Rear body structure and vehicles with it

Abstract

This invention discloses a rear body structure and a vehicle having the same. The rear body structure includes a C-pillar annular structure, a tower base annular structure, and a D-pillar annular structure. Each of the C-pillar, tower base, and D-pillar annular structures forms an independent ring, and these structures are arranged sequentially and spaced apart in the front-to-rear direction of the vehicle. According to the rear body structure of this invention, the main structure of the rear body structure exhibits smooth and unobstructed force transmission, thereby improving the durability and reliability of the rear body structure.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more particularly to a rear body structure and a vehicle having the same. Background Technology

[0002] With the rapid development of automotive technology, people have increasingly higher demands for vehicle performance. The quality of the main body structure directly affects the overall performance of the vehicle, especially the rear body structure, which is subject to complex stresses, directly bearing the forces transmitted from the road surface to the chassis and then transferring them to the body structure. The strength of the rear body structure plays a decisive role in the vehicle's durability and reliability. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a rear vehicle body structure, wherein the main structure constructed by the rear vehicle body structure has smooth and unobstructed force transmission, which can improve the durability and reliability of the rear vehicle body structure.

[0004] The present invention also proposes a vehicle comprising the aforementioned rear body structure.

[0005] According to an embodiment of the present invention, the rear vehicle body structure includes: a C-pillar annular structure, a tower base annular structure, and a D-pillar annular structure. The C-pillar annular structure, the tower base annular structure, and the D-pillar annular structure are all independently formed rings, and the C-pillar annular structure, the tower base annular structure, and the D-pillar annular structure are arranged sequentially and spaced apart in the front-to-rear direction of the vehicle.

[0006] According to embodiments of the present invention, the rear body structure comprises independently formed ring structures: a C-pillar ring structure, a tower ring structure, and a D-pillar ring structure. These ring structures are arranged sequentially and spaced apart from each other in the front-to-rear direction of the vehicle. This design results in a relatively rational force transmission structure for the rear body structure, occupies less interior space, has a relatively simple and easy manufacturing process, and is highly feasible with significant market potential. The smooth and unobstructed force transmission of the main structure created by the rear body structure improves its durability and reliability.

[0007] In some embodiments of the present invention, the C-pillar annular structure includes: a first top crossbeam, a left sunroof longitudinal beam, a right sunroof longitudinal beam, a left rear side wall lower reinforcing plate, a right rear side wall lower reinforcing plate, a left sill reinforcement plate rear section, a right sill reinforcement plate rear section, a left rear longitudinal beam, a right rear longitudinal beam, and a rear floor first crossbeam, wherein the first top crossbeam, the left sunroof longitudinal beam, the left rear side wall lower reinforcing plate, the left sill reinforcement plate rear section, the left rear longitudinal beam, the rear floor first crossbeam, the right rear longitudinal beam, the right sill reinforcement plate rear section, the right rear side wall lower reinforcing plate, and the right sunroof longitudinal beam are connected end to end in sequence.

[0008] In some embodiments of the present invention, the C-pillar annular structure further includes a first left connecting bracket and a first right connecting bracket, the left end of the first crossbeam of the rear floor is connected to the left rear longitudinal beam through the first left connecting bracket, and the right end of the second crossbeam of the rear floor is connected to the right rear longitudinal beam through the first right connecting bracket.

[0009] In some embodiments of the present invention, the C-pillar annular structure further includes: a left rear subframe front mounting bracket and a right rear subframe front mounting bracket, wherein the left rear subframe front mounting bracket is connected to the first left connecting bracket and the left rear longitudinal beam, and the right rear subframe front mounting bracket is connected to the first right connecting bracket and the right rear longitudinal beam.

[0010] In some embodiments of the present invention, the tower base annular structure includes: a second top crossbeam, a left side reinforcing plate, a right side reinforcing plate, a left rear wheel cover connecting plate, a right rear wheel cover connecting plate, a left suspension mounting plate, a right suspension mounting plate, a left rear longitudinal beam, a right rear longitudinal beam, and a rear floor second crossbeam, wherein the second top crossbeam, the left side reinforcing plate, the left rear wheel cover connecting plate, the left suspension mounting plate, the left rear longitudinal beam, the rear floor second crossbeam, the right rear longitudinal beam, the right suspension mounting plate, the right rear wheel cover connecting plate, and the right side reinforcing plate are connected end to end in sequence.

