Car door and car

Abstract

The utility model provides an automobile door and an automobile, and relates to the technical field of automobile parts. The automobile door comprises an inner plate, an outer plate and an internal reinforcing framework, the outer plate and the inner plate define a surface layer structure of the automobile door, and the internal reinforcing framework is of a closed-loop structure, is located in the surface layer structure and is connected with the inner plate and the outer plate. When the vehicle door is stressed, for example, when the vehicle door is subjected to an impact load given by a vehicle body due to door closing, the internal reinforcing framework of the closed-loop structure can serve as a main stress structure of the impact load, and therefore the rigidity of the whole vehicle door can be greatly enhanced; and the internal reinforcing framework of the closed-loop structure can enable the borne load to be quickly and uniformly dispersed to the whole vehicle door, so that local stress concentration of the vehicle door can be avoided, and the rigidity and durability of the vehicle door are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a vehicle door and a vehicle. Background Art

[0002] Automobile doors usually refer to doors installed on the side of the vehicle, which are used for entering and exiting the car. Automobile doors have certain requirements for rigidity, because the doors need to withstand various external forces during the driving process of the vehicle, including collision, vibration and distortion, and also need to withstand the reaction force from the body when the door is closed (when the door is closed, the door will hit the body, and the body will give the door a reaction force, which will give the door an impact load). However, considering the lightweight design of the vehicle and the fact that the door glass sometimes needs to be retracted into the door, the interior of the door needs to be designed as a hollow structure, and the sheet metal thickness of the door is relatively thin. Although some reinforcement plates are usually set inside the existing door, such as a reinforcement plate set on the inner plate, although the rigidity of the door is improved to a certain extent, the rigidity of the door still has certain deficiencies, especially the rigidity problem of frameless doors is more serious. Utility Model Content

[0003] The utility model aims to improve the rigidity of a vehicle door.

[0004] In order to solve the above problems, the utility model provides a vehicle door, including an inner panel, an outer panel and an internal reinforcement frame, the outer panel and the inner panel together form the surface structure of the vehicle door, the internal reinforcement frame is a closed-loop structure and is located inside the surface structure, and the internal reinforcement frame is respectively connected to the inner panel and the outer panel.

[0005] Compared with the prior art, the vehicle door provided by the present invention has but is not limited to the following technical effects:

[0006] As in the prior art, the inner and outer panels of the vehicle door are combined to form the surface structure of the vehicle door; the difference from the prior art is at least that an internal reinforcement frame is provided in the surface structure, and the internal reinforcement frame is a closed loop structure, that is, the internal reinforcement frame is not a reinforcement plate of a plate structure in the traditional sense, but can be a frame structure similar to a closed loop structure, and the internal reinforcement frame of this structure is respectively connected and fixed with the inner and outer panels of the surface structure. In this way, when the vehicle door is subjected to stress, for example, when the vehicle door is subjected to an impact load given by the vehicle body due to closing the door, the internal reinforcement frame in a closed loop structure can serve as the main stress-bearing structure of the impact load, thereby greatly enhancing the rigidity of the entire vehicle door, and the internal reinforcement frame in a closed loop structure can make the load quickly and evenly dispersed to the entire vehicle door, thereby avoiding local stress concentration of the vehicle door, for example, reducing the stress at the connection and fixing point between the internal reinforcement frame and the surface structure, and for example, reducing the stress at the connection and fixing point between the inner panel and the outer panel, thereby avoiding cracking at the connection position, and improving the rigidity and durability of the vehicle door.

[0007] Furthermore, the internal reinforcement frame includes an inner panel waistline reinforcement plate, a hinge reinforcement plate and an outer panel waistline reinforcement plate, and the inner panel waistline reinforcement plate, the hinge reinforcement plate and the outer panel waistline reinforcement plate are sequentially connected end to end to form the closed loop structure.

[0008] Furthermore, the vehicle door is a frameless vehicle door, and a portion of the edge of the inner panel waistline reinforcement plate is affixed to and connected to at least a portion of the edge of each notch on the inner panel.

