Back door and vehicle

Abstract

The utility model discloses a back door and a vehicle, the back door comprises a back door outer plate and a back door inner plate, the back door inner plate is fixedly connected with the back door outer plate, a cavity is formed by the back door outer plate and the back door inner plate in a surrounding mode, a part of the back door inner plate sinks towards the back door outer plate, and the back door outer plate is fixedly connected with the back door inner plate. A volume expansion groove is formed in the side, away from the back door outer plate, of the back door inner plate, and the volume expansion groove is communicated with a compartment of a vehicle. On the basis of the back door, when the back door is in the closed position, the expansion groove can communicate with the compartment of the vehicle body, the rear space of the vehicle becomes larger due to the arrangement of the expansion groove, and therefore the loading capacity of the vehicle is improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle tailgates, and in particular to a tailgate and a vehicle. Background Art

[0002] The back door, also known as the tailgate or rear door, is a door structure located at the rear of the vehicle and covers the rear space. The rear space of the vehicle is mainly used by users to place accompanying items. As people become more and more dependent on vehicles, many people will choose to drive themselves for medium and long-distance travel, and accordingly they will carry more accompanying items, which easily leads to insufficient space in the rear of the vehicle. Therefore, how to expand the rear space to improve the vehicle's carrying capacity is a problem worth studying. Utility Model Content

[0003] The embodiments of the present application provide a tailgate and a vehicle, which can improve the cargo carrying capacity of the rear space of the vehicle.

[0004] In the first aspect, an embodiment of the present application provides a tailgate, which includes a tailgate outer panel and a tailgate inner panel, wherein the tailgate inner panel is fixedly connected to the tailgate outer panel, the tailgate outer panel and the tailgate inner panel are surrounded by a cavity, and a portion of the tailgate inner panel is recessed toward the tailgate outer panel so that an expansion groove is formed on the side of the tailgate inner panel away from the tailgate outer panel, and the expansion groove is used to communicate with the vehicle compartment.

[0005] Based on the tailgate of the embodiment of the present application, when the tailgate is in the closed position, the expansion groove can be connected to the compartment of the vehicle body. At this time, the expansion groove increases the vehicle's carrying capacity.

[0006] In some embodiments of the present application, the rear door further includes a support member, which is located in the cavity, one end of the support member is connected to the rear door outer panel, and the other end of the support member is connected to the bottom wall of the expansion groove.

[0007] Based on the above embodiment, a support member is arranged between the tailgate outer panel and the tailgate inner panel, and the external force borne by the tailgate inner panel will be transmitted to the tailgate outer panel through the support member, so that the external force borne by the tailgate inner panel and the tailgate outer panel are shared by both, thereby enhancing the structural strength of the tailgate.

[0008] In some embodiments of the present application, the support member includes a connecting section and a load-bearing section, the connecting section is connected to the tailgate outer panel and is attached to the surface of the tailgate outer panel; one end of the load-bearing section is connected to the connecting section, and the other end is connected to the tailgate inner panel, and the load-bearing section gradually decreases in height along the vehicle body height direction from one end connected to the connecting section to the other end connected to the tailgate inner panel.

[0009] Based on the above embodiment, when the inner panel of the back door is subjected to external force, the external force exerted on the inner panel of the back door is transmitted to the connecting section through the load-bearing section and then to the outer panel of the back door. After the connecting section is attached to the inner surface of the outer panel of the back door, the contact area between the connecting section and the outer panel of the back door is increased. According to the pressure formula P=F / S, it can be seen that the pressure generated between the contact part of the connecting section and the outer panel of the back door is reduced, which can effectively protect the structure of the outer panel of the back door. In addition, the load-bearing section is inclined, and when the inner panel of the back door is subjected to external force, the load-bearing section is easily deformed to convert the external force transmitted from the inner panel of the back door to the load-bearing section into elastic potential energy, so as to enhance the structural strength of the back door.

[0010] In some embodiments of the present application, a plurality of weight-reducing openings are provided on the bottom wall of the capacity expansion groove.

[0011] Based on the above embodiments, the plurality of weight-reducing openings can reduce the weight of the back door inner panel, thereby reducing the weight of the entire back door.

[0012] In some embodiments of the present application, the tailgate further includes an interior decoration component, which is arranged in contact with a side of the tailgate inner panel away from the tailgate outer panel and at least covers a plurality of the weight-reducing openings.