[0011] In some embodiments of the present invention, the tower base annular structure further includes a second left connecting bracket and a second right connecting bracket, the left end of the second crossbeam of the rear floor is connected to the left rear longitudinal beam through the second left connecting bracket, and the right end of the second crossbeam of the rear floor is connected to the right rear longitudinal beam through the second right connecting bracket.

[0012] In some embodiments of the present invention, the tower base annular structure further includes a left rear spring tower base and a right rear spring tower base, the left rear spring tower base being connected to the left rear longitudinal beam and the second left connecting bracket, and the right rear spring tower base being connected to the right rear longitudinal beam and the second right connecting bracket.

[0013] In some embodiments of the present invention, the left rear side panel lower reinforcing plate, the rear section of the left sill reinforcing plate, the left side panel reinforcing plate, the left suspension mounting plate and the left rear wheel cover connecting plate form a reverse K-shaped structure, and the right rear side panel lower reinforcing plate, the rear section of the right sill reinforcing plate, the right side panel reinforcing plate, the right suspension mounting plate and the right rear wheel cover connecting plate form a reverse K-shaped structure.

[0014] In some embodiments of the present invention, a left rear side panel connecting bracket is connected between the left rear side panel lower reinforcing plate and the left side panel reinforcing plate, and a right rear side panel connecting bracket is connected between the right rear side panel lower reinforcing plate and the right side panel reinforcing plate.

[0015] In some embodiments of the present invention, the D-pillar annular structure includes: a coat rack upper crossbeam, a left rear drainage channel upper plate, a right rear drainage channel upper plate, a left rear panel, a right rear panel, and a rear tail crossbeam, wherein the coat rack upper crossbeam, the left rear drainage channel upper plate, the left rear panel, the rear tail crossbeam, the right rear panel, and the right rear drainage channel upper plate are connected end to end in sequence.

[0016] In some embodiments of the present invention, the D-column annular structure further includes a coat rack, which is connected to the upper crossbeam of the coat rack.

[0017] In some embodiments of the present invention, the D-pillar annular structure further includes a left headlight crossbeam and a right headlight crossbeam, the left headlight crossbeam being connected to the upper plate of the left rear water channel and the left rear panel, and the right headlight crossbeam being connected to the upper plate of the right rear water channel and the right rear panel.

[0018] The vehicle according to an embodiment of the present invention includes the rear body structure described above.

[0019] According to embodiments of the present invention, the vehicle utilizes independently formed ring structures for the C-pillar, the tower base, and the D-pillar, arranged sequentially and spaced apart from each other in the front-to-rear direction. This results in a relatively rational force transmission structure for the rear body structure, occupies less interior space, has a relatively simple and easy manufacturing process, and is highly feasible with significant market potential. The smooth and unobstructed force transmission of the main body structure created by the rear body structure improves its durability and reliability, thereby enhancing the overall vehicle performance and product competitiveness.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a perspective view of the rear vehicle body structure according to an embodiment of the present invention;

[0023] Figure 2 This is a bottom view of the rear vehicle body structure according to an embodiment of the present invention;

[0024] Figure 3 This is a perspective view of the rear vehicle body structure according to an embodiment of the present invention from another angle;

[0025] Figure 4 This is a perspective view of the rear vehicle body structure according to an embodiment of the present invention.

[0026] Figure label:

[0027] 100. Rear body structure;

[0028] 10. C-pillar ring structure; 101. First top crossbeam; 102. Left sunroof longitudinal beam; 103. Right sunroof longitudinal beam; 104. Left rear side panel lower reinforcement plate; 105. Right rear side panel lower reinforcement plate; 106. Rear section of left sill reinforcement plate; 107. Rear section of right sill reinforcement plate; 108. Left rear longitudinal beam; 109. Right rear longitudinal beam; 110. Front mounting bracket for left rear subframe; 111. Front mounting bracket for right rear subframe; 112. First left connecting bracket; 113. First right connecting bracket; 114. First crossbeam for rear floor;

