Rear tailgate frame reinforcement structure and vehicle

Abstract

This invention discloses a rear tailgate frame reinforcement structure, including an upper C-pillar connecting plate, a reinforced rear C-pillar beam, a front C-pillar connecting plate, a charging dock mounting plate, a rear drainage channel body, and a rear tailgate hinge mounting plate. The reinforced rear C-pillar beam is connected to the charging dock mounting plate to form a first cavity. The reinforced rear C-pillar beam is connected to the front C-pillar connecting plate and the rear tailgate hinge mounting plate to form a second cavity. The reinforced rear C-pillar beam is connected to the rear drainage channel body and the upper C-pillar connecting plate. The rear tailgate hinge mounting plate is connected to the front C-pillar connecting plate and the charging dock mounting plate. This invention's rear tailgate frame reinforcement structure features a reasonable force transmission path, a reasonable design layout, a reasonable process, and is easy to manufacture, making it suitable for mass production and minimizing weight and production costs; it also meets NVH, strength fatigue, and other performance requirements. This invention also discloses a wheel.

Description

Technical Field

[0001] This invention belongs to the field of automotive technology. Specifically, this invention relates to a rear tailgate frame reinforcement structure and a vehicle. Background Technology

[0002] The body-in-white (BSK) is a crucial component of a car, and its structural quality directly impacts the vehicle's performance. Overall torsional rigidity of the BSK, a key performance indicator, directly determines the vehicle's performance and quality. Since overall torsional stiffness is influenced by the stiffness of the rear structure, improving the rear torsional stiffness of the BSK enhances the overall torsional stiffness of the vehicle. The tailgate frame, as a critical rear structure, directly affects rear torsional stiffness; therefore, strengthening the tailgate frame improves the stability of the entire rear structure and enhances the overall torsional stiffness of the BSK.

[0003] Currently, most sedan tailgate frames are not circular cavity structures. Therefore, the stability of sedan tailgate frames is relatively poor compared to SUVs, and their resistance to deformation is weaker. During vehicle operation, localized deformation of the body can occur, leading to friction and collisions with surrounding components, resulting in abnormal noises. Furthermore, the torsional stiffness of the tailgate frame also affects the overall torsional stiffness of the vehicle body. Insufficient torsional stiffness leads to low torsional modes, making it easier to couple with external excitation frequencies, causing resonance and thus affecting NVH performance. Additionally, the stiffness of the tailgate frame directly affects the modal characteristics of the hat rack and the tailgate itself; insufficient stiffness resulting in low modal characteristics also negatively impacts NVH performance.

[0004] The aim is to provide an improved rear tailgate frame reinforcement structure, particularly regarding how to enhance the stiffness of the tailgate frame joints and the overall stability of the rear tailgate frame structure. Summary of the Invention

[0005] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention provides a rear tailgate frame reinforcement structure, the purpose of which is to enhance the stiffness of the tailgate frame joint and the overall stability of the rear tailgate frame structure.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a rear tailgate frame reinforcement structure, including an upper connecting plate on the C-pillar, a reinforced rear beam on the C-pillar, a front connecting plate on the C-pillar, a charging seat mounting plate, a rear drainage channel body, and a rear tailgate hinge mounting plate. The reinforced rear beam on the C-pillar is connected to the charging seat mounting plate to form a first cavity. The reinforced rear beam on the C-pillar is connected to the front connecting plate on the C-pillar and the rear tailgate hinge mounting plate to form a second cavity. The reinforced rear beam on the C-pillar is connected to the rear drainage channel body and the upper connecting plate on the C-pillar. The rear tailgate hinge mounting plate is connected to the front connecting plate on the C-pillar and the charging seat mounting plate.

[0007] The aforementioned rear tailgate frame reinforcement structure also includes a rear taillight mounting plate, the rear water channel body is connected to the rear taillight mounting plate, and the rear water channel body is located between the rear taillight mounting plate and the C-pillar reinforcement rear side beam.

[0008] The aforementioned rear tailgate frame reinforcement structure also includes a taillight mounting plate and a first strut reinforcement plate, the first strut reinforcement plate being connected to the taillight mounting plate and the rear water channel body.

