CN117922259A - Rear side door structure, door assembly and vehicle - Google Patents

Abstract

The invention relates to a rear side door structure, a vehicle door assembly and a vehicle, and relates to the technical field of vehicles. The reinforcing pipe beam is arranged on the first anti-collision beam, and extends to the bottom of the first anti-collision beam from the top of the front end of the first anti-collision beam, so that the reinforcing pipe beam is in surface contact with a threshold assembly of a vehicle. The second anti-collision beam is in face contact with the reinforcement tubular beam, and the second anti-collision beam extends along the top of the reinforcement tubular beam so that the second anti-collision beam is in face contact with the roof side rail assembly of the vehicle. The rear inner plate, the first anti-collision beam, the reinforced pipe beam and the second anti-collision beam are integrated to replace the B column, so that the number of parts of the vehicle is reduced and the user experience is improved while the side anti-collision performance of the vehicle is improved.

Description

Rear side door structure, door assembly and vehicle

Technical Field

The invention relates to the technical field of vehicles, in particular to a rear side door structure, a vehicle door assembly and a vehicle.

Background

The development of vehicles has been characterized by diversification, intellectualization, individuation, etc. in recent years, and the requirements of users on the traveling experience of the vehicles are also increasing, wherein the side door access system is a system which is most easily perceived by the users when the users go out. Therefore, with the technical development of vehicles, the form of the side door without the B column is widely welcome in the forms of the side door with the advantages of convenient getting on and off, large space in the vehicle and the like. However, since the vehicle has no B-pillar side-by-side door, it does not have the strength requirement of the existing B-pillar, thereby greatly reducing the side anti-collision performance of the vehicle.

Disclosure of Invention

The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a rear side door structure, a door assembly, and a vehicle that overcome or at least partially solve the above-mentioned problems.

According to a first aspect of the present invention, there is provided a rear side door structure comprising:

A rear inner panel;

the first anti-collision beam is arranged at the front end of the rear inner plate and is matched with the rear inner plate in shape to form a first closed cavity, wherein the first anti-collision beam extends from the top of the front end of the rear inner plate to the bottom of the rear inner plate;

The reinforcing pipe beam is arranged on the end face of the first anti-collision beam, far away from the rear inner plate, and extends to the bottom of the first anti-collision beam from the top of the front end of the first anti-collision beam so as to enable the reinforcing pipe beam to be in surface contact with a threshold assembly of a vehicle;

and a second anti-collision beam, a part of which is in surface contact with the reinforcing pipe beam, and which extends along the top of the reinforcing pipe beam so that a part of which is in surface contact with the roof side rail assembly of the vehicle.

Further, the first impact beam is provided with an impact groove having an opening toward the rear inner panel, wherein a width of the impact groove gradually increases from a bottom of the impact groove toward the opening.

Further, the both sides of first crashproof roof beam still include the fixed limit, the fixed limit with back inner panel face contact, and with back inner panel welded fastening.

Further, the reinforcing pipe beam is in surface contact with the first anti-collision beam and is welded and fixed with the reinforcing pipe beam.

Further, the wall thickness of the reinforced tubular beam is more than 3 mm.

Further, the rear side door structure further includes a third impact beam, one end of which is located on the reinforcement pipe beam, and the other end of which extends to the rear end of the rear inner panel.

Further, the rear side door structure further includes a sill reinforcing beam, one end of the sill reinforcing beam is located on the reinforcing pipe beam, and the other end extends to the rear end of the rear inner plate, so that the roof rail assembly, the first anti-collision beam, the reinforcing pipe beam, the second anti-collision beam, the third anti-collision beam, the sill reinforcing beam and the threshold assembly form a mesh structure.

Further, the height of the third impact beam from the bottom of the rear inner panel gradually decreases from the end near the reinforcing tubular beam to the rear end near the rear inner panel.

According to a second aspect of the present invention, there is provided a door assembly comprising a rear side door structure according to any one of the above aspects.

According to a third aspect of the present invention, there is provided a vehicle comprising a door assembly as described in the above summary.