[0029] 20. Tower base ring structure; 201. Second top crossbeam; 202. Left side reinforcement plate; 203. Right side reinforcement plate; 204. Left rear wheel arch connecting plate; 205. Right rear wheel arch connecting plate; 206. Left suspension mounting plate; 207. Right suspension mounting plate; 208. Left rear spring tower base; 209. Right rear spring tower base; 210. Second left connecting bracket; 211. Second right connecting bracket; 212. Second crossbeam of the rear floor;

[0030] 30. D-seat ring structure; 301. Coat rack; 302. Upper crossbeam of coat rack; 303. Upper plate of left rear drainage channel; 304. Upper plate of right rear drainage channel; 305. Left headlight crossbeam; 306. Right headlight crossbeam; 307. Left rear panel; 308. Right rear panel; 309. Rear crossbeam;

[0031] 40. Reverse K-shaped structure; 401. Left side connecting bracket; 402. Right side connecting bracket. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do 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, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 based on the specific circumstances.

[0035] The following is for reference. Figures 1-4 The rear vehicle body structure 100 according to an embodiment of the present invention is described.

[0036] like Figure 4 As shown, the rear body structure 100 according to an embodiment of the present invention includes a C-pillar annular structure 10, a tower base annular structure 20, and a D-pillar annular structure 30. The C-pillar annular structure 10, the tower base annular structure 20, and the D-pillar annular structure 30 are all independently formed rings, which makes the assembly process simpler and the manufacturing process relatively simple. In addition, the C-pillar annular structure 10, the tower base annular structure 20, and the D-pillar annular structure 30 are arranged sequentially and spaced apart in the direction from front to rear of the vehicle. The main structure constructed by the rear body structure 100 has smooth force transmission, which can improve the durability and reliability of the rear body structure 100.

[0037] According to an embodiment of the present invention, the rear body structure 100, through independently formed ring structures of C-pillar 10, tower 20, and D-pillar 30, arranged sequentially and spaced apart in the front-to-rear direction of the vehicle, makes the force transmission structure of the rear body structure 100 relatively reasonable, occupies less space inside the vehicle, has a relatively simple and easy manufacturing process, high feasibility, and significant market potential. The smooth and unobstructed force transmission of the main structure constructed by the rear body structure 100 can improve the durability and reliability of the rear body structure 100.

[0038] In some embodiments of the present invention, such as Figure 1 , Figure 2 and Figure 3 As shown, the C-pillar ring structure 10 includes: a first top crossbeam 101, a left sunroof longitudinal beam 102, a right sunroof longitudinal beam 103, a left rear side lower reinforcing plate 104, a right rear side lower reinforcing plate 105, a left sill reinforcing plate rear section 106, a right sill reinforcing plate rear section 107, a left rear longitudinal beam 108, a right rear longitudinal beam 109, and a rear floor first crossbeam 114. The first top crossbeam 101, left sunroof longitudinal beam 102, left rear side lower reinforcing plate 104, left sill reinforcing plate rear section 106, left rear longitudinal beam 108, rear floor first crossbeam 114, right rear longitudinal beam 109, right sill reinforcing plate rear section 107, right rear side lower reinforcing plate 105, and right sunroof longitudinal beam 103 are connected end-to-end in sequence. The C-pillar ring structure 10 has a symmetrical left-right shape, which facilitates processing. The components of the C-pillar ring structure 10 can be connected to each other by welding, riveting, or screwing, forming a well-structured whole with distinct layers and reasonable strength. The C-pillar ring structure 10 plays a crucial role in lateral force transmission and significantly impacts overall vehicle performance, such as frame deformation. A complete C-pillar ring structure 10 effectively improves lateral force transmission and prevents frame deformation. Furthermore, in the event of a side collision, the C-pillar ring structure 10 is the first to bear the force, which is then transmitted to the left rear longitudinal beam 108 and the right rear longitudinal beam 109. From there, the force is transmitted to the tower block ring structure 20 and the D-pillar ring structure, dispersing the impact force and preventing excessive damage to the direct impact location, thus avoiding severe vehicle damage.

