation structure of the seat support frame assembly provided by an embodiment of the present invention;

[0032] Fig.10For along Fig. 9 Cross-sectional structural diagram of the middle FF line;

[0033] Fig.11 For along Fig. 9 Cross-sectional structural diagram of the middle GG line;

[0034] Fig.12 A schematic diagram of the three-dimensional structure of the installation structure of the seat cushion assembly and the seat support frame assembly provided by an embodiment of the present invention;

[0035] Fig.13 For along Fig.12 The cross-sectional structure diagram of the middle HH line;

[0036] Description of reference numerals:

[0037] 1. The first front support frame; 2. The second front support frame; 3. The front support beam; 4. The mounting bracket; 5. The reinforced side beam; 6. The diagonal beam; 7. The second side beam; 8. The first side beam; 9. The supporting bracket; 10. The rear support beam; 11. The rear support reinforcement beam; 12. The rear support frame; 13. The middle support beam; 14. The front panel; 15. The rear panel; 16. The sleeve; 17. The seat cushion assembly; 18. The middle floor body; 19. The mounting plate; 20. The semi-enclosed cavity structure; 21. The front cross beam supplementary plate of the middle floor; 22. The front cross beam of the middle floor; 23. The vertical stacking structure of multiple cavities; 24. The lower plate of the middle cross beam; 25. The middle cross beam; 26. The upper plate of the middle cross beam; 27. The cavity overlap edge connection structure; 28. The outer reinforcement plate of the front cross beam of the middle floor; 29. ​​The connecting plate of the middle floor; 30. The inner reinforcement plate of the front cross beam of the middle floor. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] It should be noted that, in the description of the present invention, the front and rear positions are consistent with the front and rear orientation of the vehicle body, the left and right orientation is consistent with the left and right orientation of the vehicle body, and the upper and lower orientation is consistent with the upper and lower orientation of the vehicle body. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0040] Please also read Figure 1 and Figure 2The seat support frame assembly provided by the present invention is now described. The seat support frame assembly comprises: a front support beam 3, a middle support beam 13 and a front support frame body, wherein the front support beam 3 extends in the left-right direction of the vehicle body; the middle support beam 13 is parallel to the front support beam 3; the front support frame body has its front end connected to the front support beam 3 and its rear end connected to the middle support beam 13, forming a frame structure; the middle part of the front support frame body is arched upward and embedded in the seat cushion assembly 17.

[0041] Compared with the prior art, the seat support frame assembly provided by the present invention has the following beneficial effects:

[0042] (1) The front support beam 3 and the middle support beam 13 that pass through the left and right directions serve as supports. The front support frame body is connected to the front support beam 3 and the middle support beam 13 in an arched shape, forming a frame structure with the characteristics of high integrated strength. For different vehicle models, the distance between the front support beam 3 and the middle support beam 13 can be adjusted to adapt to different vehicle models. The front support frame body is an arched structure, and the vertical height of the front support frame body can be lowered or raised by changing the curvature of the front support frame body to adapt to the seat design requirements and installation requirements of different vehicle models and meet the platform application of different vehicle models, which greatly improves the universality, platformization and compatibility of the seat support frame assembly, reduces the cost of re-research and development design and production and other application costs, and solves the technical problems of high cost and poor platform application of the seat support frame assembly.

[0043] (2) The front support beam 3 and the middle support beam 13 that are through in the left and right directions are designed as supports. The front support frame body is connected to the front support beam 3 and the middle support beam 13 in an arch shape, forming a frame structure with high integrated strength. It can alleviate the problem of the seat cushion support frame assembly diving, improve the deformation resistance of the seat support frame assembly, and reduce the risk of injury to the driver and passengers due to displacement and deformation of the seat during a vehicle collision.

[0044] For example, based on the platform structure advantage of the seat support frame assembly, when expanding the application of new models, two front support frames (the first front support frame 1 and the second front support frame 2) can be redeveloped according to the anti-diving Z-direction (up and down direction) height design requirements. According to the structural conditions, they can be designed as left and right universal parts. The redeveloped parts can be reduced to two parts, and other main components can be completely borrowed, effectively reducing the design and development costs; or, according to the anti-diving Z-direction (up and down direction) height design requirements, it is only necessary to change the curvature of the two front support frames.