Compared with the prior art, the invention discloses a rear side door structure, a vehicle door assembly and a vehicle, wherein the rear side door structure comprises a rear inner plate, a first anti-collision beam, a reinforcing pipe beam and a second anti-collision beam, wherein the first anti-collision beam is arranged at the front end of the rear inner plate and is matched with the rear inner plate in shape to form a first closed cavity, and the first anti-collision beam extends from the top of the front end of the rear inner plate to the bottom of the rear inner plate. The reinforcing pipe beam is arranged on the end face of the first anti-collision beam, which is far away from the rear inner plate, and the reinforcing pipe beam extends from the top of the front end of the first anti-collision beam to the bottom of the first anti-collision beam, so that the reinforcing pipe beam is in surface contact with a threshold assembly of a vehicle. A portion of the second impact beam is in face contact with the reinforcement tubular beam and the second impact beam extends along a top portion of the reinforcement tubular beam such that a portion of the second impact beam is in face contact with a roof rail assembly of the vehicle. Synthesize back inner panel, first crashproof roof beam, reinforcing pipe roof beam and second crashproof roof beam replace the B post to reduce the spare part quantity of vehicle and improve user experience and feel when improving the side crashproof performance of vehicle.

The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present invention more readily apparent.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures.

In the drawings:

FIG. 1 is a schematic view of a rear side door structure according to an embodiment of the present invention;

FIG. 2 is a schematic view of a first cross-sectional structure of a rear side door structure according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a second cross-sectional structure of a rear side door structure coupled to a roof rail assembly according to an embodiment of the present invention;

FIG. 4 is a schematic view of a third cross-sectional structure of a rear side door structure coupled to a threshold assembly according to an embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a vehicle according to an embodiment of the present invention.

Reference numerals: 1. a rear inner panel; 2. a first impact beam; 201. a first closed cavity; 202. fixing the edges; 3. reinforcing the tubular beam; 301. a second closed cavity; 4. a second impact beam; 5. a third impact beam; 6. a sill reinforcing beam; 7. a rear outer plate; 701. a back door cavity; 8. a day lock; 9. a roof side rail assembly; 10. a threshold assembly; 11. a front side door structure; 12. a door seal; 13. door frame sealing strip.

Detailed Description

Further advantages and effects of the present invention will become readily apparent to those skilled in the art from the disclosure herein, by referring to the accompanying drawings and the preferred embodiments. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.

It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.

Referring to fig. 1 to 4, an embodiment of the present invention provides a rear side door structure including a rear inner panel 1, a first impact beam 2, a reinforcement pipe beam 3, and a second impact beam 4, wherein:

The first anti-collision beam 2 is disposed at the front end of the rear inner plate 1 and is matched with the rear inner plate 1 in shape to form a first closed cavity 201, wherein the first anti-collision beam 2 extends from the top of the front end of the rear inner plate 1 to the bottom of the rear inner plate 1. The reinforcing pipe beam 3 is disposed on the end face of the first anti-collision beam 2 away from the rear inner plate 1, and the reinforcing pipe beam 3 extends from the top of the front end of the first anti-collision beam 2 to the bottom of the first anti-collision beam 2, so that the reinforcing pipe beam 3 is in surface contact with a threshold assembly 10 of a vehicle. A portion of the second impact beam 4 is in surface contact with the reinforcement tubular beam 3, and the second impact beam 4 extends along the top of the reinforcement tubular beam 3 such that a portion of the second impact beam 4 is in surface contact with the roof side rail assembly 9 of the vehicle.

