CN220809088U - Vehicle door assembly - Google Patents

Abstract

The application relates to the technical field of vehicles, and provides an improved vehicle door assembly, which solves the problems that an anti-collision beam of the existing vehicle door assembly is easy to bend, break and invade a cab during side collision, and comprises a vehicle door inner plate and an anti-collision beam assembly, wherein the anti-collision beam assembly comprises an anti-collision beam and a reinforced sealing plate, and the anti-collision beam is fixedly connected on the vehicle door inner plate and protrudes towards a direction deviating from the vehicle door inner plate to form a beam buffer groove; the reinforcing sealing plate is fixed on the anti-collision beam and positioned between the anti-collision beam and the vehicle door inner plate, and protrudes towards the direction of the vehicle door inner plate to form a plate buffer groove, and the plate buffer groove and the beam buffer groove are correspondingly arranged and communicated to form a first reinforcing cavity. The application has the beneficial effects that: the structural strength of the anti-collision beam is improved by the reinforcing sealing plates, the impact force generated by the collision of the anti-collision beam can be absorbed in an auxiliary mode, the risk of breakage of the anti-collision beam is obviously reduced, personnel injury caused by the fact that the anti-collision beam invades a cab due to breakage is avoided, the protection effect is better, and the safety is higher.

Description

Vehicle door assembly

Technical Field

The application relates to the technical field of vehicles, in particular to a vehicle door assembly capable of resisting larger lateral impact.

Background

With the continuous increase of the quantity of the automobile, traffic accidents bring huge losses to China every year. The side collision accident accounts for about 41.8% of the total accident number, which is far beyond the proportion of the front collision and rear collision. How to ensure that the door can form good intrusion protection to the cab side during a collision has become an important point in door design. The anti-collision beam is used as the most important energy absorption structure in the vehicle door assembly, and is important to the safety of side collision of the vehicle.

Most of anti-collision beams of the existing car door assemblies are of flat plate structures or simple cross-sectional shapes, high-strength hot-formed steel materials are generally adopted to manufacture the anti-collision beams, so that the problem of insufficient strength caused by structural design of the flat plate structures or the simple cross-sectional shapes is avoided. However, the thermal forming steel has poor material extension, and the anti-collision beam can be broken and failed due to serious local bending in severe collision, so that the invasion amount of the vehicle door to the cab side is greatly increased, and the safety of passengers is seriously endangered.

Accordingly, there is a need for an improvement in the structure of existing door assemblies for vehicles to overcome the above-mentioned problems.

Disclosure of utility model

In order to solve the technical problems, the application provides an improved vehicle door assembly, which structurally reinforces an anti-collision beam through a reinforcing sealing plate, and simultaneously integrally reinforces the anti-collision beam and the reinforcing sealing plate by matching a first reinforcing cavity formed between a Liang Huan notching and a plate buffering groove, so that when high-strength hot-formed steel is not used, the integral strength of the anti-collision beam assembly can be improved in a structurally improved mode without influencing the extensibility of the anti-collision beam.

In order to solve the above problems, in one aspect of the present application, there is provided a door assembly including a door inner panel and an impact beam assembly, wherein the impact beam assembly includes an impact beam and a reinforcing seal plate; the anti-collision beam is fixedly connected to the vehicle door inner plate, and protrudes towards the direction away from the vehicle door inner plate to form a beam buffer groove; the reinforced sealing plate is fixedly connected to the anti-collision beam and is positioned between the anti-collision beam and the vehicle door inner plate; the reinforced sealing plate protrudes towards the direction of the inner plate of the vehicle door to form a plate buffer groove, and the plate buffer groove is correspondingly arranged with the beam buffer groove and communicated with the beam buffer groove to form a first reinforced cavity.

In some embodiments, the impact beam is pulsed along a height direction of the door inner panel; the anti-collision beam further comprises a connecting plate body connected with the beam buffer groove, and the connecting plate body is at least partially connected with the vehicle door inner plate;

The reinforced sealing plate further comprises a connecting flange connected with the plate buffer groove, and the connecting flange is at least partially and fixedly connected with the connecting plate body.

