Backrest ring assembly of convertible and convertible

Abstract

The application provides a backrest ring assembly of a convertible and the convertible. The backrest ring assembly of the convertible comprises a backrest ring body connected to a rear floor at the bottom. The left and right sides of the backrest ring body are connected to corresponding rear wheel covers respectively. The upper parts of the left and right sides of the backrest ring body are connected to B column connecting plates respectively. The bottoms of the left and right sides of the backrest ring body are connected to connecting pieces respectively. The B column connecting plates on the two sides are connected to the upper parts of corresponding B columns respectively. An annular reinforcing structure is formed in the area close to the upper part of the backrest ring body. Each connecting piece is connected to the rear end face of the backrest ring body. Each connecting piece is connected to the corresponding rear wheel cover and rear floor longitudinal beam. A herringbone-shaped force transmission channel is formed in the area close to the lower part of the backrest ring body. The backrest ring assembly of the convertible is beneficial to the transmission and dispersion of the collision force at the backrest ring position, and can improve the collision safety of the convertible.

Description

Technical Field

[0001] This invention relates to the field of convertible technology, and particularly to a backrest ring assembly for a convertible. The invention also relates to a convertible automobile having the aforementioned backrest ring assembly. 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 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 compromising side-impact safety. Furthermore, because the backrest rings in existing convertible body structures only connect to the side panels, lacking a force transmission channel, they often fail to participate in the transmission of impact forces in rear-end collisions, hindering the dispersion of impact forces and further impacting the convertible's rear-end collision safety. Summary of the Invention

[0004] In view of this, the present invention aims to provide a backrest ring assembly for a convertible, which can improve the force transmission performance at the backrest ring position and enhance the collision safety of the convertible.

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

[0006] A convertible backrest ring assembly includes a backrest ring body with its bottom connected to the rear floor. The left and right sides of the backrest ring body are respectively connected to the rear wheel arches on the corresponding sides. The upper parts of the left and right sides of the backrest ring body are respectively connected to B-pillar connecting plates, and the bottom of the left and right sides of the backrest ring body are respectively connected to connectors.

[0007] The B-pillar connecting plates on both sides are arranged at the front end of the backrest ring body, and each B-pillar connecting plate is connected to the upper part of the corresponding side B-pillar, forming a ring-shaped reinforcing structure in the area near the upper part of the backrest ring body.

[0008] Each of the aforementioned connectors is connected to the rear end face of the backrest ring body, and each of the aforementioned connectors is connected to the rear wheel cover and the rear floor longitudinal beam on the corresponding side, forming a herringbone-shaped force transmission channel in the area near the lower part of the backrest ring body.

[0009] Furthermore, the backrest ring body 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.

[0010] 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. The connecting parts on both sides are connected to the rear end face of the rear support plate.

[0011] Furthermore, a support member is provided between the rear support plate and the front support plate, which is respectively arranged corresponding to each of the connecting members. The support member is connected to the front end surface of the rear support plate and is connected to the rear floor longitudinal beam.

[0012] Furthermore, both the connector and the support are box-shaped, and a portion of the connector and a portion of the support are connected to the rear floor.

[0013] 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 body, with each middle support plate located near the center of the left and right direction of the backrest ring body.

[0014] 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.

[0015] Furthermore, rear wheel cover connecting plates are respectively connected to the rear wheel cover on both sides, and each side connecting plate is connected to the corresponding side rear wheel cover through the rear wheel cover connecting plate.

[0016] Furthermore, the rear ends of the B-pillar connecting plates on both sides are formed with connecting ends extending towards the front support plate, and the connecting ends are connected to the front support plate; and / or, the cross-section of the B-pillar connecting plate is "U" shaped, and along the length of the vehicle, the cross-section of the B-pillar connecting plate gradually increases from front to back.

[0017] Furthermore, the upper crossbeam is provided with through holes for the roll cage to pass through, and / or the side connecting plates on both sides are provided with mounting plates for installing the movable canopy.

[0018] 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.

