CN209739183U - automobile threshold and automobile body side impact reinforcing structure - Google Patents

Abstract

The utility model relates to the technical field of automobiles, and discloses an automobile door sill and a vehicle body side impact reinforcement structure including the automobile door sill. The automobile door sill includes an inner panel, a longitudinal reinforcement panel and an outer panel sequentially arranged from the inside to the outside, and the inner panel includes an inner panel. The panel body and the first bent portion extending outward along the upper edge of the inner panel body to the longitudinal reinforcement plate, the outer panel includes the outer panel body and the first bending portion extending inward along the upper edge of the outer panel body to the longitudinal reinforcement panel The second bending part; the car door sill also includes a first transverse reinforcing plate located below the first bending part and the second bending part, and a second transverse reinforcing plate located below the first transverse reinforcing plate, the first Both the transverse reinforcing plate and the second transverse reinforcing plate intersect with the longitudinal reinforcing plate, and the two sides are respectively connected to the inner panel body and the outer panel body. The beneficial effects of the utility model are: the rigidity of the door sill of the automobile can be improved, and the side impact performance of the vehicle body can be greatly improved.

Description

Reinforcing structure for vehicle door sill and side impact of vehicle body

technical field

The utility model relates to the technical field of automobiles, in particular to an automobile door sill and a vehicle body side collision reinforcement structure.

Background technique

When a car is in a side collision, the side impact structure is first deformed, and the specific deformation method varies according to the different side impact structures; the side impact structure mainly includes parts such as the door sill and B-pillar, and the lower part of the B-pillar is the first to be impacted and car thresholds. As a key component of the car's side impact structure, the car door sill plays a very important role in safety and collision avoidance.

At present, the common car threshold is connected up and down by the inner panel and the outer panel respectively, forming a large cavity between the inner panel and the outer panel, the overall mechanical strength is weak, and the collision performance is poor.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, to provide a car threshold with lightness and good rigidity, which can improve the collision performance.

In order to achieve the above object, the first aspect of the utility model provides a door sill for an automobile, which includes an inner panel, a longitudinal reinforcement panel and an outer panel arranged sequentially from the inside to the outside, and the inner panel includes the inner panel body and the The upper edge of the main body extends outwards to the first bent part connected with the longitudinal reinforcement board, the outer board includes the outer board body and extends inward along the upper edge of the outer board body to the longitudinal reinforcement board connected second bends;

The vehicle door sill further includes a first transverse reinforcing plate disposed below the first bending portion and the second bending portion, and a second transverse reinforcing plate disposed below the first transverse reinforcing plate, Both the first transverse reinforcement plate and the second transverse reinforcement plate intersect with the longitudinal reinforcement plate, and both sides of the first transverse reinforcement plate and the second transverse reinforcement plate are respectively connected to the inner plate The main body and the outer plate main body.

As a preferred solution, both the inner panel body and the longitudinal reinforcing panel protrude downward from the second transverse reinforcing panel, and the lower edge of the inner panel body and the lower edge of the longitudinal reinforcing panel are connected There is a connecting plate, and a mounting cavity is defined between the inner panel body, the longitudinal reinforcing plate, the second transverse reinforcing plate and the connecting plate.

As a preferred solution, a battery installation plate is provided in the installation cavity, and the battery installation plate includes a front section of the installation panel and a rear section of the installation panel, and the front section of the installation panel and the rear section of the installation panel are sequentially connected to the connection board.

As a preferred solution, at least part of the longitudinal reinforcing plate protrudes upwards from the first bent portion and the second bent portion to form a first extension portion.

As a preferred solution, at least part of the outer panel body protrudes downward from the second transverse reinforcement panel to form a second extension.

As a preferred solution, at least part of the first transverse reinforcing plate protrudes inwardly from the inner panel body to form a third extension.

As a preferred solution, the inner panel body is arranged vertically, and the longitudinal reinforcement board and the outer panel body are arranged obliquely from top to bottom in a direction gradually away from the inner panel.

As a preferred solution, the inner panel, the longitudinal reinforcing panel, the outer panel, the first transverse reinforcing panel and the second transverse reinforcing panel are all made of aluminum alloy.

For the same purpose, the second aspect of the utility model also proposes a vehicle body side impact reinforcement structure, which includes a B-pillar inner panel and the automobile door sill as described in the first aspect, the lower end of the B-pillar inner panel and the second The upper surface of a bent portion and the inner surface of the inner panel body are connected by hot-melt self-tapping threads.