[0045] In some embodiments, Figure 1 and Figure 2As shown, the front support frame body includes two groups of first front support frames 1 and two groups of second front support frames 2. The two groups of first front support frames 1 are symmetrically arranged at the left and right ends of the front support beam 3 and the middle support beam 13; the two groups of second front support frames 2 are symmetrically arranged between the two groups of first front support frames 1. Specifically, the first front support frame 1 and the second front support frame 2 are both arched structures, both arched upward, and the first front support frame 1 and the second front support frame 2 are both vertically connected to the front support beam 3 and the middle support beam 13, and are arranged parallel to each other along the left and right directions of the vehicle body; the spacing between adjacent front support frames is basically the same, ensuring the uniformity of the support for the upper seat body, forming a support frame to prevent the seat from diving.

[0046] In some embodiments, Figures 1 to 3 As shown, the front support frame body also includes a side reinforcement structure arranged at the left and right ends of the front support beam 3; the side reinforcement structure includes a first side beam 8, a diagonal beam 6, a reinforced side beam 5 and a second side beam 7, the second side beam 7 is connected to the left end or the right end of the middle support beam 13, the diagonal beam 6 is connected between the front support beam 3 and the second side beam 7, the first side beam 8 is connected to the left side or the right side of the second side beam 7, and the reinforced side beam 5 is connected between the diagonal beam 6 and the first side beam 8; after the components of the side reinforcement structure are connected, a triangular reinforcement structure (such as Figure 3 shown).

[0047] The weak rigidity positions of the frame-type seat support skeleton assembly are concentrated at the intersection of the side horizontal and vertical supports. In order to solve the technical problem of weak side rigidity, a "triangle" double-reinforced connection structure is designed at the intersection of the horizontal and vertical skeletons on the left and right sides of the seat support skeleton assembly; taking the left side of the seat support skeleton assembly as an example, the structural details are that the second side beam 7 is fixedly connected to the left end of the middle support beam 13, and the first side beam 8 is reinforced by a double overlapping design on the outer side or left side of the second side beam 7, and is connected with the reinforced side beam 5 and the cable-stayed beam 6 in a triangular intersection, achieving high-strength reinforcement of the structural intersection, improving the anti-diving performance of the seat, and improving the anti-collision deformation performance of the seat support skeleton assembly, ensuring the safety and comfort of the driver and passengers.

[0048] When applied in a platform form, the size of the triangular reinforcement structure can be changed by simply changing the length of any one of the second side beam 7, the cable-stayed beam 6 or the reinforced side beam 5. Moreover, these components are relatively small in size, which will not increase the production cost and is easy to adapt to the flexible application of the platform.

[0049] In some embodiments, Figure 1 and Figure 2As shown, the front support frame body also includes two groups of rear support frames 12 and two groups of rear support beams 10; the front end of the rear support frame 12 is connected to the middle support beam 13 and connected to the rear end of the second front support frame 2; the rear support beam 10 is connected between the rear support frame 12 and the second side beam 7. Specifically, the two groups of rear support frames 12 and the two groups of rear support beams 10 are symmetrically arranged in the left and right directions, the rear support frame 12 is vertically connected to the second front support frame 2 in the middle position, and the rear support frame 12 extends to the rear of the vehicle body to provide strength support for the backrest position of the seat body; at the same time, the rear support beam 10 is parallel to the middle support beam 13, and is connected to the edge reinforcement structures on the left and right sides to form an integrated rectangular frame, which not only improves the reinforcement strength of the edge reinforcement structure, but also improves the overall support stiffness of the seat support frame assembly, which can improve the anti-diving performance of the seat, improve the anti-collision deformation performance of the seat support frame assembly, and ensure the safety and comfort of the driver and passengers.

[0050] When used in a platform-based application, the rear support frame 12 and the rear support beam 10 can be directly used as the main components to adapt to the flexible application of the platform.

[0051] In some embodiments, Figure 1 , Figure 2 and Figure 4 As shown, the front support frame body also includes a rear support reinforcement beam 11 connected between the rear support frame 12 and the rear support beam 10. The rear support frame 12, the rear support beam 10 and the rear support reinforcement beam 11 are connected to form a triangular reinforcement structure.

