Tail door inner plate, tail door structure and vehicle

Abstract

The utility model relates to a tail door inner plate, a tail door structure and a vehicle, the tail door inner plate comprises an inner plate body and a reinforcing structure, the reinforcing structure can be arranged on the inner plate body, the reinforcing structure can comprise a boss structure, and the boss structure comprises at least one first boss with a trapezoidal section. Through the arrangement of the reinforcing structure, the connecting strength and other performance of the tail door structure formed after the inner plate body and the tail door outer plate are connected can be improved; in addition, the connection area between the inner plate body and the tail door outer plate is increased through the arrangement of the first boss, and therefore on the basis that the overall rigidity of the tail door structure is further guaranteed, the situation that the local connection strength of the connecting positions of the inner plate body, the tail door outer plate and the first boss is too high is prevented; therefore, the conditions that stress concentration occurs on the tail door structure and deformation is prone to occurring when the tail door structure is subjected to small external force are reduced or even avoided.

Description

Technical Field

[0001] This disclosure relates to the field of vehicles, and more specifically, to a tailgate inner panel, a tailgate structure, and a vehicle. Background Technology

[0002] In related technologies, the overall rigidity, dent resistance, and modal performance of the vehicle's tailgate structure are poor. During transportation and use, the tailgate structure may easily deform even under small external forces, thus affecting the performance and service life of the tailgate structure. Utility Model Content

[0003] The purpose of this disclosure is to provide a tailgate inner panel, a tailgate structure, and a vehicle to reduce the weight of the tailgate structure and facilitate the installation and arrangement of other components within the tailgate structure, thereby at least partially solving the aforementioned technical problems.

[0004] To achieve the above objectives, a first aspect of this disclosure provides a tailgate inner panel, comprising: an inner panel body; and a reinforcing structure disposed on the inner panel body, the reinforcing structure including a boss structure, the boss structure including at least one first boss with a trapezoidal cross-section.

[0005] Optionally, the boss structure further includes at least one second boss with a triangular cross-section.

[0006] Optionally, the first boss and / or the second boss are provided with through holes.

[0007] Optionally, the through-hole includes a weight reduction hole and / or a wiring hole.

[0008] Optionally, the boss structure is connected to the inner panel body and extends toward the tailgate outer panel connected to the inner panel body for connection with the tailgate outer panel.

[0009] Optionally, the boss structure has a connecting surface on the side opposite to the inner panel body that connects to the outer panel of the tailgate.

[0010] Optionally, the connecting surface includes a profile adapted to mate with the tailgate outer panel.

[0011] Optionally, an adhesive layer is provided on the connecting surface.

[0012] Optionally, multiple reinforcing structures are provided, and the multiple reinforcing structures are spaced apart on the inner plate body.

[0013] Optionally, at least some of the multiple reinforcing structures are arranged in pairs, and the paired reinforcing structures are symmetrically arranged relative to a central plane; wherein the central plane passes through the center position of the inner plate body in a third direction and is perpendicular to the third direction.

[0014] Optionally, the inner plate body and the reinforcing structure are integrally formed.

[0015] Optionally, the reinforcing structure includes a first reinforcing rib connecting the boss structure and the inner plate body.

[0016] Optionally, the first reinforcing rib is connected to the inner plate body and extends toward the boss structure to connect with the outer side wall of the boss structure.

[0017] Optionally, the inner panel body is further provided with a second reinforcing rib, the second reinforcing rib protruding from the inner panel body, and the side of the second reinforcing rib facing away from the inner panel body can be connected to the outer panel of the tailgate.

[0018] Optionally, the second reinforcing rib is bonded to the outer panel of the tailgate.

[0019] Optionally, the inner panel body is further provided with a support member located between the inner panel body and the tailgate outer panel.

[0020] Optionally, the inner plate body includes a first plate and a second plate, the first plate extending in a first direction and the second plate extending in a second direction, the first direction and the second direction forming an angle.

[0021] Optionally, the first plate is provided with a second reinforcing rib and / or support member that can be connected to the outer panel of the tailgate.

[0022] Optionally, the reinforcing structure is disposed on the second plate.