As a preferred solution, the B-pillar inner panel is made of steel.

Compared with the prior art, the utility model has the beneficial effects of:

The automobile door sill structure of the embodiment of the utility model includes an inner panel and an outer panel, and a first transverse reinforcing plate, a second transverse reinforcing plate and a longitudinal reinforcing plate are arranged alternately between the inner panel and the outer panel, which are used to strengthen the The overall strength of the door sill; and there are 4 cavities in the door sill of the car, which can improve the rigidity of the door sill of the car, ensure that the side impact force is smoothly transmitted to other parts of the body connected to it, and can greatly improve the side impact performance of the car body.

Description of drawings

Fig. 1 is a schematic structural view of a vehicle threshold in an embodiment of the present invention;

Fig. 2 is a structural schematic diagram of the threshold of the car in Fig. 1 at another perspective;

Fig. 3 is a structural schematic view of the threshold of the car in Fig. 1 at another perspective;

Fig. 4 is A-A sectional view of Fig. 3;

Fig. 5 is a partially enlarged schematic diagram of Fig. 3;

Fig. 6 is a schematic diagram of the front structure of a car door sill connected to the body structure in the embodiment of the utility model;

Fig. 7 is a schematic diagram of the rear structure of a car door sill connected to the body structure in the embodiment of the present invention;

Fig. 8 is a schematic diagram of the rear structure of Fig. 7;

Fig. 9 is a schematic structural view of a battery mounting plate for a car door sill in an embodiment of the utility model.

In the figure, 10, automobile door sill; 1, inner panel; 11, inner panel body; 12, first bending part; 2, longitudinal reinforcement plate; 21, first extension part; 3, outer panel; 31, outer panel body 311, the second extension part; 32, the second bending part; 4, the first transverse reinforcement plate; 41, the third extension part; 5, the second transverse reinforcement plate; 6, the connection plate; 7, the battery installation plate; 71. The front section of the mounting plate; 72. The rear section of the mounting plate; 8. Riveting nuts; 20. The inner panel of the B-pillar; 30. The rear longitudinal beam of the engine room; 40. The rear floor longitudinal beam.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "first", "second", etc. are used to describe various information, but these information should not be limited to these terms, and these terms are only used to refer to the same type of information separate from each other. For example, "first" information may also be referred to as "second" information without departing from the scope of the present invention, and similarly, "second" information may also be referred to as "first" information.

In addition, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "front", "rear", etc. indicate The orientation or positional relationship is based on the orientation or positional relationship when the vehicle door sill is assembled on the vehicle body.

As shown in Figures 1 to 9, the first aspect of the preferred embodiment of the present invention proposes a car door sill 10, which includes an inner panel 1, a longitudinal reinforcement panel 2 and an outer panel 3 arranged in sequence from the inside to the outside. The panel 1 includes an inner panel body 11 and a first bent portion 12 extending outward along the upper edge of the inner panel body 11 to connect with the longitudinal reinforcement panel 2 , and the outer panel 3 includes an outer panel body 31 and a The upper edge of the outer panel body 31 extends inward to the second bent portion 32 connected to the longitudinal reinforcement panel 2 ;

The car door sill 10 also includes a first transverse reinforcing plate 4 disposed below the first bending portion 12 and the second bending portion 32 , and a second transverse reinforcing plate 4 disposed below the first transverse reinforcing plate 4 . Two transverse reinforcing plates 5, the first transverse reinforcing plate 4 and the second transverse reinforcing plate 5 pass through the longitudinal reinforcing plate 2, and the first transverse reinforcing plate 4 and the second transverse reinforcing plate 5 The two sides are respectively connected to the inner panel body 11 and the outer panel body 31 ; viewed along the cross-section of the vehicle door sill 10 , four cavities are defined in the vehicle door sill 10 .

Based on the above-mentioned technical solution, this embodiment provides a door sill 10 for an automobile, by interlacing the longitudinal reinforcing plate 2, the first transverse reinforcing plate 4 and the second transverse reinforcing plate 5 between the inner panel 1 and the outer panel 3, it can Improve the overall strength and rigidity of the vehicle door sill 10 to prevent the car door sill 10 from being damaged due to insufficient local rigidity, thereby affecting the force transmission performance, so the side impact performance of the car door sill 10 can be greatly improved.