In some embodiments, the connecting flange is wavy along the width direction of the inner door panel, and a second reinforcing cavity is formed between the connecting flange and the corresponding connecting plate body;

The second reinforcing cavity is communicated to the first reinforcing cavity, and the second reinforcing cavity is vertically arranged on two sides of the first reinforcing cavity.

In some embodiments, the impact beam assembly further comprises a stopper bracket fixedly connected between the impact beam and the door inner panel; the limiter bracket comprises a reinforcing plate, a first reinforcing edge and a second reinforcing edge, wherein the first reinforcing edge and the second reinforcing edge are connected to two opposite sides of the reinforcing plate and extend to the same side of the reinforcing plate; the first reinforcing edge is fixedly connected with the anti-collision beam, and the second reinforcing edge is fixedly connected with the inner plate of the vehicle door.

In some embodiments, the reinforcing plate is provided with a structural reinforcing groove formed by recessing the surface of the reinforcing plate to one side.

In some embodiments, the stopper bracket further includes a reinforcing flange, the reinforcing flange is fixedly connected to the reinforcing plate and the side ends of the first reinforcing edge and the second reinforcing edge, and the edge of the reinforcing flange is bent and extended to the outer side far away from the reinforcing plate.

In some embodiments, the anti-collision beam assembly further comprises a support bracket fixedly connected between the anti-collision beam and the inner door panel, the support bracket comprises a concave area, a first flanging and a second flanging, and the first flanging and the second flanging are connected to two opposite sides of the opening of the concave area and respectively bend and extend to the outer side far away from the concave area; wherein,

The first flanging is fixedly connected with the anti-collision beam, the second flanging is fixedly connected between the anti-collision beam and the vehicle door inner plate, the opening of the concave area faces the anti-collision beam, a third reinforcing cavity is formed between the concave area and the anti-collision beam, and the bottom of the concave area is fixedly connected with the vehicle door inner plate.

In some embodiments, the support bracket is provided with a support reinforcing rib, and the support reinforcing rib is disposed corresponding to the beam buffer groove and extends to the recess region, the first flange and the second flange.

In some embodiments, the door assembly further comprises a door frame and a door outer plate, the door inner plate and the door outer plate are respectively fixedly connected to the inner side and the outer side of the door frame, and the anti-collision beam assembly is arranged among the door frame, the door inner plate and the door outer plate;

The door inner panel includes an inner panel body, a lap edge vertically surrounding a periphery of the inner panel body, and a lap plate connected between the lap edge and the door frame in parallel to the inner panel body.

In some embodiments, the impact beam is abutted against and fixedly connected with the door outer panel, and a buffer space is reserved between the impact beam and the inner panel main body.

The beneficial effects of the application are as follows: the vehicle door assembly comprises the vehicle door inner plate and the anti-collision beam assembly, the anti-collision beam is fixedly connected with the reinforcing sealing plate, the first reinforcing cavity is formed between the Liang Huan notching groove of the anti-collision beam and the plate buffering groove of the reinforcing sealing plate, the anti-collision beam is structurally reinforced through the reinforcing sealing plate, meanwhile, the anti-collision beam and the reinforcing sealing plate are integrally reinforced by matching with the first reinforcing cavity, when high-strength hot-formed steel is not used, the integral strength of the anti-collision beam assembly is obviously improved in a structural improvement mode, the reinforcing sealing plate can assist in absorbing the impact force received by the anti-collision beam during side collision, the lateral impact force transmitted to a cab is greatly slowed down, the risk of bending and breaking of the anti-collision beam is reduced, the problem that the vehicle door excessively invades the cab and causes personnel injury due to bending and breaking of the anti-collision beam during severe collision is avoided, the side protection effect on the vehicle is better, and the safety is higher.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the application and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art, in which:

FIG. 1 is a schematic view of the overall structure of a vehicle door assembly of the present application, including a vehicle door inner panel, a vehicle door outer panel, and a bumper beam assembly including a bumper beam, a reinforcing closure plate, a retainer bracket, and a support bracket;

FIG. 2 is a schematic illustration of the assembled structure of the impact beam assembly and the door inner panel of FIG. 1;

FIG. 3 is a schematic view of the overall structure of the impact beam assembly of FIG. 1;

FIG. 4 is a schematic view of the overall structure of the impact beam of FIG. 1;

FIG. 5 is a schematic view of the overall structure of the reinforced seal plate of FIG. 1;

FIG. 6 is a schematic view of the assembled structure of the reinforcing closure plate and impact beam of FIG. 1;

FIG. 7 is a schematic view of the overall structure of the stopper bracket of FIG. 1;

FIG. 8 is a schematic view of the overall structure of the support bracket of FIG. 1;

Wherein: 10. the door, 11, door frame, 12, door inner panel, 121, inner panel body, 122, overlap, 123, overlap, 13, door outer panel, 14, door hinge, 20, bumper beam, 21, liang Huan slot, 22, web, 23, first bracket attachment slot, 24, second bracket attachment slot, 30, reinforcing closure, 31, panel buffer slot, 32, connecting flange, 321, boss, 40, retainer bracket, 41, reinforcing plate, 42, first reinforcing edge, 421, first recess, 422, first projection, 43, second reinforcing edge, 44, structural reinforcing groove, 45, reinforcing flange, 50, support bracket, 51, recessed area, 52, first flange, 53, second flange, 54, support rib, 60, first reinforcing cavity, 70, second reinforcing cavity, 80, third reinforcing cavity.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are intended to be within the scope of the present disclosure.

In one aspect of the present application, there is provided a door assembly, in which a longitudinal direction of a vehicle body (not shown) is defined as an X direction (a front end of the vehicle is a rear end of the vehicle), a width direction of the vehicle body is defined as a Y direction (an inward direction toward the vehicle body is an outward direction away from the vehicle body), a height direction of the vehicle body is defined as a Z direction (a roof is an upper side and a bottom is a lower side), and the door assembly is movably hinged to the vehicle body along the X direction.

Referring to fig. 1 to 3, in one embodiment of the present application, taking a left front door of a vehicle as an example, a door assembly includes a door 10 and an impact beam assembly, wherein the door 10 includes a door frame 11 functioning as a support frame, and a door inner panel 12 and a door outer panel 13 respectively covering both inner and outer sides of the door frame 11, a door hinge 14 is provided at a front end of the door frame 11 corresponding to a pillar of a vehicle body, and the door 10 is movably hinged to the vehicle body through the door hinge 14. The impact beam assembly is fixedly connected between the door frame 11, the door inner panel 12 and the door outer panel 13 along the X direction, and is fixed in an inclined posture with one end high and the other end low, so that the impact beam assembly can provide lateral support in the Y direction for the door 10 in a larger range.

The anti-collision beam assembly comprises an anti-collision beam 20 and a reinforced sealing plate 30, wherein the anti-collision beam 20 is integrally formed by pressing steel plates and fixedly connected to the inner door plate 12, and a beam buffer groove 21 is formed on the anti-collision beam 20 in a protruding mode in the direction (outwards in the Y direction) away from the inner door plate 12.

The reinforcing seal plate 30 is integrally formed by pressing a steel plate, is fixedly connected to the anti-collision beam 20 and is positioned between the anti-collision beam 20 and the door inner plate 12, the reinforcing seal plate 30 protrudes towards the direction (in the Y direction) of the door inner plate 12 to form a plate buffer groove 31, and the plate buffer groove 31 and the beam buffer groove 21 are correspondingly arranged and communicated to form a first reinforcing cavity 60.

The beam buffer groove 21 extends along the length direction (X direction) of the anti-collision beam 20, so that the structural strength of the anti-collision beam 20 body is improved, the anti-collision beam 20 assembly is matched with the plate buffer groove 31, the lateral supporting force of the anti-collision beam 20 assembly on the car door 10 in the Y direction can be remarkably improved, and the safety is higher.