[0009] Further, the position where the inner panel waistline reinforcement plate is connected to the hinge reinforcement plate is the first position, the position where the hinge reinforcement plate is connected to the outer panel waistline reinforcement plate is the second position, and the position where the outer panel waistline reinforcement plate is connected to the inner panel waistline reinforcement plate is the third position;

[0010] At the first position, the inner panel, the hinge reinforcement plate and the inner panel waistline reinforcement plate are sequentially attached and connected; and / or, at the second position, the inner panel, the hinge reinforcement plate and the outer panel waistline reinforcement plate are sequentially attached and connected; and / or, at the third position, the inner panel, the inner panel waistline reinforcement plate and the outer panel waistline reinforcement plate are sequentially attached and connected.

[0011] Furthermore, the first position is located at a lower edge of a corresponding notch on the inner plate.

[0012] Furthermore, a portion of the inner panel waistline reinforcement plate is protruding toward the outer panel waistline reinforcement plate and is provided with a hollow protrusion, and at least a portion of the protrusion is located below the notch of the inner panel near the hinge reinforcement plate.

[0013] Furthermore, a first flange is provided at one end of the inner panel waistline reinforcement plate, and at the first position, the first flange is attached to and connected to the hinge reinforcement plate.

[0014] Furthermore, a portion of the inner panel waistline reinforcement plate at the third position is provided with a reinforcement rib, and the reinforcement rib extends along an edge of a corresponding notch on the inner panel.

[0015] Further, at the first position, the inner panel, the hinge reinforcement plate and the inner panel waistline reinforcement plate are connected and fixed by at least two weld points; and / or, at the second position, the inner panel, the hinge reinforcement plate and the outer panel waistline reinforcement plate are connected and fixed by at least two weld points; and / or, at the third position, the inner panel, the inner panel waistline reinforcement plate and the outer panel waistline reinforcement plate are connected and fixed by at least two weld points.

[0016] The utility model also provides a car, comprising the car door as mentioned above.

[0017] Since the technical improvements and technical effects of the automobile are the same as those of the car door, the automobile will not be described in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a vehicle door according to an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the split structure of the surface structure and the internal reinforcement frame of the vehicle door of the utility model;

[0020] Figure 3 This is a schematic structural diagram of an internal reinforcement frame of an embodiment of the utility model;

[0021] Figure 4 This is a schematic structural diagram of an embodiment of the utility model in a viewing angle, showing an internal reinforcement frame without an outer panel waistline reinforcement plate;

[0022] Figure 5 for Figure 4 Schematic diagram of the structure from another perspective;

[0023] Figure 6 This is a schematic diagram of the exploded structure of a vehicle door after removing the outer panel of the embodiment of the utility model;

[0024] Figure 7 This is a schematic structural diagram of a hinge reinforcement plate according to an embodiment of the utility model;

[0025] Figure 8 This is a schematic diagram of the structure of the inner plate of an embodiment of the utility model;

[0026] Fig. 9It is a schematic structural diagram of the inner panel waistline reinforcement plate of an embodiment of the utility model.

[0027] Description of reference numerals:

[0028] 1. Inner plate; 11. Notch; 12. First plate portion; 13. Second plate portion; 2. Outer plate; 3. Internal reinforcement frame; 31. Inner plate waistline reinforcement plate; 311. Raised portion; 312. First flange; 313. Reinforcement rib; 314. Notch; 315. Third plate portion; 316. Fourth plate portion; 32. Hinge reinforcement plate; 321. Second flange; 322. Third flange; 33. Outer plate waistline reinforcement plate. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0030] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] Moreover, the Z axis in the accompanying drawings represents the vertical direction, which also refers to the vertical direction of the car, that is, the up and down direction, and the positive direction of the Z axis represents the top, and the negative direction of the Z axis represents the bottom; the Y axis in the accompanying drawings represents the horizontal direction, which also refers to the horizontal direction of the car, that is, the left and right direction, and the positive direction of the Y axis represents the right, and the negative direction of the Y axis represents the left; the X axis in the accompanying drawings represents the longitudinal direction, which also refers to the longitudinal direction of the car, that is, the front and back direction, and the positive direction of the X axis represents the back, and the negative direction of the X axis represents the front. It should also be noted that the aforementioned Z axis, Y axis and X axis are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the utility model.

[0032] See also Figure 1-2 A vehicle door according to an embodiment of the utility model comprises an inner panel 1, an outer panel 2 and an internal reinforcement frame 3. The outer panel 2 and the inner panel 1 enclose a surface structure of the vehicle door, and the internal reinforcement frame 3 is a closed-loop structure and is located inside the surface structure. The internal reinforcement frame 3 is connected to the inner panel 1 and the outer panel 2 respectively.