[0023] Optionally, the plurality of reinforcing structures are divided into at least one first reinforcing structure group and at least one second reinforcing structure group. The first reinforcing structure group and the second reinforcing structure group each include two pairs of reinforcing structures that are symmetrically arranged relative to their center planes. The center plane passes through the center position of the inner plate body in a third direction and is perpendicular to the third direction. The second reinforcing structure group is located closer to the bottom of the second plate body than the first reinforcing structure group.

[0024] Optionally, two first bosses symmetrically arranged relative to the central face form the first reinforcing structure group; two second bosses symmetrically arranged relative to the central face form the second reinforcing structure group.

[0025] Optionally, the profile on the first boss for connecting with the tailgate outer panel includes a folded surface.

[0026] Optionally, the surface on the second boss for connection with the tailgate outer panel includes an arc surface.

[0027] A second aspect of this disclosure provides a tailgate structure including an outer tailgate panel and the aforementioned inner tailgate panel connected to the outer tailgate panel.

[0028] A third aspect of this disclosure provides a vehicle including the aforementioned tailgate structure.

[0029] Through the above technical solution, the first protrusion provided on the inner panel body can improve the overall rigidity and strength of the tailgate structure formed by the connection of the inner and outer tailgate panels. Furthermore, its cross-section is a trapezoidal shape with good stability, buffering capacity, and support strength. Therefore, it can further improve the connection strength and other properties of the tailgate structure formed by the connection of the inner panel body and the outer tailgate panel. In addition, the provision of the first protrusion increases the connection area between the inner panel body and the outer tailgate panel, thereby preventing excessive local connection strength at the connection point between the inner panel body, the outer tailgate panel, and the first protrusion, while further ensuring the overall rigidity of the tailgate structure. This reduces or even avoids stress concentration in the tailgate structure and prevents deformation under small external forces.

[0030] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0031] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0032] Figure 1 This is a schematic diagram of the inner plate body from the first angle.

[0033] Figure 2 This is a schematic diagram of the second angle structure of the inner plate body of this disclosure;

[0034] Figure 3 This is a schematic diagram of the third-angle structure of the inner plate body of this disclosure;

[0035] Figure 4 This is a schematic diagram of the structure of the inner panel body and the outer panel of the tailgate when they are connected.

[0036] Explanation of reference numerals in the attached figures

[0037] 1-Inner panel body; 11-First panel; 12-Second panel; 2-Reinforcing structure; 21-Boss structure; 211-Connecting surface; 212-Adhesive layer; 22-Through hole; 23-First boss; 24-Second boss; 3-First reinforcing rib; 4-Second reinforcing rib; 5-Tailgate outer panel; 6-First reinforcing structure group; 7-Second reinforcing structure group; 8-Supporting component; A-Center plane; X-First direction; Z-Second direction; Y-Third direction. Detailed Implementation

[0038] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0039] In this disclosure, unless otherwise stated, directional terms such as "front," "rear," "left," "right," "up," and "down" generally refer to the "front," "rear," "left," "right," "up," and "down" positions of the corresponding components when they are in use. Specifically, when the tailgate structure is connected to the vehicle body and in the closed position, the "front," "rear," "left," "right," "up," and "down" positions of the vehicle during normal driving can be found in the following references. Figure 1 and Figure 2 In the drawings shown, "inner" and "outer" refer to "inner" and "outer" relative to the contour of the corresponding component itself; "first direction" refers to a direction parallel to the front-rear direction of the vehicle; "third direction" refers to a direction parallel to the left-right direction of the vehicle; "center plane" refers to a plane passing through the center position of the inner panel body in the left-right direction and perpendicular to the left-right direction. Furthermore, the terms "first," "second," etc., used in this disclosure are for distinguishing one element from another and do not have sequential or importance implications. In addition, in the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements. The above definitions are for explanation and illustration only and should not be construed as limiting this disclosure.

[0040] In related technologies, in order to meet the requirements of vehicle lightweighting, the tailgate structure of the vehicle can be configured as a plastic tailgate. However, since the rigidity of plastic tailgate is worse than that of stamped sheet metal tailgate, it is prone to deformation, which affects the use effect and service life of the tailgate structure.

[0041] In view of this, in order to solve the above-mentioned technical problems, the tailgate inner panel and tailgate structure in the exemplary embodiments of this disclosure will be described below with reference to the accompanying drawings.