According to the vehicle door 10 assembly, the reinforced sealing plates 30 are fixedly connected to the anti-collision beam 20, the first reinforced cavity 60 is formed between the beam buffer groove 21 of the anti-collision beam 20 and the plate buffer groove 31 of the reinforced sealing plates 30, the anti-collision beam 20 is structurally reinforced through the reinforced sealing plates 30, meanwhile, the anti-collision beam 20 and the reinforced sealing plates 30 are integrally reinforced by being matched with the first reinforced cavity 60, when high-strength hot-formed steel materials are not used, the integral strength of the anti-collision beam assembly is remarkably improved in a structural improvement mode, the reinforced sealing plates 30 can assist in absorbing impact force received by the anti-collision beam 20 in side collision, lateral impact transmitted to a cab is greatly reduced, the risk of bending fracture of the anti-collision beam 20 is reduced, the problem that the vehicle door 10 excessively invades the cab and causes passenger injury due to bending fracture of the anti-collision beam 20 in severe collision is avoided, the side protection effect on the vehicle is better, and the safety is higher.

In order to ensure the overall strength of the impact beam assembly, the reinforcing seal plate 30 is fixed to the central portion of the impact beam 20, and the extension length of the reinforcing seal plate 30 is preferably greater than 1/3 of the extension length of the impact beam 20. Of course, the greater the extension length of the reinforcing seal plate 30, the better the reinforcing effect on the impact beam 20, and the length thereof can be designed with consideration to cost control on the premise of ensuring the reinforcing effect.

Referring to fig. 3 to 6, in one embodiment of the present application, the impact beam 20 further includes a connection plate body 22 connecting the beam buffer groove 21, and the connection plate body 22 is at least partially fixedly welded to the door inner panel 12.

Along the height direction (Z direction) of the door inner panel 12, the transverse cross section of the impact beam 20 is pulsed.

The reinforcing seal plate 30 further includes a connection flange 32 of the connection plate buffer slot 31, and the connection flange 32 is at least partially fixedly connected to the connection plate body 22.

The connecting plate body 22 provides not only a supporting and fixing plane for the reinforcing seal plate 30, but also an additional supporting and fixing plane for the fixed connection of the impact beam 20 to the door inner panel 12. The transverse cross section of the anti-collision beam 20 in the Z direction is in a pulse shape, so that a plurality of beam buffer grooves 21 on the anti-collision beam 20 can be arranged, thereby improving the structural strength of the anti-collision beam 20, in this embodiment, two beam buffer grooves 21 and plate buffer grooves 31 are taken as examples for illustration, and in other embodiments, the specific number of the beam buffer grooves 21 and the plate buffer grooves 31 can be adjusted according to actual requirements.

As shown in fig. 6, during actual assembly, the connection flanges 32 on the upper and lower sides of the reinforcing seal plate 30 and the corresponding connection plate 22 of the anti-collision beam 20 are welded and fixed by double-layer welding, and the connection flanges 32 between the plate buffer slots 31 may not abut against the corresponding connection plate 22, so that the first reinforcing cavities 60 between the plurality of beam buffer slots 21 and the corresponding plate buffer slots 31 are communicated into a whole, the volume of the first reinforcing cavities 60 is increased, and the lateral supporting force of the anti-collision beam assembly on the vehicle door 10 in the Y direction can be further increased.

Of course, in other embodiments, the connection flanges 32 of the reinforcing seal plates 30 may be welded to the corresponding connection plate bodies 22, so as to further improve the reliability of the fixed connection between the reinforcing seal plates 30 and the impact beam 20.