[0033] In this embodiment, as in the prior art, the inner panel 1 and the outer panel 2 of the door are enclosed to form the surface structure of the door; the difference from the prior art is at least that an internal reinforcement frame 3 is provided in the surface structure, and the internal reinforcement frame 3 is a closed loop structure, that is, the internal reinforcement frame 3 is not a reinforcement plate of a plate structure in the traditional sense, but can be a frame structure similar to a closed loop structure, and the internal reinforcement frame 3 of this structure is respectively connected and fixed with the inner panel 1 and the outer panel 2 of the surface structure. In this way, when the door is subjected to force, for example, when the door is subjected to an impact load given by the vehicle body due to closing the door, the internal reinforcement frame 3 in a closed loop structure can serve as the main force-bearing structure of the impact load, thereby greatly enhancing the rigidity of the entire door, and the internal reinforcement frame 3 in a closed loop structure can make the load quickly and evenly dispersed to the entire door, avoiding local stress concentration of the door, for example, reducing the force at the connection and fixing point between the internal reinforcement frame 3 and the surface structure, and for example, reducing the force at the connection and fixing point between the inner panel 1 and the outer panel 2, thereby avoiding cracking at the connection position, and improving the rigidity and durability of the door.

[0034] In the prior art, the waistline stiffness of the car door is particularly important, and the waistline stiffness determines the overall stiffness and stability of the car door. Specifically, the waistline stiffness of the car door directly affects the performance of the car door during a collision. Sufficient waistline stiffness can provide better protection during a collision, reduce deformation and damage to the car door, and thus protect the safety of passengers in the car; the waistline stiffness of the car door also affects the overall structural stability of the car door. Sufficient waistline stiffness can reduce the vibration and deformation of the car door, improve the stability of the car door, and thus improve the comfort and safety of the vehicle; the waistline stiffness of the car door also has an important impact on the sound insulation and heat insulation performance of the car door. Since sufficient waistline stiffness can reduce the vibration and deformation of the car door, it can improve the sealing performance of the car door, thereby improving the sound insulation and heat insulation effect inside the vehicle.

[0035] In the present embodiment, optionally, the internal reinforcement frame 3 includes an inner panel waistline reinforcement plate 31, a hinge reinforcement plate 32 and an outer panel waistline reinforcement plate 33, and the inner panel waistline reinforcement plate 31, the hinge reinforcement plate 32 and the outer panel waistline reinforcement plate 33 are connected end to end in sequence to form the closed loop structure.

[0036] Here, the internal reinforcement frame 3 is a closed-loop structure formed by three reinforcement plates, and the three reinforcement plates are respectively an inner panel waistline reinforcement plate, a hinge reinforcement plate and an outer panel waistline reinforcement plate, wherein at least a portion of the inner panel waistline reinforcement plate 31 is attached to and connected to the inner panel 1, so as to strengthen the waistline stiffness of the inner panel like the existing inner panel waistline reinforcement plate, at least a portion of the outer panel waistline reinforcement plate 33 is attached to and connected to the outer panel 2, so as to strengthen the waistline stiffness of the outer panel like the existing outer panel waistline reinforcement plate, and at least a portion of the hinge reinforcement plate 32 is attached to and connected to the inner panel 1, so as to increase the stiffness of the door hinge installation like the existing hinge reinforcement plate. In addition, the difference from the existing inner panel waistline reinforcement plate, hinge reinforcement plate and outer panel waistline reinforcement plate is that the inner panel waistline reinforcement plate 31, hinge reinforcement plate 32 and outer panel waistline reinforcement plate 33 of this embodiment can be connected end to end in sequence through some styling extension and / or bending designs to form an internal reinforcement skeleton 3 with a closed-loop structure. The structure is simple, does not require the design of too many parts, and the process is easy to implement.

[0037] It should be noted that since the hinge reinforcement plate 32 is used to install the door hinge and is located at the front end or rear end of the door, the end of the inner panel waistline reinforcement plate 31 connected to the hinge reinforcement plate 32 and the end of the outer panel waistline reinforcement plate 33 connected to the hinge reinforcement plate 32 are both the ends of the door where the hinge is provided, that is, located at the front end or rear end of the door. Correspondingly, the position where the inner panel waistline reinforcement plate 31 is connected to the outer panel waistline reinforcement plate 33 is at the rear end or front end of the door.