[0019] Furthermore, the B-pillar includes an inner B-pillar panel and a B-pillar reinforcing plate that is fastened to the outside of the inner B-pillar panel. An inner reinforcing plate is connected to the inner side of the B-pillar reinforcing plate, and the inner reinforcing plate is connected between the front end of the B-pillar connecting plate and the energy-absorbing component.

[0020] Furthermore, the backrest ring body is inclined towards the rear of the vehicle, and the inclination angle of the backrest ring body is between 0 and 27°.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] The convertible backrest ring assembly of the present invention connects B-pillar connecting plates to the upper part of the left and right sides of the backrest ring body, and the front end of the B-pillar connecting plate is connected to the upper part of the B-pillar. This forms a ring-shaped reinforcing structure in the area near the upper part of the backrest ring body. The B-pillar connecting plate can form a force transmission channel between the B-pillar and the backrest ring, so that the collision force at the B-pillar position is transmitted to the backrest ring, which is beneficial to the transmission and dispersion of side collision force, thereby improving the side collision safety of convertible cars.

[0023] Meanwhile, by connecting the bottom of the left and right sides of the backrest ring body with connectors that are connected to the rear wheel arches and the rear floor longitudinal beams, a herringbone-shaped force transmission channel is formed in the area near the lower part of the backrest ring body, based on the connection between the backrest ring body and the rear wheel arches and the connection between the backrest ring body, the rear floor longitudinal beams and the connectors. In the event of a rear-end collision, the impact force transmitted along the rear floor longitudinal beams and the rear wheel arches can be transmitted to the backrest ring and the sill beam through this force transmission channel, so that the impact force is effectively transmitted and dispersed, thereby improving the safety of the convertible in a rear-end collision.

[0024] Furthermore, the backrest ring body in this invention is composed of front and rear support plates, a middle support plate, side connecting plates, and an upper crossbeam, resulting in a simple structure with good structural strength. Multiple middle support plates, with box-shaped reinforcing brackets, further enhance the backrest ring's support capacity. The support components improve the stability of the backrest ring body. The B-pillar connecting plate has a Z-shaped cross-section, which increases its structural strength and improves its impact force transmission capability. The side connecting plates are connected to the rear wheel arch via the rear wheel arch connecting plate, facilitating the molding and fabrication of the side connecting plates and the connection between them.

[0025] Furthermore, the B-pillar connecting plate in this invention is connected to the front support plate via a connecting end, which increases the reliability of the connection between the B-pillar connecting plate and the backrest ring. The through-hole on the upper crossbeam can be used to accommodate the space between the front and rear support plates, facilitating the installation of a pop-up roll cage. The mounting plate on the side connecting plate for installing the movable roof also facilitates the assembly of the movable roof into the overall vehicle body. The inclined design of the backrest ring body helps improve the comfort of the rear seats and also enhances the overall rigidity of the backrest ring area. The energy-absorbing components and inner reinforcing plate at the B-pillar not only improve the structural strength of the B-pillar itself but also facilitate the transfer of side impact forces to the backrest ring.

[0026] Another object of the present invention is to provide a convertible automobile having a convertible backrest ring assembly as described above in the body of the convertible.

[0027] The convertible car described in this invention has the same beneficial effects as the aforementioned convertible car backrest ring assembly compared to the prior art, and will not be repeated here. Attached Figure Description

[0028] 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:

[0029] Figure 1 This is a schematic diagram showing the arrangement of the backrest ring structure in a convertible body according to an embodiment of the present invention;

[0030] Figure 2 for Figure 1 A schematic diagram of the middle section structure;

[0031] Figure 3 for Figure 2 A schematic diagram of the structure shown from another perspective;

[0032] Figure 4 This is a schematic diagram of the structure of the backrest ring body according to an embodiment of the present invention;

[0033] Figure 5 for Figure 4 A schematic diagram of the structure shown from another perspective;

[0034] Figure 6 This is a schematic diagram of the internal structure of the backrest ring body according to an embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the structure of the B-pillar connecting plate according to an embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram of the B-pillar and its energy-absorbing components according to an embodiment of the present invention;

[0037] Figure 9 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;

[0038] Figure 10 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;

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Rear floor; 2. Backrest ring body; 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;

[0041] 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;

[0042] 301. Inner B-pillar panel; 302. B-pillar reinforcement plate; 303. Energy-absorbing component; 304. B-pillar reinforcement component; 305. Inner reinforcement plate;

[0043] 401, Connecting end; 701, Rear wheel cover connecting plate. Detailed Implementation

[0044] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0045] 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.

