Back door structure and vehicle

Abstract

A vehicle tailgate structure comprises an inner tailgate panel, an outer tailgate panel, a taillight housing, and a reinforcement block. The reinforcement block is a hollow structure, located between the inner and outer tailgate panels and mounted on the taillight housing, and is configured to fill the gap between the taillight housing and the inner tailgate panel. The hollow reinforcement block is positioned within the gap between the taillight housing and the inner tailgate panel to enhance the local strength of the taillight housing and the outer tailgate panel connected thereto. Furthermore, the reinforcement block connects the inner tailgate panel and the taillight housing, absorbing the impact of the tailgate closing.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a tailgate structure of a vehicle and a vehicle having the structure. Background Art

[0002] The tailgate system is a very important component of the entire vehicle. It is generally composed of a tailgate sheet metal assembly, a tailgate lock system, a tailgate interior trim assembly, a rear windshield assembly, and a tailgate exterior trim. The tailgate system needs to have sufficient structural strength to meet durability requirements. Because the taillight position of the tailgate inner panel sheet metal is the position with the deepest stamping and drawing depth of the inner panel, it is a high-incidence area for durable cracking. In order to ensure the durability of the tailgate opening and closing, the existing technology will set multiple limit blocks near the corresponding area, so that when the tailgate is closed, the impact force caused by the closing of the tailgate can be cushioned by contact between the multiple limit blocks. However, the existing limit blocks have high requirements for manufacturing precision and a complex installation structure, which will cause problems such as poor appearance quality and abnormal noise when opening and closing the tailgate. Summary of the Invention

[0003] An object of the present invention is to provide a back door structure that can solve at least one problem existing in the prior art.

[0004] A further object of the present invention is to lightweight the tailgate structure.

[0005] Another further object of the present invention is to improve the installation convenience of the tailgate structure.

[0006] A further object of the present invention is to provide a vehicle having a novel tailgate structure.

[0007] In particular, the present invention provides a vehicle back door structure, comprising: a back door inner panel, a back door outer panel, a tail light cover and a reinforcement block; wherein

[0008] The reinforcement block is a hollow structure, which is located between the back door inner panel and the back door outer panel and is installed on the tail light cover, and is configured to fill the gap between the tail light cover and the back door inner panel.

[0009] Furthermore, the reinforcement comprises:

[0010] an outer member having a second panel proximate the tailgate inner panel and a first panel proximate the taillight housing; and

[0011] The inner member is installed inside the outer member and supports at least a portion of the first panel and at least a portion of the second panel to be away from each other.

[0012] Furthermore, the first panel and the second panel have connecting edges close to each other, the two form a seal at the connecting edges, and form an open edge on the other side opposite to the connecting edge, and the open edges of the two are far away from each other; and

[0013] The inner part has a narrow end and a wide end wider than the narrow end, the narrow end is inserted into the outer part and is located near the seal, and the wide end is located between the two open edges.

[0014] Furthermore, the first panel includes a mounting section and a supporting section;

[0015] The installation section is sandwiched between the taillight housing and the back door inner panel. A hook is passed through the installation section, and the reinforcement block is installed on the taillight housing through the hook.

[0016] The supporting section and the mounting section are connected end to end to form an integral component, and the supporting section is smoothly curved and extended from the mounting section toward the back door outer panel to be positioned at a supporting position below the taillight cover.

[0017] Furthermore, the hook is formed on the inner member, and a supporting step is also formed on the inner member;

[0018] The mounting section of the first panel is provided with a through hole to allow the hook to pass through the through hole and be engaged with the taillight cover;

[0019] A notch is formed in the supporting section of the first panel, and the supporting step is exposed from the notch and abuts against the taillight cover.

[0020] Furthermore, the reinforcement member further includes a pad, which is sleeved on the hook passing through the through hole to be cushioned between the taillight cover and the first panel.