[0038] In order to avoid confusion, the following text uses the example of the door hinge being at the front end of the door for explanation. At this time, the end of the inner panel waistline reinforcement plate 31 connected to the hinge reinforcement plate 32 and the end of the outer panel waistline reinforcement plate 33 connected to the hinge reinforcement plate 32 are both at the front end of the door; correspondingly, the position where the inner panel waistline reinforcement plate 31 is connected to the outer panel waistline reinforcement plate 33 is at the rear end of the door.

[0039] In the prior art, with the development of automobiles, more and more frameless doors are used in some mid-to-high-end models. Frameless doors can make the car more beautiful, technological and fashionable. However, due to the particularity of the sealing structure of frameless doors, the waistline position of the inner panel of the door needs to be notched at both ends, that is, notches need to be opened at the front and rear ends of the top of the inner panel. Due to the setting of the notch, the waistline stiffness of the inner panel and even the entire door will be reduced, especially the stiffness of the inner panel near the notch will be reduced. Due to the reduction in stiffness, in the closing durability test of the frameless door, when the frameless door is subjected to the impact load given by the body, and when the frameless door is subjected to the shaking load when the door glass is closed, the notch area opened at both ends of the waistline position of the inner panel will produce a large stress concentration, and the connection position between the components will also be subjected to a large load, so that the sheet metal and connection position cracking problems often occur in this area during the door closing durability test. In addition, due to the reduced rigidity of the frameless door, the water shearing will result in poor wiping effect when the door glass is raised or lowered, which will cause water on the door glass to leak into the inside of the frameless door; and, due to the reduced rigidity of the frameless door, the stability of the door glass when it is raised or lowered will be poor, which will further increase the shaking load on the frameless door when the door glass is closed.

[0040] In the present embodiment, the vehicle door may be a frameless vehicle door, and a portion of the edge of the inner panel waistline reinforcement plate 31 is affixed to and connected to at least a portion of the edge of each notch 11 on the inner panel 1 .

[0041] Here, the door is a frameless door, that is, the top two ends (front end and rear end) of the inner panel 1 are respectively provided with notches 11. By fitting and connecting a portion of the edge of the inner panel waistline reinforcement plate 31 with at least a portion of the edge of each notch 11 on the inner panel 1, the local rigidity of the inner panel 1 at the notch 11 can be strengthened, thereby solving the above-mentioned problems of the existing frameless door.

[0042] Moreover, since the existing frameless door has a low waistline rigidity, the gap between the inner panel 1 and the top of the outer panel 2 is easily increased due to the impact load and the shaking load, which may cause a gap between the water shear and the door glass, resulting in the water shear not wiping the door glass cleanly during lifting and lowering, causing excessive rainwater to enter the interior of the frameless door (i.e., the interior of the surface structure corresponding to the present invention), causing the internal parts of the frameless door to rust, and increasing the wind noise of the car when the car is driving at high speed, reducing the NVH performance of the vehicle. In the present application, since the waistline rigidity of the frameless door is higher, the risk of the above problems can be reduced, or even completely avoided.

[0043] As mentioned above, the inner panel waistline reinforcement plate 31, the hinge reinforcement plate 32 and the outer panel waistline reinforcement plate 33 are sequentially connected end to end to form the closed loop structure. Figure 3-5 and Figure 8 As shown, the inner plate 1 includes a first plate portion 12 and second plate portions 13 respectively bent at both ends of the first plate portion 12 in the longitudinal direction, and at least part of the notch 11 is opened at a position of the first plate portion 12 close to the second plate portion 13; Figure 3-5 and Figure 7 As shown, at least part of the hinge reinforcement plate 32 is attached to the second plate portion 13 at the front end; Figure 3-5 and Fig. 9 As shown, the inner panel waistline reinforcement plate 31 includes a third plate portion 315 and a fourth plate portion 316 bent at the rear end of the third plate portion 315, at least a portion of the fourth plate portion 316 is attached to the second plate portion 13 at the rear end, an end of the third plate portion 315 away from the fourth plate portion 316 (that is, the front end) is connected to an end of the hinge reinforcement plate 32 close to the first plate portion 12, the front end of the outer panel waistline reinforcement plate 33 is connected to an end of the hinge reinforcement plate 32 away from the first plate portion 12, and the rear end of the outer panel waistline reinforcement plate 33 is connected to the fourth plate portion 316.