[0039] In some embodiments of the present invention, such as Figure 2As shown, the C-pillar ring structure 10 also includes a first left connecting bracket 112 and a first right connecting bracket 113. The left end of the first crossbeam 114 of the rear floor is connected to the left rear longitudinal beam 108 through the first left connecting bracket 112, and the right end of the second crossbeam 212 of the rear floor is connected to the right rear longitudinal beam 109 through the first right connecting bracket 113. Through the first left connecting bracket 112 and the first right connecting bracket 113, the force on other plates on the C-pillar ring structure 10 can be transferred to the left rear longitudinal beam 108 and the right rear longitudinal beam 109 after being subjected to force. Then, the force on the left rear longitudinal beam 108 is transferred to the rear floor first crossbeam 114 through the first left connecting bracket 112, and the force on the right rear longitudinal beam 109 is transferred to the rear floor first crossbeam 114 through the first right connecting bracket 113. Alternatively, the rear floor first crossbeam 114 can be transferred to the left rear longitudinal beam 108 through the first left connecting bracket 112, and the rear floor first crossbeam 114 can be transferred to the right rear longitudinal beam 109 through the first right connecting bracket 113. This makes the connection of the C-pillar ring structure 10 smoother, the force transmission structure on the C-pillar ring structure 10 more complete, and reduces the problem of cracking of the whole vehicle.

[0040] In some embodiments of the present invention, such as Figure 2 and Figure 4 As shown, the C-pillar ring structure 10 also includes: a left rear subframe front mounting bracket 110 and a right rear subframe front mounting bracket 111. The left rear subframe front mounting bracket 110 is connected to the first left connecting bracket 112 and the left rear longitudinal beam 108, and the right rear subframe front mounting bracket 111 is connected to the first right connecting bracket 113 and the right rear longitudinal beam 109. When the vehicle is impacted by the road surface, the left rear subframe front mounting bracket 110 and the right rear subframe front mounting bracket 111 are the first to be impacted. The left rear subframe front mounting bracket 110 transmits the impact to the rear floor first crossbeam 114 and the left rear longitudinal beam 108, while the right rear subframe front mounting bracket 111 transmits the impact to the rear floor first crossbeam 114 and the right rear longitudinal beam 109. This disperses the impact on the left and right rear subframe front mounting brackets 110 and 111 throughout the entire C-pillar annular structure 10, reducing the impact force on the left and right rear subframe front mounting brackets 110 and preventing them from deforming after being impacted, thus avoiding deformation of the C-pillar annular structure 10 and affecting vehicle safety.

[0041] In some embodiments of the present invention, such as Figure 1 , Figure 2 and Figure 3As shown, the tower base annular structure 20 includes: a second top crossbeam 201, a left side reinforcing plate 202, a right side reinforcing plate 203, a left rear wheel arch connecting plate 204, a right rear wheel arch connecting plate 205, a left suspension mounting plate 206, a right suspension mounting plate 207, a left rear longitudinal beam 108, a right rear longitudinal beam 109, and a rear floor second crossbeam 212. The second top crossbeam 201, left side reinforcing plate 202, left rear wheel arch connecting plate 204, left suspension mounting plate 206, left rear longitudinal beam 108, rear floor second crossbeam 212, right rear longitudinal beam 109, right suspension mounting plate 207, right rear wheel arch connecting plate 205, and right side reinforcing plate 203 are connected end-to-end in sequence. The tower base annular structure 20 has a symmetrical left-right shape, which facilitates processing. All components of the tower base annular structure 20 can be connected to each other by welding, riveting, or screwing, forming a well-structured whole with distinct layers and reasonable strength. The tower base ring structure 20 directly bears and transmits the main forces of the chassis, significantly impacting the overall vehicle's durability, reliability, and noise reduction performance. A complete tower base ring structure 20 can effectively improve the vehicle's durability and reliability, preventing abnormal noises during driving. Furthermore, by forming the tower base ring structure 20 into a single ring, the internal reinforcing crossbeams can be eliminated while maintaining 100% strength of the rear body structure. This allows for increased rear passenger space and a higher maximum seat opening angle.