[0021] Furthermore, the inner part includes:

[0022] A first inner plate is disposed against the inner side of the first panel;

[0023] A second inner plate is disposed against the inner side of the second panel;

[0024] a top plate connected to the first inner plate and the second inner plate near a free end of the mounting section;

[0025] a bottom panel connecting the first inner panel and the second inner panel proximate a free end of the buttressing section; and

[0026] At least one supporting rib is configured to extend from the first inner plate toward the second inner plate or the bottom plate.

[0027] Furthermore, the at least one supporting rib includes a first supporting rib located between the mounting section and the second inner plate, a third supporting rib located between the supporting section and the bottom plate, and a second supporting rib located between the first supporting rib and the third supporting rib, wherein

[0028] One end of the second supporting rib is connected to the first inner panel near the transition area between the installation section and the supporting section, and the other end thereof is connected to the second inner panel.

[0029] Furthermore, one end of the third supporting rib extends to the inside of the supporting step of the inner component.

[0030] Furthermore, a buffer layer is provided on the supporting step.

[0031] Furthermore, the present invention provides a vehicle comprising any of the above-mentioned back door structures, wherein

[0032] A taillight cover is respectively provided at the left and right ends of the back door of the vehicle, and a reinforcement block is provided on each taillight cover.

[0033] The back door structure of the present invention is provided with an internal hollow reinforcement block in the gap between the taillight cover and the back door inner panel, which can enhance the local strength of the taillight cover and the back door outer panel connected thereto, and the back door inner panel and the back door taillight cover are connected by the reinforcement block to absorb the impact force when the back door is closed.

[0034] Furthermore, the structure of the reinforcement block of the tailgate structure of the present invention and the installation structure between the reinforcement block and the taillight cover are both realized by a hook, so that the structure of the reinforcement block is simplified, and no additional connecting parts are required, thereby improving the installation convenience of the tailgate structure and reducing the requirements for manufacturing precision.

[0035] Furthermore, the reinforcement block of the tailgate structure of the present invention can contact and abut the taillight housing via two partial surfaces. One is a backing plate, and the other is a surface that supports the step. This allows the reinforcement block to support the taillight housing from both sides, dissipating the impact force when the tailgate is closed. These two partial surfaces ensure surface contact between the reinforcement block and the taillight housing, while also avoiding the phenomenon of point or line contact, which can occur when the contact surface is too large and cannot be fully abutted.

[0036] Furthermore, the support ribs of the reinforcement block of the present invention are arranged roughly radially in the hollow structure of its inner component, so that the support ribs and the bottom plate and the top plate can more evenly disperse the impact force generated by closing the door, thereby ensuring that the reinforcement block set as a hollow structure has sufficient supporting strength, thereby ensuring the lighter weight of the reinforcement block.

[0037] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0039] Figure 1is a schematic exploded view of a back door structure according to one embodiment of the present invention;

[0040] Figure 2 is a schematic assembly diagram of a taillight cover and a reinforcement block according to one embodiment of the present invention;

[0041] Figures 3 to 5 1 is a schematic structural diagram of a reinforcement block according to an embodiment of the present invention viewed from different angles;

[0042] Figure 6 and 7 is a schematic exploded view of a reinforcement block according to one embodiment of the present invention viewed from different angles;

[0043] Figure 8 is an end view of a reinforcement block according to one embodiment of the present invention;

[0044] Figure 9 yes Figure 8 An enlarged view of point A of the reinforcement block is shown, showing the hook and omitting the backing plate;

[0045] Figure 10 It is along Figure 8 A schematic cross-sectional view taken along the cutting line BB in FIG. DETAILED DESCRIPTION

[0046] Figure 1 is a schematic exploded view of a back door structure according to one embodiment of the present invention, Figure 2 FIG. 1 is a schematic assembly diagram of a taillight cover 20 and a reinforcement block 10 according to an embodiment of the present invention.