Referring to fig. 3 to 6, in one embodiment of the present application, the transverse cross section of the connecting flange 32 is wavy along the width direction (X direction) of the door inner panel 12, and this structural design enables a plurality of protruding portions 321 arranged at intervals to be formed on the connecting flange 32, and the protruding portions 321 function like reinforcing ribs, so that the structural strength of the reinforcing seal plate 30 can be further improved. After the reinforcing seal plates 30 are fixed on the anti-collision beams 20, second reinforcing cavities 70 can be formed between the protruding portions 321 and the corresponding connecting plate bodies 22, the second reinforcing cavities 70 are communicated to the first reinforcing cavities 60, and the second reinforcing cavities 70 are vertically arranged on two sides of the first reinforcing cavities 60. The structural design enables the second reinforcing cavity 70 to play a role in laterally supporting and reinforcing the first reinforcing cavity 60, so that the structural strength of the anti-collision beam assembly is further improved, better lateral support and protection are provided for the vehicle door 10, and the problems that the vehicle door 10 invades a cab and causes passenger damage due to total bending and fracture of the anti-collision beam 20 are avoided.

Referring to fig. 1 to 2, in one embodiment of the present application, the door inner panel 12 includes an inner panel body 121, a bridging edge 122 vertically surrounding the periphery of the inner panel body 121, and a bridging plate 123 connected between the bridging edge 122 and the door frame 11 in parallel to the inner panel body 121, and the structural design is such that the body portion of the door inner panel 12 forms a cavity protruding toward the inside of the cab for accommodating the door 10 interior components such as a bumper beam assembly, a window mechanism, a speaker, and the like.

As one preferred embodiment of the present application, the door inner panel 12 and the door frame 11 are integrated, and compared with the combined welded door 10 structure, the integrated structural design of the door inner panel 12 and the door frame 11 significantly improves the overall structural strength of the door 10, has stronger torsional rigidity, and can provide better lateral protection for passengers by matching with the anti-collision beam assembly, and has higher safety. In addition, the integrated structural design also reduces the steps of combined welding of the vehicle door 10, and improves the production efficiency.

Referring to fig. 1 to 3, in one embodiment of the present application, the impact beam assembly further includes a stopper bracket 40 and a support bracket 50 fixedly coupled between the impact beam 20 and the door inner panel 12, wherein the stopper bracket 40 is fixed to a front side end surface of the impact beam 20 facing the inner panel body 121, the support bracket 50 is fixed to a rear side end surface of the impact beam 20 facing the inner panel body 121, the stopper bracket 40 cooperates with the support bracket 50 to support the impact beam 20 from front and rear ends, respectively, and fixedly couple the impact beam 20 to the door inner panel 12.

The retainer bracket 40 is used for fixedly assembling a retainer (not shown) of the vehicle door 10, the retainer is arranged between the door hinges 14, one end of the retainer is connected with the vehicle door 10 through the retainer bracket 40, and the other end of the retainer is connected with a corresponding position of the A column of the vehicle body for controlling the opening amplitude of the vehicle door 10. The stopper bracket 40 is fixedly connected between the front end of the impact beam 20 and the door inner panel 12 along the Y direction, and the stopper bracket 40 includes a reinforcing plate 41, a first reinforcing edge 42, a second reinforcing edge 43, and a reinforcing flange 45.

Wherein, reinforcing plate 41 is the plate structure, leans on corresponding overlap edge 122 and door frame 11, and first reinforcing edge 42 and second reinforcing edge 43 fixed connection are on the relative inside and outside both sides edge of reinforcing plate 41 to extend to reinforcing plate 41 one side of overlap edge 122 and door frame 11 dorsad, strengthen turn-ups 45 fixed connection respectively on reinforcing plate 41 and the upper and lower both sides end of first reinforcing edge 42 and second reinforcing edge 43 for stopper support 40 forms the groove structure, guarantees stopper support 40's overall structure intensity. The first reinforcing edge 42 is fitted to and fixedly connected with the inner end surface of the impact beam 20 facing the inner panel body 121, and the second reinforcing edge 43 is abutted against and welded to the inner panel body 121.