[0009] The aforementioned rear tailgate frame reinforcement structure also includes a luggage compartment strut mounting plate, which is connected to the first strut reinforcement plate and the C-pillar connecting plate.

[0010] The luggage support rod mounting plate is connected to the C-pillar connecting plate by bolts.

[0011] The aforementioned rear tailgate frame reinforcement structure also includes a second strut reinforcement plate, which is connected to the luggage compartment strut mounting plate.

[0012] The aforementioned rear tailgate frame reinforcement structure also includes a tailgate strut PLG module mounting bracket, which is connected to the connecting plate on the C-pillar and is configured to install the PLG module.

[0013] The tailgate strut PLG module mounting bracket is connected to the wheel cover, which is located below the connecting plate on the C-pillar.

[0014] The upper connecting plate of the C-pillar is welded to the front connecting plate of the C-pillar and the body of the rear water trough.

[0015] The present invention also provides a vehicle including the aforementioned rear tailgate frame reinforcement structure.

[0016] The rear tailgate frame reinforcement structure of the present invention has the following advantages:

[0017] 1. The force transmission path of the car rear tailgate frame reinforcement structure of the present invention is reasonable, the design layout is reasonable, the process is reasonable, and it is easy to manufacture. It is suitable for mass production and minimizes weight and production costs; it meets the performance requirements such as NVH and strength fatigue.

[0018] 2. The tailgate support rod PLG module mounting bracket and charging base mounting plate included in the rear tailgate frame reinforcement structure of the present invention can meet the function of installing various components, and at the same time play a supporting role, improving the torsional rigidity of the rear of the vehicle body.

[0019] 3. The connecting plate and reinforcing plate included in the rear tailgate frame reinforcement structure of the present invention can enhance the continuity of the structure, effectively improve the local stiffness of the joint, and enhance the stability of the rear tailgate frame structure. This improves rigidity and NVH performance while meeting the requirements of the door frame design.

[0020] 4. The strut mounting plate and strut reinforcing plate included in the rear tailgate frame reinforcement structure of the present invention can improve the rigidity of the rear tailgate mounting point and solve the problem of rigidity and strength of the rear tailgate electric strut mounting point. Attached Figure Description

[0021] Figure 1 This is the overall assembly drawing of the present invention;

[0022] Figure 2 This is the overall assembly drawing of the present invention;

[0023] Figure 3 This is an isometric side view of the present invention;

[0024] Figure 4 This is a top view of the connector structure of the present invention;

[0025] Figure 5 This is a bottom view of the connector structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the connection structure of the present invention;

[0027] The markings in the above figures are as follows: 1. Rear taillight mounting plate, 2. First strut reinforcement plate, 3. Luggage compartment strut mounting plate, 4. C-pillar upper connecting plate, 5. C-pillar front connecting plate, 6. Tailgate strut PLG module mounting bracket, 7. Second strut reinforcement plate, 8. Rear tailgate hinge mounting plate, 9. C-pillar reinforced rear side beam, 10. Rear drainage channel body, 11. Rear taillight upper mounting plate, 12. Charging seat mounting plate, 13. Wheel cover. Detailed Implementation

[0028] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the present invention. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," and similar expressions used in this document are for illustrative purposes only.

[0030] It should be noted that in the following embodiments, the terms "first" and "second" do not represent an absolute distinction in structure and / or function, nor do they represent the order of execution, but are merely for the convenience of description.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] like Figures 1 to 6 As shown, the present invention provides a rear tailgate frame reinforcement structure, including a C-pillar upper connecting plate 4, a C-pillar reinforced rear side beam 9, a C-pillar front connecting plate 5, a charging seat mounting plate 12, a rear drainage channel body 10, and a rear tailgate hinge mounting plate 8. The C-pillar reinforced rear side beam 9 is connected to the charging seat mounting plate 12 to form a first cavity. The C-pillar reinforced rear side beam 9 is connected to the C-pillar front connecting plate 5 and the rear tailgate hinge mounting plate 8 to form a second cavity. The C-pillar reinforced rear side beam 9 is connected to the rear drainage channel body 10 and the C-pillar upper connecting plate 4. The rear tailgate hinge mounting plate 8 is connected to the C-pillar front connecting plate 5 and the charging seat mounting plate 12.