In the embodiment of the invention, the front end is understood to be the end of the component close to the vehicle head, and the corresponding rear end is understood to be the end of the component close to the vehicle tail. The first anti-collision beam 2, the reinforcing pipe beam 3 and the second anti-collision beam 4 are all positioned in a rear door cavity 701 formed by the shape matching of the rear outer plate 7 and the rear inner plate 1. The first impact beam 2 serves to increase the structural strength of the front end of the rear side door (the B-pillar installation position in a conventional B-pillar-equipped vehicle). In some embodiments, the first impact beam 2 may be formed by a high strength steel stamping thermoforming process. The hot forming process of the high-strength steel stamping part refers to a process of heating a high-strength steel plate to an austenite temperature, then rapidly stamping the steel plate, quenching the steel plate through a die in a pressure-keeping stage and reaching a required cooling temperature, and converting austenite into martensite so as to greatly improve the strength of the formed part. For example, the high-strength steel plate may be a boron alloy steel plate. Therefore, when the first anti-collision beam 2 is in shape fit with the rear inner plate 1 to form the first closed cavity 201, the collision energy generated during the side collision can be further absorbed through the first closed cavity 201 on the basis of improving the structural strength of the rear side door of the vehicle, so that the side anti-collision performance of the vehicle can be comprehensively improved. The first impact beam 2 extends from the top of the front end of the rear inner panel 1 to the bottom of the rear inner panel 1, and it can be understood that the first impact beam 2 is disposed completely through the rear inner panel 1 from top to bottom. Therefore, the overall structural strength of the rear side door can be further improved, and the space of the first closed cavity 201 or the distribution area of the first closed cavity 201 on the rear side door can be improved, so that the side anti-collision performance of the vehicle can be further improved.

The reinforcing tubular beam 3 has a tubular structure, and a second closed cavity 301 is formed inside the reinforcing tubular beam. The reinforcing pipe beam 3 is arranged on the first anti-collision beam 2, and extends from the top of the first anti-collision beam 2 to the bottom. Therefore, the reinforcing tubular beam 3 can improve the structural strength of the front end of the rear side door, and the second closed cavity 301 formed by the reinforcing tubular beam can further absorb the collision energy generated during the side collision, so that the side anti-collision performance of the vehicle can be comprehensively improved. Wherein, the bottom of the reinforcement tubular beam 3 may extend to the outside of the rear inner panel 1, so that the bottom of the reinforcement tubular beam 3 may be in surface contact with the rocker assembly 10 of the vehicle when the rear side door is in a closed state. In other words, a certain contact area exists between the reinforcement tubular beam 3 and the threshold assembly 10, so that in the event of a side collision of the vehicle, the collision energy received by the reinforcement tubular beam 3 can be transferred to the threshold assembly 10 and the second impact beam 4 which are in contact with the reinforcement tubular beam 3, thereby effectively reducing the deformation of the rear side door and the passenger compartment and improving the riding safety factor.

The second impact beam 4 is mounted on the first impact beam 2, and a portion of the second impact beam 4 is in surface contact with the reinforcement tubular beam 3, for example, the second impact beam 4 may extend along the top of the reinforcement tubular beam 3 such that a portion of the second impact beam 4 is in surface contact with the roof side rail assembly 9 of the vehicle. In some embodiments, the second anti-collision beam 4 and the reinforcing pipe beam 3 may be disposed in parallel, and one end of the second anti-collision beam 4 is overlapped with the top of the reinforcing pipe beam 3, and the other end of the second anti-collision beam 4 extends beyond the rear inner panel 1, so that when the rear side door is in a closed state, the top of the second anti-collision beam 4 may be in surface contact with the roof side rail assembly 9 of the vehicle. In other words, a certain contact area exists between the second anti-collision beam 4 and the roof side rail assembly 9, so that in the case of a side collision of a vehicle, the collision energy received by the second anti-collision beam 4 can be respectively transferred to the reinforcing pipe beam 3 and the roof side rail assembly 9 which are in surface contact with the second anti-collision beam 4 through two ends, thereby dispersing the collision energy, effectively reducing the deformation of the rear side door and the passenger cabin, and improving the riding safety coefficient.

In the embodiment of the invention, the roof side rail assembly 9 is used for guaranteeing the torsional rigidity of the frame and bearing longitudinal load, and is used for supporting key parts of the vehicle. Which may include, but is not limited to, a side fascia outer panel, a body reinforcement beam attached to the side fascia outer panel, and the like. The rocker assembly 10 is a portion of a door frame that is positioned at a bottom portion of a vehicle door, has structural strength to support a user in and out of the vehicle, and may be used to protect the vehicle bottom structure.