[0052] The weak rigidity positions of the frame-type seat support skeleton structure are concentrated at the intersection of the side and rear horizontal and vertical support members. In order to solve the technical problem of weak rigidity, edge reinforcement structures are arranged on the left and right sides. The intersection of the rear support skeleton 12 and the rear support beam 10 vertical and horizontal skeletons is also a position of weak rigidity. Therefore, a "triangle" connection structure is designed at the intersection of the rear horizontal and vertical skeletons. The rear support reinforcement beam 11 is used to diagonally pull the rear support skeleton 12 and the rear support beam 10 to form a triangular reinforcement, thereby achieving a stable improvement in structural strength and improving the overall support rigidity of the seat support skeleton assembly. It can improve the anti-diving performance of the seat, improve the anti-collision deformation performance of the seat support skeleton assembly, and ensure the safety and comfort of the driver and passengers.

[0053] When used in a platform-based application, the size of the triangular reinforcement structure can be changed by simply replacing the rear support reinforcement beam 11. Moreover, these components are relatively small in size, which will not increase the production cost and is easy to adapt to the flexible application of the platform.

[0054] In some embodiments, Figure 5 and Figure 6As shown, the first front support frame 1, the second front support frame 2, the rear support frame 12, the front support beam 3 and the middle support beam 13 are all porous structures. Among them, the first side beam 8, the second side beam 7, the reinforced side beam 5, the cable-stayed beam 6 and the rear support reinforced beam 11 are all single-hole or multi-hole structures.

[0055] The anti-diving performance of the seat support frame assembly provides stable support for the seat cushion, and also needs to simultaneously meet the structural functions of sound insulation and noise reduction and safety and comfort. All components in the seat support frame assembly of the present invention adopt a contoured hollow multi-cavity superimposed design structure, and the design structure is contoured along the seat cushion matching area, which effectively and stably supports while reducing the redundant weight of the structure, achieving the structural advantages of high rigidity and low weight.

[0056] The anti-diving matching structure design of the seat support frame assembly adopts a honeycomb cavity connection structure, which utilizes the advantages of multi-cavity superposition and porous cavity cross-section vibration absorption to absorb the sound noise transmitted from the vehicle body floor and improve overall comfort.

[0057] In some embodiments, Figure 2 As shown, the front support frame body also includes a front panel 14 and a rear panel 15. The left and right ends of the front panel 14 are connected to the two groups of second front support frames 2, and the rear end of the front panel 14 is connected to the middle support beam 13. The rear panel 15 is laid along the left and right directions of the vehicle body, and its left and right ends are respectively connected to the second side beam 7, the middle part is connected to the rear support frame 12, and the rear end is connected to the rear support beam 10; the rear end of the front panel 14 is connected to the front end of the rear panel 15.

[0058] The front panel 14 and the rear panel 15 further enhance the integrity of the seat support frame assembly and provide reliable support for the seat body to prevent it from diving. At the intersection of the second side beam 7 and the middle support beam 13, a support bracket 9 is obliquely arranged to support the rear panel 15, and a mounting point is formed at the position of the support bracket 9 to be fixed to the middle floor assembly below.

[0059] The seat support frame assembly and the seat cushion assembly 17 provided by the present invention are designed to match the position of the seat support frame assembly 1 and the seat cushion assembly 17. Figure 7 and Figure 8 As shown, the seat cushion assembly 17 and the seat support frame assembly matching structure adopt a recessed design (such as Figure 8 The material at the matching position of the seat cushion assembly 17 is removed to meet the lightweight design requirements of the seat cushion assembly 17. At the same time, the internal space of the seat cushion assembly 17 is efficiently improved after the material is removed, providing effective application space for arranging internal functional parts, for example, seat cooling fans and heating structures can be arranged. The seat cushion assembly 17 and the seat support frame assembly are embedded, achieving a double weight reduction effect of the seat support frame assembly and the seat cushion assembly 17.

