Convertible body structure and convertible

Abstract

The application provides a convertible body structure and a convertible car. The convertible body structure comprises B columns arranged on left and right sides, sill beams connected to bottom ends of the B columns, a rear floor front beam connected between the sill beams, a rear floor connected to the rear floor front beam, a backrest ring connected to the rear floor, left and right sides of the backrest ring connected to corresponding rear wheel covers, a rear floor front beam reinforcing beam connected to a top of the rear floor front beam, two ends of the rear floor front beam reinforcing beam connected to the B columns, B column connecting plates connected to upper portions of the left and right sides of the backrest ring, the B column connecting plates arranged at front ends of the backrest ring and connected to upper portions of the corresponding B columns, and a ring-shaped reinforcing structure formed in a region close to the upper portions of the backrest ring. The convertible body structure can improve the safety of the convertible car in a collision and improve the overall quality of the convertible car.

Description

Technical Field

[0001] This invention relates to the field of convertible vehicle technology, and particularly to a convertible vehicle body structure. The invention also relates to a convertible vehicle having the aforementioned convertible vehicle body structure. Background Technology

[0002] As people's consumption levels rise and automotive technology continues to develop, convertibles are becoming increasingly accepted by consumers. Most convertibles typically have two rows of seats, one in the front and one in the back, and some models also have backrests on the rear seats for support.

[0003] In convertible car body structures, the absence of the upper body reduces the force transmission channel between the B-pillars. In a side collision, this can lead to greater intrusion at the B-pillar, causing injury to occupants and reducing overall vehicle crash safety. Furthermore, because the backrest rings in current convertible body structures only connect to the side panels and lack a force transmission channel, they often fail to participate in the transmission of impact forces in rear-end collisions, hindering the dispersion of rear-end collision forces and further reducing overall vehicle crash safety. Summary of the Invention

[0004] In view of this, the present invention aims to propose a convertible body structure that can improve the collision safety of convertibles and enhance the overall quality of convertibles.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] A convertible body structure includes B-pillars located on the left and right sides, sill beams connected to the bottom of each B-pillar, a front crossbeam of the rear floor connected between the sill beams on both sides corresponding to the B-pillars, and a rear floor connected to the front crossbeam of the rear floor. It also includes a backrest ring with its bottom connected to the rear floor, and the left and right sides of the backrest ring are respectively connected to the rear wheel arches on the corresponding sides.

[0007] The top of the front crossbeam of the rear floor is connected to a reinforcing beam of the front crossbeam of the rear floor, and both ends of the reinforcing beam of the front crossbeam of the rear floor are connected to the B-pillar.

[0008] The upper parts of the left and right sides of the backrest ring are respectively connected to B-pillar connecting plates. Both B-pillar connecting plates are arranged at the front end of the backrest ring, and the B-pillar connecting plates are respectively connected to the upper part of the B-pillar on the corresponding side, forming a ring-shaped reinforcing structure in the area near the upper part of the backrest ring.

[0009] Furthermore, the vertical distance h from the vertex of the connection between the front crossbeam of the rear floor and the B-pillar to the bottom of the B-pillar, and the height H of the B-pillar, satisfy h / H > 1 / 3; and / or, the cross-section of the front crossbeam of the rear floor is "n" shaped, and a cavity is formed within the front crossbeam of the rear floor.

[0010] Furthermore, an energy-absorbing component is connected to the side end face of the B-pillar facing the outer side panel. The energy-absorbing component is made of extruded aluminum and is attached to the end face of the B-pillar, extending from the bottom end of the B-pillar to the top end of the B-pillar.

[0011] Furthermore, a B-pillar reinforcement is provided inside the B-pillar, and the B-pillar reinforcement and the rear floor front crossbeam reinforcement are connected in the vehicle width direction.

[0012] Furthermore, an inner reinforcing plate is connected inside the B-pillar, the inner reinforcing plate is located above the B-pillar reinforcement, and the inner reinforcing plate is connected between the front end of the B-pillar connecting plate and the energy-absorbing component.

[0013] Furthermore, the B-pillar reinforcement is a box-shaped sheet metal part, and the B-pillar reinforcement is open on the side facing the front crossbeam reinforcement beam of the rear floor; or, the B-pillar reinforcement is made of extruded aluminum profile.

