Back door outer plate supporting structure

Abstract

The utility model provides a back door outer plate supporting structure which comprises a supporting part, the end face of one side of the supporting part is connected with a back door outer plate, the end face of the other side of the supporting part is connected with a connecting plate, and the connecting plate is fixed to a back door inner plate. The supporting part comprises an arc-shaped supporting plate with the arching height ranging from 1 mm to 150 mm, fixing plates are arranged at the two ends of the arc-shaped supporting plate respectively, and the fixing plates are fixed to the back door inner plate. According to the supporting structure, the overall structural stability of the large-plane back door is high, great deformation and deep depression are avoided when slight rubbing or slight collision occurs, meanwhile, the supporting structure can further avoid resonance of a vehicle body structure under certain specific frequencies, noise in a vehicle is reduced, and the comfort level of a driver and passengers is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automotive parts, and specifically belongs to a support structure for the outer panel of the rear door. Background Art

[0002] With the continuous development of the automotive industry, vehicle styling has become increasingly diverse. The traditional license plate structure and taillight structure are set on the rear door of the car, resulting in a fixed structure of the existing rear door of the car. Therefore, a large flat rear door has become the choice of more and more models. The design of the large flat rear door makes the trunk door integrate with the side of the vehicle body when it is in the closed state, reducing the visual abruptness. At the same time, the large flat surface is also easier to form a unified style with other parts of the vehicle body, enhancing the overall aesthetic feeling.

[0003] However, in the large flat rear door of the existing car, due to the removal of the license plate structure and the taillight structure, the connection structure between the inner panel and the outer panel of the rear door is reduced. Therefore, at certain specific frequencies, the body structure is prone to resonance, resulting in an increase in vehicle interior noise and a decrease in ride comfort. At the same time, when the large flat rear door is slightly scratched or slightly impacted, it is prone to large deformation and deep dents, resulting in poor anti-dent performance of the rear door, and reducing the stability and strength of the rear door. Summary of the Utility Model

[0004] In order to solve the problems of poor anti-dent performance of the rear door and increased vehicle interior noise in the large flat rear door of the existing technology due to the removal of the license plate structure and the taillight structure, the utility model provides a support structure for the outer panel of the rear door.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] The utility model provides a support structure for the outer panel of the rear door, including a support part. One end face of the support part is connected to the outer panel of the rear door, and a connecting plate is connected to the other end face of the support part. The connecting plate is fixed on the inner panel of the rear door;

[0007] The support part includes an arc-shaped support plate with an arch height of 1 - 150 mm. Fixing plates are respectively arranged at both ends of the arc-shaped support plate, and the fixing plates are fixed on the inner panel of the rear door.

[0008] Preferably, the included angle between the fixing plate and the tangent along the arc line at the end of the arc-shaped support plate is 90 - 180°.

[0009] Preferably, the thickness of the arc-shaped support plate is 0.6 - 0.65 mm and the width is 60 - 65 mm.

[0010] Preferably, the arc-shaped support plate is a DC04 cold-rolled sheet.

[0011] Preferably, the connecting plate includes a first connecting plate and a second connecting plate. The first connecting plate is fixedly connected to the arc-shaped support plate. One end of the first connecting plate is connected to one end of the second connecting plate, and the other end of the second connecting plate is fixedly connected to the inner panel of the rear door.

[0012] Preferably, the included angle between the first connecting plate and the second connecting plate is 100-135°.

[0013] Preferably, a boss is provided on the outer end face of the arc-shaped support plate, and a glue application groove is provided on the boss. The glue application groove is filled with a glue material for connecting the inner panel of the rear door.

[0014] Preferably, the length of the glue application groove is 30-50 mm and the depth is 1.5-2.0 mm.

[0015] Preferably, the distance between two adjacent ends of two adjacent glue application grooves is 100-150 mm.

[0016] Preferably, a weight-reducing hole is provided on the outer side surface of the arc-shaped support plate between two adjacent bosses.