[0060] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0061] Based on the same inventive concept, Fig. 9 and Fig.10 As shown, the embodiment of the present application also provides an installation structure of a seat support frame assembly, including a seat support frame assembly and a middle floor assembly; a plurality of installation brackets 4 are dispersedly arranged on the left and right directions of the front support beam 3 of the seat support frame assembly, and a mounting plate 19 corresponding to the mounting bracket 4 is arranged on the middle floor assembly, and the mounting plate 19 is connected to the middle floor assembly to form a semi-closed cavity structure 20, and the lower end of the installation bracket 4 is connected to the mounting plate 19.

[0062] Compared with the prior art, the installation structure of the seat support frame assembly provided by the present invention has the following beneficial effects: the installation connection position of the seat support frame assembly and the middle floor assembly constitutes a semi-closed cavity structure 20, realizing a high-rigidity vibration-absorbing design of the installation point and the main structure, effectively blocking and absorbing the transmission of external vibrations in the connection structure, and improving the NVH performance of the overall structure, thereby being able to attenuate the excitation force transmitted from the vibration source of the floor to the seating area through the seat support frame assembly, thereby improving the comfort of passengers.

[0063] The mounting plate 19 is connected to the center floor assembly to form a semi-enclosed cavity structure 20. Combined with the porous structure of the mounting bracket 4 and the porous structures of the various components of the seat support frame assembly, the seat support frame assembly has significant structural advantages in terms of sound insulation and noise reduction, and improved riding comfort.

[0064] Furthermore, if Figures 9 to 11 As shown, the rear end of the rear support frame 12 of the seat support frame assembly is connected to the middle floor assembly; the middle floor assembly includes a middle floor body 18 and a middle cross beam structure connected to the rear end of the middle floor body 18; the middle cross beam structure extends along the left and right directions of the vehicle body, and the middle cross beam structure includes a middle cross beam 25 connected to the top of the middle floor body 18, a middle cross beam lower plate 24 connected to the bottom of the middle cross beam 25, and a middle cross beam upper plate 26 connected to the top of the middle cross beam 25. The middle cross beam upper plate 26, the middle cross beam 25, the middle floor body 18 and the middle cross beam lower plate 24 are connected to form a multi-cavity vertical stacking structure 23; the rear support frame 12 is connected to the multi-cavity vertical stacking structure 23.

[0065] The mounting structure of the seat support frame assembly provided by the present invention is combined with the front panel 14, the rear panel 15, the rear support frame 12 and the rear support beam 10. In order to layout the strength of the connection, the support strength and reduce the multi-layer effect of the excitation source, it is preferred that the seat support frame assembly adopts a circumferential distribution fixed arrangement design (such as Fig. 9For example, mounting brackets 4 are provided below the four front support frames, that is, four mounting points are provided at the front support beam 3 (such as Fig. 9 b1, b11, b2, b22); two mounting points are designed on the left and right sides of the rear panel 15 of the seat support frame assembly (such as Fig. 9 b3, b33), the rear panel 15 is directly fixed on the middle floor assembly; two mounting points are designed at the rear of the seat support frame assembly (such as Fig. 9 b4, b44), specifically at the rear end of the rear support frame 12, the overall fixed number is designed to be eight, and is designed symmetrically along the left and right sides. The seat support frame assembly installation point arrangement structure is as follows Fig. 9 shown.

[0066] The structural strength and connection stiffness of the installation points of the seat support frame assembly play a key role in the performance of the frame vibration transmission, safety collision and so on. The structural design of each installation point is now described in detail. First, the four structures on the front support beam 3 are the same, and all use a semi-enclosed cavity structure 20 to bear the load. The installation bracket 4 and the middle floor body 18 form a semi-enclosed cavity with high strength structure to bear the load, so as to achieve the structural advantages of high connection strength and strong rigidity. Among them, the middle floor front cross beam supplement plate 21 is reinforced under the middle floor front cross beam 22; second, the two installation points of the rear panel 15 and the middle floor assembly both use a cavity overlap edge connection structure 27, and use the high-strength structural advantage of the overlap edge sheet metal of the middle floor front cross beam 22, the middle floor front cross beam inner reinforcement plate 30 and the middle floor connecting plate 29 to carry out the installation and load bearing. The middle floor front cross beam outer reinforcement plate 28 is reinforced on the outside or bottom of the middle floor front cross beam 22; the rear panel 15 and the middle floor front A sleeve 16 support is provided between the reinforcing plates 30 inside the cross beam, and the sleeve 16 is mounted on the mounting bolts to achieve a stable connection at the mounting point with high connection stiffness. Thirdly, the two mounting points of the rear support frame 12 and the middle floor assembly are located at the rear of the vehicle body. The mounting structure needs to resist the impact damage caused by a rear-end collision, and the structural connection strength needs to have an ultra-high connection strength, with a synchronous connection strength higher than that of other mounting points. To meet the technical performance requirements therein, the design structure adopts a three-cavity vertical stacking structure, which uses the vertical high-size stacking cavity structure formed by the stacking of the middle cross beam upper plate 26, the middle cross beam 25, the middle floor body 18 and the middle cross beam lower plate 24 to carry out connection and load-bearing, thereby fully improving the structural strength of the connection position, effectively resisting structural deformation of the seat area during a rear-end collision, and protecting the safety of rear passengers. The seat support frame assembly mounting structure is shown in FIG. Fig.10 and Fig.11 shown.