[0014] Furthermore, the backrest ring includes a front support plate and a rear support plate arranged opposite to each other, side connecting plates disposed on the left and right sides, a middle support plate located between the two side connecting plates, and an upper crossbeam connected between the top of the front support plate and the rear support plate.

[0015] The bottoms of the front support plate and the rear support plate are both connected to the rear floor. The front side of the middle support plate is connected to the front support plate, and the rear side of the middle support plate is connected to the rear support plate. The side connecting plates on both sides are respectively connected to the rear wheel arches on the corresponding sides, and the B-pillar connecting plates on both sides are respectively connected to the side connecting plates on the corresponding sides.

[0016] Furthermore, the bottom of the middle support plate is connected to the rear floor, the top of the middle support plate is connected to the upper crossbeam, and the middle support plates are arranged in multiple intervals along the left and right direction of the backrest ring, with each middle support plate located near the center of the left and right direction of the backrest ring.

[0017] Furthermore, a box-shaped reinforcing bracket is connected to one side of each of the aforementioned support plates, and the bottom of the reinforcing bracket is connected to the rear floor, while the rear part of the reinforcing bracket is connected to the rear support plate.

[0018] Further, the cross section of the B-pillar connecting plate is in a shape of "几", and along the length direction of the entire vehicle, the cross section of the B-pillar connecting plate gradually increases from front to rear; and / or,

[0019] The rear ends of the B-pillar connecting plates on both sides are each formed with a connecting end extending toward the front support plate, and the connecting ends are connected to the front support plate.

[0020] Further, the upper cross member is provided with a through hole for the roll cage to pass through, and / or, the side connecting plates on both sides are provided with mounting plates for installing a movable roof.

[0021] Further, the backrest ring is arranged to incline toward the rear of the vehicle, and the inclination angle of the backrest ring is between 0° and 27°.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] According to the convertible body structure of the present invention, by providing the reinforcing beam for the front cross member of the rear floor, force transmission channels can be formed at the lower parts of the B-pillars on both sides, which can adapt to the situation that the upper body of the convertible is missing and the side impact force transmission channels are reduced, improve the ability of the middle part of the vehicle body to cope with side impacts, and enhance the collision safety of the convertible.

[0024] At the same time, the upper parts of the left and right sides of the backrest ring are connected to the B-pillar connecting plates, and the front ends of the B-pillar connecting plates are connected to the upper parts of the B-pillars, whereby an annular reinforcing structure can be formed in the area close to the upper part of the backrest ring, which can use the B-pillar connecting plates to form force transmission channels between the B-pillars and the backrest ring, so that the collision force at the B-pillar positions is transmitted to the backrest ring, which is beneficial to the transmission and dispersion of side impact collision force, and can further improve the collision safety of the convertible and enhance the overall vehicle quality of the convertible.

[0025] In addition, setting the perpendicular distance from the vertex of the connection part between the reinforcing beam for the front cross member of the rear floor and the B-pillar to the bottom end of the B-pillar to be no less than 1 / 3 of the height of the B-pillar can ensure the Y-direction support effect on the B-pillar, improve the connection strength with the B-pillar, and thus improve the torsional performance and stability of the entire vehicle. By setting the cross section of the reinforcing beam for the front cross member of the rear floor to be n-shaped, the structural strength of the reinforcing beam for the front cross member of the rear floor itself can be improved. The arrangement of the energy absorbing member and the inner reinforcing plate at the B-pillar position can not only improve the structural strength of the B-pillar itself, but also facilitate the transmission of side impact force to the backrest ring.

[0026] Secondly, the backrest ring consists of front and rear support plates, a middle support plate, side connecting plates, and an upper crossbeam. Its structure is simple and possesses good structural strength. Multiple middle support plates, reinforced with box-shaped brackets, further enhance the backrest ring's support capacity. The B-pillar connecting plate has a Z-shaped cross-section, which improves its structural strength and facilitates the transmission of impact forces. Furthermore, the B-pillar connecting plate connects to the front support plate via its connecting end, increasing the reliability of the connection between the B-pillar connecting plate and the backrest ring.