[0044] Here, the second plate portion 13 is bent relative to the first plate portion 12, but according to actual modeling needs, the second plate portion 13 itself can also be composed of multiple sections of unit plate portions that are bent in sequence, that is, the second plate portion 13 can be designed with multiple sections of bending according to actual needs; similarly, the fourth plate portion 316 is bent relative to the third plate portion 315, but the fourth plate portion 316 can also be designed with multiple sections of bending according to the modeling of the inner plate 1. Among them, for the inner plate 1 and the inner plate waistline reinforcement plate 31 as a whole, the overall extension direction of the inner plate waistline reinforcement plate 31 is extended along the extension direction of the inner plate 1, and the inner plate waistline reinforcement plate 31 can be completely in contact with the inner plate 1, but because the inner plate waistline reinforcement plate 31 is overall longer, it can also be partially in contact with the inner plate 1.

[0045] Here, the edge of the inner panel waistline reinforcement plate 31 can be connected and fixed to the inner panel 1 through a welding point, which has a higher connection strength and is less likely to cause stress concentration. Similarly, the connection between the hinge reinforcement plate 32 and the inner panel 1 can also be connected and fixed through a welding point, the connection between the inner panel waistline reinforcement plate 31 and the hinge reinforcement plate 32 can also be connected and fixed through a welding point, the connection between the outer panel waistline reinforcement plate 33 and the outer panel 2 can also be connected and fixed through a welding point, the connection between the outer panel waistline reinforcement plate 33 and the hinge reinforcement plate 32 can also be connected and fixed through a welding point, and the connection between the outer panel waistline reinforcement plate 33 and the inner panel waistline reinforcement plate 31 can also be connected and fixed through a welding point.

[0046] It can be understood that the outer panel waistline mounting plate 33 can also be an outer handle mounting plate, which can be used to install an outer handle to increase the strength of the frameless door at the outer handle.

[0047] See also Figure 4-5 and Figure 8 Optionally, a portion of the edge of the inner panel waistline reinforcement plate 31 is affixed to and connected to at least a portion of the edge of each notch 11 on the inner panel 1 .

[0048] In this embodiment, the inner panel waistline reinforcement plate 31 does not block the notch 11 of the inner panel 1, and a portion of the edge of the inner panel waistline reinforcement plate 31 is attached to and connected with at least a portion of the edge of the notch 11, that is, the shape of the portion of the edge of the inner panel waistline reinforcement plate 31 is the same as the shape of the inner panel 1 at the notch 11, such as Fig. 9 As shown, notches 314 are respectively provided at the top ends of the inner waistline reinforcement plate 31. Figure 4-5 and Figure 8 , the two notches 314 correspond to the corresponding notches 11. In this way, the inner panel waistline reinforcement plate 31 is equivalent to thickening the thickness of the inner panel 1 at the edge of the notch 11, so that the inner panel waistline reinforcement plate 31 not only increases the rigidity of the inner panel 1 as a whole, but also strengthens the rigidity of the local area of ​​the inner panel 1 at the notch 11, thereby enabling the inner panel 1 to withstand higher stress at the notch 11.

[0049] See also Figure 6 Optionally, the position where the inner panel waistline reinforcement plate 31 is connected to the hinge reinforcement plate 32 is the first position, the position where the hinge reinforcement plate 32 is connected to the outer panel waistline reinforcement plate 33 is the second position, and the position where the outer panel waistline reinforcement plate 33 is connected to the inner panel waistline reinforcement plate 31 is the third position;

[0050] At the first position, the inner panel 1, the hinge reinforcement plate 32 and the inner panel waistline reinforcement plate 31 are sequentially attached and connected; and / or, at the second position, the inner panel 1, the hinge reinforcement plate 32 and the outer panel reinforcement plate 33 are sequentially attached and connected; and / or, at the third position, the inner panel 1, the inner panel waistline reinforcement plate 31 and the outer panel waistline reinforcement plate 33 are sequentially attached and connected.