[0042] refer to Figures 1 to 4 As shown, in a first aspect of this disclosure, a tailgate inner panel is provided. The tailgate inner panel may include an inner panel body 1 and a reinforcing structure 2, wherein the reinforcing structure 2 may include a boss structure 21, and the boss structure 21 includes at least one first boss 23 with a trapezoidal cross-section.

[0043] Through the above technical solution, the connection points between the inner panel 1 and the outer panel 5 of the tailgate can be increased by the reinforcing structure 2, thereby improving the overall strength and rigidity of the tailgate structure formed after the inner panel 1 and the outer panel 5 are connected. For example, it can also improve the anti-dent performance and modal performance of the tailgate structure. In addition, since the reinforcing structure 2 includes a boss structure 21, and the boss structure 21 can maximize the connection area between the inner panel 1 and the outer panel 5 compared to rod-shaped or plate-shaped structures, the boss structure 21 can also prevent the local connection strength at the connection between the inner panel 1 and the outer panel 5 and the boss structure 21 from being too strong while ensuring the overall rigidity of the tailgate structure. This reduces or avoids stress concentration or easy deformation in the tailgate structure. Furthermore, the first boss 23 with a trapezoidal cross-section has good stability, buffering and support strength, thus further improving the connection strength and other performance of the tailgate structure formed after the inner panel 1 and the outer panel 5 are connected.

[0044] It should be noted that the above-mentioned cross section can be the cross section of the first boss 23 in the left-right direction of the inner plate body 1, and / or the cross section of the first boss 23 in the direction extending along the side of the tailgate outer plate 5.

[0045] The trapezoidal cross-section can be understood as a trapezoidal cross-section, or it can be understood as an approximate trapezoidal shape. For example, in order to adapt to or avoid the structure on the inner and / or outer tailgate panels 5, the side of the first boss 23 can be bent or curved.

[0046] It is understood that in some embodiments not shown, the cross-section of the boss structure 21 can also be configured as a polygonal irregular structure, as long as it can be easily connected to the tailgate outer panel 5 while ensuring strength and stability. That is, the shape of the cross-section can be constructed as any shape with good stability.

[0047] For example, in some embodiments, the boss structure 21 may also include at least one second boss 24 with a triangular cross-section. Similarly, a triangular cross-section can be understood as a cross-section that is triangular in shape, or it can also be understood as a shape that is approximately triangular. For example, in order to adapt to or avoid the structure on the inner tailgate panel and / or outer tailgate panel 5, the side of the second boss 24 may be bent or curved, etc.

[0048] In embodiments of this disclosure, the first boss 23 and / or the second boss 24 may be provided with through holes 22. The through holes 22 reduce the volume of the reinforcing structure 2 to a certain extent. Therefore, the through holes 22 not only reduce the weight of the tailgate inner panel but also facilitate the connection and arrangement of other components within the tailgate inner panel, such as wiring harnesses. For example, control circuits for automatically opening and closing the tailgate structure, lighting circuits for providing illumination to the tailgate structure, or signal circuits for providing brake signals can be threaded through the through holes 22. Based on this, after the tailgate inner panel of this disclosure is connected to the tailgate outer panel 5, it not only improves the overall strength and rigidity of the tailgate structure under the action of the reinforcing structure 2 but also reduces the weight of the tailgate structure and facilitates the arrangement and installation of internal components.

[0049] The through hole 22 can be configured in various ways depending on the size of the reinforcing structure 2 and the actual installation scenario. For example, the through hole 22 may include a weight-reducing hole and / or a wiring hole. When the space at the location of the reinforcing structure 2 is small and the volume of the reinforcing structure 2 itself is relatively small, there may be one through hole 22, which can be used as a weight-reducing hole and / or a wiring hole. Alternatively, when the space at the location of the reinforcing structure 2 is large and the volume of the reinforcing structure 2 itself is large, there may be multiple through holes 22. All of the multiple through holes 22 may be weight-reducing holes, or all may be wiring holes, or some may be weight-reducing holes and others may be wiring holes. This achieves the effect of reducing the weight of the tailgate inner panel and facilitating the arrangement of components such as wiring harnesses on the tailgate inner panel.