[0027] Furthermore, the through holes on the upper crossbeam allow for the use of space between the front and rear support plates, facilitating the installation of a pop-up roll cage. The mounting plates on the side connecting plates for the retractable roof also aid in its integration into the vehicle body. The tilted design of the backrest rings enhances rear seat comfort and improves the overall rigidity of the backrest ring area.

[0028] Another object of the present invention is to provide a convertible automobile having the convertible body structure described above.

[0029] The convertible car described in this invention has the same beneficial effects as the aforementioned convertible car body structure compared to the prior art, and will not be repeated here. Attached Figure Description

[0030] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0031] Figure 1 This is a schematic diagram of the convertible car body structure described in an embodiment of the present invention;

[0032] Figure 2 for Figure 1 A schematic diagram of the middle section structure;

[0033] Figure 3 for Figure 2 A schematic diagram of the structure shown from another perspective;

[0034] Figure 4 This is a schematic diagram showing the connection height of the rear floor front crossbeam reinforcement beam according to an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the backrest ring structure according to an embodiment of the present invention;

[0036] Figure 6 for Figure 5 A schematic diagram of the structure shown from another perspective;

[0037] Figure 7This is a schematic diagram of the internal structure of the backrest ring according to an embodiment of the present invention;

[0038] Figure 8 This is a schematic diagram of the structure of the B-pillar connecting plate according to an embodiment of the present invention;

[0039] Figure 9 This is a schematic diagram of the B-pillar and its energy-absorbing components according to an embodiment of the present invention;

[0040] Figure 10 This is a schematic diagram of the structure of the B-pillar inner plate and B-pillar reinforcement according to an embodiment of the present invention;

[0041] Figure 11 This is a schematic diagram of the structure of the B-pillar reinforcing plate and the inner reinforcing plate according to an embodiment of the present invention;

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Rear floor; 2. Backrest ring; 3. B-pillar; 4. B-pillar connecting plate; 5. Rear floor front crossbeam; 6. Front floor; 7. Rear wheel arch; 8. Rear floor longitudinal beam; 9. Sill beam; 10. Rear floor front crossbeam reinforcement beam;

[0044] 201. Front support plate; 202. Rear support plate; 203. Side connecting plate; 204. Middle support plate; 205. Upper crossbeam; 206. Connector; 207. Lower connecting plate; 208. Mounting plate; 209. Reinforcing bracket; 2010. Support component;

[0045] 301. Inner B-pillar panel; 302. B-pillar reinforcement plate; 303. Energy-absorbing component; 304. B-pillar reinforcement component; 305. Inner reinforcement plate;

[0046] 401, Connecting end; 701, Rear wheel cover connecting plate. Detailed Implementation

[0047] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0048] In the description of this invention, it should be noted that the use of terms such as "upper," "lower," "inner," and "outer," indicating orientation or positional relationship, is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the use of terms such as "first" and "second" is also for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] Furthermore, in the description of this invention, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention in light of the specific circumstances.

[0050] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0051] This embodiment relates to a convertible body structure that adapts to situations where the upper body of a convertible lacks space and the side impact force transmission channel is reduced, thereby improving the ability of the middle of the body to withstand side impacts. Simultaneously, it can also form a ring-shaped reinforcing structure in the area near the upper part of the backrest ring 2, allowing the impact force at the B-pillar 3 to be transmitted to the backrest ring 2, thus facilitating the dispersion of side impact force and improving the safety of the convertible in a collision.

[0052] In terms of overall structure, combined Figures 1 to 3 As shown, the convertible body structure of this embodiment includes B-pillars 3 located on the left and right sides, sill beams 9 connected to the bottom of each B-pillar 3, a rear floor front crossbeam 5 corresponding to the B-pillars 3 and connected between the two sill beams 9, and a rear floor 1 connected to the rear floor front crossbeam 5.