[0042] In some embodiments of the present invention, such as Figure 2 and Figure 3 As shown, the tower base ring structure 20 also includes a second left connecting bracket 210 and a second right connecting bracket 211. The left end of the second crossbeam 212 of the rear floor is connected to the left rear longitudinal beam 108 through the second left connecting bracket 210, and the right end of the second crossbeam 212 of the rear floor is connected to the right rear longitudinal beam 109 through the second right connecting bracket 211. Through the second left connecting bracket 210 and the second right connecting bracket 211, the force on other plates on the tower base ring structure 20 can be transferred to the left rear longitudinal beam 108 and the right rear longitudinal beam 109 after being subjected to force. Then, the force on the left rear longitudinal beam 108 is transferred to the rear floor second crossbeam 212 through the second left connecting bracket 210, and the force on the right rear longitudinal beam 109 is transferred to the rear floor second crossbeam 212 through the second right connecting bracket 211. Alternatively, the rear floor second crossbeam 212 can be transferred to the left rear longitudinal beam 108 through the second left connecting bracket 210, and the rear floor second crossbeam 212 can be transferred to the right rear longitudinal beam 109 through the second right connecting bracket 211. This makes the connection of the tower base ring structure 20 smoother, the force transmission structure on the tower base ring structure 20 more complete, the overall stability more stable, and reduces the problem of cracking of the whole vehicle.

[0043] In some embodiments of the present invention, such as Figure 2As shown, the tower base annular structure 20 also includes a left rear spring tower base 208 and a right rear spring tower base 209. The left rear spring tower base 208 is connected to the left rear longitudinal beam 108 and the second left connecting bracket 210, and the right rear spring tower base 209 is connected to the right rear longitudinal beam 109 and the second right connecting bracket 211. When the vehicle is impacted by the road surface, the left rear spring tower 208, right rear spring tower 209, left suspension mounting plate 206, and right suspension mounting plate 207 are impacted first. The left rear spring tower 208 and left suspension mounting plate 206 transmit the impact to the second left connecting bracket 210 and the left rear longitudinal beam 108, while the right rear spring tower 209 and right suspension mounting plate 207 transmit the impact to the second right connecting bracket 211 and the right rear longitudinal beam 109. This disperses the impact on the left and right rear spring towers 208 and 209 throughout the entire tower ring structure 20, reducing the impact force on the left and right rear spring towers 208 and 209. This prevents the left and right rear spring towers 208 and 209 from deforming after being impacted, thus avoiding deformation of the tower ring structure 20 and affecting vehicle safety.

[0044] In some embodiments of the present invention, such as Figure 1 , Figure 3 and Figure 4 As shown, the left rear side panel lower reinforcement plate 104, the rear section of the left sill reinforcement plate 106, the left side panel reinforcement plate 202, the left suspension mounting plate 206, and the left rear wheel arch connecting plate 204 form a reverse K-shaped structure 40. Similarly, the right rear side panel lower reinforcement plate 105, the rear section of the right sill reinforcement plate 107, the right side panel reinforcement plate 203, the right suspension mounting plate 207, and the right rear wheel arch connecting plate 205 also form a reverse K-shaped structure 40. All components of the reverse K-shaped structure 40 can be connected to each other by welding, riveting, or screwing, forming a well-structured and structurally sound whole with distinct layers. The reverse K-shaped structure 40 is crucial, as it transmits the load between the C-pillar ring structure 10 and the D-pillar ring structure 30, and connects the C-pillar ring structure 10 and the D-pillar ring structure 30. This reinforcement strengthens the main load-bearing structures, reducing vehicle cracking and improving overall ride comfort.

[0045] In some embodiments of the present invention, such as Figure 1 and Figure 4 As shown, a left rear side panel connecting bracket 401 connects the left rear side panel lower reinforcing plate 104 and the left side panel reinforcing plate 202, and a right rear side panel connecting bracket 402 connects the right rear side panel lower reinforcing plate 105 and the right side panel reinforcing plate 203. The left side panel connecting bracket 401 and the right side panel connecting bracket 402 can strengthen the connection strength of the reverse K-shaped structure 40 and prevent the reverse K-shaped structure 40 from breaking due to insufficient strength when transmitting loads.