[0047] join Figure 1 and Figure 2 The vehicle tailgate structure generally includes a tailgate inner panel 30, a tailgate outer panel 40, a taillight housing 20, and a reinforcement block 10. Specifically, the reinforcement block 10 is a hollow structure, which is located between the tailgate inner panel 30 and the tailgate outer panel 40 and is installed on the taillight housing 20, and is configured to fill the gap between the taillight housing 20 and the tailgate inner panel 30.

[0048] That is, the present invention sets an internal hollow reinforcement block 10 in the gap between the taillight cover 20 and the tailgate inner panel 30, which can enhance the local strength of the taillight cover 20 and the tailgate outer panel 40 connected thereto, and connects the tailgate inner panel 30 and the tailgate taillight cover 20 through the reinforcement block 10 to absorb the impact force of closing the tailgate.

[0049] Figures 3 to 5Schematic diagrams of a reinforcement block 10 according to an embodiment of the present invention, viewed from different angles, are provided. In one embodiment, the reinforcement member comprises an outer member 100 and an inner member 200. The outer member 100 has a second panel 120 positioned adjacent to the tailgate inner panel 30, and a first panel 110 positioned adjacent to the taillight housing 20. The inner member 200 is mounted within the outer member 100 and supports at least a portion of the first panel 110 and at least a portion of the second panel 120 away from each other.

[0050] Specifically, the outer surface of the outer member 100 can be configured to mate with the surfaces of the tailgate inner panel 30 and the taillight housing 20. The first panel 110 can have the same or substantially the same shape as the corresponding surface area of ​​the taillight housing 20, and the second panel 120 can have the same or substantially the same shape as the corresponding surface area of ​​the tailgate inner panel 30. The inner member 200 is inserted and installed within the outer member 100 to provide support. Thus, the outer member 100 defines the shape of the reinforcement block 10, facilitating insertion and installation in the gap between the tailgate inner panel 30 and the taillight housing 20, while the inner member 200 provides cushioning and support.

[0051] In some embodiments, the outer component 100 and the inner component 200 may also be made of different materials to better achieve their respective functions.

[0052] Figure 6 and 7 1 is a schematic exploded view of a reinforcement block 10 according to an embodiment of the present invention viewed from different angles. Figure 8 is an end view of a reinforcement block 10 according to one embodiment of the present invention, Figure 10 It is along Figure 8 Schematic cross-sectional view taken along section line BB in FIG. In some embodiments, the first panel 110 and the second panel 120 have adjacent connecting edges 111, forming a seal at the connecting edge 111. They also form an open edge 112 on the opposite side of the connecting edge 111, with the open edges 112 of the two panels spaced apart from each other. The inner member 200 has a narrow end 231 and a wide end 232 that is wider than the narrow end 231. The narrow end 231 is inserted into the outer member 100 and positioned near the seal, while the wide end 232 is positioned between the two open edges 112.

[0053] That is, see Figure 10 The reinforcement block 10 can form a partial cross-section that is roughly triangular, thereby enhancing the stability and pressure resistance of the overall structure, and the outer component 100 with one end open and the other end connected can facilitate the positioning, insertion and installation of the inner component 200.

[0054] Figure 9 yes Figure 8 The enlarged view of the reinforcement block 10 at point A is shown, in which the hook 201 is shown and the pad 333 is omitted. Figures 6 to 10 In some embodiments, the first panel 110 includes a mounting section 121 and a supporting section 122. The mounting section 121 is sandwiched between the taillight housing 20 and the back door inner panel 30, and a hook 201 extends through the mounting section 121. The reinforcement block 10 can be mounted to the taillight housing 20 via the hook 201.

[0055] Specifically, the reinforcement block 10 of the present invention can be installed in a welding workshop. It is secured to the taillight housing by hooks 201 on the reinforcement block 10 and affixed to the taillight housing using a heat-expandable adhesive (e.g., 3M adhesive). After high-temperature baking during painting, the expandable structural adhesive expands and hardens. The reinforcement block 10 fills the gap between the taillight housing and the taillight inner panel 30, enhancing local rigidity. It does not require integration with other components, reducing the precision requirements of the manufacturing process.