[0050] Specifically, the boss structure 21 can be connected to the inner panel body 1 and extend toward the tailgate outer panel 5 connected to the inner panel body 1 for connection with the tailgate outer panel 5. That is, at least one side of the boss structure 21 can be connected to the tailgate outer panel 5, thereby increasing the connection area between the boss structure 21 and the tailgate outer panel 5.

[0051] In some implementations, such as Figure 1 and Figure 2 As shown, the boss structure 21 has a connecting surface 211 on the side away from the inner panel body 1 that connects to the tailgate outer panel 5. The setting of the connecting surface 211 can increase the connection area between the boss structure 21 and the tailgate outer panel 5, thereby avoiding the situation of excessive local strength on the tailgate outer panel 5.

[0052] Among them, such as Figures 1 to 4As shown, since the mating surfaces on the outer tailgate panel 5 are not all flat, they can also be in a bent or curved state. Therefore, in order to ensure that the connecting surface 211 and the mating surface can fit together better and improve the connection effect between the boss structure 21 and the outer tailgate panel 5, the connecting surface 211 can include a profile adapted to mate with the outer tailgate panel 5. This profile can be constructed as a flat surface, a folded surface, a curved surface, etc., to adapt to the mating surfaces on the outer tailgate panel 5.

[0053] In addition, such as Figure 1 and Figure 2 As shown, an adhesive layer 212 can be provided on the connecting surface 211. That is, the connecting surface 211 of the boss structure 21 can be connected to the tailgate outer panel 5 by means of adhesive layer 212. For example, structural adhesive can be applied to the connecting surface 211, and the structural adhesive forms the adhesive layer 212. Thus, the boss structure 21 can be bonded to the tailgate outer panel 5 by structural adhesive. By bonding the boss structure 21 and the tailgate outer panel 5 with adhesive layer 212 such as structural adhesive, the connection between the boss structure 21 and the tailgate outer panel 5 can be made tighter. Compared with welding or fastener connection, the setting of adhesive layer 212 can also reduce the use of metal parts, thereby reducing the weight of the tailgate structure to a certain extent.

[0054] In embodiments of this disclosure, such as Figure 1 As shown, multiple reinforcing structures 2 can be provided, and multiple reinforcing structures 2 can be spaced apart on the inner panel body 1. This can further increase the connection area between the inner panel body 1 and the tailgate outer panel 5, thereby improving the overall rigidity and strength of the tailgate structure.

[0055] Among them, such as Figures 1 to 3 As shown, at least some of the multiple reinforcing structures 2 are arranged in pairs, and the paired reinforcing structures 2 are symmetrically arranged relative to the central plane A. The central plane A passes through the center position of the inner panel body 1 in the third direction Y and is perpendicular to the third direction Y. That is, the central plane A is the center of the tailgate structure in the left-right direction and is perpendicular to the left-right direction. The symmetrical arrangement of the reinforcing structures 2 on the inner panel body 1 facilitates the molding of the inner panel body 1. For example, when the reinforcing structure 2 and the inner panel body 1 are integrally molded, the symmetrical arrangement of the components facilitates mold design, simplifies the production process, and improves production efficiency. Furthermore, the symmetrical arrangement of the reinforcing structures 2 allows for even load distribution on both sides of the inner panel body 1. Additionally, the symmetrical arrangement also ensures the stability of the vehicle during driving. Moreover, from the outside of the tailgate structure, the symmetrical structure also improves the aesthetics of the tailgate structure.

[0056] Furthermore, the reinforcing structure 2 can be arranged in various ways. For example, when the number of reinforcing structures 2 is even, all reinforcing structures 2 can be arranged in pairs and symmetrical with respect to the center plane A. Alternatively, some reinforcing structures 2 can be arranged in pairs symmetrically, and the other part can be arranged at intervals at any suitable position on the inner panel body 1 as required. When the number of reinforcing structures 2 is odd, the remaining reinforcing structures 2 can be arranged at any suitable position on the inner panel body 1. Alternatively, some reinforcing structures 2 can be arranged in pairs symmetrically, and the other part can be arranged at intervals at any suitable position on the inner panel body 1 as required.