[0067] The seat support frame assembly has significant structural advantages in terms of sound insulation and noise reduction, and improving riding comfort. The vibration absorption and noise reduction principles are as follows: Fig.12 and Fig.13As shown, when the floor assembly is stimulated by external factors to form a vibration source, the vibration is transmitted along the mounting structure of the seat support frame to the mounting bolt area. The semi-enclosed cavity structure 20 of the mounting structure and the three-cavity vertical stacking structure and other high-rigidity design structures can effectively block the vibration. After the vibration is blocked, the vibration is transmitted along the mounting bolts to the seat support frame assembly; the seat support frame assembly adopts a multi-cavity cross-section stacking structure, which uses the vibration to swirl inside the cavity to offset and absorb the vibration energy to achieve secondary weakening of the vibration energy; the vibration energy after being fully weakened is transmitted to the foaming area of ​​the seat cushion, and the vibration energy is absorbed three times until the vibration disappears. Passengers will not be affected by the vibration of the buttocks when riding, and the structural characteristics of high comfort riding are achieved. The vibration absorption principle of the seat support frame assembly and the matching mounting structure is shown as follows. Fig.12 and Fig.13 As shown, S is the excitation source.

[0068] The matching structure of the seat support frame assembly, the seat cushion assembly 17 and the center floor assembly effectively realizes the design advantages of high strength, low weight, safety and comfort, while realizing the platform design of the seat support structure.

[0069] The effects of the installation structure of the seat support frame assembly provided by the present invention are as follows:

[0070] (1) The seat support frame assembly adopts an integrated frame reinforcement structure and a porous structure. The structural design is simple and light in weight. It also has platform application functions, which greatly reduces the design cost.

[0071] (2) The seat support frame assembly adopts a triangular reinforcement design strategy on the edges and rear structure, which effectively improves the strength of the frame connection structure and achieves a high-strength design advantage.

[0072] (3) The seat support frame assembly and the center floor assembly adopt a semi-enclosed cavity connection structure, a cavity overlap edge connection structure 27 and a three-cavity vertical stacking combination structure, and simultaneously combine a multi-cavity vibration absorption section to achieve a high-rigidity vibration absorption design for the installation point and the main structure, effectively blocking and absorbing the transmission of external excitation in the connection structure, and improving the overall structural NVH performance.

[0073] (4) The seat cushion assembly 17 cooperates with the seat support frame assembly to realize a recessed structure design of the seat cushion. The seat cushion assembly 17 effectively removes material vertically. The seat cushion assembly 17 simultaneously realizes a lightweight design effect and provides a large-capacity layout space for the lower part of the seat cushion.

[0074] (5) The present invention has been effectively applied to the second-row seats of large SUVs, and the design structure can be simultaneously expanded to seat installation applications in other areas, such as three-row seats, front passenger seats, etc.

[0075] Based on the same inventive concept, an embodiment of the present application also provides a vehicle, including the installation structure of the seat support frame assembly.

[0076] The vehicle provided by the embodiment of the present invention reduces the production cost of the entire vehicle and improves the brand value of the entire vehicle due to the good platformization, compatibility, anti-submarine capability and comfort of the seat support frame assembly and its installation structure.