[0013] Based on the above embodiment, after the interior decoration covers the multiple weight-reducing openings, it can not only prevent the items placed in the vehicle compartment from entering between the tailgate inner panel and the tailgate outer panel through the weight-reducing openings, but also improve the aesthetics of the interior of the vehicle compartment.

[0014] In some embodiments of the present application, the rear door further includes a decorative panel, which is detachably connected to the rear door inner panel. When the decorative panel is connected to the rear door inner panel, the decorative panel covers the notch of the expansion groove, so that the decorative panel and the interior decoration form a storage cavity.

[0015] Based on the above embodiment, when the volume of the vehicle compartment is sufficient for use, the decorative panel can be fixedly connected to the inner panel of the back door, and the decorative panel covers the notch of the expansion groove, which not only forms a storage cavity for placing items between the decorative panel and the interior decoration, but also enhances the aesthetics of the vehicle; when the volume of the vehicle compartment is insufficient, the decorative panel can be separated from the inner panel of the back door to expand the volume of the vehicle compartment.

[0016] In some embodiments of the present application, from the bottom wall of the expansion groove to the notch of the expansion groove, the distance between at least a portion of the side wall of the expansion groove and the axis of the expansion groove gradually increases.

[0017] Based on the above embodiment, at least part of the side wall of the expansion groove is configured as an inclined wall, and the inclined side wall facilitates the conduction of force.

[0018] In some embodiments of the present application, the vehicle body is provided with a rear bumper; the tailgate inner panel includes a main body and a lower flange, the expansion groove is provided in the main body, the lower flange is recessed in a direction away from the rear bumper to form an avoidance groove, and the avoidance groove is used to avoid the rear bumper when the tailgate rotates between a maximum opening position and a closed position.

[0019] Based on the above embodiments, the avoidance groove can prevent interference between the tailgate and the rear bumper.

[0020] In some embodiments of the present application, the tailgate outer panel portion is recessed toward the tailgate inner panel to form a receiving groove, and the receiving groove is used to receive the license plate.

[0021] In a second aspect, an embodiment of the present application provides a vehicle, comprising a vehicle body and a tailgate as described above, wherein the tailgate is rotatably connected to the vehicle body.

[0022] Based on the vehicle in the embodiment of the present application, due to the above-mentioned tailgate, the vehicle of the present application has a stronger carrying capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of the structure of a rear door in an embodiment of the present application;

[0025] Figure 2 for Figure 1 A schematic diagram of the structure of the back door from another perspective shown;

[0026] Figure 3 for Figure 2 The structure diagram of the back door shown is another perspective diagram after the decorative panel is removed;

[0027] Figure 4 for Figure 3 The schematic diagram of the structure after the back door and the interior decoration are connected is shown.

[0028] Figure numerals: 10, back door outer panel; 11, accommodating groove; 20, back door inner panel; 21, main body; 211, expansion groove; 212, weight reduction opening; 22, lower flange; 221, avoidance groove; 30, support member; 31, connecting section; 32, load-bearing section; 40, decorative panel; 50, interior decoration member. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] The back door, also known as the tailgate or rear door, is a door structure located at the rear of the vehicle and covers the rear space. The rear space of the vehicle is mainly used by users to place accompanying items. As people become more and more dependent on vehicles, many people will choose to drive themselves for medium and long-distance travel, and accordingly they will carry more accompanying items, which easily leads to insufficient space in the rear of the vehicle. Therefore, how to expand the rear space to improve the vehicle's carrying capacity is a problem worth studying.

[0031] To solve the above technical problems, please refer to Figure 1 to Figure 2 As shown, the first aspect of the present application proposes a tailgate to improve the cargo carrying capacity of the rear space of the vehicle.

[0032] Please refer to Figure 1 to Figure 2 As shown, the back door includes a back door outer panel 10 and a back door inner panel 20, the back door inner panel 20 is fixedly connected to the back door outer panel 10, the back door outer panel 10 and the back door inner panel 20 are surrounded by a cavity, and the back door inner panel 20 is partially recessed toward the back door outer panel 10, so that the back door inner panel 20 is formed with an expansion groove 211 on the side away from the back door outer panel 10, and the expansion groove 211 is used to communicate with the vehicle compartment. It can be understood that the compartment is located at the rear of the vehicle, that is, forms the rear space of the vehicle, and the rear space can be used for carrying goods.

[0033] The rear tailgate in the embodiment of the present application can be used as a lower tailgate to cover only part of the hatch of the vehicle compartment, for example, a pickup truck, etc. The rear tailgate in the embodiment of the present application can also be used as a lower tailgate, and when the vehicle also includes an upper tailgate, the rear tailgate can cooperate with the upper tailgate to completely cover the hatch of the vehicle compartment.