[0053] Furthermore, the convertible body structure of this embodiment also includes a backrest ring 2 connected to the rear floor 1 at its bottom, and the left and right sides of the backrest ring 2 are respectively connected to the corresponding rear wheel arches 7. The top of the rear floor front crossbeam 5 is connected to a rear floor front crossbeam reinforcing beam 10, and both ends of the rear floor front crossbeam reinforcing beam 10 are connected to the B-pillars 3. The upper parts of the left and right sides of the backrest ring 2 are respectively connected to B-pillar connecting plates 4, both B-pillar connecting plates 4 are arranged at the front end of the backrest ring 2, and the B-pillar connecting plates 4 are respectively connected to the upper part of the corresponding B-pillar 3, forming a ring-shaped reinforcing structure in the area near the upper part of the backrest ring 2.

[0054] At this point, the rear floor front crossbeam reinforcement beam 10 in this embodiment can form a force transmission channel at the lower part of the B-pillars 3 on both sides, which can adapt to the situation where the upper body of the convertible is lacking and the side impact force transmission channel is reduced, thereby improving the ability of the middle part of the body to cope with side impacts and enhancing the safety of the convertible in a collision.

[0055] Meanwhile, B-pillar connecting plates 4 are connected to the upper part of the left and right sides of the backrest ring 2, and the front end of the B-pillar connecting plate 4 is connected to the upper part of the B-pillar 3. This forms a ring-shaped reinforcing structure in the area near the upper part of the backrest ring 2. The B-pillar connecting plate 4 can form a force transmission channel between the B-pillar 3 and the backrest ring 2, so that the collision force at the B-pillar 3 position is transmitted to the backrest ring 2, which is conducive to the transmission and dispersion of the side collision force, and can further improve the safety of convertible collisions.

[0056] Based on the above overview, for specific details, please refer to... Figure 1 As shown, in the convertible of this embodiment, the front end of the rear floor 1 is connected to the front crossbeam 5 of the rear floor, and the side of the front crossbeam 5 of the rear floor near the front of the car is connected to the front floor 6. At the same time, similar to the structure in existing convertibles, the left and right sides of the front floor 6 are connected to the corresponding side door sill beams 9, and the rear end of each side door sill beam 9 is connected to the bottom end of the B-pillar 3 and the end of the front crossbeam 5 of the rear floor.

[0057] In addition, the rear wheel arches 7 on both sides are connected to the rear floor longitudinal beams 8 on the corresponding sides, and the rear floor 1 is connected between the rear floor longitudinal beams 8 on both sides. The rear floor 1, rear wheel arches 7 and rear floor longitudinal beams 8 can all adopt the relevant structures in existing convertible cars, and their structures will not be described in detail here.

[0058] In this embodiment, the two ends of the front crossbeam 5 of the rear floor can be connected to the sill beam 9 by welding. The front crossbeam 5 of the rear floor can adopt a beam structure with an internal cavity to give it better structural strength and provide a reliable connection between the bottom ends of the B-pillars 3 on both sides, as well as to effectively transmit force.

[0059] In a preferred embodiment, the cross-section of the rear floor front crossbeam reinforcement beam 10 can be designed to be "n"-shaped, forming a cavity within the beam, thus improving its structural strength. It should also be noted that, in practice, the bottom of the rear floor front crossbeam reinforcement beam 10 can be welded to the rear floor front crossbeam 5. However, to ensure a larger width of the rear floor front crossbeam reinforcement beam 10 along the vehicle's length and further enhance its structural strength, even when the width of the rear floor front crossbeam 5 is limited, the front side of the "n"-shaped rear floor front crossbeam reinforcement beam 10 can be connected to the top of the rear floor front crossbeam 5, while the rear side is connected to the rear floor 1.

[0060] In addition, combined Figure 4As shown in the preferred embodiment, the vertical distance h from the apex of the connection between the rear floor front crossbeam reinforcement beam 10 and the B-pillar 3 to the bottom of the B-pillar 3, and the height H of the B-pillar 3, also satisfy h / H > 1 / 3. In this case, by ensuring that the vertical distance from the apex of the connection between the rear floor front crossbeam reinforcement beam 10 and the B-pillar 3 to the bottom of the B-pillar 3 is not less than 1 / 3 of the height of the B-pillar 3, the Y-direction support effect for the B-pillar 3 can be guaranteed, and the connection strength between the rear floor front crossbeam reinforcement beam 10 and the B-pillar 3 can be improved, thereby enhancing the torsional performance and stability of the entire vehicle.