When the side of the vehicle is collided, the collision energy received by the rear outer plate 7 is transferred to the reinforced pipe beam 3, and a part of the collision energy received by the reinforced pipe beam 3 is transferred to the threshold assembly 10 and the second anti-collision beam 4 along the two ends of the reinforced pipe beam 3, and then transferred to the roof side rail assembly 9 through the second anti-collision beam 4. In addition, another part of the collision energy received by the reinforcement tubular beam 3 is absorbed through the second closed cavity 301 and is transferred to the first anti-collision beam 2, and the first anti-collision beam 2 receives a certain amount of collision energy through its structural strength and can absorb the collision energy through the first closed cavity 201, so that the deformation resistance of the rear inner plate 1 and the anti-collision performance of the rear side door structure can be improved through the form of double closed cavities.

To sum up, synthesize inner panel 1, first crashproof roof beam 2, reinforcing pipe roof beam 3 and second crashproof roof beam 4 replace the B post, also can regard back inner panel 1, first crashproof roof beam 2, reinforcing pipe roof beam 3 and second crashproof roof beam 4 as the stealthy B post that sets up in the back side door to when improving the side anticollision performance of vehicle, can reduce the spare part quantity of vehicle (reduce B post structure) and improve user experience and feel. Therefore, the high integration of the vehicle can be realized, the assembly process (the assembly process of the B column structure) is reduced, and the weight of the whole vehicle is reduced.

In an alternative embodiment of the invention, referring to fig. 2, the first impact beam 2 is provided with an impact groove having an opening toward the rear inner panel 1, wherein the width of the impact groove gradually increases from the bottom of the impact groove toward the opening.

In this embodiment of the present invention, the anti-collision groove may be punched when the first anti-collision beam 2 is processed, where an opening of the anti-collision groove faces the rear inner panel 1, so that a width of the first closed cavity 201, which is obtained by matching the shapes of the first anti-collision beam 2 and the rear inner panel 1, in a width direction of the vehicle body is further increased, in other words, a deformation space of the first anti-collision beam 2 when receiving a side collision force is increased. Thereby, the absorption performance of the first closed cavity 201 on collision energy can be improved, and the side anti-collision performance of the rear side door structure is further optimized. The width W of the anti-collision groove gradually increases from the bottom of the anti-collision groove to the opening. That is, both ends of the first impact beam 2 are inclined outwardly, whereby the structural strength and deformation resistance of the first impact beam 2 can be further improved.

In an alternative embodiment of the invention, referring to fig. 2, both sides of the first impact beam 2 further include fixing edges 202, and the fixing edges 202 are in surface contact with the rear inner panel 1 and welded and fixed with the rear inner panel 1.

In the embodiment of the present invention, the fixing edge 202 and the first anti-collision beam 2 may be in an integral structure, and the fixing edge 202 is configured to ensure a contact area between the first anti-collision beam 2 and the rear inner panel 1, so that a welding area between the first anti-collision beam 2 and the rear inner panel 1 may be increased, and an overall structural strength of the rear side door structure may be improved. And the deformation resistance of the first impact beam 2 is ensured.

In an alternative embodiment of the invention, referring to fig. 2, the reinforcing tubular beam 3 is in surface contact with the first impact beam 2 and is welded and fixed to the reinforcing tubular beam 3.

In the embodiment of the present invention, the cross-sectional shape of the reinforcing pipe beam 3 may be a waist hole shape, so that the contact area between the reinforcing pipe beam 3 and the first anti-collision beam 2 may be increased on the basis of ensuring the structural strength of the reinforcing pipe beam 3, thereby increasing the welding area between the reinforcing pipe beam 3 and the first anti-collision beam 2 and improving the overall structural strength of the rear side door structure. And, can improve the dispersion of the collision force that first crashproof roof beam 2 to the transmission of strengthening tubular beam 3, optimized the side crashproof performance of rear side door structure.

In an alternative embodiment of the invention, the wall thickness of the reinforcing tubular beam 3 is above 3mm.