[0057] It should be noted that, since the boss structure 21 of the reinforcing structure 2 includes at least one first boss 23, by way of example, when the reinforcing structure 2 includes one first boss 23, another reinforcing structure 2 symmetrically arranged with respect to the center plane A of the reinforcing structure 2 also has one first boss 23; when the reinforcing structure 2 includes multiple first bosses 23, another reinforcing structure 2 symmetrically arranged with respect to the center plane A of the reinforcing structure 2 also has multiple first bosses 23, so as to ensure that the reinforcing structures 2 on the inner plate body 1 can be arranged symmetrically.

[0058] In some embodiments, the inner panel body 1 and the reinforcing structure 2 can be integrally formed. The integral forming design allows the inner panel body 1 and the reinforcing structure 2 to form a whole, which can improve the overall structural strength after the inner panel body 1 and the reinforcing structure 2 are connected. Moreover, no other connecting parts are required between the two, which can reduce the weight after the two are connected to meet the requirements of vehicle lightweighting.

[0059] Of course, in some embodiments not shown, the inner panel body 1 can also be designed as separate from the reinforcing structure 2. That is, the reinforcing structure 2 can be connected to the inner panel body 1 by means of connectors, welding or bonding. Thus, different connection methods can be used between the inner panel body 1 and the reinforcing structure 2 depending on the situation. For example, the reinforcing structure 2 can be entirely integrally formed with the inner panel body 1, or the reinforcing structure 2 can be entirely connected to the inner panel body 1 by means of connectors, welding or bonding. Alternatively, some of the reinforcing structures 2 can be integrally formed with the inner panel body 1, while other reinforcing structures 2 can be connected to the inner panel body 1 by fasteners such as clips, bolts and screws, or by structural adhesive, or by welding. This allows for the inner panel body 1 to be adapted to different installation conditions.

[0060] In embodiments of this disclosure, such as Figures 1 to 4As shown, the reinforcing structure 2 may include a first reinforcing rib 3 connecting the boss structure 21 and the inner panel body 1. The arrangement of the first reinforcing rib 3 can increase the connection area between the boss structure 21 and the inner panel body 1, thereby improving the connection strength between the boss structure 21 and the inner panel body 1, as well as the rigidity and other properties of the tailgate structure.

[0061] Specifically, such as Figures 1 to 4 As shown, the first reinforcing rib 3 can be connected to the inner panel body 1 and extend toward the boss structure 21 to connect with the outer wall of the boss structure 21. The number of first reinforcing ribs 3 can be adaptively adjusted according to the location of the reinforcing structure 2 and the size of the space around the first reinforcing ribs 3. For example, when the space around the first reinforcing ribs 3 is large, multiple first reinforcing ribs 3 can be provided. The first reinforcing ribs 3 can be arranged around the bottom of the boss structure 21 along the connection area between the boss structure 21 and the inner panel body 1, thereby maximizing the connection strength between the boss structure 21 and the inner panel body 1, thus ensuring the rigidity of the tailgate structure.

[0062] In embodiments of this disclosure, such as Figure 2 As shown, a second reinforcing rib 4 can also be provided on the inner panel body 1. The second reinforcing rib 4 protrudes from the inner panel body 1, and the side of the second reinforcing rib 4 facing away from the inner panel body 1 can be connected to the tailgate outer panel 5. The provision of the second reinforcing rib 4 can improve the strength and rigidity of the area not covered by the reinforcing structure 2. Specifically, multiple second reinforcing ribs 4 can be provided, and multiple second reinforcing ribs 4 can be spaced apart on the inner panel body 1, thereby further improving the strength and rigidity of the tailgate structure.

[0063] The second reinforcing rib 4 can be bonded to the outer panel 5 of the tailgate. By using adhesive bonding to connect the second reinforcing rib 4 to the outer panel 5 of the tailgate, the tightness and stability of the connection can be ensured, and no other complex connection structure is required, thus improving the connection efficiency.

[0064] In addition, a support member 8 is provided on the inner panel body 1 between the inner panel body 1 and the tailgate outer panel 5. The support member 8 can be separately installed between the inner panel body 1 and the tailgate outer panel 5 as needed, so as to ensure the overall rigidity and strength of the tailgate structure together with the reinforcing structure 2 and / or the second reinforcing rib 4. For example, the support member 8 can be configured as a support block, foam, or felt. In addition, due to their moderate softness and hardness, foam and felt can absorb a certain amount of vibration energy while having a certain strength, thereby reducing or even avoiding bulging of the tailgate outer panel 5 or abnormal noise between the inner panel body 1 and the tailgate outer panel 5.