[0046] In some embodiments of the present invention, such as Figure 1 , Figure 2 and Figure 4 As shown, the D-pillar ring structure 30 includes: a coat rack 301 upper crossbeam, a left rear drainage channel upper plate 303, a right rear drainage channel upper plate 304, a left rear panel 307, a right rear panel 308, and a rear tail crossbeam 309. These components are connected sequentially end-to-end. The D-pillar ring structure 30 has a symmetrical left-right shape, facilitating processing. All components of the D-pillar ring structure 30 can be connected to each other by welding, riveting, or screwing, forming a well-structured whole with distinct layers and reasonable structural strength. The D-pillar ring structure 30 has a significant impact on the bending and torsional stiffness, frame deformation, and rear-impact performance of the entire vehicle. A complete D-pillar ring structure 30 can effectively improve the bending and torsional stiffness of the entire vehicle. When the vehicle is subjected to a rear-impact collision, the D-pillar ring structure is the first to bear the force, which is then transmitted to the left rear longitudinal beam 108 and the right rear longitudinal beam 109. From there, the force is transmitted to the tower ring structure 20, and then to the C-pillar ring structure 10 via the reverse K-shaped structure 40, thus dispersing the force throughout the vehicle. This disperses the impact force and prevents the direct impact location from being damaged too severely, thus avoiding serious damage to the vehicle.

[0047] In some embodiments of the present invention, such as Figure 1 As shown, the D-column ring structure 30 also includes a coat rack 301, which is connected to a crossbeam on its upper part. Thus, the force on the coat rack 301 can be transferred to the D-column ring structure 30, and from there to the tower base ring structure 20 and the C-column ring structure 10, increasing the load-bearing capacity of the coat rack 301 and enhancing the reliability of placing items on it.

[0048] In some embodiments of the present invention, such as Figure 1 and Figure 4 As shown, the D-pillar ring structure 30 also includes a left headlight crossbeam 305 and a right headlight crossbeam 306. The left headlight crossbeam 305 is connected to the left rear drainage channel upper plate 303 and the left rear panel 307, and the right headlight crossbeam 306 is connected to the right rear drainage channel upper plate 304 and the right rear panel 308. As part of the D-pillar ring structure 30, the left headlight crossbeam 305 and the right headlight crossbeam 306 do not primarily participate in the force transmission of the D-pillar ring structure 30, but are mainly responsible for mounting the headlights.

[0049] The rear vehicle body structure 100 according to a specific embodiment of the present invention is described below with reference to the accompanying drawings. It is to be understood that the following description is merely exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0050] Specifically, such as Figures 1-4As shown, the rear body structure 100 includes: a C-pillar ring structure 10, a tower base ring structure 20, and a D-pillar ring structure 30. The C-pillar ring structure 10, the tower base ring structure 20, and the D-pillar ring structure 30 are all independently formed rings, and the C-pillar ring structure 10, the tower base ring structure 20, and the D-pillar ring structure 30 are arranged sequentially and spaced apart in the direction from front to rear of the vehicle.

[0051] The C-pillar ring structure 10 includes: a first top crossbeam 101, a left sunroof longitudinal beam 102, a right sunroof longitudinal beam 103, a left rear side panel lower reinforcing plate 104, a right rear side panel lower reinforcing plate 105, a left sill reinforcement plate rear section 106, a right sill reinforcement plate rear section 107, a left rear longitudinal beam 108, a right rear longitudinal beam 109, a left rear subframe front mounting bracket 110, a right rear subframe front mounting bracket 111, a first left connecting bracket 112, a first right connecting bracket 113, and a rear floor first crossbeam 104. 14. The first top crossbeam 101, the left sunroof longitudinal beam 102, the left rear side panel lower reinforcement plate 104, the left sill reinforcement plate rear section 106, the left rear longitudinal beam 108, the left rear subframe front mounting bracket 110, the first left connecting bracket 112, the rear floor first crossbeam 114, the first right connecting bracket 113, the right rear subframe front mounting bracket 111, the right rear longitudinal beam 109, the right sill reinforcement plate rear section 107, the right rear side panel lower reinforcement plate 105, and the right sunroof longitudinal beam 103 are connected end to end in sequence.