[0046] 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.

[0047] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0048] Example 1

[0049] This embodiment relates to a backrest ring assembly for a convertible, which can establish force transmission channels between the backrest ring and the B-pillar 3, and between the backrest ring and the rear wheel arch 7 and the rear floor longitudinal beam 8. This helps to transmit the collision force at the B-pillar 3, the rear floor longitudinal beam 8 and the rear wheel arch 7 to the backrest ring, thereby improving the collision safety of the convertible.

[0050] In terms of overall structure, combined Figures 1 to 3 As shown, the convertible backrest assembly of this embodiment includes a backrest body 2 with its bottom connected to the rear floor 1. The left and right sides of the backrest body 2 are respectively connected to the rear wheel arches 7 on the corresponding sides. The upper parts of the left and right sides of the backrest body 2 are respectively connected to B-pillar connecting plates 4, and the bottom of the left and right sides of the backrest body 2 are respectively connected to connectors 206.

[0051] Furthermore, the B-pillar connecting plates 4 on both sides are arranged at the front end of the backrest ring body 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 body 2. Each connector 206 is connected to the rear end face of the backrest ring body 2, and each connector 206 is connected to the corresponding rear wheel arch 7 and the rear floor longitudinal beam 8, forming a herringbone-shaped force transmission channel in the area near the lower part of the backrest ring body 2.

[0052] At this time, on the one hand, by connecting the B-pillar connecting plate 4 to the upper part of the left and right sides of the backrest ring body 2, and making the front end of the B-pillar connecting plate 4 connected to the upper part of the B-pillar 3, a ring-shaped reinforcing structure is formed in the area near the upper part of the backrest ring body 2. The B-pillar connecting plate 4 can form a force transmission channel between the B-pillar 3 and the backrest ring body 2, so that the collision force at the B-pillar 3 position can be transmitted to the backrest ring body 2, which is beneficial to the transmission and dispersion of the side collision force borne by the B-pillar 3 position.

[0053] On the other hand, by connecting the bottom of the left and right sides of the backrest ring body 2 with connectors 206, and connecting the connectors 206 to the rear wheel arches 7 and the rear floor longitudinal beams 8, a herringbone-shaped force transmission channel is formed by the connection between the backrest ring body 2, the rear floor longitudinal beams 8, and the connectors 206, based on the connection between the backrest ring body 2 and the rear wheel arches 7. In the event of a rear-end collision with the convertible, part of the impact force is transmitted along the rear floor longitudinal beams 8 to the vehicle's sill beams, while another part of the impact force is transmitted to the backrest ring body 2 through the force transmission channel formed by the rear floor longitudinal beams 8, the rear wheel arches 7, and the connectors 206, thereby effectively dispersing and transmitting the impact force.

[0054] 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, sill beams are also provided on the left and right sides of the front floor 6, and the rear end of each sill beam is connected to the bottom end of the B-pillar 3 and the end of the front crossbeam 5 of the rear floor.

[0055] 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.

[0056] Combination Figures 4 to 6 As shown, as an exemplary structural form, the backrest ring body 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.

[0057] 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.

[0058] In this embodiment, the middle support plate 204 forms a cavity within the backrest ring body 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 body 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.

[0059] 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 body 2. Each middle support plate 204 is also positioned close to the center of the left-right direction of the backrest ring body 2, allowing for the arrangement of two of the aforementioned roll cages within the backrest ring body 2.

[0060] 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, preferably, this embodiment still refers to... Figure 6 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.