[0056] Furthermore, the supporting section 122 and the mounting section 121 can be connected end to end to form an integral component, and the supporting section 122 smoothly curves and extends from the mounting section 121 toward the tailgate outer panel 40 to be positioned below the taillight housing 20. As a result, the lower portion of the reinforcement block 10 can be substantially located at the junction of the tailgate outer panel 40, the tailgate inner panel 30, and the taillight housing 20, providing better cushioning and support.

[0057] In some embodiments, a hook 201 is formed on the inner member 200, and the inner member 200 is mounted and fixed to the outer member 100 via the hook 201. Furthermore, a through hole 123 is formed in the mounting section 121 of the first panel 110 to allow the hook 201 to pass through the through hole 123 and engage with the taillight housing 20, thereby allowing the reinforcement block 10 to be mounted to the taillight housing 20 via the hook 201. The structure of the reinforcement block 10 itself and the mounting structure between it and the taillight housing 20 are both implemented by a single hook 201, simplifying the structure of the reinforcement block 10 and eliminating the need for additional connectors.

[0058] Furthermore, the reinforcement member includes a backing plate 333, which is sleeved over the hook 201 extending from the through hole 123 to provide cushioning between the taillight housing 20 and the first panel 110. A supporting step 202 is also formed on the inner member 200. The supporting section 122 of the first panel 110 is formed with a notch 124, through which the supporting step 202 is exposed and abuts against the taillight housing 20.

[0059] In other words, the reinforcement block 10 can contact and abut the taillight housing 20 via two partial surfaces: one is the pad 333, and the other is the surface of the supporting step 202. This allows the reinforcement block 10 to support the taillight housing 20 from both sides and distribute the impact force when the tailgate is closed. These two partial surfaces ensure surface contact between the reinforcement block 10 and the taillight housing 20, while also avoiding the phenomenon of incomplete contact, which can occur due to an excessively large contact surface, resulting in actual point or line contact.

[0060] In some embodiments, the inner member 200 may specifically include a first inner panel 241, a second inner panel 242, a top panel 240, a bottom panel 243, and support ribs. The first inner panel 241 may be positioned against the inner side of the first panel 110. The second inner panel 242 may be positioned against the inner side of the second panel 120. The free end of the top panel 240 near the mounting section 121 connects the first inner panel 241 and the second inner panel 242. The free end of the bottom panel 243 near the supporting section 122 connects the first inner panel 241 and the second inner panel 242. At least one support rib may be configured to extend from the first inner panel 241 toward the second inner panel 242 or the bottom panel 243.

[0061] That is, the inner component 200 is formed into an outer contour by the top plate 240 , the bottom plate 243 , the first inner plate 241 and the second inner plate 242 , and the top plate 240 , the bottom plate 243 and the supporting ribs provide reinforcement and support effects.

[0062] Furthermore, the at least one support rib includes a first support rib 251 located between the mounting section 121 and the second inner plate 242, a third support rib 253 located between the supporting section 122 and the bottom plate 243, and a second support rib 252 located between the first support rib 251 and the third support rib 253. Specifically, one end of the second support rib 252 is connected to the first inner plate 241 near the transition area between the mounting section 121 and the supporting section 122, and the other end is connected to the second inner plate 242.

[0063] That is, the three support ribs are arranged roughly radially in the hollow structure of the inner part 200. The three support ribs and the bottom plate 243 and the top plate 240 can thus more evenly disperse the impact force generated by closing the door, thereby ensuring that the reinforcement block 10 set as a hollow structure has sufficient supporting strength, thereby ensuring the lighter weight of the reinforcement block 10.

[0064] In some embodiments, one end of the third supporting rib 253 extends to the inside of the supporting step 202 of the inner member 200. In other words, the third supporting rib 253 is directly supported in the supporting step 202, thereby providing better support and reinforcement for the supporting step 202 in contact with the taillight cover 20.