[0033] The aforementioned rear tailgate frame reinforcement structure also includes a rear taillight mounting plate 11, the rear water channel body 10 is connected to the rear taillight mounting plate 11, and the rear water channel body 10 is located between the rear taillight mounting plate 11 and the C-pillar reinforcement rear side beam 9.

[0034] The aforementioned rear tailgate frame reinforcement structure also includes a rear taillight mounting plate 1 and a first strut reinforcement plate 2, the first strut reinforcement plate 2 being connected to the rear taillight mounting plate 1 and the rear water channel body 10.

[0035] The aforementioned rear tailgate frame reinforcement structure also includes a luggage compartment strut mounting plate 3, which is connected to the first strut reinforcement plate 2 and the C-pillar connecting plate 4.

[0036] The luggage support rod mounting plate 3 is connected to the C-pillar connecting plate 4 by bolts.

[0037] The aforementioned rear tailgate frame reinforcement structure also includes a second strut reinforcement plate 7, which is connected to the luggage compartment strut mounting plate 3.

[0038] The aforementioned rear tailgate frame reinforcement structure also includes a tailgate strut PLG module mounting bracket 6, which is connected to the C-pillar connecting plate 4. The tailgate strut PLG module mounting bracket 6 is configured to install the PLG module.

[0039] The tailgate strut PLG module mounting bracket 6 is connected to the wheel cover 13, which is located below the connecting plate 4 on the C-pillar.

[0040] The upper connecting plate 4 of the C-pillar is welded to the front connecting plate 5 of the C-pillar and the rear water channel body 10.

[0041] The present invention also provides a vehicle including the aforementioned rear tailgate frame reinforcement structure. Example

[0042] Firstly, such as Figures 1 to 6 As shown, this embodiment of the invention provides a rear tailgate frame reinforcement structure, including a taillight mounting plate 1, a first strut reinforcement plate 2, a trunk strut mounting plate 3, a C-pillar upper connecting plate 4, a C-pillar reinforced rear side beam 9, a C-pillar front connecting plate 5, a charging seat mounting plate 12, a rear drainage channel body 10, and a rear tailgate hinge mounting plate 8. The C-pillar reinforced rear side beam 9 is connected to the charging seat mounting plate 12 to form a first cavity. The C-pillar reinforced rear side beam 9 is connected to the C-pillar front connecting plate 5 and the rear tailgate hinge mounting plate 8 to form a second cavity. The C-pillar reinforced rear side beam 9 is connected to the rear drainage channel body 10 and the C-pillar upper connecting plate 4. The rear tailgate hinge mounting plate 8 is connected to the C-pillar front connecting plate 5 and the charging seat mounting plate 12. The C-pillar reinforced rear side beam 9 extends to overlap the rear drainage channel body 10 and the C-pillar upper connecting plate 4, and extends laterally to overlap the C-pillar front connecting plate 5 and the rear tailgate hinge mounting plate 8.

[0043] Specifically, the rear tailgate frame reinforcement structure for a passenger car body-in-white provided by this invention can effectively improve the stiffness of the tailgate frame joints and the overall stability of the rear tailgate frame structure, thereby improving the system modal and torsional stiffness of the entire vehicle frame, thus enhancing the overall vehicle's rigidity and NVH performance, while also fulfilling the functional requirements of the rear tailgate frame structure mounting components. This structure satisfies both space requirements and performance requirements with lower weight and cost. Reinforcing the rear tailgate frame can improve the stiffness of the rear tailgate mounting point, solving the problem of insufficient stiffness and strength at the rear tailgate electric strut mounting point.

[0044] In this embodiment of the invention, the stiffness of the tailgate frame joint and the stability of the overall structure of the tailgate frame are improved through a reasonable and simple structural form, thereby improving the system modal and torsional stiffness of the entire vehicle frame, and ensuring that the stiffness and strength of the tailgate electric strut mounting point meet the target.