[0061] In this embodiment, the connectors 206 on both sides are specifically connected to the rear end face of the rear support plate 202. Furthermore, as a preferred embodiment, in addition to the connectors 206, support members 2010 are also provided between the rear support plate 202 and the front support plate 201, each corresponding to one of the connectors 206. In this case, the support members 2010 and 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.

[0062] 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 body 2.

[0063] Depend on Figure 2 and combined Figures 4 to 6As shown, to facilitate the connection between the backrest ring body 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.

[0064] In addition to the rear wheel arch connecting plate 701, to improve the overall structural stability of the backrest ring body 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 body 2.

[0065] 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 body 2 is also tilted towards the rear of the vehicle, and in specific implementation, the tilt angle of the backrest ring body 2 can be set between 0-27°. This tilting of the backrest ring body 2 not only helps improve the comfort of the rear seats but also enhances the overall rigidity of the backrest ring position.

[0066] Continue as Figure 7 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 structure offers high structural strength, enhancing the structural strength of the B-pillar connecting plate 4 and improving 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 body 2 and the B-pillar 3 via a screw connection. This screw connection can be a bolt pair or an FDS screw.

[0067] In addition, still combined Figure 2 and Figure 7 As shown, to improve the connection reliability between the B-pillar connecting plate 4 and the backrest ring body 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 body 2.

[0068] And continue as Figure 8 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.

[0069] As a preferred implementation, structurally, it combines Figure 9 and Figure 10 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.

[0070] 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 forces. 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 forces 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 body 2.

[0071] In this embodiment, the convertible's backrest ring assembly connects B-pillar connecting plates 4 to the upper parts of the left and right sides of the backrest ring body 2, and the front end of the B-pillar connecting plates 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 body 2. The B-pillar connecting plates 4 can form a force transmission channel between the B-pillar 2 and the backrest ring body 2, so that the collision force at the B-pillar 3 position is transmitted to the backrest ring body 2. This facilitates the transmission and dispersion of side collision force and improves the collision safety of the convertible.

[0072] Of course, by connecting the bottom of the left and right sides of the backrest ring body 2 with connectors 206, and connecting the connectors 206 with 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 body 2, the rear floor longitudinal beam 8, and the rear wheel arch 7, based on the connection between the backrest ring body 2 and the rear wheel arch 7. At the same time, 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 body 2.

[0073] Therefore, when a convertible is rear-ended, the impact force transmitted along the rear floor longitudinal beam 8 and the rear wheel arch 7 can be transmitted to the backrest ring body 2 and the sill beam through this force transmission channel, which can effectively transmit and disperse the impact force and improve the safety of the convertible in a rear-end collision.

[0074] In summary, the convertible backrest ring assembly of this embodiment can effectively transmit and disperse the impact forces of side and rear collisions, which is beneficial to improving the safety of the convertible in a rear collision and has good practicality.

[0075] Example 2

[0076] This embodiment relates to a convertible car, the body of which has the backrest ring assembly of the convertible car in Embodiment 1.

[0077] The convertible car in this embodiment, by incorporating the backrest ring assembly of the convertible car in Embodiment 1, can effectively transmit and disperse the impact forces of side and rear collisions, which is beneficial to improving the safety of the convertible car in rear collisions and has good practicality.