[0017] Compared with the prior art, the utility model has the following beneficial technical effects:

[0018] A support structure for the outer panel of a rear door proposed by the utility model. In this support structure, an arc-shaped support plate is connected to the inner end face of the outer panel of the rear door, and the inner panel of the rear door is connected to the arc-shaped support plate through a connecting plate. With the arc-shaped support plate with a camber height between 1 and 150 mm as the core of the support part, the overall strength and rigidity of the rear door are significantly enhanced. It can effectively disperse and resist external impact force and pressure, optimize the stress distribution, avoid material damage caused by local stress concentration, and thus extend the service life of the rear door. Both sides of the arc-shaped support plate are tightly connected to the inner panel of the rear door through fixing plates, which simplifies the installation process, improves the assembly efficiency, ensures the firm and reliable connection, and effectively prevents potential safety hazards caused by loose connection. This support structure makes the overall structure of the large-plane rear door highly stable, avoiding large deformation and deep depression when there is a slight scratch or slight impact. At the same time, this support structure can also avoid the resonance of the vehicle body structure at certain specific frequencies, reduce the interior noise, and improve the comfort of the driver and passengers.

[0019] Furthermore, in this support structure, the arc-shaped support plate is a DC04 cold-rolled sheet with a thickness of 0.6-0.65 mm and a width of 60-65 mm, which ensures the stable connection of the support plate, guarantees its sufficient support strength, reduces the overall weight, and improves the economy and fuel efficiency of the vehicle.

[0020] Furthermore, the connecting plate in this support structure includes a first connecting plate and a second connecting plate, which enhances the connection strength and stability between the support part and the inner panel of the rear door, ensures that the supporting force can be transmitted more effectively, thereby improving the overall rigidity and durability of the rear door. The included angle between the first connecting plate and the second connecting plate is 100-135°, which helps to disperse stress and reduce stress concentration, thus prolonging the service life of the support structure and the rear door. At the same time, through the first connecting plate and the second connecting plate, it is possible to ensure a perfect fit between the support structure and the inner panel of the rear door, simplify the installation process, and improve the assembly efficiency.

[0021] Furthermore, a weight-reducing hole is provided on the outer side of the arc-shaped support plate in this support structure between two adjacent bosses. The weight-reducing hole effectively reduces the overall weight of the support plate, which helps to improve fuel economy and vehicle performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a support structure for an outer panel of a rear door proposed by the present utility model;

[0023] Figure 2 is a schematic cross-sectional structural diagram of a support structure for an outer panel of a rear door proposed by the present utility model;

[0024] Figure 3 is a schematic front view connection diagram of a support structure for an outer panel of a rear door and a rear door panel proposed by the present utility model;

[0025] Figure 4 is a schematic bottom view connection diagram of a support structure for an outer panel of a rear door and a rear door panel proposed by the present utility model;

[0026] In the drawings: 1, support part; 10, fixing plate; 11, arc-shaped support plate; 12, glue application groove; 2, connecting plate; 3, inner panel of the rear door; 4, outer panel of the rear door. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0030] In the present utility model, unless otherwise clearly defined and limited, the terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "under the bottom of" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0032] The embodiments of the present utility model will be described in detail below with reference to the drawings.

[0033] See Figures 1 to 4, the present utility model proposes a support structure for the outer panel of the rear door. This support structure is used for rear doors where the distance between the inner panel 3 of the rear door and the outer panel 4 of the rear door is greater than 80 mm. It includes a support portion 1. The support portion 1 includes an arc-shaped support plate 11 with an arch height of 1 - 150 mm. The thickness of the arc-shaped support plate 11 is 0.6 - 0.65 m, and the width of the arc-shaped support plate 11 is 60 - 65 mm. The arc-shaped support plate 11 is made of DC04 cold-rolled steel. At both ends of the arc-shaped support plate 11, fixing plates 10 are symmetrically arranged. The angle between the length direction of the arc-shaped plate 1 and the tangent direction of the end of the arc-shaped support plate 11 along the arc is 90 - 180°. The length of the arc-shaped support plate 11 and its two end fixing plates 10 is greater than 1000 mm. Threaded holes are provided on the end faces of the fixing plates 10 for installing fixing screws. The fixing plates 10 are fixed on the inner panel 3 of the rear door through the fixing screws. The outer end face of the arc-shaped plate support 11 located on the arched side is fixed on the end face of the outer panel 4 of the rear door opposite to the inner panel 3 of the rear door.

[0034] On the inner end face of the arc-shaped support plate 11 located on the arched part, at least two connecting platforms are provided. The width of the two connecting platforms is 70 - 80 mm. One end of a connecting plate 2 is fixedly connected to each connecting platform. The other end of the connecting plate 2 is fixedly connected to the end face of the inner panel 3 of the rear door opposite to the outer panel 4 of the rear door. A support structure is formed between the inner panel 3 of the rear door and the outer panel 4 of the rear door through the connecting plate 2 and the arc-shaped support plate 10 to support the inner panel 3 of the rear door and the outer panel 4 of the rear door. Furthermore, a stable support structure is formed inside the large-plane rear door, improving the overall strength of the large-plane rear door and avoiding extremely large deformation and deep depressions when the large-plane rear door undergoes minor scratches or minor impacts, thus improving the dent resistance of the large-plane rear door.