[0052] The tower base annular structure 20 includes: a second top crossbeam 201, a left side reinforcing plate 202, a right side reinforcing plate 203, a left rear wheel arch connecting plate 204, a right rear wheel arch connecting plate 205, a left suspension mounting plate 206, a right suspension mounting plate 207, a left rear longitudinal beam 108, a right rear longitudinal beam 109, a left rear spring tower base 208, a right rear spring tower base 209, a second left connecting bracket 210, a second right connecting bracket 211, and a second crossbeam 202 on the rear floor. 12. The second top crossbeam 201, the left side reinforcement plate 202, the left rear wheel arch connecting plate 204, the left suspension mounting plate 206, the left rear longitudinal beam 108, the left rear spring tower 208, the second left connecting bracket 210, the rear floor second crossbeam 212, the second right connecting bracket 211, the right rear spring tower 209, the right rear longitudinal beam 109, the right suspension mounting plate 207, the right rear wheel arch connecting plate 205, and the right side reinforcement plate 203 are connected end to end in sequence.

[0053] The D-pillar ring structure 30 includes: a coat rack 301, an upper crossbeam of the coat rack 301, an upper plate 303 for the left rear drainage channel, an upper plate 304 for the right rear drainage channel, a crossbeam 305 for the left headlight, a crossbeam 306 for the right headlight, a left rear panel 307, a right rear panel 308, and a rear crossbeam 309. The upper crossbeam of the coat rack 301, the upper plate 303 for the left rear drainage channel, the crossbeam 305 for the left headlight, the left rear panel 307, the rear crossbeam 309, the right rear panel 308, the right headlight crossbeam 306, and the upper plate 304 for the right rear drainage channel are connected end-to-end in sequence. The coat rack 301 is connected to the upper crossbeam of the coat rack 301.

[0054] The left rear side panel lower reinforcing plate 104, the rear section of the left sill reinforcing plate 106, the left side panel reinforcing plate 202, the left suspension mounting plate 206, and the left rear wheel arch connecting plate 204 form a reverse K-shaped structure 40. The right rear side panel lower reinforcing plate 105, the rear section of the right sill reinforcing plate 107, the right side panel reinforcing plate 203, the right suspension mounting plate 207, and the right rear wheel arch connecting plate 205 also form a reverse K-shaped structure 40. A left side panel connecting bracket 401 connects the left rear side panel lower reinforcing plate 104 and the left side panel reinforcing plate 202, and a right side panel connecting bracket 402 connects the right rear side panel lower reinforcing plate 105 and the right side panel reinforcing plate 203.

[0055] The vehicle according to an embodiment of the present invention is described below.

[0056] The vehicle according to an embodiment of the present invention includes the aforementioned rear body structure 100. Through independently formed ring structures—a C-pillar annular structure 10, a tower base annular structure 20, and a D-pillar annular structure 30—arranged sequentially and spaced apart in the front-to-rear direction of the vehicle, the force transmission structure of the rear body structure 100 is relatively reasonable, occupies less interior space, has a relatively simple and easy manufacturing process, and is highly feasible, possessing significant market potential. The smooth and unobstructed force transmission of the main structure constructed by the rear body structure 100 can improve the durability and reliability of the rear body structure 100, thereby enhancing the overall vehicle performance and improving product competitiveness.

[0057] Optionally, the vehicle in this application can be a small vehicle such as a sedan, which has a smaller requirement for rear space and is not limited to installation on large vehicles such as SUVs. In addition, the rear seats have more space, which improves the comfort of the customer.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A rear vehicle body structure, characterized in that, include: The vehicle comprises a C-pillar ring structure, a tower base ring structure, and a D-pillar ring structure, each forming an independent ring. These ring structures are arranged sequentially and spaced apart in the front-to-back direction of the vehicle. The C-pillar ring structure includes a first top crossbeam, the tower base ring structure includes a second top crossbeam, and the D-pillar ring structure includes a coat rack crossbeam. In the front-to-back direction of the vehicle, the first top crossbeam, the second top crossbeam, and the coat rack crossbeam are arranged sequentially and spaced apart.

2. The rear vehicle body structure according to claim 1, characterized in that, The C-pillar ring structure also includes: a left sunroof longitudinal beam, a right sunroof longitudinal beam, a left rear side wall lower reinforcing plate, a right rear side wall lower reinforcing plate, a left sill reinforcing plate rear section, a right sill reinforcing plate rear section, a left rear longitudinal beam, a right rear longitudinal beam, a rear floor first crossbeam, and the first top crossbeam, the left sunroof longitudinal beam, the left rear side wall lower reinforcing plate, the left sill reinforcing plate rear section, the left rear longitudinal beam, the rear floor first crossbeam, the right rear longitudinal beam, the right sill reinforcing plate rear section, the right rear side wall lower reinforcing plate, and the right sunroof longitudinal beam are connected end to end in sequence.