In the embodiment of the present invention, the wall thickness of the reinforced tubular beam 3 is more than 3mm, which can be understood as that the wall thickness is equal to 3mm or more than 3mm. So that the structural strength of the reinforcing tubular beam 3 against more impact forces can be ensured by the wall thickness of the reinforcing tubular beam 3. The reinforcing pipe beam 3 can be manufactured by adopting a hot air expansion forming process, the vehicle body reinforcing beam can also be manufactured by adopting a hot air expansion forming process, and the vehicle body reinforcing beam extends from an A column installation position to a C column installation position, so that collision energy transmitted to the roof side rail assembly 9 by the first anti-collision beam 2 during side collision can be effectively transmitted, and the forced deformation of the vehicle body is resisted.

In an alternative embodiment of the invention, the rear side door structure further includes a third impact beam 5, one end of the third impact beam 5 is located on the reinforcement tubular beam 3, and the other end extends to the rear end of the rear inner panel 1.

In this embodiment of the present invention, one end of the third anti-collision beam 5 is located on the reinforcing pipe beam 3, and may be in surface contact with the reinforcing pipe beam 3 and fixed by welding. The other end of the third impact beam 5 extends to the rear end of the rear inner panel 1, can be in surface contact with the rear inner panel 1, and is fixed by welding. Thereby, the third impact beam 5 may extend from the front end of the rear inner panel 1 to the rear end of the rear inner panel 1 in the longitudinal direction of the vehicle body, whereby the door structural strength of the rear side door may be increased, and since one end of the third impact beam 5 is disposed on the reinforcement pipe beam 3, a certain impact gap exists between the third impact beam 5 and the rear inner panel 1 in the width direction of the vehicle body, so that the impact energy of the third impact beam 5 may be absorbed through the impact gap. In addition, when the reinforcement tubular beam 3 receives a collision force, collision energy can be transferred to the third anti-collision beam 5, so that deformation of the rear side door (the rear inner plate 1) and the passenger cabin can be effectively reduced, and the riding safety coefficient can be improved.

Referring to fig. 1, in an alternative embodiment of the invention, the rear side door structure further includes a sill reinforcement beam 6, one end of the sill reinforcement beam 6 is located on the reinforcement tubular beam 3, and the other end extends to the rear end of the rear inner panel 1, so that the roof side rail assembly 9, the first impact beam 2, the reinforcement tubular beam 3, the second impact beam 4, the third impact beam 5, the sill reinforcement beam 6, and the threshold assembly 10 form a mesh structure.

In the embodiment of the present invention, the sill reinforcement beam 6 is used for reinforcing the structural strength of the window installation area of the rear side door, where one end of the sill reinforcement beam 6 may be located on the reinforcement tubular beam 3, and in surface contact with the reinforcement tubular beam 3, and fixed by welding. The other end of the sill reinforcement beam 6 extends to the rear end of the rear inner panel 1, is in surface contact with the rear inner panel 1, and is fixed by welding. Thereby, the sill reinforcement 6 may extend from the front end of the rear inner panel 1 to the rear end of the rear inner panel 1 in the longitudinal direction of the vehicle body. Thereby, the structural strength of the window mounting region of the rear side door can be increased. And, because one end of the sill reinforcement beam 6 is disposed on the reinforcement pipe beam 3, a certain anti-collision gap exists between the sill reinforcement beam 6 and the rear inner panel 1 along the width direction of the vehicle body, so that the collision energy of the sill reinforcement beam 6 can be absorbed through the anti-collision gap. In addition, when the reinforcement tubular beam 3 receives a collision force, collision energy can be transferred to the sill reinforcement beam 6, so that deformation of the rear side door (rear inner panel 1) and the passenger compartment can be effectively reduced, and the riding safety coefficient can be improved.

The sill reinforcement beam 6 is located above the third impact beam 5, and thus, the roof side beam assembly 9, the first impact beam 2, the reinforcing pipe beam 3, the second impact beam 4, the third impact beam 5, the sill reinforcement beam 6 and the threshold assembly 10 form a net structure, thereby integrally improving the structural strength of the rear side door structure. When any one of the components receives side collision force, the collision force can be rapidly dispersed and transferred to other components, so that the side anti-collision performance of the vehicle can be improved, and the riding safety coefficient of the vehicle can be improved.