[0065] It should be noted that the tailgate inner panel disclosed herein can be applied to the tailgate structure of hatchback vehicles as well as the tailgate structure of sedan vehicles.

[0066] For example, such as Figures 1 to 3 As shown, when the tailgate inner panel of this disclosure is installed on the tailgate structure of a sedan, the inner panel body 1 may include a first plate 11 and a second plate 12. The first plate 11 extends in the first direction X, and the second plate 12 extends in the second direction Z. The first direction X and the second direction Z form an angle. The angle between the first direction X and the second direction Z can be configured to be any angle other than 0° and 180°. Considering the actual usage scenario of the tailgate structure, an angle of 90° or close to 90° is preferable. That is, the first plate 11 can extend from front to back, and the second plate 12, after being connected to the rear end of the first plate 11, can extend downward or obliquely downward in the height direction of the tailgate structure. In other words, the part of the tailgate structure formed by the first plate 11 after being connected to the outer tailgate panel 5 is located at the top of the vehicle's trunk, and the remaining part of the tailgate structure formed by the second plate 12 after being connected to the outer tailgate panel 5 is located at the rear end of the vehicle. The vehicle trunk formed by this tailgate structure can be separated from the passenger area of ​​the vehicle, thereby ensuring the cleanliness and comfort of the passenger area. In addition, when the angle between the first direction X and the second direction Z is 90°, the second direction Z can be referenced to the height direction of the vehicle.

[0067] Because the tailgate structure of a sedan is susceptible to external forces such as pressing or bumping during daily use, the area where the outer tailgate panel 5 connects to the second panel 12 is prone to damage. Figure 1 As shown, a reinforcing structure 2 with better performance such as improved strength and rigidity can be provided on the second plate 12, while a second reinforcing rib 4 and / or support member 8 that can be connected to the tailgate outer panel 5 can be provided on the first plate 11. Thus, the reinforcing structure 2, the second reinforcing rib 4 and the support member 8 can be set in a targeted manner according to the stress-prone areas of the tailgate structure. In this way, the production cost of the tailgate structure can be saved and the production efficiency can be improved while ensuring the strength and rigidity of the tailgate structure.

[0068] In embodiments of this disclosure, such as Figures 1 to 3As shown, the multiple reinforcing structures 2 can be divided into at least one first reinforcing structure group 6 and at least one second reinforcing structure group 7. The first reinforcing structure group 6 and the second reinforcing structure group 7 each include two reinforcing structures 2 arranged in pairs and symmetrically arranged relative to the center plane A. The center plane A passes through the center position of the inner plate body 1 in the third direction Y and is perpendicular to the third direction Y. Among them, the second reinforcing structure group 7 is arranged closer to the bottom of the second plate body 12 than the first reinforcing structure group 6. The symmetrically arranged first reinforcing structure group 6 and the symmetrically arranged second reinforcing structure group 7 can maximize the connection area between the first plate 11 and the tailgate outer plate 5, avoiding local overstrength and increasing the strength, rigidity and other properties after the connection. For example, multiple reinforcing structures 2 can include a first reinforcing structure group 6 and a second reinforcing structure group 7. The two reinforcing structures 2 of the first reinforcing structure group 6 are respectively arranged close to the two sides of the inner plate body 1, thereby ensuring the strength of the two sides of the tailgate structure. The two reinforcing structures 2 of the second reinforcing structure group 7 can be arranged adjacent to the two reinforcing structures 2 of the first reinforcing structure group 6 located on the same side of the center plane A. Since the second reinforcing structure group 7 is arranged close to the bottom of the second plate 12, it can strengthen the bottom area of ​​the tailgate structure.

[0069] Specifically, two first protrusions 23 symmetrically arranged on opposite center plane A form a first reinforcing structure group 6; two second protrusions 24 symmetrically arranged on opposite center plane A form a second reinforcing structure group 7. That is, the two protrusion structures 21 of the first reinforcing structure group 6 each include a first protrusion 23, and the two protrusion structures 21 of the second reinforcing structure group 7 each include a second protrusion 24.