[0061] Combination Figures 5 to 7 As shown, as an exemplary structural form, the backrest ring 2 of this embodiment specifically includes a front support plate 201 and a rear support plate 202 arranged opposite to each other, side connecting plates 203 respectively disposed on the left and right sides, a middle support plate 204 located between the two side connecting plates 203, and an upper crossbeam 205 connected between the tops of the front support plate 201 and the rear support plate 202.

[0062] The bottoms of the front support plate 201 and the rear support plate 202 are both connected to the rear floor 1. The front side of the middle support plate 204 is connected to the front support plate 201, and the rear side is connected to the rear support plate 202. The side connecting plates 203 on both sides are connected to the rear wheel arches on the corresponding sides. At the same time, the B-pillar connecting plates 4 on both sides are also connected to the side connecting plates 203 on the corresponding sides.

[0063] In this embodiment, the middle support plate 204 forms a cavity within the backrest ring 2. This cavity is located between the front support plate 201 and the rear support plate 202. Specifically, a pop-up roll cage can be installed within this cavity to fully utilize the internal space of the backrest ring 2. When installing the pop-up roll cage, it is important to note that a through hole 2051 for the roll cage to pass through should be provided on the upper crossbeam 205. Furthermore, the middle support plate 204 between the front support plate 201 and the rear support plate 202 in this embodiment also provides an installation point for the pop-up roll cage, thereby helping to ensure the stability of the roll cage and providing a good foundation for it to perform its protective function.

[0064] In a preferred embodiment, the bottom of the middle support plate 204 is connected to the rear floor 1, and the top of the middle support plate 204 is also connected to the upper crossbeam 205, thus enabling the middle support plate 204 to support the upper crossbeam 205. Furthermore, also as a preferred embodiment, multiple middle support plates 204 can be arranged at intervals along the left-right direction of the backrest ring 2. Each middle support plate 204 is also positioned close to the center of the left-right direction of the backrest ring 2, allowing two of the aforementioned roll cages to be arranged within the backrest ring 2.

[0065] With the central support plate 204 connected to the front and rear support plates, as well as the rear floor 1 and the upper crossbeam 205, to improve the support capacity of the backrest ring, this embodiment preferably still refers to... Figure 7 As shown, a box-shaped reinforcing bracket 209 is connected to one side of each of the intermediate support plates 204. The bottom of the reinforcing bracket 209 is connected to the rear floor 1, and the rear part is connected to the rear support plate 202. The box-shaped structure of the reinforcing bracket 209 not only improves the structural strength of the reinforcing bracket 209 itself, but also facilitates the connection between the reinforcing bracket 209 and the rear floor 1 and the rear support plate 202. In specific implementation, the reinforcing bracket 209 and the above-mentioned components can be connected by welding.

[0066] In this embodiment, connectors 206 are respectively connected to the bottom of the left and right sides of the backrest ring 2. The connectors 206 on both sides are also specifically connected to the rear end face of the rear support plate 202. In addition to the connectors 206, as a preferred embodiment, support members 2010 are also provided between the rear support plate 202 and the front support plate 201, respectively corresponding to the connectors 206. At this time, the support members 2010 and the connectors 206 on each side are respectively located on the front and rear sides of the rear support plate 202, and are arranged correspondingly in the longitudinal direction of the vehicle. The support members 2010 are specifically connected to the front end face of the rear support plate 202, and are also connected to the rear floor longitudinal beam 8.

[0067] In practical implementation, both the aforementioned connectors 206 and support members 2010 can adopt box-shaped sheet metal structures. Besides connecting to the rear wheel arch 7 and the rear floor longitudinal beam 8, portions of each connector 206 on the rear side are also connected to the rear floor 1. Similarly, each support member 2010 on the front side is connected to the rear floor longitudinal beam 8, and portions of the support members 2010 on both sides are also partially connected to the rear floor 1. This multi-directional connection of the connectors 206 and support members 2010 improves the overall stability of the backrest ring 2.