[0051] In this embodiment, Figure 6 The exploded view of the inner panel 1, the hinge reinforcement plate 32, the inner panel waistline reinforcement plate 31 and the outer panel waistline reinforcement plate 33 in the Y-axis direction is shown in the figure. Figure 6 At B in the figure), the inner panel waistline reinforcement plate 31, the hinge reinforcement plate 32 and the inner panel 1 (specifically, the first plate portion 12 of the inner panel 1) are sequentially attached and connected along the positive direction of the Y axis; at the second position (that is, Figure 6A in the figure), the outer panel waistline reinforcement plate 33, the hinge reinforcement plate 32, and the inner panel (specifically, the second plate portion 13 at the front end of the inner panel) are sequentially attached and connected along the positive direction of the Y axis; wherein, Figure 6 and Figure 7 As shown, the hinge reinforcement plate 32 extends as a whole along the Y-axis direction, and a second hinge reinforcement plate flange 321 may be provided at one end of the hinge reinforcement plate 32 close to the positive direction of the Y-axis. At the first position, the second hinge reinforcement plate flange 321 is located between the inner panel 1 and the inner panel waistline reinforcement plate 31, specifically between the first plate portion 12 of the inner panel 1 and the inner panel waistline reinforcement plate 31, that is, the inner panel waistline reinforcement plate 31, the second hinge reinforcement plate flange 321 and the first plate portion 12 are sequentially adhered and connected; the hinge reinforcement plate 32 may be provided at one end of the hinge reinforcement plate 32 close to the negative direction of the Y-axis. At the second position, the third hinge reinforcement plate flange 322 is located between the inner panel 1 and the outer panel waistline reinforcement plate 33, specifically between the second plate portion 13 at the front end of the inner panel 1 and the outer panel waistline reinforcement plate 33, that is, the outer panel waistline reinforcement plate 33, the third hinge reinforcement plate flange 322 and the second plate portion 13 at the front end are sequentially adhered and connected.

[0052] At the third position (i.e. Figure 6 C in the figure), specifically, the rear end of the second plate portion 13, the inner panel waistline reinforcement plate 31 and the rear end of the outer panel waistline reinforcement plate 33 are sequentially attached and connected. Finally, the inner panel waistline reinforcement plate 31, the hinge reinforcement plate 32 and the outer panel waistline reinforcement plate 33 are "attached end to end" together and then connected and fixed when connected end to end, thereby improving the rigidity and strength of the entire internal reinforcement frame 3. In addition, at the first position, the inner panel 1 is also attached to the hinge reinforcement plate 32, at the second position, the inner panel 1 is also attached to the hinge reinforcement plate 32, and at the third position, the inner panel 1 is attached to the inner panel waistline reinforcement plate 31, so that the rigidity and closing durability of the frameless door can be further improved.

[0053] Optionally, at the first position, the inner panel 1, the hinge reinforcement plate 32 and the inner panel waistline reinforcement plate 31 are connected and fixed by at least two welds; and / or, at the second position, the inner panel 1, the hinge reinforcement plate 32 and the outer panel waistline reinforcement plate 33 are connected and fixed by at least two welds; and / or, at the third position, the inner panel 1, the inner panel waistline reinforcement plate 31 and the outer panel waistline reinforcement plate 33 are connected and fixed by at least two welds.

[0054] Here, at the first position, the portion where the inner panel 1, the hinge reinforcement plate 32, and the inner panel waistline reinforcement plate 31 are sequentially attached can also be connected and fixed by three layers of welding points, and the number of the three layers of welding points can be multiple and distributed at intervals to improve the connection strength. At the second position, the portion where the inner panel 1, the hinge reinforcement plate 32, and the outer panel waistline reinforcement plate 33 are sequentially attached can also be connected and fixed by three layers of welding points, and the number of the three layers of welding points can be multiple and distributed at intervals to improve the connection strength. At the third position, the portion where the inner panel 1, the inner panel waistline reinforcement plate 31, and the outer panel waistline reinforcement plate 33 are sequentially attached can also be connected and fixed by three layers of welding points, and the number of the three layers of welding points can be multiple and distributed at intervals to improve the connection strength. As for the portion of the internal reinforcement frame 3 except the first position, the second position, and the third position, it can be connected and fixed to the surface structure by two layers of welding points.

[0055] See also Figure 4 and Figure 6 Optionally, the first position is at the lower edge of the corresponding notch 11 on the inner panel 1. That is, the portion where the inner panel 1, the inner panel waistline reinforcement plate 31 and the hinge reinforcement plate 32 are sequentially attached and connected is at the lower edge of the corresponding notch 11 on the inner panel 1.