According to the anti-collision beam assembly provided by the application, the limiter bracket 40 is fixedly connected to the lap joint structure of the anti-collision beam 20 and the vehicle door 10, and lateral support in the Y direction is provided for the front end of the anti-collision beam 20, so that the anti-collision beam 20 can bear larger lateral impact force, and bending and breaking of the anti-collision beam 20 in the severe side collision process are avoided. Moreover, the setting of stopper support 40 makes the buffer space that has formed between crashproof roof beam 20 and the inner panel main part 121, does benefit to crashproof roof beam 20 side and bumps deformation energy-absorbing in-process. In addition, the stopper bracket 40 is abutted against the corresponding overlap edge 122 and the door frame 11, so that the strength and connection reliability of the overlap structure between the anti-collision beam 20 and the door inner panel 12 are ensured, and the risk of serious intrusion of the door 10 into the cab caused by failure of the overlap structure between the anti-collision beam 20 and the door 10 in the side collision process is remarkably reduced.

Referring to fig. 3 and 7, in one embodiment of the present application, a structural reinforcing groove 44 is provided in the reinforcing plate 41, and the structural reinforcing groove 44 is formed by recessing the surface of the reinforcing plate 41 toward the rear side away from the corresponding bridging edge 122 and the door frame 11, and this structural design significantly improves the structural strength of the reinforcing plate 41, improves the support and torsional rigidity of the retainer bracket 40 in the Y direction, and ensures the reliability and stability of the fixed connection of the impact beam 20 and the door inner panel 12.

Referring to fig. 3, 4 and 7, in one embodiment of the present application, a first bracket fixing groove 23 is provided at a position where the impact beam 20 is fixedly connected to the stopper bracket 40, the first bracket fixing groove 23 has stepped portions (not shown) with high and low dislocation, and the first reinforcing edge 42 has a shape matching the first bracket fixing groove 23 and has a first concave portion 421 and a first convex portion 422 matching the stepped portions. In actual assembly, the first concave portion 421 correspondingly abuts against the corresponding step portion in the high position, the first convex portion 422 correspondingly abuts against the corresponding step portion in the low position, and the first reinforcing edge 42 is welded and fixed on the first bracket fixing groove 23 in a double-layer welding mode. The structural design ensures the reliability and stability of the fixed connection of the limiter bracket 40 and the anti-collision beam 20, and improves the lateral support of the limiter bracket 40 to the anti-collision beam 20.

Referring to fig. 7, in one embodiment of the present application, edges of the reinforcing flanges 45 are respectively bent and extended toward the upper/lower sides away from the reinforcing plate 41, so that outwardly bent flange structures are formed at the upper and lower both side ends of the stopper bracket 40, further improving the structural strength and torsional rigidity of the stopper bracket 40 in the Y direction, and improving the lateral support of the impact beam 20 by the stopper bracket 40.

Referring to fig. 2 to 4 and 8, in one embodiment of the present application, the support bracket 50 includes a concave region 51, a first flange 52 and a second flange 53, wherein the first flange 52 and the second flange 53 are respectively connected to the front side and the rear side of the opening of the concave region 51, and respectively bend and extend towards the outer side far from the concave region 51, so that the transverse cross section of the support bracket 50 in the X direction is in a structure similar to a shape of a "table" or a structure similar to a shape of an "Ω".

In actual assembly, the first flange 52 is welded and fixed to the front portion of the rear end face of the impact beam 20 facing the inner panel body 121 (i.e., the corresponding position of the connecting plate body 22) by means of double-layer welding, the second flange 53 is welded and fixed between the rear end face of the impact beam 20 facing the inner panel body 121 (i.e., the corresponding position of the connecting plate body 22) and the corresponding lapping plate 123 by means of triple-layer welding, the opening of the concave region 51 faces the impact beam 20, a third reinforcing cavity 80 is formed between the concave region 51 and the impact beam 20, and the concave region 51 faces the bottom of the door inner panel 12 and is welded and fixed to the inner panel body 121.