[0068] It is understandable that by connecting the bottom of the left and right sides of the backrest ring 2 with connectors 206, and connecting the connectors 206 to the rear wheel arch 7 and the rear floor longitudinal beam 8, this embodiment can also form a force transmission channel between the backrest ring 2, the rear floor longitudinal beam 8, and the rear wheel arch 7, based on the connection between the backrest ring 2 and the rear wheel arch 7. Simultaneously, based on this, combined with the connection between the front end of the rear floor longitudinal beam 8 and the sill beam, as mentioned above, this embodiment can also form a herringbone-shaped force transmission channel between the connectors 206, the rear floor longitudinal beam 8, and the backrest ring 2. In the event of a rear-end collision with the convertible, the collision force transmitted along the rear floor longitudinal beam 8 and the rear wheel arch 7 can be transmitted to the backrest ring 2 and the sill beam through this force transmission channel, effectively dispersing the collision force and improving the safety of the convertible in a rear-end collision.

[0069] Depend on Figure 2 and combined Figures 5 to 7 As shown, to facilitate the connection between the backrest ring 2 and the rear wheel covers 7 on both sides, this embodiment has rear wheel cover connecting plates 701 connected to the rear wheel covers 7 on both sides respectively. The connecting plates 203 on each side are connected to the corresponding rear wheel cover 7 through the rear wheel cover connecting plates 701. The aforementioned rear wheel cover connecting plates 701 can be made of stamped sheet metal. It should also be noted that, in addition to setting the rear wheel cover connecting plates 701, it is also possible to have the side connecting plates 203 on both sides directly connected to the corresponding rear wheel cover 7.

[0070] In addition to the rear wheel arch connecting plate 701, to improve the overall structural stability of the backrest ring 2, in this embodiment, lower connecting plates 207 are also connected to the bottom of the left and right sides of the front support plate 201, and the lower connecting plates 207 on both sides are connected to the corresponding rear wheel arch connecting plates 701. In this way, the front support plate 201 and the rear wheel arches 7 on both sides can be connected through the lower connecting plates 207 and the rear wheel arch connecting plates 701, thereby achieving the effect of improving the structural stability of the backrest ring 2.

[0071] In this embodiment, to facilitate the assembly of the movable roof into the overall vehicle body, mounting plates 208 for installing the movable roof are also provided on the side connecting plates 203 on both sides. The mounting plates 208 can be designed according to the hinge type of the movable roof in the convertible. Additionally, in this embodiment, the backrest ring 2 is also tilted towards the rear of the vehicle, and in specific implementation, the tilt angle of the backrest ring 2 can be set between 0-27°. This tilting of the backrest ring 2 not only helps improve the comfort of the rear seats but also enhances the overall rigidity of the backrest ring area.

[0072] Continue as Figure 8 As shown in the illustration, in a preferred embodiment, the cross-section of the B-pillar connecting plate 4 is U-shaped. This U-shaped cross-section, with its high structural strength, enhances the structural strength of the B-pillar connecting plate 4 and improves its ability to transmit impact forces. Furthermore, in practical implementation, as a feasible assembly method, this embodiment can connect the B-pillar connecting plate 4 to the backrest ring 2 and the B-pillar 3 using a screw connection structure. This screw connection structure can be a bolt pair or an FDS screw.

[0073] In addition, still combined Figure 2 and Figure 8As shown, to improve the connection reliability between the B-pillar connecting plate 4 and the backrest ring 2, this embodiment forms a connecting end 401 extending forward to the support plate 201 at the rear end of both B-pillar connecting plates 4, and this connecting end 401 is also connected to the front support plate 201 by a screw connection structure. This facilitates the connection between the B-pillar connecting plate 4 and the side connecting plate 203, greatly enhancing the force transmission capability between the B-pillar connecting plate 4 and the backrest ring 2.

[0074] And continue as Figure 9 As shown, in a preferred embodiment, an energy-absorbing component 303 is connected to the end face of the B-pillar 3 facing the side outer panel. This energy-absorbing component 303 is made of extruded aluminum and abuts against the end face of the B-pillar 3, extending from the bottom to the top of the B-pillar 3. In this configuration, the energy-absorbing component 303 not only improves the structural strength and support capacity of the B-pillar 3 itself, but also, in the event of a side impact, effectively absorbs energy through crumpling while transferring the impact force to the B-pillar connecting plate 4.