In this embodiment, in order to further improve the rigidity of the vehicle door sill 10, the inner panel body 11 and the longitudinal reinforcing panel 2 protrude downward from the second transverse reinforcing panel 5, and the inner panel body 11 A connecting plate 6 is connected between the lower edge and the lower edge of the longitudinal reinforcing plate 2, between the inner panel body 11, the longitudinal reinforcing plate 2, the second transverse reinforcing plate 5 and the connecting plate 6 An installation cavity is defined between them; in addition to the above-mentioned four cavities, the vehicle door sill 10 also has an installation cavity, which can further improve the side impact performance.

Specifically, in this embodiment, in order to facilitate the installation of the threshold battery, a battery mounting plate 7 is provided in the installation cavity, and the threshold battery is connected to the lower surface of the connecting plate 6 through the battery mounting plate 7; Processing technology and ease of assembly, the battery mounting plate 7 is divided into two sections: the front section 71 of the mounting plate and the rear section 72 of the mounting plate, the front section 71 of the mounting plate and the rear section 72 of the mounting plate are connected to the connecting plate in sequence from front to back On board 6, details can be referred to as shown in accompanying drawing 9. Of course, the battery mounting plate 7 can also be divided into multiple sections.

Exemplarily, please refer to the accompanying drawing 4, the battery mounting plate 7 is riveted with the connecting plate 6 through the rivet nut 8 and the rivet (not shown in the drawing), compared with the threaded connection structure of the general model, the cost cheaper.

Preferably, in this embodiment, in order to facilitate installation with other parts of the vehicle body, at least part of the longitudinal reinforcing plate 2 protrudes upwards from the first bending portion 12 and the second bending portion 32, so as to The first extension part 21 is formed; when the vehicle door sill 10 is assembled on the vehicle body, the first extension part 21 cooperates with the side panel to form a bayonet for clamping the waterproof rubber strip.

Similarly, in order to facilitate connection with other parts of the vehicle body, at least part of the outer panel body 31 protrudes downwards from the second transverse reinforcement panel 5 to form a second extension 311, and the second extension 311 is used to communicate with Side panel connection. Specifically, referring to FIG. 1 , in this embodiment, two second extension portions 311 are arranged at intervals.

Preferably, in this embodiment, at least a part of the first transverse reinforcing plate 4 protrudes inwardly from the inner panel body 11 to form a third extension 41, and the third extension 41 is used to communicate with the floor of the vehicle body. Fit lap.

Please continue to refer to FIG. 4 , preferably, the inner panel body 11 is vertically arranged, and the longitudinal reinforcement panel 2 and the outer panel body 31 are gradually away from the inner panel 1 from top to bottom. The direction is tilted; on the premise of improving the overall rigidity, the vehicle door sill 10 can be installed in cooperation with other parts of the vehicle body around it.

Exemplarily, in this embodiment, the position where the first bent portion 12 is connected to the longitudinal reinforcing plate 2 and the position where the second bent portion 32 is connected to the longitudinal reinforcing plate 2 are kept substantially flush; further, The connecting position of the first bent portion 12 and the longitudinal reinforcing plate 2 is slightly higher than the connecting position of the second bent portion 11 and the longitudinal reinforcing plate 2 .

In this embodiment, the vehicle door sill 10 is an aluminum alloy structure, that is, the inner panel 1, the longitudinal reinforcement panel 2, the outer panel 3, the first transverse reinforcement panel 4 and the second transverse reinforcement panel 5 All are made of aluminum alloy; compared with the traditional steel structure, the mass is reduced by about 30%, which is conducive to the lightweight of the body.

Also referring to Figures 1-8, the second aspect of the embodiment of the present invention also proposes a vehicle body side impact reinforcement structure, which includes the vehicle door sill 10 and the B-pillar inner panel 20 as described in the first aspect.

Since the body side impact reinforcement structure in this embodiment includes the vehicle door sill 10 as described in the first aspect, it has all the beneficial effects of the vehicle door sill 10 , which will not be stated here.

As a preferred solution for the above-mentioned side impact reinforcement structure of the vehicle body, the lower end of the B-pillar inner panel 20, the upper surface of the first bent portion 12 and the inner surface of the inner panel body 11 are self-tapping through thermal melting. (FDS, Flow DrillScrew) connection, please refer to Figure 5 for details; this connection process is especially suitable for body assembly where the upper body and the lower body are made of different materials, which reduces the difficulty of the process and is conducive to mass production.