[0070] Among them, such as Figures 1 to 4 As shown, the surface on the first boss 23 for connection with the tailgate outer panel 5 may include a folded surface. Exemplarily, the cross-section of the first boss 23 of the first reinforcing structure group 6 may be approximately trapezoidal, and at least a portion of the side of the first boss 23 for connection with the tailgate outer panel 5 may be a folded surface, which facilitates a tighter connection between the first boss 23 and the tailgate outer panel 5.

[0071] In addition, such as Figures 1 to 4 As shown, the surface on the second boss 24 used for connection with the tailgate outer panel 5 may include an arc surface. Exemplarily, the cross-section of the second boss 24 of the second reinforcing structure group 7 may be approximately triangular in shape, and at least a portion of the side of the second boss 24 used for connection with the tailgate outer panel 5 may be an arc surface, which facilitates a tighter connection between the second boss 24 and the bottom area of ​​the tailgate outer panel 5.

[0072] A second aspect of this disclosure provides a tailgate structure, including an outer tailgate panel 5 and the aforementioned inner tailgate panel connected to the outer tailgate panel 5. It should be noted that this tailgate structure possesses all the beneficial effects of the aforementioned inner tailgate panel, which will not be elaborated upon here.

[0073] A third aspect of this disclosure provides a vehicle including the aforementioned tailgate structure. It should be noted that this vehicle possesses all the beneficial effects of the aforementioned tailgate structure, which will not be elaborated upon here.

[0074] In summary, this disclosure exemplarily illustrates the connection method and beneficial effects of the tailgate inner panel and tailgate outer panel 5.

[0075] The first plate 11 of the tailgate inner panel of this disclosure may be provided with second reinforcing ribs 4 and / or support members 8. Multiple second reinforcing ribs 4 may be integrally formed with the first plate 11 and evenly distributed along a linear direction on the first plate 11. Structural adhesive may be applied to the side of the second reinforcing ribs 4 near the tailgate outer panel 5 to bond them together, thereby ensuring a tight connection between the second reinforcing ribs 4 and the tailgate outer panel 5. The support members 8 may be attached to the first plate 11 by adhesive or by fasteners such as screws or bolts. For example, when the support member 8 is configured as a support block, it can be connected to the first plate 11 by fasteners or by structural adhesive. The side of it facing away from the first plate 11 can be bonded to the tailgate outer panel 5 by structural adhesive, or it can abut against the tailgate outer panel 5 after the tailgate outer panel 5 and the inner panel body 1 are connected. Thus, the second reinforcing rib 4 and / or the support member 8 can increase the connection area on the second plate 12 and the tailgate outer panel 5 to a certain extent, so as to ensure the strength and rigidity of the tailgate structure.

[0076] The second plate 12 of the tailgate inner panel may have a first reinforcing structure group 6 and a second reinforcing structure group 7. The first boss 23 of the first reinforcing structure group 6 has an approximately trapezoidal cross-section. At least a portion of the connecting surface 211 of the first boss 23 may be configured as a folded surface to fit the corresponding area of ​​the tailgate outer panel 5, so that the connecting surface 211 of the first boss 23 is tightly connected to the area of ​​the tailgate outer panel 5. The two first bosses 23 of the first reinforcing structure group 6 may be respectively set on the left and right sides of the inner panel body 1, thereby increasing the connection surface between the inner panel body 1 and the two side areas of the tailgate outer panel 5. The cross-section of the second protrusion 24 of the second reinforcing structure group 7 can be approximately triangular. At least a portion of the connecting surface 211 of the second protrusion 24 can be configured as an arc surface to adapt to the corresponding area of ​​the tailgate outer panel 5, so that the connecting surface 211 of the second protrusion 24 is tightly connected to the bottom area of ​​the tailgate outer panel 5. The two second protrusions 24 of the second reinforcing structure group 7 can be arranged adjacent to the two first protrusions 23 of the first reinforcing structure group 6 in a one-to-one correspondence, so as to maximize the connection area on the first plate 11 and the tailgate outer panel 5, so as to ensure the strength and rigidity of the tailgate structure.

[0077] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0078] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0079] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A tailgate inner panel, characterized in that, include: Inner panel body; and A reinforcing structure is provided on the inner plate body, the reinforcing structure including a boss structure, the boss structure including at least one first boss with a trapezoidal cross-section.