3. The rear vehicle body structure according to claim 2, characterized in that, The C-pillar ring structure also includes a first left connecting bracket and a first right connecting bracket. The left end of the first crossbeam of the rear floor is connected to the left rear longitudinal beam through the first left connecting bracket, and the right end of the first crossbeam of the rear floor is connected to the right rear longitudinal beam through the first right connecting bracket.

4. The rear vehicle body structure according to claim 3, characterized in that, The C-pillar ring structure further includes: a left rear subframe front mounting bracket and a right rear subframe front mounting bracket. The left rear subframe front mounting bracket is connected to the first left connecting bracket and the left rear longitudinal beam, and the right rear subframe front mounting bracket is connected to the first right connecting bracket and the right rear longitudinal beam.

5. The rear vehicle body structure according to claim 2, characterized in that, The tower base annular structure further includes: a left side reinforcing plate, a right side reinforcing plate, a left rear wheel cover connecting plate, a right rear wheel cover connecting plate, a left suspension mounting plate, a right suspension mounting plate, a left rear longitudinal beam, a right rear longitudinal beam, a second crossbeam of the rear floor, a second top crossbeam, the left side reinforcing plate, the left rear wheel cover connecting plate, the left suspension mounting plate, the left rear longitudinal beam, the second crossbeam of the rear floor, the right rear longitudinal beam, the right suspension mounting plate, the right rear wheel cover connecting plate, and the right side reinforcing plate connected end to end in sequence.

6. The rear vehicle body structure according to claim 5, characterized in that, The tower base ring structure also includes a second left connecting bracket and a second right connecting bracket. The left end of the second crossbeam of the rear floor is connected to the left rear longitudinal beam through the second left connecting bracket, and the right end of the second crossbeam of the rear floor is connected to the right rear longitudinal beam through the second right connecting bracket.

7. The rear vehicle body structure according to claim 6, characterized in that, The annular structure of the tower base also includes a left rear spring tower base and a right rear spring tower base. The left rear spring tower base is connected to the left rear longitudinal beam and the second left connecting bracket, and the right rear spring tower base is connected to the right rear longitudinal beam and the second right connecting bracket.

8. The rear vehicle body structure according to claim 5, characterized in that, The left rear side panel lower reinforcing plate, the rear section of the left sill reinforcing plate, the left side panel reinforcing plate, the left suspension mounting plate, and the left rear wheel arch connecting plate form a reverse K-shaped structure, and the right rear side panel lower reinforcing plate, the rear section of the right sill reinforcing plate, the right side panel reinforcing plate, the right suspension mounting plate, and the right rear wheel arch connecting plate form a reverse K-shaped structure.

9. The rear vehicle body structure according to claim 5, characterized in that, A left rear side panel connecting bracket connects the left rear side panel lower reinforcing plate and the left side panel reinforcing plate, and a right rear side panel connecting bracket connects the right rear side panel lower reinforcing plate and the right side panel reinforcing plate.

10. The rear vehicle body structure according to claim 1, characterized in that, The D-pillar ring structure also includes: a left rear water trough upper plate, a right rear water trough upper plate, a left rear panel, a right rear panel, and a rear tail crossbeam, wherein the coat rack upper crossbeam, the left rear water trough upper plate, the left rear panel, the rear tail crossbeam, and the right rear water trough upper plate are connected end to end in sequence.

11. The rear vehicle body structure according to claim 10, characterized in that, The D-column ring structure also includes a coat rack, which is connected to the upper beam of the coat rack.

12. The rear vehicle body structure according to claim 10, characterized in that, The D-pillar ring structure also includes a left headlight crossbeam and a right headlight crossbeam. The left headlight crossbeam is connected to the upper plate of the left rear water channel and the left rear panel, and the right headlight crossbeam is connected to the upper plate of the right rear water channel and the right rear panel.

13. A vehicle, characterized in that, Includes the rear body structure according to any one of claims 1-12.

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