[0056] In this embodiment, part of the hinge reinforcement plate 32, that is, the second flange 321 of the hinge reinforcement plate mentioned above, is located at the lower edge of the corresponding notch 11 (front notch 11), which is equivalent to thickening the thickness of the inner panel 1 at the lower edge of the front notch 11, and further strengthening the rigidity of the local area of ​​the inner panel 1 at the notch 11. The part of the inner panel waistline reinforcement plate 31 at the first position is also located at the lower edge of the front notch 11, that is, the inner panel 1 is thickened in two layers (one layer is the hinge reinforcement plate 32, and the other layer is the inner panel waistline reinforcement plate 31) at the lower edge of the notch 11, which has a better effect on strengthening the rigidity of the inner panel 1 at the notch 11.

[0057] See also Figure 4 Optionally, a portion of the inner panel waistline reinforcement plate 31 is protruding toward the outer panel waistline reinforcement plate 33 and is provided with a hollow protrusion 311, and at least a portion of the protrusion 311 is located below the notch 11 of the inner panel 1 near the hinge reinforcement plate 32, that is, at least a portion of the protrusion 311 is located below the front end notch 11.

[0058] In this embodiment, a portion of the inner panel waistline reinforcement plate 31 protrudes toward the outer panel waistline reinforcement plate 33 and is provided with a hollow protrusion 311, that is, this portion of the inner panel waistline reinforcement plate 31 facing the inner panel 1 forms a hollow cavity with the inner panel 1, and at least part of the hollow cavity is below the front end notch 11, and this part of the hollow cavity can be close to the lower edge of the front end notch 11, thereby further increasing the rigidity of the notch 11. Among them, at least part of the hollow cavity is close to the front end notch 11, which means that at least part of the position of the hollow cavity is based on the position that can play a role in strengthening the rigidity of the front end notch 11.

[0059] See also Figure 4 and Fig. 9 Optionally, a first flange 312 is provided at one end of the inner panel waistline reinforcement plate 31 , and at the first position, the first flange 312 is attached to and connected to the hinge reinforcement plate 32 .

[0060] In this embodiment, a first flange 312 is provided at the front end of the inner panel waistline reinforcement plate 31, and the first flange 312 is attached to the hinge reinforcement plate 32. The first flange 312 and the hinge reinforcement plate 32 and the inner panel 1 (specifically, the second plate portion 13 at the front end) can be connected and fixed by three layers of welds, thereby further improving the rigidity of the entire frameless door and the front notch 11.

[0061] The first flange 312 is provided with weakened cutouts at both ends of its extension direction, that is, at its upper end and lower end. If the overall size of the inner panel waistline reinforcement plate 31 in the X direction is slightly larger than the design size due to manufacturing problems, or / and if the distance from the assembled hinge reinforcement plate 32 to the fourth plate portion 316 is slightly smaller than the design size due to manufacturing problems, the first flange 312 can be bent to deform backward or forward to achieve that the inner panel waistline reinforcement plate 31 can be placed between the hinge reinforcement plate 32 and the fourth plate portion 316.

[0062] See also Figure 4-5 Optionally, the inner panel waistline reinforcement plate 31 is provided with a reinforcement rib 313 at the third position, and the reinforcement rib 313 extends along the edge of the corresponding notch 11 (the rear end notch 11 in the figure) on the inner panel 1.

[0063] In this embodiment, a reinforcing rib 313 is provided at the rear portion of the inner panel waistline reinforcing plate 31, specifically at the fourth plate portion 316, and the reinforcing rib 313 extends along the edge of the rear end notch 11. In this way, on the one hand, the local stiffness of the inner panel 1 at the rear end notch 11 can be increased; on the other hand, the reinforcing rib 313 plays a load guiding role, and the load at the rear end notch 11 can be transferred along the reinforcing rib 313 to the outer panel waistline reinforcing plate 33 and the outer panel 2, thereby reducing the stress concentration of the inner panel 1 at the rear end notch 11. Figure 5 As shown, a plurality of reinforcing ribs 313 may be provided, and the plurality of reinforcing ribs 313 all extend along the edge of the rear end notch 11 , and the plurality of reinforcing ribs 313 are arranged in sequence at intervals to further enhance the load guiding function of the reinforcing ribs 313 and further enhance the stiffness at the rear end notch 11 .