[0065] In some embodiments, a buffer layer 222 is provided on the support step 202. The buffer layer 222 can be made of the same or different material as the support step 202 and can be formed according to the local plate shape of the corresponding area of ​​the taillight cover 20, thereby better fitting the taillight cover 20.

[0066] One embodiment of the present invention further provides a vehicle comprising the tailgate structure of any of the aforementioned embodiments. Specifically, a taillight housing 20 is provided at each end of the vehicle's tailgate, and each taillight housing 20 is provided with a reinforcement block 10. The two reinforcement blocks 10 are mirror-symmetrically positioned on the two taillight housings 20 to evenly and symmetrically cushion the vehicle's tailgate and distribute the impact of the door closing.

[0067] At this point, those skilled in the art will recognize that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. A vehicle tailgate structure, comprising: Back door inner panel, back door outer panel, tail light housing and reinforcement block; in The reinforcement block is a hollow structure, which is located between the back door inner panel and the back door outer panel and installed at the tail light cover, and is configured to fill the gap between the tail light cover and the back door inner panel; Wherein, the reinforcement block comprises: an outer member having a second panel proximate the tailgate inner panel and a first panel proximate the taillight housing; and The inner member is installed inside the outer member and supports at least a portion of the first panel and at least a portion of the second panel to be away from each other.

2. The vehicle tailgate structure according to claim 1, wherein: The first panel and the second panel have connecting edges close to each other, the two panels form a seal at the connecting edges, and form an open edge on the other side opposite to the connecting edge, and the open edges of the two panels are far away from each other; and The inner part has a narrow end and a wide end wider than the narrow end, wherein the narrow end is inserted into the outer part and located near the seal, and the wide end is located between the two open edges.

3. The vehicle tailgate structure according to claim 2, wherein: The first panel includes a mounting section and a supporting section; The mounting section is sandwiched between the taillight housing and the back door inner panel, and a hook is passed through the mounting section, and the reinforcement block is mounted on the taillight housing through the hook; The supporting section and the mounting section are connected end to end to form an integral component, and the supporting section is smoothly curved and extends from the mounting section toward the back door outer panel to be positioned at a supporting position below the taillight cover.

4. The vehicle tailgate structure according to claim 3, wherein: The hook is formed on the inner component, and a supporting step is also formed on the inner component; The mounting section of the first panel is provided with a through hole to allow the hook to pass through the through hole and be engaged with the taillight cover; A notch is formed in the supporting section of the first panel, and the supporting step is exposed from the notch and abuts against the taillight cover.

5. The vehicle tailgate structure according to claim 3, wherein: The reinforcement block further includes a pad, which is sleeved on the hook to serve as a pad between the taillight cover and the first panel.

6. The vehicle tailgate structure according to claim 3, wherein: The inner part comprises: a first inner panel, disposed against the inner side of the first panel; a second inner panel, disposed against the inner side of the second panel; a top plate, adjacent to a free end of the mounting section, connecting the first inner plate and the second inner plate; a bottom plate connecting the first inner plate and the second inner plate near a free end of the buttressing section; and At least one supporting rib is configured to extend from the first inner plate toward the second inner plate or the bottom plate.

7. The vehicle tailgate structure according to claim 6, wherein: The at least one supporting rib includes a first supporting rib located between the mounting section and the second inner plate, a third supporting rib located between the supporting section and the bottom plate, and a second supporting rib located between the first supporting rib and the third supporting rib, wherein One end of the second supporting rib is connected to the first inner panel near the transition area between the installation section and the supporting section, and the other end thereof is connected to the second inner panel.

8. The vehicle tailgate structure according to claim 7, wherein: One end of the third supporting rib extends to the interior of the supporting step of the inner component.

9. The vehicle tailgate structure according to claim 4 or 8, wherein: A buffer layer is laid on the supporting step.

10. A vehicle comprising the tailgate structure according to any one of claims 1 to 9, wherein The left and right ends of the back door of the vehicle are respectively provided with a tail light cover, and each tail light cover is provided with a reinforcement block.

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