In some embodiments, the sill reinforcing beam 6 may be disposed in parallel with the length direction of the vehicle body.

In an alternative embodiment of the invention, referring to fig. 1, the height of the third impact beam 5 from the bottom of the rear inner panel 1 gradually decreases from the end near the reinforcement tubular beam 3 to the rear end near the rear inner panel 1.

In this embodiment of the present invention, the height H of the third impact beam 5 from the bottom of the rear inner panel 1 gradually decreases from the end portion near the reinforcement tubular beam 3 to the rear end near the rear inner panel 1, which means that the third impact beam 5 is disposed obliquely along the length direction of the vehicle body. Therefore, under the condition that the upper side beam assembly 9, the first anti-collision beam 2, the reinforcing pipe beam 3, the second anti-collision beam 4, the third anti-collision beam 5, the windowsill reinforcing beam 6 and the doorsill assembly 10 form a net structure, the net structure with a triangular grid shape can be formed through the third anti-collision beam 5, the deformation concave amount of the rear side door during side collision is effectively reduced, and accordingly the side anti-collision performance of the rear side door structure is further improved.

In an alternative embodiment of the invention, referring to fig. 3, the rear side door structure further includes a top lock 8 and a ground lock, where the top lock 8 may be located at the top of the first impact beam 2, and the ground lock may be located at the bottom of the first impact beam 2, so that the locking state of the rear side door may be achieved when the vehicle door is in a closed state.

In summary, the embodiment of the invention discloses a rear side door structure, which may include a rear inner plate 1, a first impact beam 2, a reinforcing pipe beam 3, and a second impact beam 4, where the first impact beam 2 is disposed at the front end of the rear inner plate 1 and is matched with the rear inner plate 1 in shape to form a first closed cavity 201, and the first impact beam 2 extends from the top of the front end of the rear inner plate 1 to the bottom of the rear inner plate 1. The reinforcing pipe beam 3 is disposed on the end face of the first anti-collision beam 2 away from the rear inner plate 1, and the reinforcing pipe beam 3 extends from the top of the front end of the first anti-collision beam 2 to the bottom of the first anti-collision beam 2, so that the reinforcing pipe beam 3 is in surface contact with a threshold assembly 10 of a vehicle. A portion of the second impact beam 4 is in surface contact with the reinforcement tubular beam 3, and the second impact beam 4 extends along the top of the reinforcement tubular beam 3 such that a portion of the second impact beam 4 is in surface contact with the roof side rail assembly 9 of the vehicle. Synthesize back inner panel 1, first crashproof roof beam 2, reinforcing pipe roof beam 3 and second crashproof roof beam 4 replace the B post to reduce the spare part quantity of vehicle and improve user experience and feel when improving the side crashproof performance of vehicle.

Referring to fig. 2, the embodiment of the invention also discloses a vehicle door assembly, which may include the rear side door structure according to any one of the embodiments of the invention.

In an embodiment of the present invention, the door assembly may include the rear side door structure and the front side door structure 11 according to any one of the embodiments of the present invention.

In an alternative embodiment of the invention, referring to fig. 2, the door assembly further includes a door sealing strip 12, where the door sealing strip 12 is disposed on the faying surface between the rear side door structure and the front side door structure 11, so that sealing of the front and rear side doors can be achieved by the door sealing strip 12.

In an alternative embodiment of the invention, referring to fig. 3 and 4, the door assembly further includes a door frame sealing strip 13, where the door frame sealing strip 13 is disposed on an overlap surface between the door sill assembly 10 and the rear side door structure and an overlap surface between the roof side rail assembly 9 and the rear side door structure, so that sealing between the rear side door and the vehicle body can be achieved by the door frame sealing strip 13.

Referring to fig. 5, the embodiment of the invention also discloses a vehicle, which may include the vehicle door assembly according to the embodiment of the invention.