[0034] The back door is usually composed of a back door inner panel 20 and a back door outer panel 10. In the embodiment of the present application, the shapes of the back door inner panel 20 and the back door outer panel 10 are not limited. The structures of the back doors of different vehicle models may be different, as long as the back door can cover part of the hatch of the vehicle compartment. In addition, to ensure the lightweight of the vehicle, the back door inner panel 20 and the back door outer panel 10 can be made of one of aluminum alloy, magnesium alloy, SMC (Sheet molding compound), PP-LGF (polypropylene-longglass fiber), carbon fiber, etc.

[0035] Based on the rear door of the embodiment of the present application, when the rear door is in the closed position, the expansion slot 211 can be connected to the vehicle body compartment, and the provision of the expansion slot 211 makes the rear space of the vehicle larger, thereby increasing the vehicle's carrying capacity. It can be understood that the shape, depth and size of the expansion slot 211 are not limited in the embodiment of the present application, and the expansion slot 211 of any shape, size and depth can expand the vehicle's carrying capacity after connecting to the vehicle compartment.

[0036] Please refer to Figure 3 As shown, in some embodiments of the present application, the tailgate further includes a support member 30, which is located in the cavity, one end of the support member 30 is connected to the tailgate outer panel 10, and the other end of the support member 30 is connected to the bottom wall of the expansion groove 211, and the support member 30 is arranged between the tailgate outer panel 10 and the tailgate inner panel 20. The external force borne by the tailgate inner panel 20 will be transmitted to the tailgate outer panel 10 through the support member 30, so that the external force borne by the tailgate inner panel 20 and the tailgate outer panel 10 are shared by both the tailgate inner panel 20 and the tailgate outer panel 10, thereby enhancing the structural strength of the tailgate. In combination with the above-mentioned tailgate inner panel 20 being recessed toward the tailgate outer panel 10 to form the expansion groove 211, in the embodiment of the present application, when the tailgate is in a closed position, the portion of the tailgate inner panel 20 close to the tailgate outer panel 10 along the length direction of the vehicle is the bottom wall of the expansion groove 211, and when the tailgate is in a maximum open position, the portion of the tailgate inner panel 20 close to the tailgate outer panel 10 along the height direction of the vehicle is the bottom wall of the expansion groove 211.

[0037] In some embodiments of the present application, the support member 30 includes a connecting section 31 and a load-bearing section 32. The connecting section 31 is connected to the tailgate outer panel 10 and is attached to the inner surface of the tailgate outer panel 10. One end of the load-bearing section 32 is connected to the connecting section 31, and the other end is connected to the tailgate inner panel 20. The load-bearing section 32 gradually decreases in height along the vehicle body height direction from one end connected to the connecting section 31 to the other end connected to the tailgate inner panel 20.

[0038] When the back door inner panel 20 is subjected to external force, the external force on the back door inner panel 20 is transmitted to the connecting section 31 through the load-bearing section 32 and then to the back door outer panel 10. After the connecting section 31 is attached to the inner surface of the back door outer panel 10, the contact area between the connecting section 31 and the back door outer panel 10 is increased. According to the pressure formula P=F / S, it can be seen that the pressure generated between the contact part of the connecting section 31 and the back door outer panel 10 is reduced, which can effectively protect the structure of the back door outer panel 10. In addition, the load-bearing section 32 is inclined. When the back door inner panel 20 is subjected to external force, the load-bearing section 32 is easily deformed to convert the external force transmitted from the back door inner panel 20 to the load-bearing section 32 into elastic potential energy, so as to enhance the structural strength of the back door. Among them, P represents pressure, F represents vertical force (pressure), and S represents the force area.

[0039] Since the load-bearing section 32 needs to generate deformation to absorb the external force transmitted to the load-bearing section 32 by the back door inner panel 20, the load-bearing section 32 can be made of aluminum alloy, which has excellent elastic deformation ability and high strength to withstand large external forces. It is understandable that the connecting section 31 can also be made of aluminum alloy, and aluminum alloy has good plasticity, which makes it easy to process the connecting section 31 into a shape that fits the inner surface of the back door outer panel 10. In this case, the load-bearing section 32 and the connecting section 31 can be formed by sheet metal parts in one piece.