According to the anti-collision beam assembly provided by the application, the supporting bracket 50 is fixedly connected to the lap joint structure of the anti-collision beam 20 and the vehicle door 10, and lateral support in the Y direction is provided for the rear end of the anti-collision beam 20, so that the anti-collision beam 20 can bear larger lateral impact force, and bending fracture of the anti-collision beam 20 in the severe side collision process is avoided. Moreover, the support bracket 50 forms a buffer space between the anti-collision beam 20 and the inner plate main body 121, which is beneficial to deformation energy absorption in the side collision process of the anti-collision beam 20. In addition, the design of the third reinforcing cavity 80 improves the strength and connection reliability of the lap joint structure between the rear end of the impact beam 20 and the door inner panel 12, remarkably improves the lateral support of the support bracket 50 to the rear end of the impact beam 20, and further reduces the risk of serious intrusion of the door 10 into the cab caused by failure of the lap joint structure between the impact beam 20 and the door 10 during a side collision.

Referring to fig. 8, in one embodiment of the present application, a support rib 54 is further provided on the support bracket 50, and the support rib 54 is disposed corresponding to the beam buffer 21 and extends to the longitudinal recess 51, the first flange 52 and the second flange 53. The structural design remarkably improves the overall structural strength of the support bracket 50, and further improves the lateral support of the support bracket 50 to the rear end of the anti-collision beam 20.

In this embodiment, two support ribs 54 are taken as an example, and in other embodiments, the number of support ribs 54 can be adjusted according to actual needs.

Referring to fig. 3, 4 and 8, in one embodiment of the present application, a second bracket fixing groove 24 is provided at a position where the impact beam 20 is fixedly connected to the support bracket 50, the second bracket fixing groove 24 also has a stepped portion (not shown) with a height and a height staggered, and a concave-convex structure surface (not shown) having a shape matching the shape of the second bracket fixing groove 24 is provided at a corresponding position of the first flange 52. During actual assembly, the first flange 52 abuts against the anti-collision beam 20, the concave-convex structural surface of the first flange 52 is matched with the second bracket fixing groove 24, and the first flange 52 is welded and fixed on the anti-collision beam 20 in a double-layer welding mode. The structural design ensures the reliability and stability of the fixed connection between the support bracket 50 and the anti-collision beam 20, and improves the lateral support of the support bracket 50 to the anti-collision beam 20.

In one embodiment of the present application, after the impact beam assembly is fixed in the vehicle door 10, the outer sidewall of the impact beam 20, that is, the bottom outer wall surface of the beam buffer slot 21 is abutted against the inner wall surface of the vehicle door outer panel 13 and fixedly connected with the vehicle door outer panel 13, so that a buffer space is formed between the impact beam 20 and the inner panel body 121, which is beneficial to deformation and energy absorption of the impact beam 20. Preferably, glue grooves (not shown) may be provided at corresponding positions on the outer side walls of the impact beam 20 to adhesively fix the impact beam 20 to the door outer panel 13. The design enables the anti-collision beam 20 to directly receive the lateral impact force transmitted by the outer plate 13 of the vehicle door and deform and absorb energy fully, so that the impact force transmitted to the side of the cab is absorbed to the greatest extent, and passengers are prevented from being damaged due to excessive invasion of the vehicle door 10, and the safety is higher.

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the application, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims (10)

1. A vehicle door assembly comprising a vehicle door inner panel (12) and an impact beam assembly, wherein the impact beam assembly comprises:

An anti-collision beam (20), wherein the anti-collision beam (20) is fixedly connected to the vehicle door inner plate (12), and the anti-collision beam (20) protrudes towards the direction away from the vehicle door inner plate (12) to form a beam buffer groove (21);

A reinforcing seal plate (30), wherein the reinforcing seal plate (30) is fixedly connected to the anti-collision beam (20) and is positioned between the anti-collision beam (20) and the vehicle door inner plate (12); wherein the method comprises the steps of

The reinforcing seal plate (30) protrudes towards the direction of the vehicle door inner plate (12) to form a plate buffer groove (31), and the plate buffer groove (31) and the beam buffer groove (21) are correspondingly arranged and communicated to form a first reinforcing cavity (60).