[0075] As a preferred implementation, structurally, it combines Figure 10 and Figure 11 As shown, the B-pillar 3 in this embodiment specifically includes an inner B-pillar panel 301 and a B-pillar reinforcing plate 302 that is fastened to the outside of the inner B-pillar panel 301. Preferably, a B-pillar reinforcing member 304 is connected between the inner B-pillar panel 301 and the B-pillar reinforcing plate 302. Simultaneously, an inner reinforcing plate 305 located above the B-pillar reinforcing member 304 is also connected to the inner side of the B-pillar reinforcing plate 302.

[0076] The B-pillar reinforcement 304 adopts a box-shaped sheet metal structure, or it can be made of extruded aluminum profile. The B-pillar reinforcement 304 improves the structural strength of the B-pillar 3 and facilitates the inward transmission of side impact force. The inner reinforcement plate 305 can be a sheet metal part conforming to the B-pillar reinforcement plate 302. It is important to note that this inner reinforcement plate 305 also connects between the front end of the B-pillar connecting plate 4 and the energy-absorbing component 303. That is, in the vehicle width direction, the projections of the front end of the B-pillar connecting plate 4, the inner reinforcement plate 305, and the energy-absorbing component 303 overlap. This further facilitates the transmission of impact force from the upper part of the B-pillar 3 to the B-pillar connecting plate 4, thereby improving the force transmission effect between the B-pillar 3 and the backrest ring 2.

[0077] The convertible body structure of this embodiment, through the setting of the rear floor front crossbeam reinforcement beam 10, can form a force transmission channel in the lower part of the B-pillars 3 on both sides, which can adapt to the situation where the upper body of the convertible is lacking and the side impact force transmission channel is reduced, thereby improving the ability of the middle part of the body to cope with side impacts.

[0078] Furthermore, by connecting the B-pillar connecting plates 4 to the upper parts of the left and right sides of the backrest ring 2, and making the front end of the B-pillar connecting plates 4 connected to the upper part of the B-pillar 3, a ring-shaped reinforcing structure can be formed in the area near the upper part of the backrest ring 2. The B-pillar connecting plates 4 can form a force transmission channel between the B-pillar 2 and the backrest ring 2, so that the collision force at the B-pillar 3 position can be transmitted to the backrest ring 2. This can help to disperse the side collision force, improve the collision safety of the convertible, and enhance the overall quality of the convertible.

[0079] Of course, in this embodiment, by forming a force transmission channel at the lower part of the B-pillar 3 and an annular reinforcing structure near the upper part of the backrest ring 2, multiple force transmission channels can be formed in the middle of the vehicle body. The side impact force received during the side collision can be transmitted from the floor front crossbeam reinforcing beam 10 to the B-pillar 3, and guided to the backrest ring through the reinforcing structure set in the B-pillar 3, thereby improving the overall ability of the middle of the vehicle body to cope with side collisions.

[0080] Finally, this embodiment also relates to a convertible vehicle having the convertible body structure of Embodiment 1.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A convertible body structure, characterized in that: It includes B-pillars (3) located on the left and right sides, sill beams (9) connected to the bottom of each B-pillar (3), and a front crossbeam (5) of the rear floor connected between the sill beams (9) on both sides, corresponding to the B-pillars (3), and a rear floor (1) connected to the front crossbeam (5). It also includes a backrest ring (2) with its bottom connected to the rear floor (1), and the left and right sides of the backrest ring (2) are respectively connected to the rear wheel covers (7) on the corresponding sides. The top of the front crossbeam (5) of the rear floor is connected to the front crossbeam reinforcement beam (10), and both ends of the front crossbeam reinforcement beam (10) of the rear floor are connected to the B-pillar (3). The upper parts of the left and right sides of the backrest ring (2) are respectively connected to B-pillar connecting plates (4). The B-pillar connecting plates (4) on both sides are arranged at the front end of the backrest ring (2), and the B-pillar connecting plates (4) are respectively connected to the upper part of the B-pillar (3) on the corresponding side, forming a ring-shaped reinforcing structure in the area near the upper part of the backrest ring (2). An energy-absorbing component (303) is connected to the side end face of the B-pillar (3) facing the outer side panel. The energy-absorbing component (303) is made of extruded aluminum and is attached to the end face of the B-pillar (3). The energy-absorbing component (303) extends from the bottom end of the B-pillar (3) to the top end of the B-pillar (3). The B-pillar (3) is provided with a B-pillar reinforcement (304), and the B-pillar reinforcement (304) and the rear floor front crossbeam reinforcement beam (10) are connected in the vehicle width direction; the B-pillar (3) is connected with an inner reinforcement plate (305), the inner reinforcement plate (305) is located above the B-pillar reinforcement (304), and the inner reinforcement plate (305) is connected between the front end of the B-pillar connecting plate (4) and the energy-absorbing member (303).