More specifically, the B-pillar inner panel 20 is made of steel, and correspondingly, the door sill 10 is made of aluminum alloy; this structure is suitable for models whose upper body is made of steel and the lower body is made of aluminum. Exemplarily, the B-pillar inner panel 20 is connected to the upper vehicle body by spot welding.

Accompanying drawing 6 shows the front structure when the car door sill 10 is connected to the body structure, the front end of the car door sill 10 is connected with the rear longitudinal beam 30 of the engine room by thread and FDS.

7 and 8 show the rear structure when the car door sill 10 is connected to the vehicle body structure. The rear end of the car door sill 10 and the rear floor longitudinal beam 40 are also connected by threads and FDS.

In addition, it should be noted that the assembly schematic diagram of the middle part of the door sill 10 and the body mechanism is not shown in the accompanying drawings; for example, the inner side of the middle part of the door sill 10 and the front floor are self-piercing riveting (FPR, Self- PiercingRiveting) connected.

To sum up, the embodiment of the present utility model provides a car door sill and a vehicle body side collision reinforcement structure including the car door sill. The car door sill includes: an inner panel, an outer panel, longitudinal reinforcement plates interlaced between the inner panel and the outer panel, The first transverse reinforcing plate and the second transverse reinforcing plate define four cavities in the door sill of the car, which can improve the strength and rigidity of the door sill of the car and greatly improve the side impact performance of the vehicle body.

The above is only the preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and replacements can also be made. And replacement should also be regarded as the protection scope of the present utility model.

Claims (10)

1. An automobile threshold is characterized by comprising an inner plate, a longitudinal reinforcing plate and an outer plate which are sequentially arranged from inside to outside, wherein the inner plate comprises an inner plate body and a first bending part which extends outwards along the upper edge of the inner plate body and is connected with the longitudinal reinforcing plate, and the outer plate comprises an outer plate body and a second bending part which extends inwards along the upper edge of the outer plate body and is connected with the longitudinal reinforcing plate;

The automobile threshold further comprises a first transverse reinforcing plate and a second transverse reinforcing plate, the first transverse reinforcing plate is arranged below the first bending portion and the second bending portion, the second transverse reinforcing plate is arranged below the first transverse reinforcing plate, the first transverse reinforcing plate and the second transverse reinforcing plate are intersected with the longitudinal reinforcing plate, and two side edges of the first transverse reinforcing plate and the second transverse reinforcing plate are respectively connected with the inner plate body and the outer plate body.

2. An automobile rocker as set forth in claim 1, wherein said inner panel body and said longitudinal reinforcement each project downwardly from said second lateral reinforcement, and a connecting plate is connected between a lower edge of said inner panel body and a lower edge of said longitudinal reinforcement, and mounting cavities are defined between said inner panel body, said longitudinal reinforcement, said second lateral reinforcement and said connecting plate.

3. An automobile threshold as claimed in claim 2 wherein a battery mounting plate is provided within the mounting cavity, the battery mounting plate including a mounting plate front section and a mounting plate rear section, the mounting plate front section and the mounting plate rear section being connected to the connecting plate in sequence from front to rear.

4. An automobile door sill according to claim 1 wherein at least a portion of said longitudinal reinforcement panel projects upwardly from said first and second bent portions to form a first extension.

5. An automobile rocker as set forth in claim 1, wherein at least a portion of said outer panel body projects downwardly from said second lateral reinforcement panel to form a second extension.

6. An automobile door sill according to claim 1 wherein at least a portion of said first lateral reinforcement panel projects inwardly of said inner panel body to form a third outer extension.

7. An automobile doorsill according to claim 1, wherein said inner panel body is disposed vertically, and said longitudinal reinforcement panel and said outer panel body are disposed to be inclined from top to bottom in a direction gradually away from said inner panel.

8. An automobile rocker according to any one of claims 1 to 7, characterised in that the inner panel, the longitudinal stiffener, the outer panel, the first transverse stiffener and the second transverse stiffener are made of aluminium alloy.

9. A vehicle body side impact reinforcing structure, which is characterized by comprising a B-pillar inner plate and the vehicle threshold as claimed in any one of claims 1 to 7, wherein the lower end of the B-pillar inner plate is connected with the upper surface of the first bent part and the inner side surface of the inner plate body through hot melting and self-tapping.

10. The side impact reinforcement structure for a vehicle body according to claim 9, wherein the B-pillar inner panel is made of a steel material.