2. The vehicle door assembly according to claim 1, characterized in that the impact beam (20) is pulse-shaped along a height direction of the door inner panel (12); the anti-collision beam (20) further comprises a connecting plate body (22) connected with the Liang Huan punching groove (21), and the connecting plate body (22) is at least partially connected with the vehicle door inner plate (12);

The reinforced sealing plate (30) further comprises a connecting flange (32) connected with the plate buffer groove (31), and the connecting flange (32) is at least partially and fixedly connected with the connecting plate body (22).

3. The vehicle door assembly according to claim 2, wherein the connecting bead (32) is wavy along a width direction of the vehicle door inner panel (12), and a second reinforcing cavity (70) is formed between the connecting bead (32) and the corresponding connecting plate body (22);

The second reinforcing cavity (70) is communicated to the first reinforcing cavity (60), and the second reinforcing cavity (70) is vertically arranged on two sides of the first reinforcing cavity (60).

4. The vehicle door assembly of claim 1, wherein the impact beam assembly further comprises a stopper bracket (40) fixedly connected between the impact beam (20) and the vehicle door inner panel (12);

The limiter bracket (40) comprises a reinforcing plate (41), a first reinforcing edge (42) and a second reinforcing edge (43), wherein the first reinforcing edge (42) and the second reinforcing edge (43) are connected to two opposite sides of the reinforcing plate (41) and extend to the same side of the reinforcing plate (41); wherein,

The first reinforcing edge (42) is fixedly connected with the anti-collision beam (20), and the second reinforcing edge (43) is fixedly connected with the vehicle door inner plate (12).

5. The vehicle door assembly according to claim 4, wherein the reinforcement plate (41) is provided with a structural reinforcement groove (44), and the structural reinforcement groove (44) is formed by recessing a surface of the reinforcement plate (41) to one side.

6. The vehicle door assembly of claim 5, wherein the check bracket (40) further comprises:

Reinforcing flanges (45), wherein the reinforcing flanges (45) are respectively and fixedly connected with the side ends of the reinforcing plate (41) and the first reinforcing edge (42) and the second reinforcing edge (43), and the edges of the reinforcing flanges (45) are bent and extended towards the outer side far away from the reinforcing plate (41).

7. The vehicle door assembly according to claim 1, characterized in that the impact beam assembly further comprises a support bracket (50) fixedly connected between the impact beam (20) and the vehicle door inner panel (12);

The support bracket (50) comprises a concave region (51), a first flanging (52) and a second flanging (53), wherein the first flanging (52) and the second flanging (53) are connected to two opposite sides of an opening of the concave region (51) and respectively bend and extend to the outer side far away from the concave region (51); wherein,

The first flanging (52) is fixedly connected with the anti-collision beam (20), the second flanging (53) is fixedly connected between the anti-collision beam (20) and the vehicle door inner plate (12), the opening of the concave area (51) faces the anti-collision beam (20) and forms a third reinforcing cavity (80) with the anti-collision beam (20), and the bottom of the concave area (51) is fixedly connected with the vehicle door inner plate (12).

8. The vehicle door assembly according to claim 7, wherein a support reinforcing rib (54) is provided on the support bracket (50), and the support reinforcing rib (54) is provided corresponding to the beam cushion groove (21) and extends to the recessed area (51), the first flange (52) and the second flange (53).

9. The vehicle door assembly as defined in any one of claims 1-8, further comprising:

The anti-collision beam assembly is arranged among the door frame (11), the door inner plate (12) and the door outer plate (13);

The door inner panel (12) includes an inner panel body (121), a lap edge (122) perpendicularly surrounding a periphery of the inner panel body (121), and a lap plate (123) connected between the lap edge (122) and the door frame (11) in parallel to the inner panel body (121).

10. The vehicle door assembly according to claim 9, characterized in that the impact beam (20) is fixedly connected to and abuts against the door outer panel (13), and a buffer space is provided between the impact beam (20) and the inner panel body (121).