[0040] Please refer to Figure 3 As shown, in other embodiments of the present application, the support member 30 includes two connecting sections 31 and a load-bearing section 32, wherein one connecting section 31 is connected to the tailgate outer panel 10 and fits against the inner surface of the tailgate outer panel 10; the other connecting section 31 is connected to the tailgate inner panel 20 and fits against the inner surface of the tailgate inner panel 20, and both ends of the load-bearing section 32 are respectively connected to the two connecting sections 31, and the load-bearing section 32 gradually decreases in height along the vehicle body height direction from one end connected to the connecting section 31 to the other end connected to the tailgate inner panel 20.

[0041] Please refer to Figure 3 As shown, in some embodiments of the present application, a plurality of weight-reducing openings 212 are provided on the bottom wall of the capacity expansion groove 211. The plurality of weight-reducing openings 212 can reduce the weight of the tailgate inner panel 20, thereby reducing the weight of the tailgate. It can be understood that the plurality of weight-reducing openings 212 can be evenly arranged on the bottom wall of the capacity expansion groove 211 to ensure that the structural strength of each portion of the bottom wall of the capacity expansion groove 211 is the same.

[0042] It can be understood that the weight-reducing opening 212 is a closed incision formed on the bottom wall of the expansion groove 211 to cut part of the material to form the weight-reducing opening 212. In order to simplify the processing technology of the back door inner panel 20, in some embodiments of the present application, when cutting the weight-reducing opening 212, only part of the incision is cut, that is, there is still a connecting part between the part to be cut and the bottom wall of the expansion groove 211, and the connection between the part to be cut and the bottom wall of the expansion groove 211 is bent toward the cavity to form a support member 30. For example, the weight-reducing opening 212 is a rectangular opening, and three edges of the weight-reducing opening 212 are cut on the bottom wall of the expansion groove 211. At this time, the part to be cut still has an edge connected to the bottom wall of the expansion groove 211, and the part to be cut is bent along the edge to form a support member 30; this method is only applicable to the support member 30 including a load-bearing section 32 and a connecting section 31.

[0043] Please refer to Figure 4As shown, in some embodiments of the present application, the tailgate further includes an interior trim 50, which is arranged in contact with the side of the tailgate inner panel 20 away from the tailgate outer panel 10 and at least covers a plurality of weight-reducing openings 212. After the interior trim 50 covers the plurality of weight-reducing openings 212, it can not only prevent items placed in the vehicle compartment from entering between the tailgate inner panel 20 and the tailgate outer panel 10 through the weight-reducing openings 212, but also improve the aesthetics of the interior of the vehicle compartment.

[0044] The interior decoration part 50 is used to decorate the side of the tailgate inner panel 20 away from the tailgate outer panel 10, that is, the interior decoration part 50 is used to decorate the inner side of the tailgate. The interior decoration part 50 in the embodiment of the present application can be configured as an interior decoration panel. The material of the interior decoration panel can be polypropylene. Polypropylene has chemical resistance, heat resistance, high-strength mechanical properties and good high wear resistance, and is suitable for working environments where items stored in the car are prone to wear.

[0045] Please refer to Figure 3 As shown, in some embodiments of the present application, the back door also includes a decorative panel 40, which is detachably connected to the back door inner panel 20. When the decorative panel 40 is connected to the back door inner panel 20, the decorative panel 40 covers the notch of the expansion groove 211, so that the decorative panel 40 and the interior decoration 50 form a storage cavity; when the volume of the vehicle compartment is sufficient for use, the decorative panel 40 can be fixedly connected to the back door inner panel 20, and the decorative panel 40 covers the notch of the expansion groove 211, which not only forms a storage cavity for placing items between the decorative panel 40 and the interior decoration 50, but also enhances the aesthetics of the vehicle; when the volume of the vehicle compartment is insufficient, the decorative panel 40 can be separated from the back door inner panel 20 to expand the volume of the vehicle compartment.

[0046] The decorative panel 40 is used to decorate the tailgate. When the decorative panel 40 is connected to the tailgate inner panel 20 and the tailgate is in the maximum open position, the top surface of the decorative panel 40 is flush with the bottom surface of the vehicle compartment, so that the cargo in the compartment can be taken out along the top surface of the decorative panel 40. Alternatively, when the cargo is long, the tailgate can be in the maximum open position to extend the length of the vehicle body, that is, the tailgate can lift the cargo through the decorative panel 40; or, the tailgate can be in the maximum open position for users to sit on during leisure time.