[0045] In this embodiment of the invention, six components—the C-pillar connecting plate 4, the C-pillar front connecting plate 5, the rear tailgate hinge mounting plate 8, the C-pillar reinforced rear side beam 9, the rear water channel body 10, and the charging seat mounting plate 12—are joined together at the tailgate frame joint to form a cavity, further enhancing the local stiffness of the joint and thus improving the torsional stiffness of the entire body-in-white frame.

[0046] like Figures 1 to 6 As shown, the rear tailgate frame reinforcement structure of the present invention also includes a rear taillight mounting plate 11, a rear water channel body 10 connected to the rear taillight mounting plate 11, and the rear water channel body 10 located between the rear taillight mounting plate 11 and the C-pillar reinforcement rear side beam 9.

[0047] like Figures 1 to 6 As shown, the rear tailgate frame reinforcement structure of this embodiment of the invention also includes a taillight mounting plate 1 and a first strut reinforcement plate 2. The first strut reinforcement plate 2 is connected to the taillight mounting plate 1 and the rear drainage channel body 10. The taillight mounting plate 1 is used to install the taillight assembly and is located at the rear of the vehicle. The first strut reinforcement plate 2 is welded to the taillight mounting plate 1 and the rear drainage channel body 10, and is located below the rear drainage channel body 10. The bottom welding surface of the first strut reinforcement plate 2 is welded on three sides, providing good structural support.

[0048] like Figures 1 to 6 As shown, the rear tailgate frame reinforcement structure of this embodiment of the invention also includes a trunk support rod mounting plate 3, which is connected to the first support rod reinforcement plate 2 and the C-pillar connecting plate 4. The trunk support rod mounting plate 3 is used to install the electric tailgate support rod, which provides support for the vehicle's tailgate. The trunk support rod mounting plate 3 is installed on the first support rod reinforcement plate 2 by welding points and is connected to the C-pillar connecting plate 4 by bolt holes 4a and 6a.

[0049] like Figures 1 to 6 As shown, the rear tailgate frame reinforcement structure of the vehicle body in this embodiment of the invention also includes a second strut reinforcement plate 7, which is connected to the trunk strut mounting plate 3. The trunk strut mounting plate 3 is located between the first strut reinforcement plate 2 and the C-pillar connecting plate 4.

[0050] In this embodiment of the invention, the second strut reinforcing plate 7 is welded to the trunk strut mounting plate 3, which can improve the rigidity of the tailgate mounting point and solve the problem of rigidity and strength of the tailgate electric strut mounting point. The second strut reinforcing plate 7 can effectively improve the local strength and rigidity at the tailgate electric strut mounting point, avoiding local deformation or even damage at the electric strut mounting point.

[0051] like Figures 1 to 6As shown, the rear tailgate frame reinforcement structure of this embodiment of the invention also includes a tailgate strut PLG module mounting bracket 6. The tailgate strut PLG module mounting bracket 6 is connected to the C-pillar connecting plate 4. The tailgate strut PLG module mounting bracket 6 is configured to install the PLG module (Power Lift Gate, electric tailgate control module).

[0052] In this embodiment of the invention, the tailgate strut PLG module mounting bracket 6 supports the C-pillar connecting plate 4 through two bolt holes 6a, and the C-pillar connecting plate 4 is located above the tailgate strut PLG module mounting bracket 6.

[0053] like Figures 1 to 6 As shown, the tailgate strut PLG module mounting bracket 6 is connected to the wheel cover 13, which is located below the connecting plate 4 on the C-pillar. The tailgate strut PLG module mounting bracket 6 connects the connecting plate 4 on the C-pillar and the wheel cover 13 with bolts, making full use of the structural and layout space to provide support and reinforcement as well as to install the components.

[0054] In this embodiment of the invention, the C-pillar connecting plate 4 is welded to the C-pillar front connecting plate 5 and the rear drainage channel body 10. The C-pillar connecting plate 4 connects the C-pillar front connecting plate 5 and the rear drainage channel body 10 through weld points. The entire structure is coherent, the process is reasonable, it can enhance the rear torsional stiffness and the stability of the tailgate frame, improve the system modality, and at the same time meet the tailgate frame design requirements.