2. The convertible body structure according to claim 1, characterized in that: The perpendicular distance h from the vertex of the connection between the rear floor front crossbeam reinforcement beam (10) and the B-column (3) to the bottom of the B-column (3), and the height H of the B-column (3), satisfy h / H > 1 / 3; and / or, The cross-section of the rear floor front crossbeam reinforcement beam (10) is "n" shaped, and a cavity is formed inside the rear floor front crossbeam reinforcement beam (10).

3. The convertible body structure according to claim 1, characterized in that: The B-pillar reinforcement (304) is a box-shaped sheet metal part, and the B-pillar reinforcement (304) is open on the side facing the front crossbeam reinforcement beam (10) of the rear floor; or, the B-pillar reinforcement (304) is made of extruded aluminum profile.

4. The convertible body structure according to any one of claims 1 to 3, characterized in that: The backrest ring (2) comprises a front support plate (201) and a rear support plate (202) arranged opposite to each other in the front-rear direction, side connection plates (203) respectively arranged on the left and right sides, a middle support plate (204) located between the side connection plates (203) on both sides, and an upper cross beam (205) connected between the tops of the front support plate (201) and the rear support plate (202); The bottoms of the front support plate (201) and the rear support plate (202) are both connected to the rear floor (1), the front side of the middle support plate (204) is connected to the front support plate (201), the rear side of the middle support plate (204) is connected to the rear support plate (202), the side connection plates (203) on both sides are respectively connected to the corresponding rear wheel housings (7), and the B-pillar connection plates (4) on both sides are respectively connected to the corresponding side connection plates (203).

5. The convertible vehicle body structure according to claim 4, characterized in that: The bottom of the middle support plate (204) is connected to the rear floor (1), the top of the middle support plate (204) is connected to the upper cross beam (205), and a plurality of the middle support plates (204) are arranged at intervals along the left-right direction of the backrest ring (2), and each of the middle support plates (204) is disposed close to the middle part of the backrest ring (2) in the left-right direction.

6. The convertible vehicle body structure according to claim 5, characterized in that: One side of each of the middle support plates (204) is connected with a box-shaped reinforcing bracket (209), the bottom of the reinforcing bracket (209) is connected to the rear floor (1), and the rear part of the reinforcing bracket (209) is connected to the rear support plate (202).

7. The convertible vehicle body structure according to claim 4, characterized in that: The B-pillar connection plate (4) has a "几"-shaped cross section, and along the length direction of the entire vehicle, the cross section of the B-pillar connection plate (4) gradually increases from front to rear; and / or, The rear ends of the B-pillar connection plates (4) on both sides are each formed with a connection end (401) extending toward the front support plate (201), and the connection end (401) is connected to the front support plate (201).

8. The convertible vehicle body structure according to claim 4, characterized in that: The upper cross beam (205) is provided with a through hole (2051) for the roll cage to pass through, and / or, the side connection plates (203) on both sides are provided with mounting plates (208) for mounting the movable roof.

9. The convertible vehicle body structure according to claim 4, characterized in that: The backrest ring (2) is arranged to incline toward the vehicle rear, and the inclination angle of the backrest ring (2) is between 0° and 27°.

10. A convertible automobile, characterized in that: The convertible automobile is provided with the convertible vehicle body structure according to any one of claims 1 to 9.

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