In summary, the embodiment of the invention discloses a rear side door structure, a door assembly and a vehicle, the rear side door structure comprises a rear inner plate 1, a first anti-collision beam 2, a reinforcement pipe beam 3 and a second anti-collision beam 4, wherein the first anti-collision beam 2 is arranged at the front end of the rear inner plate 1 and is matched with the rear inner plate 1 in shape to form a first closed cavity 201, and the first anti-collision beam 2 extends from the top of the front end of the rear inner plate 1 to the bottom of the rear inner plate 1. The reinforcing pipe beam 3 is disposed on the end face of the first anti-collision beam 2 away from the rear inner plate 1, and the reinforcing pipe beam 3 extends from the top of the front end of the first anti-collision beam 2 to the bottom of the first anti-collision beam 2, so that the reinforcing pipe beam 3 is in surface contact with a threshold assembly 10 of a vehicle. A portion of the second impact beam 4 is in surface contact with the reinforcement tubular beam 3, and the second impact beam 4 extends along the top of the reinforcement tubular beam 3 such that a portion of the second impact beam 4 is in surface contact with the roof side rail assembly 9 of the vehicle. Synthesize back inner panel 1, first crashproof roof beam 2, reinforcing pipe roof beam 3 and second crashproof roof beam 4 replace the B post to reduce the spare part quantity of vehicle and improve user experience and feel when improving the side crashproof performance of vehicle.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

As will be readily appreciated by those skilled in the art: any combination of the above embodiments is possible, and thus is an embodiment of the present invention, but the present specification is not limited by the text.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects.

Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

Claims (10)

1. A rear side door structure, characterized in that the rear side door structure comprises:

a rear inner panel (1);

The first anti-collision beam (2) is arranged at the front end of the rear inner plate (1) and is matched with the rear inner plate (1) in shape to form a first closed cavity (201), wherein the first anti-collision beam (2) extends to the bottom of the rear inner plate (1) from the top of the front end of the rear inner plate (1);

The reinforcing pipe beam (3) is arranged on the end face of the first anti-collision beam (2) away from the rear inner plate (1), and the reinforcing pipe beam (3) extends to the bottom of the first anti-collision beam (2) from the top of the front end of the first anti-collision beam (2) so that the reinforcing pipe beam (3) is in surface contact with a threshold assembly (10) of a vehicle;

And a part of the second anti-collision beam (4) is in surface contact with the reinforced pipe beam (3), and the second anti-collision beam (4) extends along the top of the reinforced pipe beam (3) so that the part of the second anti-collision beam (4) is in surface contact with the upper side beam assembly (9) of the vehicle.

2. Rear side door structure according to claim 1, characterized in that the first impact beam (2) is provided with an impact channel opening towards the rear inner panel (1), wherein the width of the impact channel increases gradually from the bottom of the impact channel towards the opening.

3. The rear side door structure according to claim 2, wherein both sides of the first impact beam (2) further include a fixing edge (202), the fixing edge (202) being in surface contact with the rear inner panel (1) and being welded-fixed with the rear inner panel (1).

4. The rear side door structure according to claim 1, wherein the reinforcement pipe beam (3) is in surface contact with the first impact beam (2) and is welded and fixed to the reinforcement pipe beam (3).

5. The rear side door structure according to claim 4, wherein the wall thickness of the reinforcement tubular beam (3) is 3mm or more.

6. The rear side door structure according to claim 1, further comprising a third impact beam (5), one end of the third impact beam (5) being located on the reinforcement pipe beam (3) and the other end extending onto the rear end of the rear inner panel (1).

7. The rear side door structure according to claim 6, further comprising a sill reinforcement beam (6), one end of the sill reinforcement beam (6) being located on the reinforcement tubular beam (3) and the other end extending onto the rear end of the rear inner panel (1) such that the roof rail assembly (9), the first impact beam (2), the reinforcement tubular beam (3), the second impact beam (4), the third impact beam (5), the sill reinforcement beam (6) and the threshold assembly (10) form a mesh structure.

8. The rear side door structure according to claim 7, wherein the height of the third impact beam (5) from the bottom of the rear inner panel (1) gradually decreases from an end near the reinforcement pipe beam (3) to a rear end near the rear inner panel (1).

9. A vehicle door assembly comprising the rear side door structure of any one of claims 1-8.

10. A vehicle comprising the door assembly of claim 9.