[0077] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A seat support frame assembly, characterized in that: include: A front support beam (3) extending in the left-right direction of the vehicle body; A middle support beam (13) parallel to the front support beam (3); The front support frame body has a front end connected to the front support beam (3) and a rear end connected to the middle support beam (13), forming a frame structure; the middle part of the front support frame body is arched upward and can be embedded in the seat cushion assembly (17).

2. The seat support frame assembly according to claim 1, characterized in that: The front support frame body comprises two groups of first front support frames (1) and two groups of second front support frames (2); the two groups of the first front support frames (1) are symmetrically arranged at the left and right ends of the front support beam (3) and the middle support beam (13); and the two groups of the second front support frames (2) are symmetrically arranged between the two groups of the first front support frames (1).

3. The seat support frame assembly according to claim 2, characterized in that: The front support frame body also includes a side reinforcement structure arranged at the left and right ends of the front support beam (3); the side reinforcement structure includes a first side beam (8), a diagonal beam (6), a reinforced side beam (5) and a second side beam (7); the second side beam (7) is connected to the left end or the right end of the middle support beam (13); the diagonal beam (6) is connected between the front support beam (3) and the second side beam (7); the first side beam (8) is connected to the left side or the right side of the second side beam (7); the reinforced side beam (5) is connected between the diagonal beam (6) and the first side beam (8); after the components of the side reinforcement structure are connected, a triangular reinforcement structure is formed.

4. The seat support frame assembly according to claim 3, characterized in that: The front support frame body also includes two groups of rear support frames (12) and two groups of rear support beams (10); the front end of the rear support frame (12) is connected to the middle support beam (13) and is connected to the rear end of the second front support frame (2); the rear support beam (10) is connected between the rear support frame (12) and the second side beam (7).

5. The seat support frame assembly according to claim 4, characterized in that: The front support frame body also includes a rear support reinforcement beam (11) connected between the rear support frame (12) and the rear support beam (10); the rear support frame (12), the rear support beam (10) and the rear support reinforcement beam (11) are connected to form a triangular reinforcement structure.

6. The seat support frame assembly according to claim 4, characterized in that: The first front support frame (1), the second front support frame (2), the rear support frame (12), the front support beam (3) and the middle support beam (13) are all porous structures.

7. The seat support frame assembly according to claim 4, characterized in that: The front support frame body also includes a front panel (14) and a rear panel (15); the left and right ends of the front panel (14) are connected to two groups of the second front support frames (2), and the rear end of the front panel (14) is connected to the middle support beam (13); the rear panel (15) is laid along the left and right directions of the vehicle body, and the left and right ends are respectively connected to the second side beams (7), the middle part is connected to the rear support frame (12), and the rear end is connected to the rear support beam (10); the rear end of the front panel (14) is connected to the front end of the rear panel (15).

8. A mounting structure for a seat support frame assembly, characterized in that: It comprises a seat support frame assembly and a middle floor assembly as described in any one of claims 1 to 7; a plurality of mounting brackets (4) are dispersedly arranged in the left and right directions of the front support beam (3) of the seat support frame assembly, and a mounting plate (19) corresponding to the mounting bracket (4) is arranged on the middle floor assembly, and the mounting plate (19) is connected to the middle floor assembly to form a semi-enclosed cavity structure (20), and the lower end of the mounting bracket (4) is connected to the mounting plate (19).

9. The mounting structure of the seat support frame assembly according to claim 8, characterized in that: The rear end of the rear support frame (12) of the seat support frame assembly is connected to the middle floor assembly; the middle floor assembly includes a middle floor body (18) and a middle cross beam structure connected to the rear end of the middle floor body (18); the middle cross beam structure extends along the left-right direction of the vehicle body, and includes a middle cross beam (25) connected to the top of the middle floor body (18), a middle cross beam lower plate (24) connected to the bottom of the middle cross beam (25), and a middle cross beam upper plate (26) connected to the top of the middle cross beam (25); the middle cross beam upper plate (26), the middle cross beam (25), the middle floor body (18), and the middle cross beam lower plate (24) are connected to form a multi-cavity vertical stacking structure (23); the rear support frame (12) is connected to the multi-cavity vertical stacking structure (23).

10. A vehicle, characterized in that: It comprises a mounting structure of a seat support frame assembly as described in any one of claims 8 to 9.

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