[0035] The connecting plate 2 includes a first connecting plate welded to the inner end face of the arc-shaped support plate 11. One end of the first connecting plate is connected to one end of a second connecting plate. The second connecting plate is fixed on the inner panel 3 of the rear door through a fixing member. The angle between the first connecting plate and the second connecting plate is 100 - 135°. Support is formed between the arc-shaped support plate 11 and the inner panel 3 of the rear door through the first connecting plate and the second connecting plate in the connecting plate 2, increasing the support stability between the inner panel 3 of the rear door and the outer panel 4 of the rear door.

[0036] See Figure 1 and Figure 2, on the outer side surface of the arc-shaped support plate 11, bosses are equidistantly arranged from the left end head to the right end head at a distance of 43 mm from the outer panel 43 of the rear door. Each boss is provided with an adhesive application groove with a depth of 1.5 - 2.0 mm and a length of 30 - 50 mm. The adhesive application groove is used to fill with adhesive material, and the arched outer end surface of the arc-shaped support plate 11 is connected to the inner end surface of the outer panel 4 of the rear door through the adhesive material. Among them, the distance between adjacent two end heads in adjacent two adhesive application grooves is 100 - 150 mm.

[0037] See Figure 1 , a weight reduction hole 12 is arranged between adjacent two bosses on the outer side surface of the arc-shaped support plate 11. The weight of the arc-shaped support plate 11 is reduced through the weight reduction hole 12, and further the weight of the entire support mechanism is reduced, increasing the stability of the connection of the support mechanism between the inner panel 3 and the outer panel 4 of the rear door.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0039] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of the present invention, and the protection scope of the present invention cannot be limited by this. Any modification made on the basis of the technical solution according to the technical idea proposed by the present invention falls within the protection scope of the claims of the present invention.

Claims

1. A back door outer panel support structure, characterized in that: It comprises a support portion (1), one end surface of the support portion (1) is connected to a back door outer panel (3), the other end surface of the support portion (1) is connected to a connecting plate (2), and the connecting plate (2) is fixed to a back door inner panel (4); The support portion (1) comprises an arc-shaped support plate (11) with an arch height of 1 to 150 mm, and fixing plates (10) are respectively arranged on both end heads of the arc-shaped support plate (11), and the fixing plates (10) are fixed to the rear door inner plate (4).

2. The tailgate outer panel support structure according to claim 1, characterized in that: The included angle between the fixing plate (10) and the tangent line along the arc at the end of the arc-shaped support plate (11) is 90 to 180 degrees.

3. The tailgate outer panel support structure according to claim 1, characterized in that: The arc-shaped support plate (11) has a thickness of 0.6 to 0.65 mm and a width of 60 to 65 mm.

4. The tailgate outer panel support structure according to claim 1, characterized in that: The arc-shaped support plate (11) is a DC04 cold-rolled plate.

5. The tailgate outer panel support structure according to claim 1, characterized in that: The connecting plate (2) comprises a first connecting plate and a second connecting plate, the first connecting plate being fixedly connected to the arc-shaped supporting plate (11), one end of the first connecting plate being connected to one end of the second connecting plate, and the other end of the second connecting plate being fixed to the rear door inner plate (4).

6. The tailgate outer panel support structure according to claim 5, characterized in that: The included angle between the first connecting plate and the second connecting plate is 100° to 135°.

7. The tailgate outer panel support structure according to claim 1, characterized in that: A boss is provided on the outer end surface of the arc-shaped support plate (11), and a glue coating groove is provided on the boss. The glue coating groove is filled with glue for connecting the rear door inner plate (4).

8. The tailgate outer panel support structure according to claim 7, characterized in that: The length of the glue coating groove is 30-50 mm and the depth is 1.5-2.0 mm.

9. The tailgate outer panel support structure according to claim 7, characterized in that: The distance between two adjacent end heads in two adjacent glue coating grooves is 100 to 150 mm.

10. The tailgate outer panel support structure according to claim 7, characterized in that: A weight-reducing hole (12) is provided on the outer side surface of the arc-shaped support plate (11) and between two adjacent bosses.

Images