[0064] Optionally, at the third position, a groove (not shown) is provided on the side of the outer panel waistline reinforcement plate 33 facing the inner panel waistline reinforcement plate 31, and at least a portion of the reinforcement rib 313 in its extension direction is accommodated in the groove.

[0065] In this embodiment, at least a portion of the reinforcing rib 313 is accommodated in the groove, thereby ensuring that the presence of the reinforcing rib 313 does not reduce the area of ​​the inner panel waistline reinforcement plate 31 and the outer panel waistline reinforcement plate 33 .

[0066] Another embodiment of the utility model provides a car, comprising the car door as described above.

[0067] Since the technical improvements and technical effects of the automobile are the same as those of the car door, the automobile will not be described in detail.

[0068] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0069] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A vehicle door, characterized in that: The vehicle door comprises an inner panel (1), an outer panel (2) and an internal reinforcement frame (3); the outer panel (2) and the inner panel (1) enclose a surface structure of the vehicle door; the internal reinforcement frame (3) is a closed-loop structure and is located inside the surface structure; the internal reinforcement frame (3) is connected to the inner panel (1) and the outer panel (2) respectively; the internal reinforcement frame (3) comprises an inner panel waistline reinforcement plate (31), a hinge reinforcement plate (32) and an outer panel waistline reinforcement plate (33); the inner panel waistline reinforcement plate (31), the hinge reinforcement plate (32) and the outer panel waistline reinforcement plate (33) are connected end to end in sequence to form the closed-loop structure.

2. The vehicle door according to claim 1, characterized in that: The vehicle door is a frameless vehicle door, and a portion of the edge of the inner panel waistline reinforcement plate (31) is affixed to and connected to at least a portion of the edge of each notch (11) on the inner panel (1).

3. The vehicle door according to claim 2, characterized in that: The position where the inner panel waistline reinforcement plate (31) is connected to the hinge reinforcement plate (32) is the first position, the position where the hinge reinforcement plate (32) is connected to the outer panel waistline reinforcement plate (33) is the second position, and the position where the outer panel waistline reinforcement plate (33) is connected to the inner panel waistline reinforcement plate (31) is the third position; At the first position, the inner panel (1), the hinge reinforcement plate (32) and the inner panel waistline reinforcement plate (31) are sequentially attached and connected; and / or, at the second position, the inner panel (1), the hinge reinforcement plate (32) and the outer panel waistline reinforcement plate (33) are sequentially attached and connected; and / or, at the third position, the inner panel (1), the inner panel waistline reinforcement plate (31) and the outer panel waistline reinforcement plate (33) are sequentially attached and connected.

4. The vehicle door according to claim 3, characterized in that: The first position is located at the lower edge of the corresponding notch (11) on the inner plate (1).

5. The vehicle door according to claim 3, characterized in that: A portion of the inner panel waistline reinforcement plate (31) is provided with a hollow protrusion (311) protruding in the direction of the outer panel waistline reinforcement plate (33), and at least a portion of the protrusion (311) is located below the notch (11) of the inner panel (1) close to the hinge reinforcement plate (32).

6. The vehicle door according to claim 3, characterized in that: A first flange (312) is provided at one end of the inner panel waistline reinforcement plate (31), and at the first position, the first flange (312) is affixed to and connected to the hinge reinforcement plate (32).

7. The vehicle door according to claim 6, characterized in that: The inner panel waistline reinforcement plate (31) is provided with a reinforcement rib (313) at the third position, and the reinforcement rib (313) extends along the edge of the corresponding notch (11) on the inner panel (1).

8. The vehicle door according to claim 3, characterized in that: At the first position, the inner panel (1), the hinge reinforcement plate (32) and the inner panel waistline reinforcement plate (31) are connected and fixed by at least two welding points; and / or, at the second position, the inner panel (1), the hinge reinforcement plate (32) and the outer panel waistline reinforcement plate (33) are connected and fixed by at least two welding points; and / or, at the third position, the inner panel (1), the inner panel waistline reinforcement plate (31) and the outer panel waistline reinforcement plate (33) are connected and fixed by at least two welding points.

9. A car, characterized in that: Comprising a vehicle door as described in any one of claims 1-8.

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