[0078] 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 backrest ring assembly, characterized in that: Includes a backrest ring body (2) with its bottom connected to the rear floor (1), the left and right sides of the backrest ring body (2) are respectively connected to the rear wheel cover (7) on the corresponding side, and the upper part of the left and right sides of the backrest ring body (2) is respectively connected to a B-pillar connecting plate (4), and the bottom of the left and right sides of the backrest ring body (2) is respectively connected to a connector (206). The B-pillar connecting plates (4) on both sides are arranged at the front end of the backrest ring body (2), and each B-pillar connecting plate (4) is 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 body (2). Each of the connectors (206) is connected to the rear end face of the backrest ring body (2). The connector (206) is box-shaped. A portion of the connector (206) is connected to the rear floor (1). Each connector (206) is connected to the rear wheel cover (7) and the rear floor longitudinal beam (8) on the corresponding side. A herringbone-shaped force transmission channel is formed in the area near the lower part of the backrest ring body (2). The force transmission channel is formed between the connector (206), the rear floor longitudinal beam (8) and the backrest ring body (2). An energy-absorbing element (303) is connected to one end face of the B-pillar (3) facing the outer side panel. The energy-absorbing element (303) is made of extruded aluminum and is attached to the end face of the B-pillar (3). The energy-absorbing element (303) extends from the bottom end of the B-pillar (3) to the top end of the B-pillar (3). The B-pillar (3) 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). An inner reinforcing plate (305) is connected to the inner side of the B-pillar reinforcing plate (302). The inner reinforcing plate (305) is connected between the front end of the B-pillar connecting plate (4) and the energy-absorbing element (303).

2. The convertible backrest ring assembly according to claim 1, characterized in that: The backrest ring body (2) includes a front support plate (201) and a rear support plate (202) arranged opposite to each other, side connecting plates (203) on the left and right sides respectively, a middle support plate (204) located between the side connecting plates (203) on both sides, and an upper crossbeam (205) connected between the top 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), and the rear side of the middle support plate (204) is connected to the rear support plate (202). The side connecting plates (203) on both sides are respectively connected to the rear wheel cover (7) on the corresponding side, and the B-pillar connecting plates (4) on both sides are respectively connected to the side connecting plates (203) on the corresponding side. The connecting pieces (206) on both sides are connected to the rear end face of the rear support plate (202).

3. The roll bar assembly for a convertible according to claim 2, characterized in that: Support members (2010) respectively arranged corresponding to each of the connecting members (206) are provided between the rear support plate (202) and the front support plate (201), the support members (2010) are connected to the front end face of the rear support plate (202), and the support members (2010) are connected to the rear floor side member (8).

4. The roll bar assembly for a convertible according to claim 3, characterized in that: The support member (2010) is box-shaped, and a portion of the support member (2010) is connected to the rear floor (1).

5. The roll bar assembly for a convertible according to claim 2, 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 member (205), a plurality of the middle support plates (204) are arranged at intervals along the left-right direction of the roll bar body (2), and each of the middle support plates (204) is disposed close to the middle portion of the roll bar body (2) in the left-right direction.

6. The roll bar assembly for a convertible according to claim 5, characterized in that: A box-shaped reinforcing bracket (209) is connected to one side of each of the middle support plates (204), the bottom of the reinforcing bracket (209) is connected to the rear floor (1), and the rear portion of the reinforcing bracket (209) is connected to the rear support plate (202).

7. The roll bar assembly for a convertible according to claim 2, characterized in that: Rear wheel house connecting plates (701) are respectively connected to the rear wheel houses (7) on both sides, and each of the side connecting plates (203) is connected to the corresponding rear wheel house (7) on the respective side via the rear wheel house connecting plate (701).

8. The roll bar assembly for a convertible according to claim 2, characterized in that: The rear ends of the B-pillar connecting plates (4) on both sides are each formed with a connecting end (401) extending toward the front support plate (201), and the connecting end (401) is connected to the front support plate (201); and / or, The B-pillar connecting plate (4) has a "几"-shaped cross section, and along the longitudinal direction of the entire vehicle, the cross section of the B-pillar connecting plate (4) gradually increases from front to rear.

9. The roll bar assembly for a convertible according to claim 2, characterized in that: The upper cross member (205) is provided with a through hole (2051) for the roll cage to pass through, and / or, the side connecting plates (203) on both sides are provided with mounting plates (208) for mounting a movable roof.

10. The roll bar assembly for a convertible according to any one of claims 1 to 9, characterized in that: The roll bar body (2) is arranged to incline toward the rear of the vehicle, and the inclination angle of the roll bar body (2) is between 0° and 27°.

11. A convertible automobile, characterized in that: The vehicle body of the convertible automobile is provided with the roll bar assembly for a convertible according to any one of claims 1 to 10.

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