[0047] Please refer to Figure 3 As shown, in some embodiments of the present application, the distance from the axis of the expansion groove 211 to at least part of the side wall of the expansion groove 211 gradually increases from one end connected to the bottom wall of the expansion groove 211 to one end connected to the notch of the expansion groove 211. When the back door is at the maximum opening position and the user places items on the back door, the overlapping inclined walls facilitate the conduction of force. In combination with the above-mentioned configuration of the expansion groove 211 as a rectangular groove, any side wall of the expansion groove 211 can be inclined.

[0048] Please refer to Figure 1 , Figure 2 or Figure 3 As shown, in some embodiments of the present application, the vehicle body is provided with a rear bumper, the tailgate inner panel 20 includes a main body 21 and a lower flange 22, the expansion groove 211 is provided in the main body 21, and the lower flange 22 is recessed in a direction away from the rear bumper to form an avoidance groove 221, and the avoidance groove 221 is used to avoid the rear bumper when the tailgate rotates between the maximum open position and the closed position.

[0049] The avoidance groove 221 is used to avoid the rear bumper when the tailgate rotates between the maximum open position and the closed position. In some embodiments of the present application, the lower flange 22 can be moved upward as a whole to form the avoidance groove 221.

[0050] Please refer to Figure 1 As shown, in some embodiments of the present application, a portion of the back door outer panel 10 is recessed toward the back door inner panel 20 to form a receiving groove 11, and the receiving groove 11 is used to receive the license plate. In this way, it is convenient to position and fix the license plate. It can be understood that since the shape and size of the license plate have a unified standard, for example, the license plate size of a small car is a rectangular structure of 440mm×140mm, then the corresponding shape of the receiving groove 11 is set to a rectangular groove, and the size of the rectangular groove should be not less than 440mm×140mm, so that the receiving groove 11 can accommodate the license plate.

[0051] In a second aspect, an embodiment of the present application provides a vehicle, comprising a body and a tailgate as described above, wherein the tailgate is rotatably connected to the body.

[0052] Based on the vehicle in the embodiment of the present application, due to the above-mentioned tailgate, the vehicle of the present application has a stronger carrying capacity.

[0053] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0054] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A back door, characterized in that: The back door comprises: Rear door outer panel; A tailgate inner panel is fixedly connected to the tailgate outer panel, the tailgate outer panel and the tailgate inner panel are surrounded by a cavity, a portion of the tailgate inner panel is recessed toward the tailgate outer panel so that an expansion groove is formed on the side of the tailgate inner panel away from the tailgate outer panel, and the expansion groove is used to communicate with the vehicle compartment.

2. The tailgate according to claim 1, characterized in that: The back door also includes: A support member is located in the cavity, one end of the support member is connected to the back door outer panel, and the other end of the support member is connected to the bottom wall of the expansion groove.

3. The tailgate according to claim 2, characterized in that: The support member comprises: A connecting section, the connecting section is connected to the back door outer panel and is attached to the surface of the back door outer panel; A load-bearing section, one end of which is connected to the connecting section, and the other end of which is connected to the tailgate inner panel. The load-bearing section gradually decreases in height along the vehicle height direction from one end connected to the connecting section to one end connected to the tailgate inner panel.

4. The tailgate according to claim 1, characterized in that: The bottom wall of the capacity expansion groove is provided with a plurality of weight-reducing openings.

5. The tailgate according to claim 4, characterized in that: The back door also includes: An interior decoration component is arranged in contact with a side of the tailgate inner panel away from the tailgate outer panel and at least covers a plurality of the weight-reducing openings.

6. The tailgate according to claim 5, characterized in that: The back door also includes: A decorative plate is detachably connected to the back door inner plate. When the decorative plate is connected to the back door inner plate, the decorative plate covers the notch of the expansion groove. The decorative plate and the interior decoration component form a storage cavity.

7. The tailgate according to claim 1, characterized in that: From the bottom wall of the expansion groove to the notch of the expansion groove, the distance between at least a portion of the side wall of the expansion groove and the axis of the expansion groove gradually increases.

8. The tailgate according to claim 1, characterized in that: The vehicle is provided with a rear bumper; The back door inner panel includes a main body and a lower flange, the expansion groove is arranged in the main body, and the lower flange is recessed in a direction away from the rear bumper to form an avoidance groove, and the avoidance groove is used to avoid the rear bumper when the back door rotates between the maximum open position and the closed position.

9. The tailgate according to any one of claims 1 to 8, characterized in that: The back door outer panel portion is recessed toward the back door inner panel to form a receiving groove, and the receiving groove is used to receive the license plate.

10. A vehicle, characterized in that: include: body; and, The tailgate according to any one of claims 1 to 9, wherein the tailgate is rotatably connected to the vehicle body.

Images