2. The tailgate inner panel according to claim 1, characterized in that, The boss structure also includes at least one second boss with a triangular cross-section.

3. The tailgate inner panel according to claim 2, characterized in that, The first boss and / or the second boss are provided with through holes.

4. The tailgate inner panel according to claim 3, characterized in that, The through-hole includes a weight reduction hole and / or a wiring hole.

5. The tailgate inner panel according to claim 1, characterized in that, The boss structure is connected to the inner panel body and extends toward the tailgate outer panel connected to the inner panel body for connection with the tailgate outer panel.

6. The tailgate inner panel according to claim 1, characterized in that, The boss structure has a connecting surface on the side opposite to the inner panel body that connects to the outer panel of the tailgate.

7. The tailgate inner panel according to claim 6, characterized in that, The connecting surface includes a profile adapted to mate with the outer panel of the tailgate.

8. The tailgate inner panel according to claim 6, characterized in that, An adhesive layer is provided on the connecting surface.

9. The tailgate inner panel according to claim 1, characterized in that, Multiple reinforcing structures are provided, and the multiple reinforcing structures are spaced apart on the inner plate body.

10. The tailgate inner panel according to claim 9, characterized in that, At least some of the multiple reinforcing structures are arranged in pairs, and the paired reinforcing structures are symmetrically arranged relative to the central plane; The center surface passes through the center position of the inner plate body in a third direction and is perpendicular to the third direction.

11. The tailgate inner panel according to any one of claims 1-10, characterized in that, The inner plate body and the reinforcing structure are integrally formed.

12. The tailgate inner panel according to claim 1, characterized in that, The reinforcing structure includes a first reinforcing rib connecting the boss structure and the inner plate body.

13. The tailgate inner panel according to claim 12, characterized in that, The first reinforcing rib is connected to the inner plate body and extends toward the boss structure to connect with the outer wall of the boss structure.

14. The tailgate inner panel according to claim 1, characterized in that, The inner panel body is also provided with a second reinforcing rib, which protrudes from the inner panel body and the side of the second reinforcing rib facing away from the inner panel body can be connected to the outer panel of the tailgate.

15. The tailgate inner panel according to claim 14, characterized in that, The second reinforcing rib is bonded to the outer panel of the tailgate.

16. The tailgate inner panel according to claim 1, characterized in that, The inner panel body is also provided with a support member located between the inner panel body and the tailgate outer panel.

17. The tailgate inner panel according to claim 2, characterized in that, The inner plate body includes a first plate and a second plate connected to each other. The first plate extends in a first direction, and the second plate extends in a second direction. The first direction and the second direction form an angle.

18. The tailgate inner panel according to claim 17, characterized in that, The first plate is provided with a second reinforcing rib and / or support member that can be connected to the outer panel of the tailgate.

19. The tailgate inner panel according to claim 17 or 18, characterized in that, The reinforcing structure is disposed on the second plate.

20. The tailgate inner panel according to claim 19, characterized in that, The plurality of reinforcing structures are divided into at least one first reinforcing structure group and at least one second reinforcing structure group. Each of the first reinforcing structure group and the second reinforcing structure group includes two reinforcing structures arranged in pairs and symmetrically arranged relative to the central face. The central face passes through the center position of the inner plate body in the third direction and is perpendicular to the third direction. The second reinforcing structure group is located closer to the bottom of the second plate than the first reinforcing structure group.

21. The tailgate inner panel according to claim 20, characterized in that, Two first bosses symmetrically arranged relative to the central face form the first reinforcing structure group; Two second bosses symmetrically arranged relative to the central face form the second reinforcing structure group.

22. The tailgate inner panel according to claim 21, characterized in that, The profile on the first boss for connecting with the outer panel of the tailgate includes a folded surface.

23. The tailgate inner panel according to claim 21, characterized in that, The surface on the second boss used for connection with the outer panel of the tailgate includes an arc surface.

24. A tailgate structure, characterized in that, It includes an outer tailgate panel and an inner tailgate panel connected to the outer tailgate panel as described in any one of claims 1-23.

25. A vehicle, characterized in that, Includes the tailgate structure as described in claim 24.

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