[0055] In this embodiment of the invention, the rear tailgate hinge mounting plate 8 is connected to the C-pillar front connecting plate 5 via weld points. The side of the rear tailgate hinge mounting plate 8 supports the charging base mounting plate 12 via weld points. The rear tailgate hinge mounting plate 8 is used to install the hinge assembly on the rear tailgate, realizing the connection between the rear tailgate and the vehicle body. The charging base mounting plate 12 is used to install the charging base. The C-pillar reinforcing rear beam 9, the C-pillar front connecting plate 5, and the C-pillar upper connecting plate 4 are connected to the C-pillar of the vehicle body, and are located above the C-pillar.

[0056] The aforementioned structure of the rear tailgate frame reinforcement of the car body-in-white is structurally continuous, with good tailgate frame stability, improving the overall rigidity, strength, and modal characteristics of the rear of the vehicle body, and ensuring that the rigidity and strength of the rear tailgate electric strut mounting point meet the target, satisfying performance requirements such as NVH and strength fatigue.

[0057] Secondly, embodiments of the present invention also provide a vehicle including a rear tailgate frame reinforcement structure with the above-described structure. The vehicle is a sedan, and this rear tailgate frame reinforcement structure can be referred to... Figures 1 to 6 The details will not be elaborated further here. Since the vehicle of the present invention includes the rear tailgate frame reinforcement structure of the above embodiments, it possesses all the advantages of the aforementioned rear tailgate frame reinforcement structure.

[0058] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A reinforced structure for the rear tailgate frame of a vehicle body, characterized in that: It includes a C-pillar upper connecting plate, a C-pillar reinforced rear side beam, a C-pillar front connecting plate, a charging seat mounting plate, a rear drainage channel body, and a rear tailgate hinge mounting plate. The C-pillar reinforced rear side beam is connected to the charging seat mounting plate to form a first cavity. The C-pillar reinforced rear side beam is connected to the C-pillar front connecting plate and the rear tailgate hinge mounting plate to form a second cavity. The C-pillar reinforced rear side beam is connected to the rear drainage channel body and the C-pillar upper connecting plate. The rear tailgate hinge mounting plate is connected to the C-pillar front connecting plate and the charging seat mounting plate.

2. The vehicle rear tailgate frame reinforcement structure according to claim 1, characterized in that: It also includes a rear taillight mounting plate, the rear water channel body is connected to the rear taillight mounting plate, and the rear water channel body is located between the rear taillight mounting plate and the C-pillar reinforced rear side beam.

3. The vehicle rear tailgate frame reinforcement structure according to claim 2, characterized in that: It also includes a taillight mounting plate and a first strut reinforcement plate, the first strut reinforcement plate being connected to the taillight mounting plate and the rear water channel body.

4. The vehicle rear tailgate frame reinforcement structure according to claim 3, characterized in that: It also includes a luggage support rod mounting plate, which is connected to the first support rod reinforcing plate and the C-pillar connecting plate.

5. The vehicle rear tailgate frame reinforcement structure according to claim 4, characterized in that: The luggage support rod mounting plate is connected to the C-pillar connecting plate by bolts.

6. The vehicle rear tailgate frame reinforcement structure according to claim 4, characterized in that: It also includes a second support rod reinforcing plate, which is connected to the luggage support rod mounting plate.

7. The vehicle rear tailgate frame reinforcement structure according to any one of claims 1 to 6, characterized in that: It also includes a tailgate strut PLG module mounting bracket, which is connected to the connecting plate on the C-pillar, and is configured to install the PLG module.

8. The vehicle rear tailgate frame reinforcement structure according to claim 7, characterized in that: The tailgate strut PLG module mounting bracket is connected to the wheel cover, which is located below the connecting plate on the C-pillar.

9. The vehicle rear tailgate frame reinforcement structure according to any one of claims 1 to 6, characterized in that: The upper connecting plate of the C-pillar is welded to the front connecting plate of the C-pillar and the body of the rear water trough.

10. A vehicle, characterized in that: Includes the vehicle body rear tailgate frame reinforcement structure as described in any one of claims 1 to 9.

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